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Bookshelf VHF Transceiver
Mobile Transceiver
Desktop ULF/VLF Receiver

General

HAM bands 6m  11m (CB)  2000m 
Freq. stability ? ? ?
Tuning steps ? Channelized Continuous

Receiver

RX-range 50-52 MHz 26.965-27.405 MHz 15-500 / 500-1500 kHz (2 ranges, 7 bands)
Modulations CW   SSB   AM   FM   AM   CW   FSK  
Sensitivity ? ? 6 µV
Selectivity ? ? ?
Filters ? ? 0.1 / 1 / 2 / 4 / 8 kHz
Receiver system ? ? Double conversion cuperheterodyne, including circuit arragement for cancelling drift of crystal oscillator (34 tubes)
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? 500 mW unbalanced, 10 mW balanced

Transmitter

TX-range 50-52 MHz 26.965-27.405 MHz -
Modulations CW   SSB   AM   FM   -
RF-output 3 W 4 W ?

Connections

Antenna Built-in telescopic - Proprietary
Impedance 50Ω 50Ω 125Ω
Other - - -

Electrical

Power req. ?V DC ? Mains (115/230 V AC)
Current RX ? ? 250 W with oven on, 150 W when oven off
TX ? ? -

Physical

Manufactured Between 1975 and 198x Between 19xx and 19xx Between 1951 and 19xx in USA
Dimensions ? 115 × 35 × 180 mm
(4.53 × 1.38 × 7.09 in)
483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
Weight ? ? 37.20 kg (82.1 lbs) including power supply PP-621/URR
Form factor Handheld Mobile Base Station

Other features

Memories ? 40 channels in 1 bank(s) None
Usage Amateur / Ham radio operators Citizen Band (27Mc) Amateur / Ham radio operators
Features VXO ? Operating altitude up to 10,000 feet
Accessories ? ? ?
MPN ICOM-IC-000502 PRESIDENT-HARRY COLLINS-R-000389/URR