Mark: Have you ever checked the original Orion's frequency response? I
checked the O2 and it's pretty good, although not quite what the specs
implied. I found that the response at 50 Hz with the TX EQ set flat and
L.F. Rolloff at 50 Hz is off 15 dB instead of the 6 dB claimed. It was -7
dB at 100 Hz and -3 dB at 200 Hz. Pretty flat up to where the TX Filter BW
is set. All in all, that's not bad response, but I was not able to flatten
it out with the W2IHY system. It's still better than just about anything
"out of the box" except for the TS-870.
Frequency response on AM is nothing short of amazing: +-1 dB down to 20 Hz!
I checked into the AMI net the other night and net control commented that I
sounded as good as any of the guys running the big plate-modulated broadcast
transmitters.
Ron Castro
Chief Technical Officer
Results Radio, LLC
----- Original Message -----
From: "Mark DeBord" <markinkpt@hotmail.com>
To: <tentec@contesting.com>
Sent: Monday, February 13, 2006 5:23 PM
Subject: [TenTec] V2.0 for the original Orion
Update so far.
Loaded the beta code on the original Orion. Did a master reset.
Immediately,
the display is much dimmer and the contrast must be set to about 42. The
sweep display works great. Mine had the hardware mod already since I
bought
mine recently. The monitor function works better too; do not have to turn
the af gain up when listening to my audio; matches the receive level now.
However, the transmit audio has changed. I just recently bought the w2ihy
boxes and had my equalization and mic gain on th Orion set to match.
However, the mic gain must now be reduced to almost 20 with the Studio One
(which might be good) and the TX equalization is off. Not sure what the EQ
settings must be set to now. I used to run it at -6 db with the w2ihy
equipment, but will have to find the sweet spot now. I think I will need
to
re-adjust the w2ihy equipment equalization to get my audio back in line. I
actually loaded the old software back since I did not have time to play
with
the transmit audio tonight; will try again later. If anyone else figures
it
out, using the Studio One, please post.
Thanks,
Mark KA4ICK
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