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

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TECHNISONIC INDUSTRIES LIMITED
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TST-4x00 92-SC Installation & Operating Instructions TiL 93RE126 Rev F
2-5
2.3 CHANNEL FREQUENCY SELECTION
Early radios have their frequencies programmed by a diode matrix as
described in Section 2.3.3. For radio units shipped after July 2012 and
equipped with a USB port, please refer to Appendix A (TiL TDP-90
Programming Software User’s Guide for USB Programmable AM Series
Transceivers) - Document 11RE439.
2.3.1 Introduction
Before programming a new operating frequency, perform an operational check, as outlined in
Section 3. If there is any operational deficiency or equipment malfunction, return transmitter to the
manufacturer. Before use it is necessary to pre-program the operating frequency.
2.3.2 Frequency Range
The operating frequency may be programmed over the frequency range 117.975 MHz to 138.000
MHz with 25 kHz channel spacing.
2.3.3 Pre-programming Channel Frequency
Determine the operating frequency to be programmed and proceed as follows:
FREQUENCY SELECTION MHz.
Refer to Table 2.1 Frequency Selection MHz. Using the OPERATING FREQUENCY (MHz)
column, find the desired frequency in MHz. Cross-refer to the JUMPER LOCATION column, and
install the jumper as required.
FREQUENCY SELECTION KHz
Refer to Table 2.2, Frequency Selection kHz. Using the OPERATING FREQUENCY kHz column,
find the portion of the desired frequency in kHz. Cross-refer to the JUMPER LOCATION column,
and install the jumpers in the locations as required.
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 transmit frequency will be offset high.
(3) If J15 is installed in the Tx position, the transmit frequency will be offset low.
(B)
Trim capacitors C16 and C37, accessible from the bottom of the unit (see Figure 2.5), are
used to accurately adjust the transmit frequency. For the Tx frequency to be higher than
the receive frequency, proceed as follows: