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Headless HF/VHF Transceiver
Desktop Transceiver
Handheld VHF Transceiver

General

HAM bands 160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  6m  11m (CB)  2m 
Freq. stability ±0.5 ppm 32 °F to 122 °F (0 °C to +50 °C) ? ?
Tuning steps 0.001-10.000 MHz kHz Channelized 5 kHz

Receiver

RX-range 0.01-60 MHz 26.965-27.255 MHz 144-148 MHz
Modulations AM   N-FM   CW   USB   LSB   DSB   RTTY   AM   FM  
Sensitivity Preamp off: 1.3 µV @ 14MHz
Preamp on: 0.3 µV @ 14MHz
(-123/-133 dBm in 500 Hz)
0.4 µV for 10 dB S/N ≥ 26 dB S+N+D/N+D at 1 µV
Selectivity CW 500 Hz –6/-60 dB: 500/640 (–6/–60 dB)
SSB 2.4 kHz –6/-60 dB: 2.39/2.54 (–6/–60 dB)
AM 6.6 kHz –6/-60 dB: 6.60/6.74 (–6/–60 dB)
7 kHz @ -6 dB
21 kHz @ -60 dB
± 7.5 kHz @ -6 dB
± 15 kHz @ -60 dB
Filters Software controlled ? ?
Receiver system SDR, Direct conversion, low IF Crystal controlled single conversion superheterodyne Double conversion superheterodyne
IF-freqs. Software selectable from DC to 20 KHz 455 kHz 1st: 10.695 MHz
2nd: 455 kHz
Image rejection 70 dB or better (160 - 6m Amateur bands) ? ?
Audio output Stereo line-out, accepts PC type speakers 3 W 300 mW into 8 Ohms

Transmitter

TX-range 160-6m 26.965-27.255 MHz 144-148 MHz
Modulations AM   N-FM   CW   USB   LSB   DSB   RTTY   AM   FM  
RF-output CW/SSB: 1-100 W PEP, AM: 2-25W 2.8 W High: 1.5 W, Low: 0.15 W

Connections

Antenna BNC + SO-239 - BNC
Impedance 50Ω 50Ω 50Ω
Other - - -

Electrical

Power req. 13.8V DC ± 10% Mains 8.4V DC
Current RX 1.5A ? 20-130 mA
TX 25A max ? 220-550 mA

Physical

Manufactured Between 2007 and 20xx in USA Between 195x and 196x in USA Between 1980 and 199x
Dimensions 236 × 221 × 315 mm
(9.29 × 8.70 × 12.40 in)
143 × 178 × 290 mm
(5.63 × 7.01 × 11.42 in)
65 × 117 × 35 mm
(2.56 × 4.61 × 1.38 in)
Weight 5.90 kg (13.0 lbs) 5.40 kg (11.9 lbs) 490 gr (1.1 lbs) with BP3
Form factor Headless Base Station Handheld

Other features

Memories 100000 channels in 1 bank(s) 10 channels in 1 bank(s) 800 channels in 1 bank(s)
Usage Amateur / Ham radio operators Citizen Band (27Mc) Amateur / Ham radio operators
Features SDR (Software Defined Radio) ? ?
Accessories ? ? ?
MPN FLEXRADIO-FLEX-005000A E.F.-JOHNSON-MESSENGER-II ICOM-IC-000002A