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Re: [TenTec] Ham Radio

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Ham Radio
From: "Ron Castro" <ronc@sonic.net>
Reply-to: Ron Castro <ronc@sonic.net>,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 6 Jul 2006 14:40:31 -0700
List-post: <mailto:tentec@contesting.com>
It should be easy since the final IF is pretty similar to a computer sound 
card, and those cards can be adjusted by external software as we have seen 
in some PSK31 programs that can 'tweak' a card whose reference is off a few 
Hz.  I would be happy with that kind of adjustment.

Ron Castro
Chief Technical Officer
Results Radio, LLC

----- Original Message ----- 
From: "Grant Youngman" <nq5t@comcast.net>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Sent: Thursday, July 06, 2006 1:28 PM
Subject: Re: [TenTec] Ham Radio

>> >this morning.   The only specific comment I'd make now on the 4 items
>> >below is that #4 is the design of the Orion and Orion II - the
>> >receivers are not phase-locked together.  There is no
>> firmware change
>> >available to alter this.
> Well, maybe it's necessary to think outside the box a bit.
> While it may not be possible to phase lock the receivers, perhaps it's
> possible to get a bit closer through a fixed (or variable) calibration
> adjustment.  N4PY offers a "calibration" feature in his remote control
> software that permits setting the display to the correct frequency when 
> the
> master reference oscillator (and thus display calibration) is off a tad.
> I've always thought this concept could be applied in T-T firmware to 
> prevent
> the need to tweak the master reference when the radio is off a few Hz, and
> perhaps it could be applied to the Main/Sub difference as well -- not a
> phase lock soltuion, but not off 6 Hz, either.
> Seems straightforward, but I could just be slow -- and I'm sure many would
> agree the latter is the case :-)
> Grant/NQ5T
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