Product manual

Appendix D: Setting Model 6 and Model 26 Audio Levels
122 025-9158L
once the FFSK receive level is set. If you do need to adjust the audio level going to the
PA amplifier use the following procedure. You will need to have the following:
• The Model 6 unit open and a small screwdriver or alignment tool suitable for
adjusting R87
• If you intend to set the audio to a specific level specified by the PA amplifier
manual, the required meter or test equipment to read the signal level at J3-pin 9
and J3-pin11
• Some means of communicating with the dispatcher at the Model 26 location to
coordinate the sending of test announcements (a slow 10-count or something like
that) to your station
♦
Adjusting the voice audio level sent to the PA input:
1. When you are prepared to make the adjustment, call the dispatch center and have
the operator send a station alert with PA to the station you are working on.
2. Once the alert tones are over and the voice audio is being sent to the PA
(whatever you arrange for as a test message), adjust R87 as necessary to get the
voice audio in the correct range. Repeat this step as necessary to get the level
correct.
Note
Turning the pot R87 fully counterclockwise will mute the PA
audio.
Tip
If the Model 6 has a handset installed, the final audio level to
the handset ear piece can be set with the pot R64. This setting
should be made after the PA audio level has been set using R87.
3. Remove any test equipment and close up the station transponder.