Nomenclature
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GE Mastr II Nomenclature

A special thanks to Keven K. Custer, W3KKC for this information.

You can find the MASTR II combination number on their ID plate which is located on the front of the radio to the left of the RF connector.  On the same ID plate you will also find the transmitter ID which is important when IDing a UHF PA deck.   Some UHF PA decks are called "trippler decks" because they tripple the exciter frequency to produce the desired output frequency.

The first digit is "M" which equates to it's mechanical packaging which is standard.

The second digit is system voltage, either a "C" for 12 VDC negitive ground or an "X" for 12 VDC positive or negitive ground less accessories.

Special thanks to Rob, K7TGU for providing the complete GE nomenclature for the MASTR II mobile radio.

 

25 - 50 MHz MASTR II

3rd  
Power
Output
4th  
Channel
Spacing
5th  
Frequency
Capability
6th  
Number
Frequencies
7th  
Options
8th & 9th   
Frequency
Range
10th
Oscillator
Stability
6
30 watts
4
20 kHz
A
1 Freq
A
1 xmit
1 recv
S
Standard
12
25 - 30 MHz
A
5 ppm
7
100 watts
C
2 Freq
B
2 xmit
1 recv
U
channel guard
13
30 - 36 MHz
B
2 ppm
K
8 Freq
C
2 xmit
2 recv
N
noise blanker
23
36 - 42 MHz
D
1 xmit
2 recv
W
channel guard &
noise blanker
33
42 - 50 MHz
E
3 xmit
3 recv
F
4 xmit
4 recv
G
5 xmit
5 recv
H
6 xmit
6 recv
J
7 xmit
7 recv
K
8 xmit
8 recv

 

66 - 88 MHz MASTR II

3rd  
Power
Output
4th  
Channel
Spacing
5th  
Frequency
Capability
6th  
Number
Frequencies
7th  
Options
8th & 9th   
Frequency
Range
10th
Oscillator
Stability
5
25 watts
4
20 kHz
A
1 Freq
A
1 xmit
1 recv
S
Standard
44
66 - 78 MHz
A
5 ppm
C
2 Freq
B
2 xmit
1 recv
U
channel guard
45
77 - 88 MHz
B
2 ppm
K
8 Freq
C
2 xmit
2 recv
D
1 xmit
2 recv
E
3 xmit
3 recv
F
4 xmit
4 recv
G
5 xmit
5 recv
H
6 xmit
6 recv
J
7 xmit
7 recv
K
8 xmit
8 recv

 

138 - 174 MHz MASTR II

3rd  
Power
Output
4th  
Channel
Spacing
5th  
Frequency
Capability
6th  
Number
Frequencies
7th  
Options
8th & 9th   
Frequency
Range
10th
Oscillator
Stability
5
35 watts KT-32-A,C
40 watts KT-32-B,K
6
30 kHz
A
1 Freq
A
1 xmit
1 recv
S
Standard
56
138 - 150.8 MHz
A
5 ppm
6
65 watts
C
2 Freq
B
2 xmit
1 recv
U
channel guard
66
150.8 - 174 MHz
B
2 ppm
7
110 watts
K
8 Freq
C
2 xmit
2 recv
N
noise blanker
C
5 ppm
PLL
D
1 xmit
2 recv
W
channel guard &
noise blanker
D
2 ppm
PLL
E
3 xmit
3 recv
P
UHS receiver
F
4 xmit
4 recv
G
UHS receiver &
channel guard
G
5 xmit
5 recv
H
6 xmit
6 recv
J
7 xmit
7 recv
K
8 xmit
8 recv

 

406 - 420 & 450 - 512 MHz MASTR II (40 Watts)
450 - 512 MHz MASTR II (20 Watts)
Transmitter ID's: KT-35-A,C - KT-36-A,C
(These are the trippler type PA decks)

3rd  
Power
Output
4th  
Channel
Spacing
5th  
Frequency
Capability
6th  
Number
Frequencies
7th  
Options

8th & 9th
Frequency
Range

10th
Oscillator
Stability
5
20 watts
5
25 kHz
A
1 Freq
A
1 xmit
1 recv
S
Standard
77
406 - 420 MHz
A
5 ppm
6
40 watts
C
2 Freq
B
2 xmit
1 recv
U
channel guard
88
450 - 470 MHz
B
2 ppm
K
8 Freq
C
2 xmit
2 recv
P
UHS receiver
89
470 - 494 MHz
D
1 xmit
2 recv
G
UHS receiver &
channel guard
91
494 - 512 MHz
E
3 xmit
3 recv
F
4 xmit
4 recv
G
5 xmit
5 recv
H
6 xmit
6 recv
J
7 xmit
7 recv
K
8 xmit
8 recv

 

406 - 512 MHz MASTR II
Transmitter ID's: KT-35-B,D - KT-36-B,D - KT-37-A,C - KT-112-A,C

3rd  
Power
Output
4th  
Channel
Spacing
5th  
Frequency
Capability
6th  
Number
Frequencies
7th  
Options
8th & 9th
Frequency
Range
10th
Oscillator
Stability
4
20 watts
5
25 kHz
A
1 Freq
A
1 xmit
1 recv
S
Standard
77
406 - 420 MHz
A
5 ppm
5
40 watts
C
2 Freq
B
2 xmit
1 recv
U
channel guard
78
420 - 450 MHz
B
2 ppm
6
75 watts
K
8 Freq
C
2 xmit
2 recv
P
UHS receiver
88
450 - 470 MHz
7
100 watts
D
1 xmit
2 recv
G
UHS receiver &
channel guard
89
470 - 494 MHz
E
3 xmit
3 recv
91
494 - 512 MHz
F
4 xmit
4 recv
G
5 xmit
5 recv
H
6 xmit
6 recv
J
7 xmit
7 recv
K
8 xmit
8 recv
 
Except for portions owned by others, Copyright: Ray Vaughan, 2008

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