The Rockwell Collins KWM380 (One of the finest transceivers ever built).

KWM-380 SPECIFICATIONS

Parameter Specifications

Physical
Size 394 mm (15.5 in.) wide; 190 mm (7.5 in.) high,
inc. 25 mm (1 in.) feet; 457 mm (18.0 in.) deep.

Weight 27.2 kg (50 Lb.), max

Environmental
Operating temperature 0 to 50øC (32 to 122øF)
Operating humidity 0 to 90% relative humidity
Operating altitude 0 to 3049 m (0 to 10,000 ft.)
Vibration 2 g's, 10 to 33 Hz

Electrical
Primary power Strappable for: 105,115,125/210, 220, 230, 240,
250 V + 5%, 50 to 60 Hz; or 12 to 15 V dc,
negative ground:120 watts max in receive,
600 watts max in transmit

Receiver
Frequency 0.5 to 30.0 MHz, tunable in 10 Hz steps

Modes u.s.b., l.s.b., a.m..and c.w.

Sensitivity (Soft uV 0.5 pV or better for 10 dB (s+n)/n, 2.0 to 30.0 MHz,
measurement) s.s.b. and c.w.; 1.0 uV or better for 1.8 to 2.0 MHz.

Selectivity (3 dB Selectable:
bandwidth) 8 kHz *1.7 kHz
*6 kHz *360 Hz
2.1 kHz *140 Hz
*Optional Filters

I.F. and image rej Greater than 60 dB

Intermod distortion -50 dB or better for two signals of -10 db mW each,
20 kHz apart

AGC Audio output variation not more than 8 dB for 4 uV to
200 mV open circuit r.f. input variation

Audio output Not less than 3 W into 4 ohm load, at 1 kHz, at not
more than 10% total harmonic distortion
Line audio output not less than -10 dB mW nominal in
to 600 ohms
Frequency response: 300 to 2400 Hz with not more than
5 dB variation
Transmitter
Frequency 160 through 10 m amateur bands, in 10 Hz steps
160 m 1.800 to 2.000 MHz
80/75 m 3.500 to 4.000 MHz
40 m 7.000 to 7.300 MHz
20 m 14.000 to 14.350 MHz
15 m 21.000 to 21.450 MHz
10 m 28.000 to 29.700 MHz

Modes u.s.b., l.s.b., and c w. (RTTY by AFSK on l.s.b.)

Output power 90 W pep, min (100 W, nominal)
In c.w. or RTTY: 50% duty cycle; key down 15 minutes,
max. Automatic turndown to 50 W after 10 seconds.
With optional blower kit installed, power is 100 W
average, 50% duty cycle, key down 1 hour max at 25øC;
30 minutes max at 50ø C for all modes.

Unwanted sig suppression
Carrier -50 dB or better
Undesired sideband,
1 kHz ref -55 dB or better
Harmonics (all) -40 dB or better
Mixer products -50 dB or better
Third order distortion 25 dB below each tone of 2-tone test

Synthesizer accuracy Accuracy within + 5 Hz after 10 minutes warmup when
and stability 39.6 MHz and 455 kHz oscillators are set to within
+/- 3 Hz.
Stability within +150 Hz over temperature range of 0
to 50øC (32 to 122øF) if oscillator's set within
10 Hz at 25 øC (77 øF)

Antenna Impedance 50 ohms, nonreactive. (Full transmitter power output
with v.s.w.r. of 2:1 or less. Automatic power output
turndown with v.s.w.r. greater than 2:1.)

Audio inputs
Microphone Low or high impedance, dynamic; 3.3k nominal
impedance

Line 600 ohm, unbalanced; 40 mV input sufficient for full
r.f. power output