12
edits
Changes
Jump to navigation
Jump to search
mLine 502:
Line 502: + + Line 517:
Line 519: + +
added transmit audio info
Optionally, if you are using the built-in "offline repeat" functions, fail the connection to the host Asterisk server, and make sure your repeat audio performs the same as above.
Optionally, if you are using the built-in "offline repeat" functions, fail the connection to the host Asterisk server, and make sure your repeat audio performs the same as above.
==== Resolution issues when setting levels using built VOTER boards ====
Sometimes, depending on what radio is being used getting a good enough resolution with R61 when setting levels is a problem. You move a small amount on the pot and it jumps several hundred KHz of deviation. Inserting a 4:1 voltage divider between the VOTER board and transmitter helps with this. Something such as a 1K and 330 ohm resistor will work. This allows for much finer adjustment on the transmit audio (R61).
==Crappy Transmit Audio==
==Crappy Transmit Audio==
Just enable and set the level to 0. You'll thank me later.
Just enable and set the level to 0. You'll thank me later.
== Pulse Noise on Transmit Audio ==
It has been noticed sometimes on built VOTER boards that it has low level DAC noise which sometimes is apparent as a pulsing noise on the audio output. Adding a 4:1 voltage divider inline between the transmitter and VOTER board helps reduce or eliminate this as described above in Level setting.
=GPS=
=GPS=