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Handheld VHF/UHF Transceiver
Desktop Transceiver

General

HAM bands ? 11m (CB) 
Freq. stability ? ?
Tuning steps 5 / 10 / 6.25 / 12.5 and 25 kHz Channelized

Receiver

RX-range 136-174 MHz (VHF version)
400-470 MHz (UHF Lo version)
450-512 MHz (UHF Hi version)
26.965-27.255 MHz
Modulations N-FM   W-FM   AM  
Sensitivity <0.2µV (12dB SINAD) 0.4 µV for 10 dB S/N
Selectivity 25 or 12.5 kHz 7 kHz @ -6 dB
21 kHz @ -60 dB
Filters ? ?
Receiver system ? Crystal controlled single conversion superheterodyne
IF-freqs. ? 455 kHz
Image rejection ? ?
Audio output ? 3 W

Transmitter

TX-range 136-174 MHz (VHF version)
400-470 MHz (UHF Lo version)
450-512 MHz (UHF Hi version)
26.965-27.255 MHz
Modulations N-FM   W-FM   AM  
RF-output Hi: 4 to 5W, Low: 0.5W 2.8 W

Connections

Antenna SMA -
Impedance 50Ω 50Ω
Other - -

Electrical

Power req. 7.2V DC or internal Li-ion battery Mains
Current RX ? ?
TX ? ?

Physical

Manufactured Between 200x and 20xx in China Between 195x and 196x in USA
Dimensions 55 × 100 × 32 mm
(2.17 × 3.94 × 1.26 in)
143 × 178 × 290 mm
(5.63 × 7.01 × 11.42 in)
Weight 230 gr (8.1 oz) including battery 5.40 kg (11.9 lbs)
Form factor Handheld Base Station

Other features

Memories 16 channels in 1 bank(s) 10 channels in 1 bank(s)
Usage Amateur / Ham radio operators Citizen Band (27Mc)
Features CTCSS / DCS
DTMF/2 tone/MSK ANI
1750 Hz tone
PC programmable
Reverse frequency function (shift)
Scrambler
?
Accessories ? ?
MPN PUXING-PX-000728 E.F.-JOHNSON-MESSENGER-II