HPDA-100RM-A SPECTRADYNAMICS, INC
SPECTRADYNAMICS, INC
HPDA-100RM-A
HIGH PERFORMANCE DISTRIBUTION AMPLIFIER
OPERATING MANUAL
SPECTRADYNAMICS, INC • 1849 Cherry St. Unit 2. • Louisville, CO 80027
Phone: (303) 665-1852 • Fax: (303) 604-6088
www.spectradynamics.com
HPDA-100RM-A High Performance Distribution Amplifier Operating Manual
Copyright © 2016 SpectraDynamics, Inc. All rights reserved.
HPDA-100RM-A:R00-2016/MD
Contents
1.0
Introduction …………………………………………………………………….... 1
2.0
Safety and preparation for use ………………………………..……….…….. 2
2.1 Electrical ……………….…………………………………………….……. 2
2.2 Instrument ……..…………….………………………………….….…….. 3
3.0
Front panel description …….…………………………………………….…… 4
4.0
Back panel description ………………………………………………….……. 5
5.0
Installation ……………………………………………………………….…….. 6
6.0
Operation ………………………………………………………………………
7
7.0
Troubleshooting ……………………………………………………………….
8
8.0
Specifications ………………………………………………………………….
9
9.0
Warranty and service …………………………………………………………
10
1.0 Introduction
The HPDA-100RM-A is a High Performance Distribution and Isolation Amplifier with
performance exceeding that required to distribute state-of-the-art atomic frequency
standards.
The HPDA-100RM-A contains one signal distribution module. This module provides five
isolated outputs and an output level monitor LED located on the front panel. All the output
power levels are monitored and compared to a preset threshold of +7dBm. If the signal
level on any output drops below this threshold, the monitor LED will turn off indicating a
fault condition.
Other HPDA-100RM Options:
Product Name
No. of Inputs
No. of Outputs
AC Operation
HPDA-100i
1
5
HPDA-100RM-A
1
5
√
HPDA-100RM-B
3
15
√
HPDA-100RM-B1
1
10
√
HPDA-100RM-B2
2
10
√
HPDA-100RM-C
3
15
√
HPDA-100RM-D
3
15
DC Operation
√
√
√
Page 1
2.0 Safety and Preparation for Use
The HPDA-100RM-A was designed for indoor use only and is not intended for operation
outdoors or in a wet environment. The instrument may be mounted in a standard 19-inch
instrumentation rack or may be used on a laboratory bench.
Inspect the instrument and power cords for damage before first use.
2.1 Electrical safety and preparation for use
Voltages capable of causing injury or death are present in this instrument. Use extreme
caution whenever the instrument cover is removed.
Line Voltage
This instrument is designed to operate with a 100 to 240 VAC, 47 to 63 Hz power source.
Fuse
A 2.0 Ampere 250V 5X10mm slow-blow fuse is used for 100-240 VAC operation.
Only replace fuse with the same type and specifications.
AC Power
The instrument has a detachable three wire power cord for connection to a grounded AC
power source. The enclosure of the unit is directly connected to the outlet ground to
protect against electrical shock. Always use an outlet with a protective ground and do not
disable this safety mechanism. Detaching the AC power cord is the only option of
disconnecting the unit from the AC mains supply. Make sure you have access to the rear
panel or provide an external accessible AC disconnect means for the HPDA-100RM-A.
Page 2
2.0 Safety and Preparation for Use
2.2 Instrument safety and preparation for use
The HPDA-100RM-A is designed to distribute RF signals with a frequency of 80 to 120
MHz . Input and output levels below +7 dBm will trigger a fault condition which can be
monitored from the front panel. The recommended level for the RF input signal is +13
dBm +/- 2 dB .
Input signals must be kept below +20 dBm as greater power levels will damage the unit
and void all warranties.
The HPDA-100RM-A RF outputs are DC isolated from the chassis ground to prevent
ground loops. These outputs are rated to a maximum of 50 V.
Absolute Maximum Ratings
Input RF Power
+20dBm Maximum
Reverse RF Power
+20dBm Maximum
Voltage at the RF Input
50 V Maximum
Voltage at the RF Output
50 V Maximum
Page 3
3.0 Front Panel
AC Power LED
The AC Power LED turns on when AC power is applied to unit.
Monitor LED
The monitor LED will be on if all RF outputs of the corresponding module are greater than
+7 dBm.
RF signal levels less than +7 dBm will trigger a fault condition and the Monitor LED will not
light up. However the HPDA-100RM-A will still provide five buffered copies of the RF input
signal.
Page 4
4.0 Back Panel
AC Power
The HPDA-100RM-A is configured to operate on 100 to 240 VAC.
INPUT
A RF Signal within the range of 80 MHz to 120 MHz may be connected to the SMA
connector labeled INPUT.
OUTPUTS
Five buffered copies of the RF input signal will be available at the SMA connectors labeled
OUTPUTS. Any HPDA-100RM-A output may be used to drive the input of another
distribution module.
Page 5
5.0 Installation
5.1 Connecting power
The HPDA-100RM-A ships with a standard North American or European IEC power cord.
The instrument may be mounted in a standard 19-inch instrument rack or may be operated
on a laboratory bench.
Locate the AC POWER entry module on the rear of the enclosure and connect the power
cord.
Page 6
6.0 Operation
Plug the power cord into an appropriate AC power outlet.
Once AC power is supplied to the HPDA-100RM-A, the LED on the front panel labeled AC
will turn on.
The HPDA-100RM-A is designed to distribute signals from 80 MHz to 120 MHz. The RF
input has a 50-ohm input impedance. Provide a signal within the mentioned frequency
range to the SMA connector on the back panel labeled INPUT. If the RF signal has a
power lever greater than +7dBm, the monitor LED located on the front panel will light up.
Five buffered copies of the RF signal provided will be available on the SMA connectors
located on the back panel labeled OUTPUTS. All outputs are AC coupled and the grounds
are DC isolated to reduce the effect of ground loops. Make sure that the amplifier ground
does not float to a potential greater than 50 VDC from the chassis ground. An output
ground potential greater than 50 VDC will damage the amplifier and could cause injury or
death to personnel.
Page 7
7.0 Troubleshooting
Do not attempt to service or adjust the instrument unless another person, capable of
providing first aid or resuscitation, is present. If there are problems that cannot be
resolved by the troubleshooting steps below please contact technical support.
Technical Support
Tel: +1 (303) 665-1852 , Fax: +1 (303) 604-6088
support@spectradynamics.com, www.spectradynamics.com
AC Power LED does not turn on.
Disconnect the power cord and remove the top cover. Check the main AC power fuse and
power cord. If the fuse is blown replace with same type and rating. Please contact SDI if
the fuse blows again or if the event that caused the fuse to blow is not known.
Monitor LED is off.
Check to see if the RF signal provided to the instrument is greater than +7 dBm.
Check to see if a signal is present at all outputs of the signal distribution module.
The Monitor LED will remain off with a power lever under +7dBm, but will still provide five
copies of the RF input signal. If the instrument is providing the copies of the input signal
you may continue using the HPDA-100RM-A.
If the power level of the RF signal provided is greater than +7dBm and the Monitor LED
remains off, the instrument will have to be returned for repair.
Page 8
8.0 Specifications
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
15
16
-
dBm
Input Power Level
1 dB compression
Bandwidth
+/- 1 dB
-
80-120
-
MHz
Gain
@ 100 MHz
-
0.2
0.5
dB
Impedance
Input
-
50
-
Ohms
Output
-
50
-
Input (S11) 100MHz
-
-22
-20
Output (S22) 100MHz
-
-30
-25
+13 dBm
-
-43
-40
dBc
+17 dBm
-
-40
Output to output
95
100
-
dB
Output to input
105
110
-
10 Hz
-
-158
-155
100 Hz
-
-165
-162
1 kHz
-
-171
-168
10 kHz
-
-174
-171
Return Loss
Distortion
Isolation
Phase Noise
dB
dBc/Hz
*All tests done at 100 MHz and +13 dBm input unless otherwise specified.
Rackmount chassis
Storage temperature
Operation environment
Humidity
1U H, 19“ W, 14” D
-10 to +75 ºC
0 to +50 ºC
5% to 95% Non-condensing
Page 9
9.0 Warranty and Service
The HPDA-100RM-A is warranted to be free of defects under normal operating conditions,
as specified, for one year from date of original shipment from SpectraDynamics, Inc. (SDI).
SDI’s obligation and liability under this warranty is expressly limited to repairing or
replacing, at SDI’s option, any product not meeting the said specifications. This warranty
shall be in effect for one (1) year from the date a HPDA-100RM-A is sold by SDI. SDI
makes no other warranty, express or implied, and makes no warranty of the fitness for any
particular purpose. SDI’s obligation under this warranty shall not include any transportation
charges or costs of installation or any liability for direct, indirect, or consequential
damages or delay. Any improper use, operation beyond capacity, substitution of parts not
approved by SDI, or any alteration or repair by others in such manner as in SDI’s
reasonable judgement affects the product materially and adversely shall void this warranty.
No employee or representative of SDI is authorized to change this warranty in any way or
grant any other warranty.
Service
Do not attempt to service or adjust the instrument unless another person, capable of
providing first aid or resuscitation, is present. Please remember that any alteration or repair
may void the warranty. Contact SDI with any questions or to request an RMA if a repair is
needed.
SpectraDynamics, Inc.
1849 Cherry Street Unit 2.
Louisville, CO 80027
USA
Tel: (303) 665-1852
Fax: (303) 604-6088
support@spectradynamics.com
www.spectradynamics.com
Page 10
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