User's Guide

T6T 50 W VHF Transmitter Page 20 Maintenance
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Any invalid parameters are not indicated until the Settings are downloaded to the radio. It is the radio that
rejects invalid parameters, not the VFP.
The transmitter’s reference frequency setting is displayed in the window. Adjusting the reference
frequency is a maintenance operation that requires external test equipment to be connected. The value
shown in the Settings window should not be changed; instead, adjustment of the reference frequency
should be performed using the radio’s front panel controls as detailed on page 3.
Channels Window
Up to 100 preset channels can be stored in the radio. These are listed in the Channels window. Any
channel frequency can be amended by clicking on the value to amend it and pressing Enter to confirm
the new value. Note that the amended channel is green until it is downloaded into the radio.
Any invalid frequencies are not indicated until the Channels are downloaded to the radio. It is the radio
that rejects invalid frequencies, not the VFP.
BIT Window
Two lists of information are presented. The current BIT status and the BIT history. The BIT history shows
the last 100 entries.
Status Information Window
The Status Information window gives information regarding the type of radio, the software fills, recent
VFP actions and Help information.
To Change the Transmitter’s Profile or Save a Profile
(1) Using a radio to PC serial interconnection lead, Park Air part number 17E12600001, connect the
radio’s front panel Microphone/Diagnostics connector to the PC’s Com Port 1 or Com Port 2
(note which Com Port is used).
(2) Run up the VFP software and check that a blank VFP screen (as shown below) is displayed.