FM TRANSMITTER AND
BROADCASTING
SYSTEMS
AAREFF FM TRANSMITTER HOME
PLL LOCK CODES
RANGE GUIDE
TERMS & CONDITIONS
BACK

TECHNICAL INFORMATION
PLL LOOKUP TABLE
Continuous reliable power.....
To lock the PLL board first select the dip switches from one of the codes below. Secondly, adjust VC1 slowly until the RED LED starts to dim. Continue adjusting VC1 even more slowly, the RED LED will dim further or flicker, then the GREEN LED will illuminate. The GREEN LED indicates a locked condition. Experiment with the adjustment of VC1 to find centre lock.
DIP SWITCH (S2-SW1 and S1-SW2)
MHz
87.5
87.6
87.7
87.8
87.9
88.0
88.1
88.2
88.3
88.4
88.5
88.6
88.7
88.8
88.9
89.0
89.1
89.2
89.3
89.4
89.5
89.6
89.7
89.8
89.9
90.0
90.1
90.2
90.3
90.4
90.5
90.6
90.7
90.8
90.9
91.0
91.1
91.2
91.3
91.4
91.5
91.6
91.7
91.8
91.9
92.0
92.1
92.2
92.3
92.4
92.5
92.6
92.7
92.8
92.9
93.0
93.1
93.2
93.3
93.4
93.5
93.6
93.7
93.8
93.9
94.0
94.1
94.2
94.3
94.4
94.5
94.6
94.7
94.8
94.9
95.0
95.1
95.2
95.3
95.4
95.5
95.6
95.7
95.8
95.9
96.0
96.1
96.2
96.3
96.4
96.5
96.6
96.7
96.8
96.9
97.0
97.1
97.2
97.3
97.4
97.5
97.6
97.7
97.8
97.9
98.0
98.1
98.2
98.3
98.4
98.5
98.6
98.7
98.8
98.9
99.0
99.1
99.2
99.3
99.4
99.5
99.6
99.7
99.8
99.9
100.0
100.1
100.2
100.3
100.4
100.5
100.6
100.7
100.8
100.9
101.0
101.1
101.2
101.3
101.4
101.5
101.6
101.7
101.8
101.9
102.0
102.1
102.2
102.3
102.4
102.5
102.6
102.7
102.8
102.9
103.0
103.1
103.2
103.3
103.4
103.5
103.6
103.7
103.8
103.9
104.0
104.1
104.2
104.3
104.4
104.5
104.6
104.7
104.8
104.9
105.0
105.1
105.2
105.3
105.4
105.5
105.6
105.7
105.8
105.9
106.0
106.1
106.2
106.3
106.4
106.5
106.6
106.7
106.8
106.9
107.0
107.1
107.2
107.3
107.4
107.5
107.6
107.7
107.8
107.9
108.0
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OFF