I here nothing on 3.750 through 3.756 using V2.055 with exactly the settings
you listed.
Rig modified and up-dated recently at TT and it is a 1st production run
unit. Works great. The SP may not have the same response as V1, but not a
problem since it's clean audio. Seriously, it's all okay here without using
it on FM, AM, user buttons, the send business, or the keying loops. I use
the single relay cable to control the Alpha with no delay. Use external
memory keyer on CW.
Noticed that S-tone needs to be far lower setting on V2.055 vice V1. Now
use the suggestions for RF gain control/agc vice NR that Bill W4ZV
suggested. That is better also. But don't hear any distortion with the NR
on SSB or CW... just like the RF adjustment better for CW and SSB.
73,
Lynn W4NL
----- Original Message -----
From: "Sinisa Hristov" <shristov@ptt.yu>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>;
<orion@contesting.com>
Sent: Wednesday, March 08, 2006 7:38 PM
Subject: [Orion] Orion I V2.055 Spurious Response
Orion I with V2.055 set up as follows:
MAIN RX on ANT1 and VFO A, 3750 kHz LSB,
6 kHz roofing filter, BW = 2500 Hz, PBT = 0 Hz, 199 taps
RF GAIN = 100, PREAMP ON, no ATTN
A -79 dBm (S8 dB) carrier at 3750 kHz presented to ANT 1 input.
The normal response is heard by tuning Orion from 3750.0 to 3752.5 kHz.
A spurious response is heard by tuning Orion from 3753.5 to 3756.0 kHz.
It sounds "backwards" and is approximately 40 to 50 dB below the main
response.
Did this happen with V1 firmware?
73,
Sinisa YT1NT, VE3EA
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