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Last modified 2024-01-07

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Lafayette HB-840 AM/FM

A picture of Lafayette HB-840 AM/FM

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.255 MHz
Channels / tuning steps:24 (1-23 + 11A)
Mode:AM / FM
Frequency control:PLL (PLL02A)
Frequency stability:0.005%
Clarifier or Delta tune:No
Power supply:13.2 VDC
Current drain / power consumption:RX: 250 mA (Squelched)
TX: Max 1.2 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):165*58*210 mm (6.5*2.28*8.27")
Weight:1.5 Kg (3.31 lb)
Other features:External selcall connector.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz
2nd IF: 455 KHz - Ceramic filter: Murata CFW455
Sensitivity: AM: 0.7 uV (10 dB S/N)
FM: 0.5 uV (20 dB S/N)
Selectivity:10 KHz (-40 dB)
Image rejection:
AF output power / speaker:3 W at ?% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power:3.5 W
Modulation system:
FM deviation (Factory set):±1.5 KHz @ 1.25 KHz / 10 mV audio input
Spurious emissions:Better than -60 dB
Microphone impedance / connector:? ohm / 4-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 198x-198x (Discontinued)
Main PCB:PTBM094COX by Cybernet Electronics Corporation
Sub PCBs: PTLD036AOX - LED channel display board
PTSW084COX - Channel selector boared
PTZZ024AOX - Selcall relay board
PTZZ033AOX - FM board
Additional info: New price 1981 in Sweden_ SEK 1245:-
New price 1982 in Sweden_ SEK 1385:-
Related documents: PLL: PLL02A
Sams Photofact #:None
Modifications and fixes:
Reviews:Radio & Television: #6/7 1981, page 40
Options / Accessories:
Mobil-12
Mobil-100
External 2-tone selcall unit
External 5-tone selcall unit