SYN-TECH III P25 PORTABLE RADIO
SERVICE MANUAL
4-1
4 ADJUSTMENT
4.1 DEFINITIONS AND ABBREVIATIONS
Additional definitions and abbreviations used are:
f
A
: The lowest operating (user) frequency or adjacent channel
f
U
: The highest operating (user) frequency or adjacent channel
f
O
: (f
A
+ f
U
)/2 or adjacent channel
f
S
: Spurious Signal Frequencies; Spurious Receiving Suppression test. These are the Spurious Signal
Frequencies, which are given in Table 4-1.
Table 4-1: Spurious Signal Frequencies
Test
Frequency
f
S
: Spurious Signal Frequencies (MHz)
f
A
2f
A
/ 3+45 f
A
+ 90 f
A
+ 30 f
A
+ 22.5 f
A
+ 0.9
4.2 ADJUSTMENT CONDITIONS
Adjustments are applied under standard conditions.
4.3 ADJUSTMENT SETUP
Adjustment setup is shown in Figure 4-1.