[TenTec] Re: Orion subreceiver

[Richard Detweiler]

As a side note,

The use of the sub-rx for diversity reception greatly increases copy when 
you are using compromised antennas as well.  This is true for any band but 
more so on 160/80.

I use a Butternut HF9V 26' vertical and a W9INN 42' dipole.  Both are 
marginal receive antennas to say the least, but combined with diversity 
stereo reception, many unreadable signals at least becomes readable.    It's 
the difference of knowing when to send your call and if the reply was for 
you in a pile up for a weak signal.  It's the difference between a QSO and 
no QSO.

It isn't going to compete with a beverage or pennant on 160/80 but it 
definately helps.

This one capability of the Orion makes it worth the cost and learning curve 
to me.

Another advantage of stereo reception is I can easily switch TX antenna to 
the antenna that is receiving the best at the moment I'm ready to call.  
Although I almost always use the vertical for TX,  There have been a few 
cases where the horizontal phase was readable on the other end when the 
vertical was not.

Having the Sub-RX equal to the Main RX isn't as important unless there are 
strong near by signals causing the IMD,  Yet it would be usefull as 
mentioned to have identical receivers.

Perhaps what is needed are 3 receivers.  2 very good receivers with all 
associated roofing filters,  then a General coverage receiver as the Sub RX 
is now.

Best 73's
Rich
K5SF

>From: n1eu at netscape.net (Barry N1EU)
>Reply-To: tentec at contesting.com
>To: tentec at contesting.com
>Subject: Re: [TenTec] RE: [Orion] Orion subreceiver
>Date: Wed, 05 Jan 2005 10:17:16 -0500
>
>"n4lq" <n4lq at iglou.com> wrote:
>
> >This may be another opportunity for INRAD. I think their roofing filter
> >for the MP is 75mhz.
>
>Yes, and the 4Khz wide filter showed no improvement in the MP's close-in cw 
>performance.  The Omni VI and Orion fitted with the 600hz (9Mhz) roofing 
>filter performs so far above the nearest competition in tight 160M condx 
>that it makes me want to avoid vhf i.f.'s.  (Omni VI performance based on 
>assumption and initial glowing reports from W2VJN).
>
>73,
>Barry N1EU
>
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