Difference between revisions of "EF Johnson Challenger Series Information"

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===Model Number Decoding===
 
===Model Number Decoding===
  
−
In a posting on the EFJ yahoogroup a gentleman reported that the model numbers in the 71xx series of Challengers were organized such that:
+
Challenger series radios have the following part numbers.. they are in the form 242-MMMM-TBA
−
The VHF units were 715x and 716x (the 5x were 1st generation and 6x were 2nd generation)
 
  
−
The UHF units were 717x and 718x (the 7x were 1st generation and 8x were 2nd generation)
 
  
−
The frequency ranges below are based on practical experience not documented from EFJ.
+
242 = For the Challenger Series line
  
−
====7151====
+
MMMM = Model Number (see below)
 +
 
 +
T = Radio Type
 +
 
 +
B = Frequency Band
 +
 
 +
A = Accessories / Programming
 +
 
 +
 +
====Models====
 +
;7151;
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 25 Watts
 
:'''Output:''' 25 Watts
−
:'''Freq Range:''' 144-174 mHz
+
−
====7152====
+
 
 +
;7152
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 25 Watts
 
:'''Output:''' 25 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7153====
+
 
 +
;7153
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7154====
+
 
 +
;7154
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7155====
+
 
 +
;7155
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 20 Channel
 
:'''Channels:''' 20 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7156====
+
 
 +
;7156
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7157====
+
 
 +
;7157
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 100 Watts
 
:'''Output:''' 100 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7161====
+
 
 +
;7161
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 25 Watts
 
:'''Output:''' 25 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7162====
+
 
 +
;7162
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 25 Watts
 
:'''Output:''' 25 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7163====
+
 
 +
;7163
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7164====
+
 
 +
;7164
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7165====
+
 
 +
;7165
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 20 Channel
 
:'''Channels:''' 20 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7166====
+
 
 +
;7166
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 40 Watts
 
:'''Output:''' 40 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7167====
+
 
 +
;7167
 
:'''Band:''' VHF
 
:'''Band:''' VHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 100 Watts
 
:'''Output:''' 100 Watts
−
:'''Freq Range:''' 144-174 mHz
+
 
−
====7171====
+
 
 +
;7171
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 15 Watts
 
:'''Output:''' 15 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7172====
+
 
 +
;7172
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 15 Watts
 
:'''Output:''' 15 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7173====
+
 
 +
;7173
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7174====
+
 
 +
;7174
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7175====
+
 
 +
;7175
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 20 Channel
 
:'''Channels:''' 20 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7176====
+
 
 +
;7176
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7177====
+
 
 +
;7177
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 80 Watts
 
:'''Output:''' 80 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7181====
+
 
 +
;7181
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 15 Watts
 
:'''Output:''' 15 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7182====
+
 
 +
;7182
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 15 Watts
 
:'''Output:''' 15 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7183====
+
 
 +
;7183
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 2 Channel
 
:'''Channels:''' 2 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7184====
+
 
 +
;7184
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 8 Channel
 
:'''Channels:''' 8 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7185====
+
 
 +
;7185
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 20 Channel
 
:'''Channels:''' 20 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7186====
+
 
 +
;7186
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 35 Watts
 
:'''Output:''' 35 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
−
====7187====
+
 
 +
;7187
 
:'''Band:''' UHF
 
:'''Band:''' UHF
 
:'''Channels:''' 99 Channel
 
:'''Channels:''' 99 Channel
 
:'''Output:''' 80 Watts
 
:'''Output:''' 80 Watts
−
:'''Freq Range:''' 440-488 mHz
+
 
 +
 
 +
====Radio Type====
 +
;0 = Standard Front Mount
 +
;1 = Standard Remote Mount
 +
 
 +
 
 +
====Frequency Band====
 +
;1 = 403 - 430 mHz
 +
;2 = 450 - 488 mHz
 +
;3 = 488 - 512 mHz
 +
 
 +
 
 +
====Accessories / Programming =====
 +
;0-9 = Additional accessories
 +
 
 +
 
 +
 
  
 
The following numbers replace the x as mentioned above:
 
The following numbers replace the x as mentioned above:

Revision as of 01:46, 30 December 2012

EF Johnson Series Radio Information

these are very versatile radios, they will easily move into the ham bands VHF and UHF models. The logic boards can be swapped between models and reprogrammed so that you can make a 2 Channel VHF a 99 channel by just replacing the logic board and reprogramming. The boards between UHF and VHF are fully interchangeable. I have also converted non-remote models to remote and vice versa. Converting Dash Mount EF Johnson Challenger Radios to Remote Mount


Model Number Decoding

Challenger series radios have the following part numbers.. they are in the form 242-MMMM-TBA


242 = For the Challenger Series line

MMMM = Model Number (see below)

T = Radio Type

B = Frequency Band

A = Accessories / Programming


Models

7151;
Band: VHF
Channels: 2 Channel
Output: 25 Watts


7152
Band: VHF
Channels: 8 Channel
Output: 25 Watts


7153
Band: VHF
Channels: 2 Channel
Output: 40 Watts


7154
Band: VHF
Channels: 8 Channel
Output: 40 Watts


7155
Band: VHF
Channels: 20 Channel
Output: 40 Watts


7156
Band: VHF
Channels: 99 Channel
Output: 40 Watts


7157
Band: VHF
Channels: 99 Channel
Output: 100 Watts


7161
Band: VHF
Channels: 2 Channel
Output: 25 Watts


7162
Band: VHF
Channels: 8 Channel
Output: 25 Watts


7163
Band: VHF
Channels: 2 Channel
Output: 40 Watts


7164
Band: VHF
Channels: 8 Channel
Output: 40 Watts


7165
Band: VHF
Channels: 20 Channel
Output: 40 Watts


7166
Band: VHF
Channels: 99 Channel
Output: 40 Watts


7167
Band: VHF
Channels: 99 Channel
Output: 100 Watts


7171
Band: UHF
Channels: 2 Channel
Output: 15 Watts


7172
Band: UHF
Channels: 8 Channel
Output: 15 Watts


7173
Band: UHF
Channels: 2 Channel
Output: 35 Watts


7174
Band: UHF
Channels: 8 Channel
Output: 35 Watts


7175
Band: UHF
Channels: 20 Channel
Output: 35 Watts


7176
Band: UHF
Channels: 99 Channel
Output: 35 Watts


7177
Band: UHF
Channels: 99 Channel
Output: 80 Watts


7181
Band: UHF
Channels: 2 Channel
Output: 15 Watts


7182
Band: UHF
Channels: 8 Channel
Output: 15 Watts


7183
Band: UHF
Channels: 2 Channel
Output: 35 Watts


7184
Band: UHF
Channels: 8 Channel
Output: 35 Watts


7185
Band: UHF
Channels: 20 Channel
Output: 35 Watts


7186
Band: UHF
Channels: 99 Channel
Output: 35 Watts


7187
Band: UHF
Channels: 99 Channel
Output: 80 Watts


Radio Type

0 = Standard Front Mount
1 = Standard Remote Mount


Frequency Band

1 = 403 - 430 mHz
2 = 450 - 488 mHz
3 = 488 - 512 mHz


Accessories / Programming =

0-9 = Additional accessories



The following numbers replace the x as mentioned above:


1 = 2 Channel 25 watts (VHF) 15 watts (UHF)

2 = 8 Channel 25 watts (VHF) 15 watts (UHF)

3 = 2 Channel 40 watts (VHF) 35 watts (UHF)

4 = 8 Channel 40 watts (VHF) 35 watts (UHF)

5 = 20 Channel 40 watts (VHF) 35 watts (UHF)

6 = 99 Channel 40 watts (VHF) 35 watts (UHF)

7 = 99 Channel 100 watts (VHF) 80 watts (UHF)

If it had a -5 after the number it was a remote mount system

Radio Identification by Images

you can easily identify the band of the radio by looking at the inside. the UHF has two small cover plates the the VHF has on large one.

  • UHF Cover Plate

  • VHF Cover Plate


Power output of the radio can be determined by the size of the rear heatsink. the max power is also determined by the band (UHF/VHF)

  • UHF-80 Watts / VHF-110 Watts

  • UHF-35 Watts / VHF-40 Watts

  • UHF-15 Watts / VHF-25 Watts


Determining the number of Channels

(I'm missing an 8 channel image, but its easy, it only has one digit)

  • 2 Channel Non-remote

  • 20 or 99 Channel Non-remote

  • 99 Channel Remote

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