THE SWAN 500
Introduced in 1967 as a deluxe version of the 350, the 500 offered 480 watts PEP-SSB power. The 500C, which was first sold in 1968, offered the same power output but had a 2.7 Kc bandpass for both transmit and receive, 50 db sideband suppression, and grid block CW keying. Pictured here is a deluxe version of the 500C, the SS16, complete with the 16 pole crystal filter. The 500CX was the
final version of this series, and it offered the following improvements in 1970. New AGC circuit with faster attack and controlled decay, amplified automatic gain control (AAGC), 25 kc and 100 kc crystal calibrator, carrier suppression exceeding 60db, improved product detector, and increased AF gain with less distortion. A review of the 500C appears in the April 1969 issue of CQ.
Frequency Ranges
80 meters 3.5 to 4 mc
40 meters 7.0 to 7.450 mc
20 meters 14.0 to 14.450 mc
15 meters 21.0 to 21.450 mc
10 meters 28.0 to 29.7 mc
Power Input
Single Sideband, Suppressed Carrier: 520 watts PEP, minimum all bands CW:
360 watts, dc input all bands
AM: (single sideband with carrier) 125 watts dc input all bands
Distortion
Distortion products down more than 30db
Unwanted Sideband Suppression
Unwanted sideband down more than 50db
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