Motorola HT1250, Service Manual

Page: 54 / 96

5-6
Radio Tuning, Programming, Cloning, Lowband Antenna Cutting Procedure, PassPort Tone Options, and Diagnostic Functions
5.7 Lowband Molded Antenna Cut Chart
This chart is for antenna NAB6064 used with professional radio series.
NOTE: The chart below is not drawn to scale. Obtain and use a standard ruler for marking of cutting
measurements.
of an antenna already cut. DO NOT use it to make the actual cut.
This chart can be used to verify the length or frequency
Frequency Verification Chart
Freq (MHz)
30
32
34
36
38
40
42
44
46
48
50
Final Antenna
Length (Inches)
11 9/16 (29.369 cm)
11 7/16 (29.052 cm)
10 5/8 (26.988 cm)
10 (25.400 cm)
9 3/8 (23.813 cm)
8 7/8 (22.543 cm)
8 5/16 (21.114 cm)
7 7/8 (20.003 cm)
7 1/2 (19.050 cm)
7 3/16 (18.256 cm)
6 7/8 (17.463 cm)
NOTE:
Antenna length
measured from
top of antenna
to bottom of
rubber skirt.
Cutting Instructions
1. Remove cap from antenna.
2. Measure from top of antenna down to the
desired length corresponding with the desired
frequency.
3. Mark the antenna, then cut at that mark.
4. To replace the antenna cap, put a small bead
of #414 Loctite™ (Motorola part number 1110019B59)
around the inside walls of the antenna cap. Place
the cap on top of the antenna and seat fully.
0.5
(1.3 cm)
1.0
(2.5 cm)
1.5
(3.8 cm)
2.0
(5.1 cm)
2.5
(6.4 cm)
3.0
(7.6 cm)
3.5
(8.9 cm)
4.0
(10.2 cm)
4.5
(11.4 cm)
5.0
(12.7 cm)
5.5
(14.0 cm)
0
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
C
U
T
L
E
N
G
T
H
I
N
I
N
C
H
E
S
FREQUENCY IN MHZ
TOP OF ANTENNA