GE Mastr II VHF Mobile Nomenclature

1st digit - Mechanical Package

M = Standard

2nd digit - Operating Voltage

C = +12VDC, Neg Gnd
X = ± 12VDC, Less accessories

3rd digit - Output Power

5 = 40 Watts
6 = 65 Watts
7 = 110 Watts

4th digit - Channel Spacing

6 = 30 kHz

5th digit - Control

A = 1-Freq
C = 2-Freq
K = 8-Freq

6th digit - Number of Freqs.

A = 1-Freq Xmit, 1-Freq Rcv
B = 2-Freq Xmit, 1-Freq Rcv
C = 2-Freq Xmit, 2-Freq Rcv
D = 1-Freq Xmit, 2-Freq Rcv
E = 3-Freq Xmit, 3-Freq Rcv
F = 4-Freq Xmit, 4-Freq Rcv
G = 5-Freq Xmit, 5-Freq Rcv
H = 6-Freq Xmit, 6-Freq Rcv
J = 7-Freq Xmit, 7-Freq Rcv
K = 8-Freq Xmit, 8-Freq Rcv

7th digit - Options

S = Standard
U = Channel Guard
N = Noise Blanker
W = Channel Guard & Noise Blanker
P = UHS Receiver
Q = UHS Receiver & Channel Guard

8th & 9th digits - Frequency range

56 = 138 -- 150.8 MHz
66 = 150.8 -- 174 MHz

10th digit - Oscillator Stability

A = ± 5 ppm
B = ± 2 ppm
C = ± 5 ppm (PLL)
D = ± 2 ppm (PLL)