[TenTec] Orion I main and RX366 subreceiver differences

[Barry N1EU]

My main receiver and RX366 subreceiver sound essentially identical.

Without hearing a recording of the "sizzling" sounds, it's hard to
speculate.

Barry N1EU

On Tue, Mar 27, 2012 at 3:53 PM, Zivney, Terry <00tlzivney at bsu.edu> wrote:

> I had some major problems in the antenna systems this weekend (lightning)
> so spent some time comparing the main receiver in one of my Orions with the
> new RX366  subreceiver.  With the big signals on 15m SSB during the
> contest, I noticed some annoying 'sizzling' sounds on the main rx audio.  I
> had also noticed this in the V2 firmware.  The other Orion still has good
> old 1.372 installed, much less noticeable on that rig.  When switching
>  back and forth between the V3 Orion main and subreceiver (by hitting the
> Main and Sub Audio controls) I noticed the subreceiver was totally clean
> while the main had that annoying sizzling.  Both receivers had identical
> bandwidths, etc, and I had just done a master reset before listening.
>
> I would have thought that the two receivers would have had similar
> characteristics with the same firmware! Is there some substantial
> difference in the hardware for these two frontends?   I have promoted the
> subreceiver to be the normal receiver from this point on.
>
> Terry Zivney, N4TZ
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