Transcript of a 1993 press release for the then forthcoming Atlas 310.
I don't think any actually made it out of the factory, unless you know better! It looks very much like the 400 which did, just about, hit the streets.
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ATLAS Radio introduces....The NEW Model 310 HF Tranceiver for SSB, CW, Packet and Amtor.
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* Features DDS (Direct Digital Synthesis) Frequency Control.
* COVERS ALL 9 AMATEUR RADIO HF BANDS:
Transmits and receives from 1.8 to 29.7 Mhz, and includes MARS and CAP frequencies. It will also receive all the HF Marine frequencies, as well as short wave broadcasting. (Note: As a transmitter, the 310 is designed only for amateur radio bands. It is not type accepted for transmission in the marine frequencies.)
* POWER OUTPUT:
150 watts PEP in SSB mode, 120 watts on CW, 80 watts on Packet and AMTOR. No transmitter tuning is required. Power is panel adjustable from 5 watts to full power. Rated power output requires 13.8 volts DC at the rear power connector with full transmit power.Lesser voltage will reduce power accordingly.
* DIGITIAL FREQUENCY DISPLAY:
7 digit readout to 10 Hz increments. Digits are LCD (liquid crystal display) 0.4 in. high, are back lighted for easy reading in light or dark surroundings.
* STANDARD FEATURES INCLUDE:
a) Break-in CW keying
b) Upper/lower sideband selection
c) PBT, Pass Band Tuning control
d) Internal speaker, top mounted
e) Noise blanker
f) The DDS has dual frequency capability which permits separate transmit and receive frequencies anywhere in the band, as well as the advantages of RIT.
* DDS, Direct Digital Synthesis, is a state-of-the-art system for generating the injection frequency required by the receiver front end mixer. The DDS chip is a product of Qualcomm, a San Diego, California company. It provides an extremely clean and stable output to the mixer, in both receive and transmit modes. The mixer is a Mini-Circuits component which assures high standards of receiver performance. Typical Receiver Specs: .25 microvolt sensitivity, Dynamic Range: 134 db, 3rd Order Intercept: 18 dBm. There is NO PLL (Phase Lock Loop).
* SINGLE CONVERSION SUPERHETERODYNE.
The DDS LO output converts the received signal to an Intermediate Frequency of 9 Mhz. A bank of 7 band pass filters provide more than 85 db image suppression. Each filter has 9 poles. Single conversion provides superior performance to multiple conversion, and enhances the KISS principle.
* SWITCHABLE CRYSTAL FILTER:
Standard feature provides choice of 3 band widths: 2.7 khz for normal SSB, 1.8 khz for narrow SSB in crowded band conditions, and 0.6 khz for narrow band CW. 6 to 60 Shape Factor is 1.4 to 1 in the 2.7 khz bandwidth position.
* DC POWER REQUIREMENTS: 12-14 volts at 500 Milliamps for receive, up to 22 amps for transmit. Average with SSB modulation will be approx. 8 amps.
* PHYSICAL SPECS.: 9 in wide, 3.5 in high, by 9 in deep.
Total weight, less power supply, 8 lbs.
* FACTORY DIRECT INTRODUCTORY PRICE: $795
* OPTIONS:
Power supply Console for 110/220 volts AC, 50-60 Hz $189 (plugs directly into the back)
Deluxe Mobile Mount (into which the Atlas 310 plugs) $ 69
MADE IN THE USA
ATLAS RADIO CO.
1556 Lower Lake Ct.
Cardiff, CA 92007
(619) 944 - 9622
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From the brochure for the NEW Model 310 HF Transceiver (for SSB, CW, Packet and Amtor) from Atlas Radio.
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See here for a brochure on the 400X which appears to be very similar.
Any comments or mods for the Atlas, or a picture of yours? Contact me at
Webmaster; Dave Pick, G3YXM.