TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TAF-550 Installation & Operating Instructions
TiL 96RE187 Rev D
3-6
3.3 GENERAL
OPERATING
INSTRUCTIONS
3.3.1
Preparation for Use
To prepare the transceiver for use (Refer to Figures 3.1, 3.2 and Table 3.1).
(1)
Location of Antennae
The VHF frequency band is essentially line of site communication. When selecting a location
there should be no obstacles between the communicating radio sites. Objects greater than two
metres will reflect the RF signal and foliage greatly attenuates signal strength. The VHF/AM and
VHF/FM antennae should be positioned as far apart as space permits for optimum performance.
The mounting height of each antenna should also be maximized. The antennae should be
separated by a minimum distance of at least 15 feet.
WARNING
Do not make physical contact with antenna when
transmitter is on. This unit can produce up to 10 Watts of
power when operated in High Power Mode.
(2)
Open front and rear access covers by levering the clip fasteners toward front of case.
Remove Microphone from its storage clip on the rear panel and install jack in Microphone
(PTT) connector. A clip to mount the microphone when connected for use is provided on
the top right hand side of the TAF-550 Modular case.
(3)
Ensure that TFM-138B and 91-DE transceiver POWER knob/switch are set to OFF.
(4)
Remove AC Cord from rear access cover and install in AC chassis connector on rear
panel or install External DC Cable in External DC chassis connector on rear panel as
required. Caution: Make certain to use the appropriate DC Cable for either 12V or 24V
DC operation. The 12VDC cable connects to pin 1 (12V input) and pin 2 (ground) of the
DC mating connector located on the rear of the TAF-550 case. The 24 VDC cable
connects to pin 3 (24V input) and pin 2 (ground) of the DC mating connector.
(5)
Install the appropriate antennae and cables to the rear panel chassis BNC connectors for
AM and FM use. Adjust Antenna location to maximize distance, height and vertical
polarization.
(6)
Select Main Power switch to the ON position. Verify the GREEN LED located above this
switch illuminates.
(7)
Remove the microphone from the front microphone mounting clip, and ensure that the
microphone connector is connected to the MIC/PTT connector on the TAF-550.
(8)
If desired connect a headphone to the front panel PHONE connector on the TAF-550.
(9)
Use the FM/AM selector switch on the front panel of the TAF-550 chassis to select the
Transceiver for which the microphone transmit and headphone receive operations will be
routed to.
(10)
Turn the FM Transceiver and/or AM Transceiver speaker ON or OFF as desired using
the ON/OFF selector switch located under each speaker.
(11)
For the 91-DE set the SQUELCH control in the fully counter-clockwise (CCW) position.
(12)
Set the VOLUME control as desired on both Transceivers.
(13)
Refer to Paragraphs 3.4 and 3.5 of this Manual for Operating Instructions specific to the
TFM-138B or 91-DE Transceivers.
