BENDIXKing E Series Lawrence, Programming Manual

Page: 25 / 29

TONE CODE GUARD VALUES
The tone Code Guard system may be set for any frequency in the range
of
67
to 255.9 Hz, However, since most systems adhere to the
Electronic industry Association (EIA) standards, tones should be selected
from the following EIA list. In order to insureoptimum performance, tone
selection for use on the same radio frequency (RF) channel or adjacent
channels in the same coverage area should be made from one of the
Groups A, B, or C to the maximum degree possible.
BENDIX/KING
guarantees optimum receiver performance only if tone frequencies
below
220
Hz are chosen.
GROUP A GROUP B GROUP C
67.0 (XZ) *151.4 (5Z) 71.9 (XA) 146.2 (4B) 74.4
77.0
(XB)
162.2 (5B) 82.5 (YZ) 156.7(5A) 79.7
88.5
(YB)
173.8 (6A) 94.8 (ZA) 167.9 (6Z) 85.4
(YA)
*100.0 (1Z) 186.2
(7Z) 103.5
(1A) *179.9 (6B) 91.5 (ZZ)
107.2 (1 B)
203.5
(Ml)
110.9 (2X) 192.8 (7A)
114.8
(2A) 218.1 (M3) “118.8 (2B) 210.7 (M2)
123.0 (3Z) 233.6 127.3
(3A)
225.7
(M4)
131.8 (3B)
250.3 136.5 (4Z) 241.8
141.3 (4A)
* 50/60 Hz power distribution systems could cause falsing.
The assignments in a given area shall be made from within one of the
Groups: A, B, or C.
2 4
BENDIX/KING