E.F. Johnson Messenger 4145 Desktop Transceiver

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One for the first CB rigs made by E.F. Johnson. It featured a hard wired crystal mic and LED display with dimmer function by pulling the squelch knob.

Any information regarding this rig is appreciated!

Frequency range

RX-range
26.965-27.? MHz
TX-range
26.965-27.? MHz
HAM bands
11m (CB) 
Stability
-
Tuning steps
-
Filters
-

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Receiver

Modulations
-
Sensitivity
-
Selectivity
-
Receiver system
-
IF-frequencies
-
Image rejection
-
Audio output
-

Transmitter

Modulations
-
RF-Output
? W

Connections

Antenna
SO-239
Impedance
-

Electrical

Power requirements
13.8 V DC
Current drain RX
-
TX
-

Physical

Dimensions (w×h×d)
-
Weight
-
Form factor
Base Station
Manufactured
Between 19xx and 19xx

Other features

Memories
40 channels in 1 bank(s)
Usage
Citizen Band (27Mc)
Features + options
LED channel read out with dimmer
5-segment LED S/RF bar-graph meter
ANL On/Off
PA
Accessories
-

Manuals, diagrams and brochures

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Related

Reviews

One of the last USA built rigs, and a bit ahead of its time.

E.F. Johnson Messenger 4145, Desktop Transceiver

Bought this rig at a hamfest table buy-out. This has to be one of the very last CB's that was manufactured in the USA, and one of the earliest 40CH rigs out there, vintage 1978. With a sleek design and feature that you'd expect from modest priced mid-1980's rigs, like a 5 segment LED S/RF meter. It gives you the impression of a mid-1980's rig reversed designed for a 1970's chassis. Being an EF Johnson, RF carrier = 3.2W out, a back lit Viking logo, a hardwired crystal hand mic, and a built-in speech processor. Modulation MAX OUT to about 75%, but is good and crisp. Receive sensitivity, if I had to guess, is around 1uV, and like other EF Johnson CB's I've tried, a very quiet receiver, even with the ANL switched off. Certainly not as sensitive as the Japanese counter parts, with .5uV, but adequate. Good AGC circuit as well, and can take in close stations without distortions. Squelch knob doubles as a channel display dimmer switch. You won't find many of these rigs since they were like $350.00 back then. If you are a collector of classic CB's, this rig is a 'must have'!

Written by rreh917 on Jan 16, 2017

Overall
 
Performance
Build quality
Features
User friendlyness
Value for money
Aquired
Good condition in 2008
USD 40.00

Prices

Estimating the value of a rig can be challenging. The graph below shows historical prices paid by hams over the years. May it guide you to good fortune...

Price Condition Year User
USD 40.00 Good / Used 2008 rreh917
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