Selecting The Applicable Keying Method - Park Air T6T User Manual

SELECTING THE APPLICABLE KEYING METHOD

Factory default setting. The transmitter is set for remote 0 volt keying unless specified
The transmitter can be remotely keyed through the Facilities connector CN5 using either the Remote
PTT input, or by using Phantom Keying on the audio lines. The chosen method, and the required keying
potential is selected by the position of two jumpers (JP8 and JP9) fitted on the transmitter's DSP module.
To access the jumpers, remove the M3 captive screws that secure the transmitter's top cover (if not
already removed). Remove the cover and identify the links by referring to Fig. 2-3. Set the links to the
required positions as detailed under the next two headings: "Remote Keying" and "Phantom Keying".
When the jumpers have been configured, refit the transmitter's top cover.
T6T Transmitter with top cover
removed showing position of
DSP module and jumpers JP8
and JP9
Section 2
Page 10
otherwise at the time of ordering.
Phantom Keying
Remote Keying
Fig. 2-3 Location of Jumpers JP8 and JP9
Front Panel
DSP Module
28V
0V
JP8 JP9
T6T AM-Voice Operation