Here is a description of the MainRX / SubRX audio interaction that is
evident on my Orion:
Orion S/N 02C01874
F/W level: 1.371
Description: SubRX volume affects Aux I/O Pin 4 (Left) audio output
Symptom:
Running RTTY using audio from pin 4 (left) audio out of Aux I/O
DIN connector
As SubRX volume is increased, audio from main RX as indicated on
HAL DXP38 indicator decreases
- by time volume on SubRX equals MainRX, signal is
virtually gone on Pin 4 audio
- mute or volume lowered restores full signal level
- adjusting SubRX volume up causes MainRX signal on pin 4
to decrease
- adjusting SubRX passband or bandwidth does not affect
this problem
Audio Menu:
- Left: (any setting)
- Right: (any setting)
- Spkr: Both <- this appears to be the key parameter
Plugging headsets in improves the situation only slightly -
negligible.
Work Around: Set Audio Menu | Spkr to Main or Sub. Solves audio to Pin
4, but eliminates copy of both on speaker.
Problem is caused when Spkr is set to Both. Unfortunately, I run RTTY
with the speaker, and would want to listen to the SubRX on other bands
while still copying RTTY on the MainRX, so this is a severe limitation of
use of the 2nd RX while RTTY contesting. Hopefully this can be fixed.
73, Duane
--------------------------------------
Duane Calvin, AC5AA
Austin, Texas
http://home.austin.rr.com/ac5aa
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