TIL -92-SC TSC-4100, Инструкция по установке и эксплуатации

Страница: 20 / 50

TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TSC-4100/4200.4300 92-SC
Installation & Operating Instructions TiL 92RE125 Rev L
2-6
2.3.4 Offset Frequency Set
(A) Jumper J15, located on the single channel memory set board, module A5A1 selects the
frequency offset as follows:
(1) If J15 is not installed, frequency offset is inhibited.
(2) If J15 is installed in the Rx position, the transmitted frequency will be higher than
the receive frequency.
(3) If J15 is installed in the Tx position, the transmitted frequency will be lower than
the receive frequency.
(B)
Trim capacitors C16 and C37, accessible from the bottom of the unit (see Figure 2-5), are
used to accurately adjust the transmit and receive frequency.
For the Tx frequency to be higher than the receive frequency, proceed as follows:
(1)
Set jumper J15 on the memory set board to Rx position.
(3) Key PTT and set the transmitted frequency (without modulation) by rotating C16*
to the desired Tx frequency. *(Revised from C37 in Rev. D document).
(4) Set jumper J15 to Tx position. Key PTT and without modulation set the
transmitted frequency by rotating trim capacitor, C37 to the desired Rx
frequency.
(5) Set jumper J15 to the Rx position, key the PTT and without modulation, verify
that the transmitted frequency is the desired Tx frequency. If not, repeat steps 2,
3 and 4.
For the Tx frequency to be lower than the Rx frequency proceed as follows:
(1)
Set jumper J15 to the Rx position. Key the PTT and without modulation set the
transmitted frequency, rotating trim capacitor C16 to the desired Rx frequency.
Release PTT.
(2) Set Jumper J15 to the Tx position. Key the PTT and without modulation set the
transmitted frequency by rotating trim capacitor C37 to the desired transmit
frequency. Release PTT.
(3) Set jumper J15 to the Rx position. Key the PTT and without modulation, verify
that the transmitted frequency is the desired receive frequency. If not repeat
steps 1, 2, and 3. If it is, release the PTT and set jumper J15 to the Tx position,
thus completing the frequency tuning.