Collins 32S-1 Transmitter Specifications

32S-1 Transmitter.

The 32S-1 Transmitter develops 100 watts output power (nominal) on all amateur bands between 3.5 and 29.7 mc. Input power is 175 watts PEP on SSB or 160 watts CW.

Frequency Coverage.

The 32S-1 has band-switch positions and corresponding cryatal sockets for 14 200-kc bands. Crystals are furnished for complete coverage of all amateur bands except 10 meters. On 10-meter crystal is furnished, and the crystal mounting block has extra sockets for two additional crystals. One other spare crystal socket and band-switch position are provided for an additional band between 9.5 and 15.0 mc. Other crystals may be substituted for those furnished to place the transmitter at other frequencies throughout the range.

Requirements for Operation.

The transmitter requires the following power supply voltages:
+800 volts d-c at 200 ma for PA plates
+275 volts d-c at 175 ma for PA screens and low-voltage plates
Bias voltage adjustable between -60 and -80 volus d-c
6.3 volts a-c at 6.0 amperes or
6.0 volts d-c at 6.0 amperes or
12.0 to 14.0 volts d-c at 3.0 amperes or
24.0 to 28.0 volts d-c at 1,5 amperes

These voltages may be supplied with the Collins Power Supplies 516F02 (a-c source), 516E-1 (12-volt d-c source), 516E-2 (24-volt d-c source), or 516F-1 with adapter cable. The antenna and feed system must present a 50-ohm load with swr not exceeding 2.0 to 1. Any high-impedence crystal or dynamic microphone and any key may be used with the 32S-1 Transmitter.

Specifications.

Size	6-9/16 inches high, 14-3/4 inches wide, 11-1/2 inches deep.
Weight	16 pounds.
Frequency range	3.4 to 30.0 megacycles. With crystals furnished, bands are as follows: 80 meters - 3.4 to 3.6 mc, 3.6 to 3.8 mc, and 3.8 to 4.0 mc. 40 meters - 7.0 to 7.2 mc, and 7.2 to 7.4 mc. 20 meters - 14.0 to 14.2 mc, and 14.2 to 14.4 mc. 15 meters - 21.0 to 21.2 mc, 21.2 to 21.4 mc, and 21.4 to 21.6 mc. 10 meters - 28.5 to 28.7 mc.
Mode	Single sideband (selectable), CW, or AM.
Type of service	SSB-continuous; CW -50% duty cycle.
Plate power input	175 watts PEP (nominal), 160 watts on CW.
Power output	100 watts PEP (nominal) into 50 ohms.
Microphone input impedence	High impedence.
R-f output impedence	50 ohms with not more than 2.0-to-1 swr.
Frequency stability	Total variation after warmup not more than 100 cps.
Callibration accuracy	1 kilocycle.
Keying	Break-in.
Audio-frequency response	300-2400 cps +/-6 db.
Carrier suppression	Carrier 50 db down from output signal
Unwanted sideband	50 db down from output signal
Oscillator feedthrough or mixer products (undesired)	50 db down from output signal
Second harmonic	50 db down from output signal
Third order harmonic	30 db down from output signal