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Re: [TenTec] Inrad Omni VI+ Audio Mod

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Inrad Omni VI+ Audio Mod
From: "Dave, K2DP" <k2dp@charter.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 14 Mar 2007 23:04:32 -0500
List-post: <mailto:tentec@contesting.com>
Larry,

I did the mod on my Omni 6 + (factory mod'd version for the 'Plus"). I have 
also put the INRAD SSB and CW filters into the radio. The advice from INRAD 
back 3-4 years ago when I did this was that the "audio" mod was not very 
effective unless you were already planning to use the INRAD SSB filters in 
conjunction with the mod. The effects of the mod are to allow you to 
appreciate the "audio effects" associated with shifting the passband tuning. 
I use it to knock off the high frequency hiss . However, the DSP filtering 
does that as well. It is an easy mod to install and the INRAD filters are 
superior to the original TT filters for both CW and SSB.

>From the standpoint of receive audio quality, when I want to listen to Hi-Fi 
SSB, I simply turn on my Collins 75A-4. Best sounding SSB audio of anything 
out there today. However, it is nowhere near as selective, sensitive or 
effective in digging sigs out of QRM, QRN and QSB as the OMNI 6+ receiver is 
!!!!!!!!!  Then again, it is 50 years old !!!!!

73 and enjoy your TT gear,
Dave, K2DP, St. Louis
----- Original Message ----- 
From: "Larry P. Greenberg" <wa9mag@ameritech.net>
To: <TenTec@contesting.com>
Sent: Wednesday, March 14, 2007 10:00 PM
Subject: [TenTec] Inrad Omni VI+ Audio Mod


>I am think about making the Inrad audio mod to my Omni VI+.  It widens the 
>audio frequency passband from 250 hz to 2800 hz instead of the stock 475 hz 
>to 2105 hz.  Affects seem to be most notable in the low frequencies.  Being 
>a DX'er, I am not sure an expanded low frequency response is what I want. 
>Seems that a rag chewer may be more interested in higher fidelity.  I would 
>be interested in list members opinions especially from DX'ers and 
>contesters.
>
> Larry, WA9MAG
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