3-3
3.1
INTRODUCTION
3.1.1
Transceiver Model TiL-91-DE/ 8.33, P/N 901006-2
with Option 8.33
The Transceiver is a microprocessor controlled VHF/AM transceiver operating over the entire band
of 117.975 to 138.000 MHz in 25 KHz steps. The transceiver will store ten user selected frequency
channels in addition to the resident emergency channel of 121.500 MHz. Frequency Selection,
Storage, Recall, Channel Scan, Search, and Toggle modes are all selected by the 12 key keypad.
Current operating frequency is displayed on a backlit liquid crystal display (LCD). Option 1 of Model
Til-91-DE/8.33 P/N 901006-2 with Option 8.33 has an internal DC to DC convertor for operation of
an RF Power Amplifier in the 15 Watt and 25 Watt Base Stations.
3.1.2
Scan, Search, and Toggle Modes
1.
SCAN MODE - In Scan Mode, the transceiver cycles through the preset Channel Frequencies
and locks on to the first channel received in scan sequence. Audio is enabled for 5 seconds
for operator identification. Pressing the Press-to-Talk switch exits the scan mode. If there is
no operator action then the transceiver remains operating in the scan sequence continuously.
2.
SEARCH MODE - In Search mode the transceiver cycles through the preset Channel
Frequencies and locks on to the first channel received in the scan sequence and normal
operation is resumed.
3.
TOGGLE MODE - In toggle mode the transceiver alternates between the current channel
selection and the previous channel selected.
3.1.3
Technical Summary
A summary of electrical, operational, mechanical and physical characteristics of the transceiver,
is provided in Table 3-1.
3.2
OPERATOR'S SWITCHES, CONTROLS AND INDICATORS
A view of the front and rear panel is given in Figure 3-2. A functional description of each of the
operator's switches, controls and indicators, and the microphone PRESS-TO-TALK switch, is given
in Table 3-2, Operator's Switches, Controls and Indicators and in Table 3-3, Channel/Function
Selector Keypad.
This section includes a functional description of each switch, control, indicator and connector
located on the front and rear panels of the portable transceiver, including the PRESS-TO-TALK
switch located on the microphone. Operating instructions for transmit/receive and the special
functions are also included.
Содержание TBS-150/8.33
Страница 15: ...2 3 Figure 2 1 Base Station Assembly Disassembly...
Страница 28: ...3 4 Figure 3 1 91 DE 8 33 Base Station Set Up...
Страница 31: ...3 7 Figure 3 2 Base Station Front and Rear Panel Layout...
Страница 42: ...3 18 Figure 3 3 Fixed Channel Jumper Locations...
