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Omni D Model 546

Specifications

Frequency Coverage: 1.8 - 2.3, 3.5 - 4.0, 7.0 - 7.5, 10.0 - 10.5, 14.0 - 14.5, 21.0 - 21.5, 28.0 - 28.5, 28.5 - 29.0, 29.0 - 29.5, 29.5 - 30.0 MHz transceive. (VFO provides approximately 40 kHz overrun on each band edge.).
VFO Stability: Less than 15 Hz change per F^o averaged over a 40^o change from 70^o to 110^o F after 30 minutes warmup. Less than 10 Hz change from 105 to 125 Vac line voltage when using a TEN-TEC power supply.
Tuning Rate: Vernier, 18 kHz per revolution, typical.
Readout: Six digit, 0.43" LED numerals. Least significant digit indicating 100 Hz green, all others red.
Accuracy: +/- 100 Hz.
Semi-Conductors: 1 LSI, 20 IC's, 47 transistors, 29 diodes, 21 pin diodes, 6 LED readouts.
PC Boards: 14 plug-in, 13 integral.
Construction: Rigid aluminum chassis. Dark painted aluminum front and rear panels, black vinyl covered aluminum top and bottom. satin etched and extruded panel trim. Snap-up wire front bail.
Power Required: 12-14 Vdc, 850 mA receive, 18.5 A max transmit.
Dimensions: HWD 5.50" x 14.25" x 14".
Weight: 14.5 lbs.

Sensitivity: Tailored from 2.0 uV on 1.8 MHz band to 0.3 uV on 28 MHz band for 10 dB S+N/N.
Selectivity: 8 pole ladder filter. 2.4 kHz bandwidth, 1.7 to 1 shape factor at 6/60 dB. With Model 217 installed: 500 Hz bandwidth, 1.9 to 1 shape factor. With Model 218 installed: 1800 Hz bandwidth, 1.8 to 1 shape factor. With Model 219 installed: 250 Hz bandwidth, 2.0 to 1 shape factor.
Notch Filter: Greater than 50 dB notch tunable between 200 Hz and 3.5 kHz.
CW Spot: With 750 Hz reference tone.
I-F Frequencies: 9 MHz and 6.3 MHz.
Antenna Input: Low impedance, unbalanced.
Audio Output: 1 watt @ 8 ohms with less than 2% distortion. Built-in speaker.
Spurious Responses: All below equivalent 10 dB S+N/N signal except 1.838 MHz (less than 15 dB S+N/N), 21.300 MHz (less than 20 dB S+N/N), and 28.980 MHz (which can be eliminated by using low end 29.0 - 29.5 MHz band segment).
Noise Blanker: Built-in, adjustable blanking threshold.
I-F Rejection: Greater than 60 dB.
S-Meter: Automatically switched on when receiving. Calibrated to 50uV at S9, +/- 3 dB.
Dynamic Range: 90 dB, typical.
Offset Tuning: Dual range, MAX +/- 4 kHz; MIN +/- 500 Hz, typical.

DC Power Input: Maximum 200 watts @ 14 Vdc cw and ssb. 100% duty cycle for up to 20 minutes.
RF Output: 85 - 100 watts, typical.
Output Impedance: 50 ohms, unbalanced.
Microphone Impedance: High impedance. Accepts high or low impedance microphones with 5 mV output Polarizing voltage available for electrets.
T/R Switching: VOX or PTT on ssb. Instant break-in or semi-break-in on cw.
CW Sidetone: Internally generated. Adjustable tone and volume independent of af gain control. Operates only in cw mode.
SSB Generation: 9 MHz, 4-pole crystal ladder filter. Balanced modulator.
Carrier Suppression: 60 dB typical.
Unwanted Sideband Suppression: 45 dB typical at 1.5 kHz tone.
Spurious Output: Better than -45 dB relative to full output.
Meter: Forward power, collector current, SWR, processing level. Selectible 4 position switch.
CW Offset: 750 Hz, automatic
ALC Control: Front panel adjustable. 30 to 100 Watts output, LED indicator.

Model 263 Remote VFO
Model 280 Power Supply
Model 260 Deluxe Power Supply / Speaker
Model 215PC Microphone
Model 214 Microphone
Model 700C Hand-Held Microphone
Model 234 Speech Processor
Model 645 Dual Paddle Electronic Keyer
Model 670 Single Paddle Electronic Keyer
Model 227 Antenna Tuner
Model 220 2.4 kHz 8-Pole Crystal Ladder SSB Filter. To be installed in place of internal 4-Pole Filter.
Model 288 1.8 kHz 8 Pole Crystal Ladder SSB Filter
Model 285 500 Hz 6-Pole Crystal Ladder CW Filter
Model 282 250 Hz 6-Pole Crystal Ladder CW Filter

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