TIL TiL-92-SC, Инструкция по установке и эксплуатации

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TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TSR-4100 92-SC Installation & Operating Instructions TiL 93RE125 Rev F
3-5
Recommended procedure:
The squelch taper on a dual conversion receiver looks as follows:
Squelch knob position Squelch setting
12 o’clock 0.5uV
3 o’clock 1.2uV
3:30 position 2.5uV
4 o’clock 3uV
Fully clockwise 9uV
It is recommended that the squelch be set to at least 2.5uV (3:30 knob position) at busy
airport locations. If ACARS signals are present on adjacent or nearby channels the
squelch level should be at least 3uV (4 o’clock) to prevent ACARS bleed through.
(3) The VOLUME control can then be adjusted in a clockwise direction to increase the audio
level, or in a counter-clockwise direction to decrease the audio level which can be heard
on the internal loudspeaker.
NOTE
When an external loudspeaker or headset is connected to the
SPEAKER/PHONE jack of the receiver, the internal loudspeaker is
automatically disconnected. The VOLUME control will now control the
audio level applied to the external loudspeaker or headset, as applicable.
3.4.3 Switching OFF
To switch off the receiver:
(1)
Set the POWER ON/OFF on transceiver to switch to OFF.
(2) Verify that all indicator LED's on the front panel are OFF.
NOTE
When the receiver is switched OFF there is no current drain from
external DC.
3.4.4 EXTERNAL DC OPERATION
(1)
Set AC ON/OFF switch to OFF.
(2) Refer to Table 2-3 for pin numbers and Figure 3.1 for pin locations to hook up external
DC Power.
NOTE
Ensure that the DC source voltage is within the range of 11.5 Vdc to
15 Vdc, unless optional A6 Module is ordered to allow operation
with an input supply from 21.7 Vdc to 30 Vdc.