One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com
INSTRUCTION MANUAL
HE-12/HE-4
Modular Headend Chassis
Model
Stock No.
Description
MIRC-12V
MIRC-4D
MIRC-4CUBE-CH
7715
7711
7703
Chassis
Chassis
Chassis
Modular Headend Products
Model
Stock No.
Description
MIPS-12C
MIRC-4CUBE-PS
AMCM-860B
AMCM-860HB
AMCM-860S
AMCM-860HS
MICM-45C
MICM-45S
MIDM-806C
DHDC-DV
DHDC-DH
DHDC-UV
DHDC-UH
AMM-806 MSBC
7722C
7702
7766B
7766HB
7766S
7766HS
7797C
7797S
7740C
6264A
6261A
6265A
6262A
7763
7727
Power Supply
Power Supply
Agile Modulator
Agile Modulator (Horizontal)
Stereo Agile Modulator
Stereo Agile Modulator (Horizontal)
A/V Modulator
Stereo A/V Modulator
Demodulator
Digital High Definition Downconverter (Vertical)
Digital High Definition Downconverter (Horizontal)
Digital High Definition Upconverter (Vertical)
Digital High Definition Upconverter (Horizontal)
Agile Micro Modulator
Sub-Band Block Converter
651204500J
©2009 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.
2
HE-12/HE-4
Instruction Manual
We recommend that you write the following information in the spaces provided below.
Purchase Location Name:
Purchase Location Telephone Number:
Serial Number:
The information contained herein is subject to change without notice. Revisions may be
issued to advise of such changes and/or additions.
Correspondence regarding this publication should be addressed directly to:
Blonder Tongue Laboratories, Inc.
One Jake Brown Road
Old Bridge, NJ 08857
Document Number: 651204500J
Printed in the United States of America.
All product names, trade names, or corporate names mentioned in this document are
acknowledged to be the proprietary property of the registered owners.
This product incorporates copyright protection technology that is protected by U.S. patents and other
intellectual property rights. Reverse engineering or disassembly is prohibited.
HE-12/HE-4
Instruction Manual
Table of Contents
SECTION 1 – GENERAL & SAFETY INSTRUCTIONS........................................................................................................ 4
SECTION 2 – PRODUCT SUMMARY............................................................................................................................... 6
2.1 REVISION HISTORY & REASON....................................................................................................................................... 6
2.2 PRODUCT APPLICATION & DESCRIPTION....................................................................................................................... 6
2.3 PRODUCT SPECIFICATION.............................................................................................................................................. 7
SECTION 3 – INSTALLATION & POWER-UP................................................................................................................... 8
3.1 UNPACKING.................................................................................................................................................................... 8
3.2 INSTALLATION................................................................................................................................................................. 8
3.2 POWER-UP..................................................................................................................................................................... 8
SECTION 4 – QAM OUTPUT CONFIGURATION............................................................................................................. 9
4.1 GENERAL........................................................................................................................................................................ 9
4.2 QUICK CONFIGURATION............................................................................................................................................... 10
4.3 ADVANCED CONFIGURATION........................................................................................................................................ 11
4.3.1 ASI INPUT MODULE.................................................................................................................................................................11
4.3.2 8VSB/QAM INPUT MODULE....................................................................................................................................................12
4.3.2.1 Configuring for 8vsb input.................................................................................................................................12
4.3.2.2 Configuring for QAM Input.................................................................................................................................13
4.3.3 QAM MENU Options..............................................................................................................................................................14
4.3.4 RF OUTPUT MENU Options....................................................................................................................................................15
SECTION 5 – frequently asked questions........................................................................................................... 17
APPENDIX A: CATV CHANNEL FREQUENCY CHART.................................................................................................... 19
3
4
HE-12/HE-4
Instruction Manual
General & Safety Instructions
The STOP sign symbol is intended to alert you to the presence of REQUIRED operating and maintenance
(servicing) instructions that if not followed, may result in product failure or destruction.
The YIELD sign symbol in intended to alert you to the presence of RECOMMENDED operating and maintenance
(servicing) instructions.
The LIGHTNING flash symbol is intended to alert you to the presence of uninsulated "dangerous voltage"
within the product's enclosure that may be sufficient magnitude to constitute a risk of electrical shock.
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT.
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE
NOTE TO CATV SYSTEM INSTALLER
This reminder is provided to call the CATV System Installer’s attention to Article 820-40 of the NEC that provides guidelines for
proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as
close to the point of cable entry as practical.
Safety Instructions
You should always follow these instructions to help ensure
Against injury to yourself and damage to your equipment.
➥ Read all safety and operating instructions before you operate the unit.
➥ Retain all safety and operating instructions for future reference.
➥ Heed all warnings on the unit and in the safety and operating instructions.
➥ Follow all installation, operating, and use instructions.
➥ Unplug the unit from the AC power outlet before cleaning. Use only a damp cloth for cleaning the exterior of the unit.
➥ Do not use accessories or attachments not recommended by Blonder Tongue, as they may cause hazards, and will void the warranty.
➥ Do not operate the unit in high-humidity areas, or expose it to water or moisture.
➥ D
o not place the unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall, causing serious personal injury and damage to the
unit. Install the unit only in a mounting rack designed for 19” rack-mounted equipment.
HE-12/HE-4
Instruction Manual
Safety Instructions - continued
➥ D
o not block or cover slots and openings in the unit. These are provided for ventilation and protection from overheating. Never place the
unit near or over a radiator or heat register. Do not place the unit in an enclosure such as a cabinet without proper ventilation. Do not mount
equipment in the rack space directly above or below the unit.
➥ O
perate the unit using only the type of power source indicated on the marking label. Unplug the unit power cord by gripping the plug, not the
cord.
➥ T he unit is equipped with a three-wire ground-type plug. This plug will fit only into a ground-type power outlet. If you are unable to insert the
plug into the outlet, contact an electrician to replace the outlet. Do not defeat the safety purpose of the ground-type plug.
➥ R
oute power supply cords so that they are not likely to be walked on or pinched by items placed upon or against them. Pay particular attention
to cords at plugs, convenience receptacles, and the point where they exit from the unit.
➥ B
e sure that the outdoor components of the antenna system are grounded in accordance with local, federal, and National Electrical Code (NEC)
requirements. Pay special attention to NEC Sections 810 and 820. See the example shown in the following diagram:
➥ W
e strongly recommend using an outlet that contains surge suppression or ground fault protection. For added protection during a lightning
storm, or when the unit is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the lines between
the unit and the antenna. This will prevent damage caused by lightning or power line surges.
➥ D
o not locate the antenna near overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits.
When installing the antenna, take extreme care to avoid touching such power lines or circuits, as contact with them can be fatal.
➥ Do not overload wall outlets or extension cords, as this can result in a risk of fire or electrical shock.
➥ N
ever insert objects of any kind into the unit through openings, as the objects may touch dangerous voltage points or short out parts. This could
cause fire or electrical shock.
➥ D
o not attempt to service the unit yourself, as opening or removing covers may expose you to dangerous voltage and will void the warranty. Refer
all servicing to authorized service personnel.
➥ Unplug the unit from the wall outlet and refer servicing to authorized service personnel whenever the following occurs:
❏ The power supply cord or plug is damaged;
❏ Liquid has been spilled, or objects have fallen into the unit;
❏ The unit has been exposed to rain or water;
❏ The unit has been dropped or the chassis has been damaged;
❏ The unit exhibits a distinct change in performance.
➥ W
hen replacement parts are required, ensure that the service technician uses replacement parts specified by Blonder Tongue. Unauthorized
substitutions may damage the unit or cause electrical shock or fire, and will void the warranty.
➥ U
pon completion of any service or repair to the unit, ask the service technician to perform safety checks to ensure that the unit is in proper
operating condition.
Returning Product for Repair (or Credit)
A Return Material Authorization (RMA) Number is required on all products returned to Blonder Tongue, regardless if
the product is being returned for repair or credit. Before returning product, please contact the Blonder Tongue Service
Department at 1-800-523-6049, Ext. 4256 or visit our website: www.blondertongue.com for further information.
5
HE-12/HE-4
Instruction Manual
Modular Headend Chassis
MIRC-12V Description
The MIRC-12V is a professional quality modular headend system designed to maximize rack space. The 2 RU MIRC-12V
chassis will house up to 12 single width modules and one MIPS-12C power supply. Modular components consist of
modulators and demodulators. These modular components are fully shielded and are field installable. The MIRC-12V
chassis allows the compact modules to be added from the front of the chassis without removing the chassis from the
rack. Field service and channel upgrades are plug and play. The MIRC-12V chassis is fully compatible with all MICM, MIDM,
AMCM and DHDC series units.
MIRC-12V Chassis
MIRC-12V Specifications
Mechanical
Dimensions (W x H x D): 19 x 3.5 x 7.5 inches
Weight: 1.1 lbs (0.5 kg)
CH
RF
A/V
65
POWER
VIDEO
AUDIO
MICM-c
BLONDER
TONGUE
CH
RF
A/V
65
POWER
VIDEO
AUDIO
MICM-c
BLONDER
TONGUE
CH
RF
A/V
65
POWER
VIDEO
AUDIO
MICM-c
BLONDER
TONGUE
CH
RF
A/V
65
POWER
VIDEO
AUDIO
MICM-c
MIRC-4D Description
The 1RU MIRC-4D chassis includes the modular power supply and holds up to four modules. The chassis (Stock No. 7711)
is compatible with all modules.
BLONDER
TONGUE
6
MIRC-4D
MIRC-4D Specifications
General
Power Requirements: 100 VAC to 240 VAC
Frequency: 50 to 60 Hz
Temperature Range: 0° to +50° C
Output Voltage & Current Capacity:
+12 VDC @ 1.8 Amps
+ 5 VDC @ 1.8 Amps
Mechanical
Dimensions (W x H x D) : 19 x 1.75 x 8.0 inches
Weight: 3 lbs (1.4 kg)
Connectors/Impedance
AC In­put: IEC
DC Output: 4 sets of cables
Accessories Supplied
AC Power Cable, 6 ft., IEC, USA
MIRC-4D
HE-12/HE-4
Instruction Manual
MIRC-4CUBE-CH Description
The MIRC-4CUBE-CH is a standalone version of the MIRC-4. It can be used in any installation where modulators
are required and no standard headend rack is available. The CUBE system consists of a chassis (MIRC-4CUBE-CH),
power supply (MIRC-4CUBE-PS) and any combination of up to four modules.
MIRC-4CUBE-CH Specifications
Dimensions (W x H x D): 7.25 x 6.625 x 7.75 inches
Weight: 6.0 lbs
MIRC-4CUBE-PS Specifications
General
Power Requirements: 120 VAC to 240 VAC
Frequency: 50 to 60 Hz
Temperature Range: 0° to +50° C
Output Voltage & Current Capacity:
+12 VDC @ 1.8 Amps
+ 5 VDC @ 1.8 Amps
MIRC-12V Chassis with MIPS-12C Power Supply
Specifications MIPS-12C (Stock #7722C) (Typical)
General
Power Requirements:
100 VAC to 250 VAC Frequency: 50 to 60 Hz
Temperature Range: 0° to +50° C
Output: +5 VDC @ 5.5 Amps, +12 VDC @ 4 Amps
Mechanical
Dimensions (W x H x D) : 4.16 x 3.5 x 7.50 inches
Weight: 1.10 lbs (0.50 kg)
Connectors/Impedance
AC In­put: IEC
DC Output: 37 pin D
Indicators
Power 1 ON: LED, green
Accessories Supplied
AC Power Cable: 6 Ft, IEC, USA
MIPS-12C Power Supply Connections
All the connectors on the power supply are located on the rear panel.
1. AC INPUT - The power supply accepts standard 100 to 250 VAC inputs.
2.DC Output - The polarized D connector provides 12 sets of +12 VDC,
+5 VDC and ground cables for the modules.
1
2
7
8
HE-12/HE-4
Instruction Manual
AMCM-860B MHz Agile Micro Modulator
Description
The AMCM-860B is a professional quality agile audio/video modulator with an output frequency
range of 54-860 MHz. It joins Blonder Tongue’s impressive family of modular headend components
and works in conjunction with the MIRC-4D and MIRC-12V rack chassis, MIRC-4CUBE-CH and MIPS12C power supply.
The unit provides a modulated aural & visual carrier on any channel in the 54 to 860 MHz range.
Frequency plans including Standard CATV, IRC, HRC and Broadcast are accommodated via front
panel selection. Channel tuning is easily accomplished with the use of front panel switches following
the entry instructions. All channels with appropriate FCC offsets are pre-programmed and tuned
electronically via microprocessor.
Features
• Supports all Broadcast and CATV channels, including HRC and IRC assignments from 54 to 860 MHz.
• Meets FCC docket 21006 aeronautical frequency response offset requirements
• Front panel access to all level controls and indicators
• Integrated stereo encoder available
• Die-cast chassis offers superior RFI protection
The AMCM-860 dissipates twice the wattage in comparison to other Blonder Tongue HE-12 modulators
and demodulators. Due to this wattage increase, care must be taken when installing AMCM-860’s
into an existing MIRC-12 configured with MIPS-12 power supplies (Stock No. 7722 or 7722B). These
power supplies can only support one (1) AMCM-860. Installing more than one AMCM-860 will cause
the power supply to fail. Should two (2) or more AMCM’s be required, the power supply must be
changed to the new MIPS-12C (Stock #7722C) power supply. The “C” version power supply can easily
be identified by the presence of fan vents on the front panel.
A further enhancement to our HE Series product line is the MIRC-12V (Stock #7715) chassis. It is
designed to provide increased ventilation for improved heat dissipation.
HE-12/HE-4
Instruction Manual
Specifications AMCM-860B (Typical)
RF
Frequency Range: 54-860 MHz
Channels: CATV, VHF, UHF (STD, HRC, IRC)
FCC Offset (pre-programmed):
0, +12.5, or 25 kHz
Output Level - Min: +45 dBmV
Output Level Adjust: 15 dB
Aural/Visual Carrier Ratio: -10 to -17 dB
Visual Carrier Frequency Tolerance
Standard Channels: ±5 kHz
FCC Aeronautical Channels: ±3 max kHz
4.5 MHz Aural Inter Carrier Frequency:
±150 Hz
Channel Selectivity:
Adjacent Aural and Below: -40 dB
Adjacent Picture and Above: -50 dB
Spurious Outputs: -60 dBc
C/N Ratio In Channel: 65 dB
Broadband Noise: -76 dBc
Output Impedance: 75 Ω
Output Return Loss: 12 dB
Video
Input Level: 1.0 V p-p
Frequency Response
fv-0.5 MHz to fv+4.2 MHz: ±1.0 dB
P-P Video to RMS Hum Ratio: 65 dB
Video Signal-to-Noise Ratio,
NTC-7 Weighted: 62 dB
Differential Gain: 2.0 %
Differential Phase: 1.0 °
Over Modulation Indicator: 87.5, ±2.5 %
Input Impedance: 75 Ω
Input Return Loss: 24 min, dB
Audio
Input Lev­el: 140 mV RMS minimum
Input Impedance: 10k Ω, Unbalanced
Total Harmonic Distortion (%): 1.0
Stereo Separation (AMCM 860S):
50 Hz - 100 Hz: 15 dB
100 Hz - 1 khz: 25 dB
12 kHz: 18 dB
General
Power Requirement: 5 W
Voltage:
12 VDC @ 280 mA
5 VDC @ 470 mA
Temperature Range: 0 to +50 ° C
Mechanical
Dimensions (W x H x D):
1.15 x 3.5 x 7.5 in.
29 x 89 x 191 mm
Weight: .8 lbs., .36 kg
Connectors
Video Input: "F" Female
L/R Audio Input: RCA Phono (2)
RF Output: “F” Female
Controls
Channel Selection:
Push-Button Switches, UP/DOWN
Video Level: Control
A/V Ratio: Control
Audio Level: Control
RF Output Level: Control
Channel Enter: Push Button
Indicators
Channel Indicator: 2 Digit LED, Red
Video Over Modulation: LED, Red
Audio Over Modulation: LED, Red
Stereo Indicator: LED, Green
9
10 HE-12/HE-4
Instruction Manual
Operating Controls and Indicators
9
3
1. Stereo Indicator - Lit when video and stereo Front Panel 1 4
audio are present.
UP
CHANNEL
ENT
VIDEO
2.Audio/Video Ratio Adjustment STEREO
Adjustment of the A/V Ratio is permitted
RF
AUDIO
A/V
from approximately -17 dB (full clockwise
Level
DN
AMCM-860H
position) to approximately -10 dB (full
counterclockwise position) by rotating the
26
5
8
7
10
potentiometer.
3.Video Adjustment - Adjustment of the Video Modulation Level is permitted by rotating the
potentiometer.
4. Video Over Modulation LED Indicator
5.Audio Adjustment - Adjustment of the Audio Modulation Level is permitted by rotating the
potentiometer.
6.Audio Over Modulation LED Indicator
7. Up/Down Buttons - Used to set the desired channel or mode.
8. +100 Indicator - Lights when channel settings are 100 -135.
9.Channel ENT Button - Enter button used to enter a desired channel or mode.
10. RF Level Adjustment - Potentiometer adjustment used to set the output level. Has a range of
15 dB, optimum performance with a 10 dB adjustment.
11. Video Input - “F” Connector
12. Right Stereo Audio In - RCA Connector
13. Left Stereo Audio or Mono In - RCA Connector
14. Power Connector
15. RF Output - “F” Connector
+100
Front Panel
AMCM
A/V
2
860
STEREO
4
6
AUD
VID
5
DN
UP
CH
8
1
+100
ENT
RF
Level
3
7
9
10
Rear Panel
VIDEO
IN
11
STEREO
RIGHT
12
AUDIO IN
LEFT
MONO
P
O
W
E
R
13
14
15
It is strongly recommended to use the Blonder Tongue MIPS-12C or the MIRC-4D
power supplies with the AMCM-860. It is also recommended to use the optional
headend fan unit (QTHF, Stock No. 6235) when deploying more than 6 AMCM860 units in the MIRC-12V chassis. A rack space above and below the chassis unit
is suggested for heat dissipation and air flow.
RF
OUT
Programming the Unit
The AMCM unit comes factory set to operate in the Standard CATV mode. The unit has 4 valid operating modes: STD CATV,
IRC, HRC & Broadcast UHF/VHF. (Skip to the next section for programming the operating mode)
Programming a Channel
1. N
avigate to the desired channel number by depressing the p UP and q DN buttons.
a. Continuous past 99 for channels 100-135, the +100 red LED will illuminate.
2. P
ress ENTER when you reach the desired channel setting. This will tune the modulator output to the corresponding
channel frequency for this entry.
a. The LED display will blink continuously during the channel programming process and will not change the output
frequency the unit is programmed until ENTER is depressed.
b. T he unit has a special feature that alerts an operator of an inadvertent or desired change to the channel display by
flashing the LED readout. The LED display will continue to flash for 30 seconds if ENTER is not depressed and then
will return to the display of the previously programming channel entry setting.
HE-12/HE-4 11
Instruction Manual
Operating Mode Selection
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF. The AMCM unit comes factory set to operate in
the Standard CATV mode. To change the operating mode:
1. Simultaneously depress p UP and q DN for approximately 5 seconds.
2. The Channel LED display will switch to the operating mode selection.
3. Use p UP or q DN to select the desired mode:
a. C = STD CATV
b. H = HRC
c. I = IRC
d. U = Broadcast (VHF/UHF)
4. After selecting the desired mode depress ENTER to set the mode.
5. The unit will return to the channel display mode.
a. Programming will reflect the mode chosen – See Appendix A for a detailed frequency plan.
b. The programming mode will also flash continuously during the programming process. The LED display will
continue to flash for 30 seconds if ENTER is not depressed and then will return to the display of the previously
programming channel and mode entry setting.
Jumper 2
3 2 1
JUMPER SETTINGS
MONO
Stock No. 7766B
J2 - PIN 2-3
J6 - PIN 2-3
J7 - PIN 2-3
Ö
Pin
1 2 3
1
2
3
Jumper 7
Jumper 6
Jumpers 9, 11 & 10
Stereo PCB
STEREO
Stock No. 7766S
J2 - PIN 1-2
J6 - PIN 1-2
J7 - PIN 1-2
Internal Jumper Settings - AMCM-860B
Troubleshooting - AMCM-860
A continuous flashing CH Display indicates a Error Condition detected by the unit microcontroller. Sample conditions include:
• Channel Selector Entry does not match the channel number on which the modulator is operating, the display will flash for 30
seconds and then revert back to the previous CH entry.
• E1 is displayed if the Input & VCO is Not Locked
• E2 is displayed if the Output VCO is Not Locked
Possible Error Condition Scenarios
1. An Error Condition may occur when a channel number was accidentally altered by changing the push button switch to a
number that is different from the output channel set in memory, or if there was a switch malfunction.
2. An Error Condition may occur when a user sets a new mode and the previously programmed channel is not in the new
mode’s channel range.
SEE APPENDIX A FOR A COMPLETE LIST OF AVAILABLE CHANNELS.
STD CATV; IRC & HRC 1-135 and BROADCAST 2-69
Correction Suggestions
The User should perform the following steps to correct an Error Condition:
1. Check that the Channel Display is set to the desired channel and reset as appropriate
2. Check that the unit is set to the appropriate desired operating mode
3. Verify the unit output on a spectrum analyzer
4. Disconnect and reconnect power to the unit
If an error condition continues to be displayed, unit should be replaced and serviced.
12 HE-12/HE-4
Instruction Manual
MICM-45 Modulators
Description
The MICM-45 is a professional quality, channelized, heterodyne audio/video modulator. The unit provides modulated RF
carrier output on any single VHF channel, including: broadcast TV (2-13), CATV (14-135). The MICM-45 is ideal for placing
audio and video onto any unused VHF channel. Any standard audio/video source can be used, such as satellite receivers,
television cameras, video tape recorders, or television demodulators.
The MICM-45 utilizes SAW filtering with FCC group delay pre-distortion to provide true vestigial sideband selectivity. This
makes the MICM-45 perfect for use in adjacent channel systems.
The MICM-45C takes baseband audio and video and modulates these signals onto the desired output channel. The MICM45S takes baseband L/R audio and video and modulates these signals into the desired output channel. The heterodyne
conversion process used in the MICM-45 employs a crystal referenced, PLL synthesized local oscillator. This guarantees rock
solid, no-drift output for the life of the modulator. The MICM-45 meets FCC Docket 21006 aeronautical frequency offset
requirements (±5 kHz video carrier accuracy). The modulator accepts standard polarity (sync negative) video in the range
of 0.7 to 2.5 V p-p.
The MICM-45C has field defeatable audio pre-emphasis to provide stereo compatibility with any external BTSC stereo
generator providing a composite stereo baseband output.
The MICM-45S is a stereo A/V modulator providing a stereo audio and video modulated RF carrier on any single VHF
channel. All other features and specifications are identical to the MICM-45C except as noted below.
Specifications MICM-45 (Typical)
RF
Frequency Range:
54-860 MHz (Broadcast 2-13, Cable 14-135)
Output Lev­el: +45 dBmV
Output Lev­el Range: 10 dB continuously ad­just­able
Aural/Vi­su­al Carrier Ratio:
-11 to -19 dB continuously adjustable
Visual Carrier Frequency Tol­er­ance:
±10 kHz (standard channels) ± 5 kHz
(aeronautical channels)
Aural Carrier: 4.5 MHz above vi­su­al
Frequency Set­ting: ±1.5 kHz
Spurious Out­puts: -60 dBc, min­i­mum
C/N Ratio In Channel: 60 dB
Broadband Noise: -90 dB
Output Re­turn Loss: 12 dB
IF (Internal) Frequency: 45.750 MHz
Video
Input Lev­el: 1.0 V p-p for 87.5 % mod­u­la­tion
Frequency Response fv -0.5 MHz to fv +4.2 MHz:
±1.0 dB
Video C/N: 60 dB (4 MHz BW)
P-P Vid­eo to RMS Hum Ra­tio: 60 dB
Differential Gain: ±4.0 % @ 87.5% Modulation
Differential Phase: ± 2° @ 87.5% Modulation
Input Re­turn Loss: 18 dB
Audio
Input Lev­el: 140 mV RMS for 25 kHz peak deviation
Input Impedance: 10k Ohm, unbalanced
Frequency Range: 20 Hz to 20 kHz (MICM-45C)
Frequency Response:
±1.0 dB, (50 Hz to 12 kHz) Reference to Std.
75 µs Pre-em­pha­sis (MICM-45C)
± 0.3 dB (50 Hz to 50 kHz) (MICM-45S)
in Stereo Configuration w/o pre-emphasis
Total Harmonic Distortion (%):
1.0 at 25 kHz Deviation
Stereo Separation (MICM-45S):
50 Hz - 100 Hz: 15 dB
100 Hz - 1 kHz: 25 dB
12 kHz: 18 dB
Aural Intercarrier: ±5 kHz (0° to +50° C), std.
General
Power Re­quire­ments
External: +12 VDC @ 160 mA
+5 VDC @ 130 mA (MICM-C)
+5 VDC @ 180 mA (MICM-S)
Temperature Range: 0° to +50° C
Mechanical
Dimensions (W x H x D): 1.2 x 3.5 x 7.5 inches
Weight: 0.65 lbs (0.30 kg)
Connectors/Impedance
Audio In­put: RCA Phono, fe­male (MICM-45C)
L/R Audio Inputs: RCA Phono, female
Video In­put: 75 ohm “F” type, fe­male
RF Out­put: 75 ohm “F” type, female
Power: 3 Pin Header
Controls
Video Level: Pot
Audio Level: Pot
Aural Carrier Level: Pot
RF Out­put Lev­el: Pot
Indicators
Power ON: LED, green
Video Over Modulation: LED, red (MICM-45S)
Audio Over Modulation: LED, red (MICM-45S)
Stereo Indicator: LED, red (MICM-45S)
HE-12/HE-4 13
Instruction Manual
Operating Controls and Indicators - MICM-45
Front Panel
All operating controls are located on, or are ac­ces­si­ble from the front panel.
1.Audio - Adjusts the aural carrier modulation.
1A Audio - Aural carrier modulation control/overmodulation indicator.
2. Stereo Indicator
3.Video - Adjusts the modulation percentage.
3AVideo - Modulation control/overmodulation indicator.
4.Power - The green LED indicates power is present and the fuse is good.
5.A/V - Controls the amplitude of aural RF carrier to change aural/visual ratio.
6.Channel - The modulator is factory aligned to the channel number indicated.
7. RF - The RF pot simultaneously adjusts the am­pli­tude of aural and visual
carriers to the final drive amplifier.
BLONDER
TONGUE
MICM-c
BLONDER
TONGUE
1
MICM-s
2
AUDIO
AUDIO
3
VIDEO
4
POWER
5
VIDEO
POWER
A/V
65
CH
1A
3A
A/V
7
RF
65
CH
RF
6
Rear Panel
All the connectors on the Modulator are located on the rear panel.
1. Video Input - The modulator accepts standard neg­a­tive sync video at a 0.7 to 2.5 Vp-p level.
2.Audio Input - The modulator accepts 140 mV RMS for 25 kHz peak deviation (MICM-C).
Left audio input for MICM-S only.
3. Power - The polarized power connector accepts +12 VDC +5 VDC and ground.
4. Right Audio Input for MICM-S only. Connector not used in MICM-C (capped)
5.RF Out - The filtered RF signal is available for connection to a headend combiner.
1
2
3
4
5
Pre-emphasis Jumper
Position 1-2 = Stereo
Postion 2-3 = Mono
STEREO
1
2
Position 1-2 = Disable
Postion 2-3 = Enable
MONO
DISABLE
3
1
ENABLE
2
3
DC Input
+5 V
+12 V
GND
Internal Jumper Settings
MICM-45C comes factory set for audio pre-emphasis enabled.
14 HE-12/HE-4
Instruction Manual
Internal Jumper Settings - MICM-45B
MICM-45B comes factory set for audio pre-emphasis enabled. There are three (3) MICM-45B PC Board layout revisions
available. Choose the applicable one from the diagrams below.
1
2
JP 1
3
VIDEO
IN
2
1
JP 2
Jumper 1 - Audio Pre-Emphasis SettingJumper 2 - Not Used
1
1-2 position = Enabled
. . .
2
2-3 position = Disabled . . .
1
2
3
1
2
3
Jumper must be set to 1-2 position. . .
Pre-emphasis Jumper
Enable
2
1
Disable
3
1
1
2
2
3
3
Pre-emphasis Jumper
Position 1-2 = Stereo
Postion 2-3 = Mono
STEREO
1
2
Position 1-2 = Disable
Postion 2-3 = Enable
MONO
DISABLE
3
1
ENABLE
2
3
1
2
1
2
3
1
2
3
HE-12/HE-4 15
Instruction Manual
AMM-806 — Agile Micro Modulator
Description
The AMM-806 is an economical CATV agile audio/video modulator. It joins Blonder Tongue's family of modular headend
components and works in conjunction with the MIRC-12V rack chassis and MIPS-12C power supply. It covers channel
frequencies between 54-806 MHz. Channel selection is done by easy to use front panel DIP switches. FCC frequency offsets
per Docket 21006 are automatic via the units internal pre-programmed micro processor.
The AMM-806 accepts standard audio/video sources such as satellite receivers, television camera, video tape recorders or
demodulators. The advanced design ensures access for all level and over-modulation controls via the front panel. The audio
pre-emphasis can be disabled internally for use with a BTSC Stereo Encoder.
RF
CATV Frequency Range:
AMM-806 (CH 2-125)
Output Level - Min: 35-45 dBmV, Continuously Variable
Aural/Visual Carrier Ratio: -12 to -18 dB
Visual Carrier Frequency Tolerance
Standard Channels: ±10 kHz
FCC Aeronautical Channels (AMML Only): ±5 kHz
4.5 MHz Aural Inter Carrier Frequency: ±150 Hz (max)
Spurious Outputs: -60 dBc
C/N Ratio In Channel: 60 dB
Broadband Noise: -75 dBc
Output Impedance: 75 ohm
Output Return Loss: 10 dB
Video
Input Level: 1.0 V p-p
Frequency Response: fv-0.5 MHz to fv+4.2 MHz: ±1.0 dB
Input Impedance: 75 ohm
Input Return Loss: 18 dB min
Differential Phase: 2.0°
Differential Gain: 1.0%
Group Delay Response:
Meets FCC CATV Predistortion Requirements
for Color Operation
Audio
Input Level: 0.4 to 4.0 V p-p
Frequency Range: 30 Hz to 15 kHz, ± 0.5 dB
(Exceeds 100 kHz with Pre-emphasis Defeated)
Input Impedance: 10k ohm, Unbalanced
Distortion: 30 Hz to 15 kHz 0.6%
Setting up the AMM-806 Output Channel
Channel setting is accomplished by setting the channel switch
to the desired output channel.
The switch is divided into 2 sections, the Tens section (denoted
as "X") and the Ones section (denoted as "Y").
In each section, there are 4 switches labeled - 8,4,2,1. This
corresponds to the switch value.
Setting the switch to the right invokes the corresponding value
of the switch.
The user sets the Tens section and the Ones section to reflect
the desired channel. (i.e., For CH 116, you set 11 Tens and 6
ones for 116. For single digit channels, the Tens switch is set
to zero.)
General
Power Requirements
Voltage: +12 VDC @ 155mA
Power: +5 VDC @ 265mA
Temperature: 0° to 50° C
Mechanical
Dimensions (W x H x D):
1.15 x 3.5 x 7.5 in., 29 x 89 x 191 mm
Weight: 0.8 lbs, 0.36 kg
Connectors (Rear Panel)
Video Input: “F” Type, Female
Audio Input: RCA Phono
RF Output: “F” Type Female
Power: 3 Pin Header
Controls (Front Panel)
Channel Selection: Dip Switches
Video Level: Control
A/V Ratio: Control
Audio Level: Control
RF Output Level: Control
Indicator (Front Panel)
Power ON: LED
AMM - 806
X = 11
Y=6
8
4
2
1
8
4
X=8
Y=4
8
4
2
1
8
4
2
2
1
1
XY = ch.116
XY = ch. 84
Examples of switch settings
for various channels
16 HE-12/HE-4
Instruction Manual
MSBC - Sub-Band Block Converter
Description
The MSBC is a modular sub band block up-converter designed for use in Blonder Tongue’s HE Series rack chassis’. The unit
provides sub-band capability to MIDM-806C demodulators by block converting sub-band channels T7 to T13 to receivable
VHF channels 7 to13. The MIDM-806C A/V outputs can then be connected to a modulator such as a MICM-45C, AMCM
860 or AMM Series for a complete modular headend processing solution.
Specifications (Typical)
RF
Input Frequency Range: 5.75-47.75 MHz
(Channels T7-T13)
Output Frequency Range: 174-216 MHz
(Channels 7-13)
Recommended Input Level Range: 0 to +20 dBmV
Conversion Gain: 3 dB
Flatness: 1.5 dB P/V
LO Frequency accuracy @ 25 deg. C: +/- 500 Hz
Intermod Distortion: -60 dBc
(In band Ch. 7-13 @ 0 to + 20 dBmV input)
Input/Output Impedance: 75 Ohm
Return Loss: Input: 15 dB/ Output: 17 dB
Mechanical
Dimensions: 1.15 x 3.5 x 7.5 in.
Weight: 13.5 oz.
Temperature Range: 0 to 50 degrees C
Connectors (Rear)
Sub-Band Input: “F” Type Female
RF Output: “F” Type Female
Power: 3 Pin Header
Indicators (Front)
Power Green LED
Electrical
+12 VDC, 100 mA
1.2 Watts
Front Panel
MSBC
BLONDER
TONGUE
MSBC
Return
Channel(s)
From
Sub-Band
Diplexer
Ch.T7-T13
MICM
AMCM
AMM
MIDM
SUB-BAND
INPUT
VIDEO
OUT
VIDEO
IN
NOT
USED
AUDIO OUT
AUDIO
IN
POWER
POWER
POWER
RF IN
RF
OUT
65
POWER
INDICATOR
RF
OUTPUT
Sub-Band
Converter
Demodulator
INPUT
LO FREQ.
Channel
Frequency
T7
T8
T9
T10
T11
T12
T13
7 MHz
13 MHz
19 MHz
25 MHz
31 MHz
36 MHz
43 MHz
Modulator
Channel
168.25 MHz
168.25 MHz
168.25 MHz
168.25 MHz
168.25 MHz
168.25 MHz
168.25 MHz
7
8
9
10
11
12
13
OUTPUT
Frequency
175.25 MHz
181.25 MHz
187.25 MHz
193.25 MHz
199.25 MHz
205.25 MHz
211.25 MHz
é
Forward
Output
Channel to
Combiner
HE-12/HE-4 17
Instruction Manual
MIDM-806C Demodulators
Description
The MIDM-806C is a professional quality single channel, agile audio/video demodulator. It provides an A/V output
from any VHF, UHF or CATV channel (54-806 MHz) and is designed for use in the Blonder Tongue Modular Headend
System. The MIDM-806C demodulator and an MICM/AMCM modulator can be paired to perform off-air channel
processing or to cherry pick cable channels.
☛ Note: A MIPS-12C, (Stock #7722C) Power Supply is required for full chassis deployment.
The MIDM-806C can demodulate any single Broadcast or CATV, VHF & UHF channel in the 54 to 806 MHz frequency
range. It is ideal for off-air signal processing (audio/video processing and remodulation) and CATV cherry picking
applications.
The MIDM-806C series features rock solid, phase lock loop (PLL) synthesized frequency control. Agile frequency
selection is accomplished via front panel channel up/down buttons with a LED channel readout for easy on-the-fly
channel changes. A channel lockout mode is also provided to prevent accidental channel changes. Non-volatile
memory maintains the programmed channel selection in case of power loss. All MIDM series units are compatible
with any modulators requiring a baseband input, and can be used in any combination with the MIPS-12C power
supply in a MIRC-12V chassis.
Specifications MIDM-806C (Typical)
RF
Frequency: Range:
54-806 MHz, VHF, UHF, CATV (Std., IRC, HRC)
Input Lev­el Range: -5 to +30 dBm VHF/UHF,
+2 to +12 dBmV (CATV)
Noise Figure: 8 dB
Image Rejection: VHF 60 dB
Input Impedance: 75 ohm
Video
Output Lev­el: 1.0 V p-p
Output Impedance: 75 ohm
Audio
Output Lev­el: 1 Vp-p
Output Impedance: 600 ohm, unbalanced
General
Power Re­quire­ments - External:
+12 VDC @ 140 mA, 5 VDC @ 150 mA
Temperature Range: 0° to +50° C
Mechanical
Dimensions (W x H x D): 1.0 x 3.5 x 7.5 inches
Weight: 1.2 lbs (0.56 kg)
Connectors/Impedance
Audio Out­put: RCA Phono, fe­male
Video Output: 75 ohm “F” type, fe­male
RF In­put: 75 ohm “F” type, female
Power: Locking Header, 3 pin
Controls
Channel Selection: Push buttons
ANT/CATV: Push button
Power On/OFF: Push button
Channel Lock: Push button
Audio Level: Pot
Video Level: Pot
Indicators
Channel: 2 digit, 7 segment LED
18 HE-12/HE-4
Instruction Manual
Operating Controls & Indicators - MIDM-806C
Front Panel
All operating controls are located on, or are accessible from the front panel.
1.
2.
3. 4. BLONDER
TONGUE
Video - Adjusts video output level
Audio - Adjusts audio output level
Channel LED - Displays ANT or CATV channel number
C/ANT Mode Button - Push button to enter the mode selection menu. Use the
channel Up/Down keys to select the type of channel system required as follows:
MIDM-806C
V
Channel System
STD CATV
HRC
IRC
Broadcast U/V
5.
6. 7.
8. Power - On / Off push button
Channel Down - Increments channel by -1
Channel Up - Increments channel by +1
+100 LED - When depressed, red LED lights to indicate
channels 100 and higher
9. Lock - Depressing Lock button locks present channel or mode in memory preventing inadvertent change. A user must depress the lock button again for any channel mode/changes
A
.
5
Display
2
1
3
.
Stock no. 7740C
4
PWR
C/ANT
CH
CH
LOCK
+100
6
7
8
9
3. LED Display - Lights when in standby
.
.
LOCK Indicator
Channel Display
Rear Panel
All the connectors are located on the rear panel.
1. Video Output - Standard neg­a­tive sync video at a 0.5 to 1.5 Vp-p level.
2. Audio Output - Adjustable 0.5 to 1.5 Vp-p
3. Power - The polarized power connector accepts +12 VDC +5 VDC and ground
4. ANT/CATV - RF input from antenna or CATV drop
1
2
3
4
DC Input
+5 V
+12 V
GND
HE-12/HE-4 19
Instruction Manual
DHDP - Digital High Definition Processor Series
DHDC-UH (Upconverter-Horizontal) • Stock No. 6262A
DHDC-DV (Downconverter) • Stock No. 6264A
DHDP-V - Vertical Combo Pack • Stock No. 6266B; (Combo: 6262A + 6265A)
DHDC-UV (Upconverter) • Stock No. 6265A
DHDC-DH (Downconverter-Horizontal) • Stock No. 6261A DHDP-H - Horizontal Combo Pack • Stock No. 6263A; (Combo: 6261A + 6262A)
Description: The DHDP Series consists of 2 parts, the DHDC-D (Downconverter) and the DHDC-U (Upconverter). The units
are intended to operate as a system in order to process digital & high definition television (HDTV) signals.
Operating Controls and Indicators
Front Panel
1. 2-Digit LED Display — 2 digit LED Channel display
2. Up/Down Channel Buttons — Up & down push button controls for setting the channel.
3. Enter Button - Button used to enter the displayed channel into memory.
4. Up/Down RF Level Buttons — Up & down push button controls for RF level.
5. Up/Down Channel Buttons — Up & down push button controls for channel and mode adjustment.
6. 2-Digit LED Display — 2 digit LED display for Channel, mode and RF level information.
7. Enter Button — Button used to “enter” channel, mode or RF level selection into memory.
8. +100 Channel LED Indicator — LED illuminates to indicate CATV channels 100 to 135.
Front Panel Views
DHDC-DV
BLONDER
TONGUE
DHDC
DHDC-UV
-DV
BLONDER
TONGUE
DHDC
UP
4
RF LEVEL
DN
CHANNEL
2
UP
5
DN
1
UP
RF LEVEL
DHDC-UH
UP
CHANNEL
7
8
1
2
DHDC-DH
BLONDER
TONGUE
7
ENTER
+100
DN
4
6
ENTER
UP
DN
DIGITAL HDTV
UP CONVERTER
CH
+100
6
5
BLONDER
TONGUE
DN
3
CH
ENTER
DHDC-UH
-UV
UP
CHANNEL
8
3
ENTER
DHDC-DH
DIGITAL HDTV
DOWN CONVERTER
Rear Panel
9. IF Output - “F” Connector
10. IF Input - “F” Connector
11. Power Connector
12. RF Input - “F” Connector
13. RF Output - “F” Connector
DN
Rear Panel Views
DHDC-DV/DH
DHDC-UV/UH
IF
IF
10
9
POWER
11
POWER
12
RF
Specifications
DHDC-D Down Converter
Input Tuning Range (Off-Air 8VSB) (54-216, 470-864 MHz)
VHF: CH 2-13, UHF: CH 14-69, CH 70-78 Extended UHF
Operating Input Level Range: -20 to +25 dBmV
Installation Input Range: -15 to +20 dBmV
(any undesired channel < +25 dBmV)
Max undesired to desired channel ratio: < +25 dBc
Max adjacent to desired channel ratio: < +15 dBc
IF Output Level Digital: +30 dBmV*
Rejection of Adjacent Analog Channels: -70 dB Typical
Power Requirements:
110 mA @ +12 VDC, 370 mA @ +5 VDC
11
13
RF
DHDC-U Up Converter
IF Input Level: +30 dBmV
Output Frequency Range:
Standard CATV, IRC, HRC & Broadcast 54-864 MHz
RF Output Level Digital: +45 dBmV*
Display Error: ±2 dB
Output Level Adjustment Range: +35 to +45 dBmV
Spurious Output (54-864 MHz): -60 dBc
Phase Noise @ 10 kHz Offset: -95 dBc/Hz
Broadband Noise, Out of Channel: -70 dBc (5.5 MHz BW)
Power Requirement:
310 mA @ +12 VDC, 320 mA @ +5 VDC
* Average Measurement
20 HE-12/HE-4
Instruction Manual
Setting Up the Units
1. Place each of the units into the appropriate Blonder Tongue Micromodular chassis by sliding the unit into the
retaining rails.
a. It is recommended to physically place one Downconverter and one Upconverter next to one
another in the chassis.
2. Connect the digital or HDTV signal (8VSB format) to the RF ‘F’ connector on the DHDC-D unit.
3. Connect the IF ‘F’ connector of the DHDC-D to the IF ‘F’ connector of the DHDC-U.
4. Connect the RF ‘F’ connector of the DHDC-U to the appropriate combining device.
5. Connect each unit to the power supply using one of the power supply cables.
Programming the Unit
The DHDC-D unit is intended to accept any digital UHF or VHF signal and convert it to IF. The DHDC-U unit is intended to
accept any digital IF signal and process it to any channel from 54-864 MHz. The unit has 4 valid operating modes, STD CATV,
IRC, HRC & Broadcast UHF/VHF. It comes factory set to operate in Standard CATV Mode. If you wish to change the operating
mode skip to the Operating Mode Selection section.
Programming the DHDC-D
1. Navigate to the desired channel number by depressing the CH p UP and q DN buttons.
a. Press and hold the CH p UP or q DN arrow button for fast scrolling.
2. Press the ENTER button when you reach the desired channel setting. This will tune the downconverter input to the
corresponding frequency for this entry.
a. The LED display will blink continuously during the channel programming process and will not change the channel
until the ENTER button is depressed.
b. The unit has a special feature that alerts an operator of an inadvertent or desired change to the unit by flashing
LED readout. The LED will continue to flash for 30 seconds if the ENTER button is not depressed and if no
additional entries are made then the readout will return to the display of the previously programmed channel
entry setting.
Programming the DHDC-U
The DHDC-U unit comes factory set to operate in the Standard CATV mode. The unit has 4 valid operating modes:
STD, CATV, IRC, HRC & Broadcast UHF/VHF (see the operating mode selection section for programming information).
Programming a Channel
1. Navigate to the desired channel number by depressing the CH p UP and q DN buttons.
a. Continue past 99 for channels 100-135, the +100 LED will illuminate.
b. Press and hold the CH p UP or q DN arrow button for fast scrolling.
2. Press the ENTER button when you reach the desired channel setting. This will tune the upconverter output to the
corresponding frequency for this entry.
a. The LED display will blink continuously during the channel programming process and will not change the output
channel until the ENTER button is depressed.
b. The unit has a special feature that alerts an operator of an inadvertent or desired change to the unit by flashing
LED readout. The LED will continue to flash for 30 seconds if the ENTER button is not depressed and if no
additional entries are made then the readout will return to the display of the previously programmed channel
entry setting.
HE-12/HE-4 21
Instruction Manual
Programming the DHDC-U (Continued)
Programming RF Level
1. Depress the RF Level p UP or q DN buttons to increment or decrement the RF output level to the desired setting.
a. The unit has a specified adjustment range of +35 dBmV to +45 dBmV output. The unit software however, will
permit entries from +33 to +47 dBmV, the out of range entries of 33-34 & 46-47 dBmV are meant for usage to
correct any display error, allowing the unit to be operated in the specified range.
ATTENTION!
It is also recommended to set the output level to +45 dBmV for optimum noise
performance and externally attenuate down to a desired level.
2. P
ress ENTER when you reach the desired RF Level setting. This will tune the upconverter output to the corresponding
level entry.
a. The LED display readout will also flash continuously during the RF Level programming process. The LED display
will continue to flash for 30 seconds if ENTER is not depressed and then will return to the display of the previously
programmed channel entry setting.
Operating Mode Selection
The unit has 4 valid operating modes: STD CATV, IRC, HRC & Broadcast UHF/VHF.
The DHDC-U unit comes factory set to operate in the Standard CATV mode.
To change the operating mode
1. Simultaneously depress the RF Level p UP and q DN buttons for approximately 5 seconds.
2. The Channel LED display will switch to the operating mode selection.
3. Use the RF Level p UP and q DN buttons to select the desired mode:
a. C = STD CATV
b. H = HRC
c. I = IRC
d. U = Broadcast (VHF/UHF)
4. After selecting the desired mode depress ENTER to set the mode.
5. The unit will return to the channel display mode.
a. Programming will reflect the mode chosen – See Appendix for detailed frequency plans.
b. The operating mode will also flash continuously during the mode selection process. The LED display will
continue to flash for 30 seconds if ENTER is not depressed and then will return to the display of the previously
programmed channel & mode entry setting. NOTE: THE MODE PRESENTLY IN MEMORY WILL BE DISPLAYED
WITHOUT FLASHING DURING THE MODE SELECTION PROCESS.
Trouble Shooting
A continuously flashing Channel Display indicates an Error
Condition detected by the unit microcontroller.
Sample conditions include:
Correction Suggestion
The User should perform the following steps to correct an
Error Condition:
1. Check that the Channel Display is set to the desired
channel & reset as appropriate.
•Channel Selector Entry does not match the channel
number on which the unit is operating, the display
will flash for 30 seconds and then revert back to the
previous CH entry
3. Verify the unit output on a spectrum analyzer.
• E1 is displayed if the Input VCO is Not Locked
4. Disconnect and reconnect power to the unit.
• E2 is displayed if the Output VCO is Not Locked
If an error condition continues to be displayed, unit should be
replaced and serviced.
2. Check that the unit is set to the appropriate desired
operating mode.
22 HE-12/HE-4
Instruction Manual
Appendix A
Frequency Allocation Tables
EIA
Chan.
02
03
04
01
05
06
95
96
97
98
99
14
15
16
17
18
19
20
21
22
07
08
09
10
11
12
13
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
Standard
Video
Incremental
Video (IRC)
Harmonic
Video (HRC)
55.2500
61.2500
67.2500
NA
77.2500
83.2500
91.2500
97.2500
103.2500
109.2750
115.2750
121.2625
127.2625
133.2625
139.2500
145.2500
151.2500
157.2500
163.2500
169.2500
175.2500
181.2500
187.2500
193.2500
199.2500
205.2500
211.2500
217.2500
223.2500
229.2625
235.2625
241.2625
247.2625
253.2625
259.2625
265.2625
271.2625
277.2625
283.2625
289.2625
295.2625
301.2625
307.2625
313.2625
319.2625
325.2625
331.2750
337.2625
343.2625
349.2625
355.2625
361.2625
367.2625
373.2625
379.2625
385.2625
391.2625
397.2625
403.2500
409.2500
415.2500
421.2500
427.2500
433.2500
439.2500
445.2500
451.2500
55.2625
61.2625
67.2625
73.2625
79.2625
85.2625
91.2625
97.2625
103.2625
109.2750
115.2750
121.2625
127.2625
133.2625
139.2625
145.2625
151.2625
157.2625
163.2625
169.2625
175.2625
181.2625
187.2625
193.2625
199.2625
205.2625
211.2625
217.2625
223.2625
229.2625
235.2625
241.2625
247.2625
253.2625
259.2625
265.2625
271.2625
277.2625
283.2625
289.2625
295.2625
301.2625
307.2625
313.2625
319.2625
325.2625
331.2750
337.2625
343.2625
349.2625
355.2625
361.2625
367.2625
373.2625
379.2625
385.2625
391.2625
397.2625
403.2625
409.2625
415.2625
421.2625
427.2625
433.2625
439.2625
445.2625
451.2625
54
60
66
72
78
84
90
96
102
Cannot lock to comb
ref: refer to FCC regs
120
126
132
138
144
150
156
162
168
174
180
186
192
198
204
210
216
222
228
234
240
246
252
258
264
270
276
282
288
294
300
306
312
318
324
330
336
342
348
354
360
366
372
378
384
390
396
402
408
414
420
426
432
438
444
450
EIA
Chan.
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
NOTE: Refer to unit specifications for their respective operating ranges.
Standard
Video
Incremental
Video (IRC)
Harmonic
Video (HRC)
457.2500
463.2500
469.2500
475.2500
481.2500
487.2500
493.2500
499.2500
505.2500
511.2500
517.2500
523.2500
529.2500
535.2500
541.2500
547.2500
553.2500
559.2500
565.2500
571.2500
577.2500
583.2500
589.2500
595.2500
601.2500
607.2500
613.2500
619.2500
625.2500
631.2500
637.2500
643.2500
649.2500
655.2500
661.2500
667.2500
673.2500
679.2500
685.2500
691.2500
697.2500
703.2500
709.2500
715.2500
721.2500
727.2500
733.2500
739.2500
745.2500
751.2500
757.2500
763.2500
769.2500
775.2500
781.2500
787.2500
793.2500
799.2500
805.2500
811.2500
817.2500
823.2500
829.2500
835.2500
841.2500
847.2500
853.2500
859.2500
457.2625
463.2625
469.2625
475.2625
481.2625
487.2625
493.2625
499.2625
505.2625
511.2625
517.2625
523.2625
529.2625
535.2625
541.2625
547.2625
553.2625
559.2625
565.2625
571.2625
577.2625
583.2625
589.2625
595.2625
601.2625
607.2625
613.2625
619.2625
625.2625
631.2625
637.2625
643.2625
649.2625
655.2625
661.2625
667.2625
673.2625
679.2625
685.2625
691.2625
697.2625
703.2625
709.2625
715.2625
721.2625
727.2625
733.2625
739.2625
745.2625
751.2625
757.2625
763.2625
769.2625
775.2625
781.2625
787.2625
793.2625
799.2625
805.2625
811.2625
817.2625
823.2625
829.2625
835.2625
841.2625
847.2625
853.2625
859.2625
456
462
468
474
480
486
492
498
504
510
516
522
528
534
540
546
552
558
564
570
576
582
588
594
600
606
612
618
624
630
636
642
648
654
660
666
672
678
684
690
696
702
708
714
720
726
732
738
744
750
756
762
768
774
780
786
792
798
804
810
816
822
828
834
840
846
852
858
VHF Broadcast Channels
Channel
Video (MHz)
2
55.25
3
61.25
4
67.25
5
77.25
6
83.25
7
175.25
8
181.25
9
187.25
10
193.25
11
199.25
12
205.25
13
211.25
UHF Broadcast Channels
Channel
Video (MHz)
14
471.25
15
477.25
16
483.25
17
489.25
18
495.25
19
501.25
20
507.25
21
513.25
22
519.25
23
525.25
24
531.25
25
537.25
26
543.25
27
549.25
28
555.25
29
561.25
30
567.25
31
573.25
32
579.25
33
585.25
34
591.25
35
597.25
36
603.25
37
609.25
38
615.25
39
621.25
40
627.25
41
633.25
42
639.25
43
645.25
44
651.25
45
657.25
46
663.25
47
669.25
48
675.25
49
681.25
50
687.25
51
693.25
52
699.25
53
705.25
54
711.25
55
717.25
56
723.25
57
729.25
58
735.25
59
741.25
60
747.25
61
753.25
62
759.25
63
765.25
64
771.25
65
777.25
66
783.25
67
789.25
68
795.25
69
801.25
HE-12/HE-4 23
Instruction Manual
Appendix B
Appendix C
DHDC-D Input & DHDC-U Output
DHDC-U
Center Frequencies
Center Frequencies
VHF Broadcast Channels
Channel
(MHz)
2
57
3
63
4
69
5
79
6
85
7
177
8
183
9
189
10
195
11
201
12
207
13
213
UHF Broadcast Channels
Channel
(MHz)
14
473
15
479
16
485
17
491
18
497
19
503
20
509
21
515
22
521
23
527
24
533
25
539
26
545
27
551
28
557
29
563
30
569
31
575
32
581
33
587
34
593
35
599
36
605
37
611
38
617
39
623
40
629
41
635
42
641
43
647
44
653
45
659
46
665
47
671
48
677
49
683
50
689
51
695
52
701
53
707
54
713
55
719
56
725
57
731
58
737
59
743
60
749
61
755
62
761
63
767
64
773
65
779
66
785
67
791
68
797
69
803
EIA
Chan.
Standard
CATV
2
57
3
63
4
69
1
5
79
6
85
95
93
96
99
97
105
98
111
99
117
14
123
15
129
16
135
17
141
18
147
19
153
20
159
21
165
22
171
7
177
8
183
9
189
10
195
11
201
12
207
13
213
23
219
24
225
25
231
26
237
27
243
28
249
29
255
30
261
31
267
32
273
33
279
34
285
35
291
36
297
37
303
38
309
39
315
40
321
41
327
42
333
43
339
44
345
45
351
46
357
47
363
48
369
49
375
50
381
51
387
52
393
53
399
54
405
55
411
56
417
57
423
58
429
59
435
60
441
61
447
62
453
Incremental
(IRC)
Harmonic
(HRC)
57
63
69
75
81
87
93
99
105
111
117
123
129
135
141
147
153
159
165
171
177
183
189
195
201
207
213
219
225
231
237
243
249
255
261
267
273
279
285
291
297
303
309
315
321
327
333
339
345
351
357
363
369
375
381
387
393
399
405
411
417
423
429
435
441
447
453
55.75
61.75
67.75
73.75
79.75
85.75
91.75
97.75
103.75
109.75
115.75
121.75
127.75
133.75
139.75
145.75
151.75
157.75
163.75
169.75
175.75
181.75
187.75
193.75
199.75
205.75
211.75
217.75
223.75
229.75
235.75
241.75
247.75
253.75
259.75
265.75
271.75
277.75
283.75
289.75
295.75
301.75
307.75
313.75
319.75
325.75
331.75
337.75
343.75
349.75
355.75
361.75
367.75
373.75
379.75
385.75
391.75
397.75
403.75
409.75
415.75
421.75
427.75
433.75
439.75
445.75
451.75
EIA
Chan.
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
Standard
CATV
Incremental
(IRC)
Harmonic
(HRC)
459
465
471
477
483
489
495
501
507
513
519
525
531
537
543
549
555
561
567
573
579
585
591
597
603
609
615
621
627
633
639
645
651
657
663
669
675
681
687
693
699
705
711
717
723
729
735
741
747
753
759
765
771
777
783
789
795
801
807
813
819
825
831
837
843
849
855
861
459
465
471
477
483
489
495
501
507
513
519
525
531
537
543
549
555
561
567
573
579
585
591
597
603
609
615
621
627
633
639
645
651
657
663
669
675
681
687
693
699
705
711
717
723.
729
735
741
747
753
759
765
771
777
783
789
795
801
807
813
819
825
831
837
843
849
855
861
457.75
463.75
469.75
475.75
481.75
487.75
493.75
499.75
505.75
511.75
517.75
523.75
529.75
535.75
541.75
547.75
553.75
559.75
565.75
571.75
577.75
583.75
589.75
595.75
601.75
607.75
613.75
619.75
625.75
631.75
637.75
643.75
649.75
655.75
661.75
667.75
673.75
679.75
685.75
691.75
697.75
703.75
709.75
715.75
721.75
727.75
733.75
739.75
745.75
751.75
757.75
763.75
769.75
775.75
781.75
787.75
793.75
799.75
805.75
811.75
817.75
823.75
829.75
835.75
841.75
847.75
853.75
859.75
Limited Warranty
Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may
determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which
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duration or otherwise more limited than the BT limited warranty for Closeout Products. In such cases, BT’s warranty for Closeout Products
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This warranty does not cover damage resulting from (i) use or installation other than in strict accordance with manufacturer’s written instructions,
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