566 Brochure
MODEL 566 ORION II
TECHNICAL SPECIFICATIONS
GENERAL
Frequency Range: 500 kHz-30 MHz sub RX; 1.79-2.01, 3.49-4.07, 5.1-5.42, 6.89-7.43,
10.09-10.16, 13.99-15.01, 18.06-18.175, 20.99-21.46, 24.88-25.01, 27.99-29.71
MHz TX and main RX.
Tuning Step Size: Selectable 1, 10, 100 Hz, 1, 5, 10, 100 kHz.
Frequency Stability: ±1 ppm 0-50° C. TCXO equipped.
Antenna Impedance: 50 ohms nominal.
Antenna Connectors: 2x SO-239; 1x RCA female.
Modes: USB, LSB, AM, FM, CWUSB, CWLSB, FSK; advanced Panoramic Stereo.
IFs: IF1=9 MHz, IF2=455 kHz, IF3=14 kHz main, IF1=45 MHz, IF2=455 kHz, IF3=14 kHz
sub.
Display: 320x240 TFT color screen with CCFL backlighting. Adjustable brightness. User
selectability of several color screen layouts plus white/black, black/white “monochrome”
modes.
VFOs: Receivers operate on any two bands simultaneously; either VFO may be assigned to
transmitter using the A/B system.
Supply voltage: 13.8 Vdc nominal, 23 amps; reverse-polarity and over-voltage protection
standard.
Operating Temperature Range: 0-50° C
Dimensions (HxWxD): 5.25" x 17.0" x 18.75" (13.3 x 43.2 x 47.6 cm)
Weight: approx 20 lbs. (9.2 kg)
Construction: Aluminum chassis, steel cabinet, glass-epoxy printed-circuit boards.
PC Control Port: EIA-232 standard, DE-9F.
THE FOLLOWING SPECIFICATIONS APPLY TO BOTH RECEIVERS
Digital AGC System: Programmable threshold, hold, and decay times, fixed attack, independently programmable on each receiver.
RX Audio Equalizer: In addition to passband tuning, bass/treble boost/cut up to 6
dB/octave.
RX Audio Output Power: 2 W into 4 ohms, < 3% THD.
RX Headphone Output: Designed for 16-32 ohms headphone impedance.
Line-Level Output: Selectable .25, .5, 1 V p-p; 600 ohms.
RX Notch Filter: IF DSP, adjustable width, depth > 50 dB, notch reflected on S-meter;
multi-tone auto-notch, adjustable 9 steps.
RX Noise Reduction: IF DSP, adjustable 9 steps.
MAIN RECEIVER
SSB Sensitivity: <0.18 µV for 10 dB SINAD at 2.4 kHz BW, pre-amp on typical;
<0.5 µV for 10 dB SINAD at 2.4 kHz BW, pre-amp off typical.
AM Sensitivity: <1.50 µV for 10 dB SINAD at 6.0 kHz BW, 30% modulation @ 1 kHz,
pre-amp off.
FM Sensitivity: <2.50 µV for 12 dB SINAD at 20 kHz BW, 5-kHz deviation @ 1 kHz,
pre-amp off.
Selectivity: 590 built-in DSP filters from 100-6000 Hz, SSB, CW, AM; 20 kHz FM. Four
9-MHz IF crystal filters standard, 20 kHz, 6 kHz, 2.4 kHz, 1 kHz. Three optional, 1.8 kHz,
600 Hz, 300 Hz.
IP3: +25 dBm typical, 20-kHz spacing at BW=2.4 kHz, pre-amp off; +24 dBm typical,
5-kHz spacing, BW=500 Hz, pre-amp off. (see Figure 1 below).
IMD3 Dynamic Range: 101 dB typical, pre-amp off, 20-kHz and 5-kHz spacing.
IP2: +75 dBm typical.
LO Phase Noise: -136 dBc/Hz typical from 0.5-20 kHz. (see Figure 2 below)
Image Rejection: >70 dB.
IF Rejection: >70 dB.
Other Spurious Response Rejection: >90 dB, F>1 MHz.
Internal Spurious: None stronger than specified sensitivity.
Current Drain: 3.4 A min. audio, 3.6 A max. audio.
RIT Range: ± 10 kHz.
S-Meter: S-9=50 µV.
Recovery Time: < 20 ms.
Noise Blanker: Hardware, on/off and software, adjustable 9 steps; operate together or separately.
SUB RECEIVER
Sensitivity: 0.35 µV typical for 10 dB SINAD at 2.4 kHz BW, SSB mode.
Selectivity: 590 built-in DSP filters from 100-6000 Hz, SSB, CW, AM; 20 kHz FM.
IP3: +5 dBm typical, 20-kHz spacing.
IP2: +71 dBm typical.
Image Rejection: > 70 dB.
IF Rejection: > 70 dB.
S-meter: S-9=50 µV.
Recovery Time: < 20 ms.
Noise Blanker: Software, adjustable 9 steps.
TRANSMITTER
Power Output: ALC controlled 5-100 W.
Duty Cycle: 100% CW and SSB modes. Continuous duty requires user-supplied
cooling fan.
Microphone Input Impedance: >10 kohms at 1 kHz.
Microphone Sensitivity: 1.5 mV for 50 watts output, mic gain at 50%; internal gain
adjustment; DC available for electrets.
Speech Processor: RF compression selectable in 9 steps.
Line-Level Input: -15 dBm into 600 ohms for full output.
SSB TX Bandwidth: 3900 Hz maximum, user-adjustable settings.
AM TX Bandwidth: 6 kHz fixed, 3 kHz transmitted audio.
TX Frequency Response: 50-3900 Hz max -6 dB points, adjustable.
TX Equalizer: Up to 6 dB/octave bass/treble boost/cut.
TX Speech Monitor: Audio taken after filtering, processing.
SSB Carrier Suppression: >50 dB.
Unwanted sideband suppression: >60 dB at 1 kHz.
Harmonic and Spurious Outputs: >50 dB below 100 W; >40 dB below 5 W.
T/R Switching: PTT or VOX on SSB, AM, FM, FSK; adjustable QSK on CW; adjustable rise
and fall times on CW 3-10 ms;
CW Keyer Speed Range: 10-60 wpm; adjustable weighting, Curtis A or B.
CW Offset: Programmable 100-1200 Hz in 10 Hz steps. Sidetone pitch automatically
matches selected offset.
XIT Range: ±10 kHz
FM Deviation: ±5 kHz peak nominal.
Current Drain: 25 A max.
1185 Dolly Parton Parkway
Sevierville, TN 37862, U.S.A.
Orders: 800-833-7373
Office: (865) 453-7172
Fax: (865) 428-4483
Repair Dept.: (865) 428-0364
e-mail: [email protected]
web site: http://www.tentec.com
Fig. 1: ORION II Typical Third-Order
Intercept Performance (measured)
Fig 2: ORION II Typical LO Phase Noise
(measured)
TEN-TEC ORION II
• ORION II continues the high-performance legacy
established by the original ORION transceiver.
ORION II adds a brilliant color screen, a new
roofing filter system (with a slight increase in
receiver performance vs. ORION), new audio
routing for line level outputs and an 8-pin
microphone connector.
• Two 32-bit floating-point ADI SHARC DSP
processors and a new 32-bit control processor
using the latest generation Freescale DragonBall
Super VZ chip. Provides faster front panel
control response and accelerated remote
operation via RS-232. This new processor also
provides the horsepower for a future planned
“HIGH SPEED SWEEP” accessory. Features,
price, and availability of accessory to be
determined.
• Full dual receive capability. An amateur-bandsonly main receiver, (10 through 160 meters)
utilizes selectable crystal roofing and IF-DSP
bandwidth filtering. The sub receiver uses a
single crystal roofing filter and IF-DSP bandwidth
filtering and is general coverage to 30 MHz.
Both receivers can be used simultaneously on
any frequency, with no compromise in
performance. The two receivers can share a
single antenna or each can be fed from a
separate antenna. Bandwidth, AGC, PBT, Hi-Lo
Cut, AF and RF gain, attenuator, DSP noise
reduction and notch are all selectable
independently on each receiver.
• The main receiver accommodates up to seven
crystal roofing filters in the first I-F stage. Four
of the seven filters at 20, 6, 2.4, and 1 kHz are
standard. Optional filters for 1.8 kHz, 600 Hz,
and 300 Hz can be added. This all-new ORION II
roofing filter system adds a subtle dynamic
range increase over the original ORION
transceiver. The roofing filters can be cascaded
with any of 590 selectable IF-DSP bandwidth
filters (100 Hz–6 kHz in 10 Hz steps). The sub
receiver has its own set of 590 bandwidth
filters that are selectable independent of the
main receiver filtering.
• Very high RX intercept points, superior close-in
dynamic range and an industry-best extremely
low phase-noise synthesizer make ORION II’s
main receiver performance unmatched by any
other HF transceiver.
• Programmable AGC response time for each
receiver. FAST, MED, and SLOW are adjustable,
and the new programmable mode is
groundbreaking. Users may build their own
personal AGC characteristic by selecting
threshold, hang and decay rates. More than one
million possible AGC combinations can be
selected. Each receiver retains its own
programmable setting.
• True diversity reception. Both receivers can be
simultaneously fed from two separate antennas
on the same frequency and controlled using a
single VFO tuning knob. Superior low-band DXing
capability using two separate receive antennas,
on two receivers, and transmitting on a third TX
antenna. Three antenna connections are
provided: Two SO-239 connectors for transceive
or receive antennas, a third via phono connector
for RX-only use.
• Continuous real-time spectrum display allows
monitoring of band activity. Five selectable
sweep ranges allow user-definable limits to the
amount of spectrum being monitored.
• Unlike “load-trimmers” used by competitors in
their transceivers, ORION II’s optional heavyduty L-network automatic antenna turner
matches 6 to 800 ohms impedance—up to
10:1 SWR!
• Superb SSB audio is yours at a touch of the
AUDIO button. Audio equalization is provided in
both transmit and receive. The transmit
response can be adjusted to have more bass or
more treble. Separately, receiver audio can be
EQed for bass and treble response. 18
selectable SSB transmit bandwidths to a
maximum of 3.9 kHz are provided.
• Ten-Tec’s Panoramic Stereo receive feature.
Listening with stereo headphones, you can turn
PS receive on and hear signals in stereo. As you
tune across the band, signals move from one
side through center to the other side in your
headphones. Better than so-called “binaural”
reception, this unique Ten-Tec feature can be
used in SSB modes as well as CW. You’ve got
to hear it to believe it!
• Nine adaptive DSP noise reduction filters let you
select the right amount of NR for elimination of
broadband hiss, noise, etc., plus DSP automatic
notch for auto filtering of interfering carriers in
SSB modes. Manual notch filter is also provided
with greater than 60 dB of cut and with
adjustable width.
• Dual noise blankers. Both a traditional-style
analog and an IF-DSP noise blanker with a 9
stage selection control are provided for
suppression of line noise and other pulse-type
EMI.
• Mixing architecture for the analog stages has
been rearranged to provide self-correction for
frequency stability. All local oscillators are
locked to a 1 PPM master TCXO. Drift
correction circuitry assures ORION II stays
within 1 PPM across full temperature range
0º–50º C.
• Variable (programmable) line level outputs on
rear panel completely independent of front panel
controls.
• ORION II is Flash-ROM updatable. To obtain the
latest version of the ORION II, simply visit our
firmware download website at
www.rfsquared.com and download the software.
Connect ORION II to your computer via a serial
port cable, and send the software to the radio.
It’s that easy!
HOW IS ORION II DIFFERENT
FROM OTHER HF RECEIVERS?
ORION II uses both crystal roofing filters and IF-DSP bandwidth filtering as part of the main receiver. The usual pitfall for top-notch performance in a
modern HF receiver is the use of a 15- to 20-kHz wide roofing filter at the 1st I-F stage. This wide filter will allow unwanted signals outside of your receiver’s
passband to compromise receiver performance. By using crystal filters as selectable roofing filters at the 1st I-F, undesirable signals are kept out of the
receiver chain and do not compromise close-in receiver performance.
ORION II is the only HF transceiver to utilize mode-appropriate roofing filters. A roofing filter of 20 or 6 or even 4 kHz is of limited utility because they are
wide enough to continue to allow loud signals inside the filter to compromise overall receiver performance. These filters should be used for wide
communications modes like AM and FM only, or for a more well-rounded SSB receive audio. For ultimate performance in SSB and CW modes, the narrower the
roofing filter the better! Only ORION II allows you to take roofing filters down to very narrow bandwidths. Filters at 2.4, 1,8, and 1 kHz and 600 and 300 Hz
assure that NO unwanted signal will EVER compromise sensitivity and dynamic range.
Any signal that appears inside the roofing filter – even if you do not hear it in your receiver passband – will have a negative impact on receiver
performance. Loud signals inside a roofing filter lead to a loss of dynamic range and receiver sensitivity. Consult any ARRL product review from the past four
years and look at the difference in receiver performance numbers for 20-kHz spacing and 5-kHz spacing two-tone dynamic range and third-order intercept. The
5-kHz spacing numbers are always significantly worse than the 20-kHz numbers for our competitors transceivers – this is because of the presence of the loud
test signals inside their wide roofing filters. Imagine how much worse it is if you have several loud signals within 15 kHz rather than just two used for testing!
The optimum receiver set up is to use high-rejection, very narrow crystal filtering up front, and brick-wall DSP filtering at the end of the chain at the 3rd I-F. No
receiver system can top this! There are seven crystal roofing filter positions in ORION II; four of the seven roofing filters are standard, three are optional.
ORION II’s roofing filters are not to be confused with traditional crystal bandwidth filters – for bandwidth filtering, ORION II has 590 built in DSP filters from a
minimum of 100 Hz to a maximum of 6 kHz. What is the result? Receiver performance that is better than any other transceiver on the market.
ORION II operations are displayed on an easy-to-read color screen. User-assignable
functions are controlled by buttons surrounding the screen and by adjusting the bank of 6
knobs on the upper right side of the radio. The screen is a very bright, TFT color display
with CCFL backlighting. It has ten user-selectable color schemes, eight using full color and
two black/white and white/black mono reversible.
A matrix of 12 buttons on the ORION left side allows maximum operator flexibility. Assign
either receiver to either VFO, or both to one VFO. Antennas are assigned by receiver; you
can have both receivers on one antenna or route them to separate antennas. For maximum
“DX-ability”, connect a transmit antenna to ANT 1, a Beverage to ANT 2 and a second
Beverage to RX ANT. Put separate receivers on each Beverage, and transmit on the third
antenna. A menu option even allows the radio to select the desired antenna automatically
based on band selection. Analog meter for main receiver signal strength and power output
is provided.
The 6-knob control panel, bandchange keypad and tuning knobs were laid out with operator
ergonomics in mind. Two large main tuning knobs for ease of use. Critical transceiver
functions like AF gain, RIT, frequency entry, BW and PBT are all available with a minimum
amount of hand or arm motion from main tuning knobs.
ORION II rear panel. Two SO-239 connectors for transceive antennas, phono connector for
RX ANT. Two linear amplifier keying loops are provided; for non-QSK amps, two PTT AMP
KEY lines are provided. Dual band data outputs, one per VFO. 9-pin serial data connector
for radio control via RS-232 and downloadable Flash-ROM updates. PC sound card
connection for digital modes like PSK31 is done by connecting appropriate cables to the
AUX I/O jack. No interface between rig and computer is necessary.
TEN-TEC ORION II
• ORION II continues the high-performance legacy
established by the original ORION transceiver.
ORION II adds a brilliant color screen, a new
roofing filter system (with a slight increase in
receiver performance vs. ORION), new audio
routing for line level outputs and an 8-pin
microphone connector.
• Two 32-bit floating-point ADI SHARC DSP
processors and a new 32-bit control processor
using the latest generation Freescale DragonBall
Super VZ chip. Provides faster front panel
control response and accelerated remote
operation via RS-232. This new processor also
provides the horsepower for a future planned
“HIGH SPEED SWEEP” accessory. Features,
price, and availability of accessory to be
determined.
• Full dual receive capability. An amateur-bandsonly main receiver, (10 through 160 meters)
utilizes selectable crystal roofing and IF-DSP
bandwidth filtering. The sub receiver uses a
single crystal roofing filter and IF-DSP bandwidth
filtering and is general coverage to 30 MHz.
Both receivers can be used simultaneously on
any frequency, with no compromise in
performance. The two receivers can share a
single antenna or each can be fed from a
separate antenna. Bandwidth, AGC, PBT, Hi-Lo
Cut, AF and RF gain, attenuator, DSP noise
reduction and notch are all selectable
independently on each receiver.
• The main receiver accommodates up to seven
crystal roofing filters in the first I-F stage. Four
of the seven filters at 20, 6, 2.4, and 1 kHz are
standard. Optional filters for 1.8 kHz, 600 Hz,
and 300 Hz can be added. This all-new ORION II
roofing filter system adds a subtle dynamic
range increase over the original ORION
transceiver. The roofing filters can be cascaded
with any of 590 selectable IF-DSP bandwidth
filters (100 Hz–6 kHz in 10 Hz steps). The sub
receiver has its own set of 590 bandwidth
filters that are selectable independent of the
main receiver filtering.
• Very high RX intercept points, superior close-in
dynamic range and an industry-best extremely
low phase-noise synthesizer make ORION II’s
main receiver performance unmatched by any
other HF transceiver.
• Programmable AGC response time for each
receiver. FAST, MED, and SLOW are adjustable,
and the new programmable mode is
groundbreaking. Users may build their own
personal AGC characteristic by selecting
threshold, hang and decay rates. More than one
million possible AGC combinations can be
selected. Each receiver retains its own
programmable setting.
• True diversity reception. Both receivers can be
simultaneously fed from two separate antennas
on the same frequency and controlled using a
single VFO tuning knob. Superior low-band DXing
capability using two separate receive antennas,
on two receivers, and transmitting on a third TX
antenna. Three antenna connections are
provided: Two SO-239 connectors for transceive
or receive antennas, a third via phono connector
for RX-only use.
• Continuous real-time spectrum display allows
monitoring of band activity. Five selectable
sweep ranges allow user-definable limits to the
amount of spectrum being monitored.
• Unlike “load-trimmers” used by competitors in
their transceivers, ORION II’s optional heavyduty L-network automatic antenna turner
matches 6 to 800 ohms impedance—up to
10:1 SWR!
• Superb SSB audio is yours at a touch of the
AUDIO button. Audio equalization is provided in
both transmit and receive. The transmit
response can be adjusted to have more bass or
more treble. Separately, receiver audio can be
EQed for bass and treble response. 18
selectable SSB transmit bandwidths to a
maximum of 3.9 kHz are provided.
• Ten-Tec’s Panoramic Stereo receive feature.
Listening with stereo headphones, you can turn
PS receive on and hear signals in stereo. As you
tune across the band, signals move from one
side through center to the other side in your
headphones. Better than so-called “binaural”
reception, this unique Ten-Tec feature can be
used in SSB modes as well as CW. You’ve got
to hear it to believe it!
• Nine adaptive DSP noise reduction filters let you
select the right amount of NR for elimination of
broadband hiss, noise, etc., plus DSP automatic
notch for auto filtering of interfering carriers in
SSB modes. Manual notch filter is also provided
with greater than 60 dB of cut and with
adjustable width.
• Dual noise blankers. Both a traditional-style
analog and an IF-DSP noise blanker with a 9
stage selection control are provided for
suppression of line noise and other pulse-type
EMI.
• Mixing architecture for the analog stages has
been rearranged to provide self-correction for
frequency stability. All local oscillators are
locked to a 1 PPM master TCXO. Drift
correction circuitry assures ORION II stays
within 1 PPM across full temperature range
0º–50º C.
• Variable (programmable) line level outputs on
rear panel completely independent of front panel
controls.
• ORION II is Flash-ROM updatable. To obtain the
latest version of the ORION II, simply visit our
firmware download website at
www.rfsquared.com and download the software.
Connect ORION II to your computer via a serial
port cable, and send the software to the radio.
It’s that easy!
HOW IS ORION II DIFFERENT
FROM OTHER HF RECEIVERS?
ORION II uses both crystal roofing filters and IF-DSP bandwidth filtering as part of the main receiver. The usual pitfall for top-notch performance in a
modern HF receiver is the use of a 15- to 20-kHz wide roofing filter at the 1st I-F stage. This wide filter will allow unwanted signals outside of your receiver’s
passband to compromise receiver performance. By using crystal filters as selectable roofing filters at the 1st I-F, undesirable signals are kept out of the
receiver chain and do not compromise close-in receiver performance.
ORION II is the only HF transceiver to utilize mode-appropriate roofing filters. A roofing filter of 20 or 6 or even 4 kHz is of limited utility because they are
wide enough to continue to allow loud signals inside the filter to compromise overall receiver performance. These filters should be used for wide
communications modes like AM and FM only, or for a more well-rounded SSB receive audio. For ultimate performance in SSB and CW modes, the narrower the
roofing filter the better! Only ORION II allows you to take roofing filters down to very narrow bandwidths. Filters at 2.4, 1,8, and 1 kHz and 600 and 300 Hz
assure that NO unwanted signal will EVER compromise sensitivity and dynamic range.
Any signal that appears inside the roofing filter – even if you do not hear it in your receiver passband – will have a negative impact on receiver
performance. Loud signals inside a roofing filter lead to a loss of dynamic range and receiver sensitivity. Consult any ARRL product review from the past four
years and look at the difference in receiver performance numbers for 20-kHz spacing and 5-kHz spacing two-tone dynamic range and third-order intercept. The
5-kHz spacing numbers are always significantly worse than the 20-kHz numbers for our competitors transceivers – this is because of the presence of the loud
test signals inside their wide roofing filters. Imagine how much worse it is if you have several loud signals within 15 kHz rather than just two used for testing!
The optimum receiver set up is to use high-rejection, very narrow crystal filtering up front, and brick-wall DSP filtering at the end of the chain at the 3rd I-F. No
receiver system can top this! There are seven crystal roofing filter positions in ORION II; four of the seven roofing filters are standard, three are optional.
ORION II’s roofing filters are not to be confused with traditional crystal bandwidth filters – for bandwidth filtering, ORION II has 590 built in DSP filters from a
minimum of 100 Hz to a maximum of 6 kHz. What is the result? Receiver performance that is better than any other transceiver on the market.
ORION II operations are displayed on an easy-to-read color screen. User-assignable
functions are controlled by buttons surrounding the screen and by adjusting the bank of 6
knobs on the upper right side of the radio. The screen is a very bright, TFT color display
with CCFL backlighting. It has ten user-selectable color schemes, eight using full color and
two black/white and white/black mono reversible.
A matrix of 12 buttons on the ORION left side allows maximum operator flexibility. Assign
either receiver to either VFO, or both to one VFO. Antennas are assigned by receiver; you
can have both receivers on one antenna or route them to separate antennas. For maximum
“DX-ability”, connect a transmit antenna to ANT 1, a Beverage to ANT 2 and a second
Beverage to RX ANT. Put separate receivers on each Beverage, and transmit on the third
antenna. A menu option even allows the radio to select the desired antenna automatically
based on band selection. Analog meter for main receiver signal strength and power output
is provided.
The 6-knob control panel, bandchange keypad and tuning knobs were laid out with operator
ergonomics in mind. Two large main tuning knobs for ease of use. Critical transceiver
functions like AF gain, RIT, frequency entry, BW and PBT are all available with a minimum
amount of hand or arm motion from main tuning knobs.
ORION II rear panel. Two SO-239 connectors for transceive antennas, phono connector for
RX ANT. Two linear amplifier keying loops are provided; for non-QSK amps, two PTT AMP
KEY lines are provided. Dual band data outputs, one per VFO. 9-pin serial data connector
for radio control via RS-232 and downloadable Flash-ROM updates. PC sound card
connection for digital modes like PSK31 is done by connecting appropriate cables to the
AUX I/O jack. No interface between rig and computer is necessary.
MODEL 566 ORION II
TECHNICAL SPECIFICATIONS
GENERAL
Frequency Range: 500 kHz-30 MHz sub RX; 1.79-2.01, 3.49-4.07, 5.1-5.42, 6.89-7.43,
10.09-10.16, 13.99-15.01, 18.06-18.175, 20.99-21.46, 24.88-25.01, 27.99-29.71
MHz TX and main RX.
Tuning Step Size: Selectable 1, 10, 100 Hz, 1, 5, 10, 100 kHz.
Frequency Stability: ±1 ppm 0-50° C. TCXO equipped.
Antenna Impedance: 50 ohms nominal.
Antenna Connectors: 2x SO-239; 1x RCA female.
Modes: USB, LSB, AM, FM, CWUSB, CWLSB, FSK; advanced Panoramic Stereo.
IFs: IF1=9 MHz, IF2=455 kHz, IF3=14 kHz main, IF1=45 MHz, IF2=455 kHz, IF3=14 kHz
sub.
Display: 320x240 TFT color screen with CCFL backlighting. Adjustable brightness. User
selectability of several color screen layouts plus white/black, black/white “monochrome”
modes.
VFOs: Receivers operate on any two bands simultaneously; either VFO may be assigned to
transmitter using the A/B system.
Supply voltage: 13.8 Vdc nominal, 23 amps; reverse-polarity and over-voltage protection
standard.
Operating Temperature Range: 0-50° C
Dimensions (HxWxD): 5.25" x 17.0" x 18.75" (13.3 x 43.2 x 47.6 cm)
Weight: approx 20 lbs. (9.2 kg)
Construction: Aluminum chassis, steel cabinet, glass-epoxy printed-circuit boards.
PC Control Port: EIA-232 standard, DE-9F.
THE FOLLOWING SPECIFICATIONS APPLY TO BOTH RECEIVERS
Digital AGC System: Programmable threshold, hold, and decay times, fixed attack, independently programmable on each receiver.
RX Audio Equalizer: In addition to passband tuning, bass/treble boost/cut up to 6
dB/octave.
RX Audio Output Power: 2 W into 4 ohms, < 3% THD.
RX Headphone Output: Designed for 16-32 ohms headphone impedance.
Line-Level Output: Selectable .25, .5, 1 V p-p; 600 ohms.
RX Notch Filter: IF DSP, adjustable width, depth > 50 dB, notch reflected on S-meter;
multi-tone auto-notch, adjustable 9 steps.
RX Noise Reduction: IF DSP, adjustable 9 steps.
MAIN RECEIVER
SSB Sensitivity: <0.18 µV for 10 dB SINAD at 2.4 kHz BW, pre-amp on typical;
<0.5 µV for 10 dB SINAD at 2.4 kHz BW, pre-amp off typical.
AM Sensitivity: <1.50 µV for 10 dB SINAD at 6.0 kHz BW, 30% modulation @ 1 kHz,
pre-amp off.
FM Sensitivity: <2.50 µV for 12 dB SINAD at 20 kHz BW, 5-kHz deviation @ 1 kHz,
pre-amp off.
Selectivity: 590 built-in DSP filters from 100-6000 Hz, SSB, CW, AM; 20 kHz FM. Four
9-MHz IF crystal filters standard, 20 kHz, 6 kHz, 2.4 kHz, 1 kHz. Three optional, 1.8 kHz,
600 Hz, 300 Hz.
IP3: +25 dBm typical, 20-kHz spacing at BW=2.4 kHz, pre-amp off; +24 dBm typical,
5-kHz spacing, BW=500 Hz, pre-amp off. (see Figure 1 below).
IMD3 Dynamic Range: 101 dB typical, pre-amp off, 20-kHz and 5-kHz spacing.
IP2: +75 dBm typical.
LO Phase Noise: -136 dBc/Hz typical from 0.5-20 kHz. (see Figure 2 below)
Image Rejection: >70 dB.
IF Rejection: >70 dB.
Other Spurious Response Rejection: >90 dB, F>1 MHz.
Internal Spurious: None stronger than specified sensitivity.
Current Drain: 3.4 A min. audio, 3.6 A max. audio.
RIT Range: ± 10 kHz.
S-Meter: S-9=50 µV.
Recovery Time: < 20 ms.
Noise Blanker: Hardware, on/off and software, adjustable 9 steps; operate together or separately.
SUB RECEIVER
Sensitivity: 0.35 µV typical for 10 dB SINAD at 2.4 kHz BW, SSB mode.
Selectivity: 590 built-in DSP filters from 100-6000 Hz, SSB, CW, AM; 20 kHz FM.
IP3: +5 dBm typical, 20-kHz spacing.
IP2: +71 dBm typical.
Image Rejection: > 70 dB.
IF Rejection: > 70 dB.
S-meter: S-9=50 µV.
Recovery Time: < 20 ms.
Noise Blanker: Software, adjustable 9 steps.
TRANSMITTER
Power Output: ALC controlled 5-100 W.
Duty Cycle: 100% CW and SSB modes. Continuous duty requires user-supplied
cooling fan.
Microphone Input Impedance: >10 kohms at 1 kHz.
Microphone Sensitivity: 1.5 mV for 50 watts output, mic gain at 50%; internal gain
adjustment; DC available for electrets.
Speech Processor: RF compression selectable in 9 steps.
Line-Level Input: -15 dBm into 600 ohms for full output.
SSB TX Bandwidth: 3900 Hz maximum, user-adjustable settings.
AM TX Bandwidth: 6 kHz fixed, 3 kHz transmitted audio.
TX Frequency Response: 50-3900 Hz max -6 dB points, adjustable.
TX Equalizer: Up to 6 dB/octave bass/treble boost/cut.
TX Speech Monitor: Audio taken after filtering, processing.
SSB Carrier Suppression: >50 dB.
Unwanted sideband suppression: >60 dB at 1 kHz.
Harmonic and Spurious Outputs: >50 dB below 100 W; >40 dB below 5 W.
T/R Switching: PTT or VOX on SSB, AM, FM, FSK; adjustable QSK on CW; adjustable rise
and fall times on CW 3-10 ms;
CW Keyer Speed Range: 10-60 wpm; adjustable weighting, Curtis A or B.
CW Offset: Programmable 100-1200 Hz in 10 Hz steps. Sidetone pitch automatically
matches selected offset.
XIT Range: ±10 kHz
FM Deviation: ±5 kHz peak nominal.
Current Drain: 25 A max.
1185 Dolly Parton Parkway
Sevierville, TN 37862, U.S.A.
Orders: 800-833-7373
Office: (865) 453-7172
Fax: (865) 428-4483
Repair Dept.: (865) 428-0364
e-mail: [email protected]
web site: http://www.tentec.com
Fig. 1: ORION II Typical Third-Order
Intercept Performance (measured)
Fig 2: ORION II Typical LO Phase Noise
(measured)
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