Barnett Engineering ProTalk Plus B1290 - Audio Levels; Expander Attachment

Squelch Polarity (Program Code 6)
Radio Warmup (Program Code 2)
7. Expander Attachment
When an expander is added to the system, these parameters must be set.
They configure the main B1290 unit to accept the expander. The parame
-
terswithin theexpander must alsobe programmed. Refer totheAdvanced
Programming Examples for an example of how this is done.
Number of Expanders (Program Code 7)
Site Voice Enable (Program Code 7)
8. Audio Levels
Audio Levels (Program Code 9)
47 Programming Reference