RigPix logo

CB/Freeband logo


Back to main

Back to CB & "Freeband"

Next mobile


E.F. Johnson logo


Copyright logo


Last modified 2021-03-09

Valid HTML 4.01 Transitional

Johnson Messenger 110 (242-110)

A picture of Johnson Messenger 110 (242-110)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.255 MHz
Channels/tuning steps:5
Mode:AM
Frequency control:Two XTALs per channel
Frequency stability:0.005% @ -30 to +60C (-22 to +140F)
Power supply:13.8 VDC (Spade terminal)
Current drain/power consumption:RX: 100-300 mA
TX: 600 mA
Antenna impedance/connector:50 ohm / SO-239
Dimensions (W*H*D):158*63*218 mm (6.22*2.48*8.58")
Weight:2.07 Kg (4.56 lb), with microphone
Other features:




RECEIVER SECTION
Receiver system:Single conversion superheterodyne
IF: 455 KHz
Sensitivity:0.5 uV (8 dB S/N)
Selectivity:6 KHz (-6 dB)
30 KHz (-60 dB)
Image rejection:
AF output power/speaker:3 W at 10% distortion / 3.2 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:~3 W (5 W input)
Modulation system:High level, class B
Max FM deviation:No FM
Spurious emissions:Less than -? dB
Microphone impedance/connector:1 Kohm / Fixed cord
Microphone input sensitivity:? mV




MISCELLANEOUS
Manufactured:USA, 1968-1969 (Discontinued)
Main PCB:
Additional info:
Related documents:Service manual (18.6 MB)
Sams Photofact #:CB-19 (January 1969)
Modifications and fixes:
Reviews:
Options/Accessories:
239-120
239-125
250-49
250-849
250-854-2
In-converter
AC power supply
CB matchbox
Antenna meter
Power pack