[TenTec] O3 wish list

CSM(r) Gary Huber glhuber at msn.com
Thu May 12 10:02:57 PDT 2011

It may sound like heresy on this forum, but the use of an external SDR 
receiver like the Flex-1500 or any basic SDR running PowerSDR via the N4PY 
sub-RX mod provides the panadapter function without the IF port or tapping 
into the IF of older receivers. Or one MAY choose to receive the IF on the 

73 es DX,

Gary - AB9M

-----Original Message----- 
From: Barry N1EU
Sent: Thursday, May 12, 2011 11:29 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] O3 wish list

Well said and totally agree Paul.  Limited engineering resources can
be put to much better use.  If the rig mfr provides I.F. output,
they've done their job.

Barry N1EU

On Thu, May 12, 2011 at 12:19 PM, Paul Christensen <w9ac at arrl.net> wrote:
>> high speed display is missing the point entirely.  The name of the game
>> in panadaptors is RESOLUTION and the ability to twiddle sweep speed and
>> AVERAGING parameters in such a way that best allows you to visually
>> identify the weak signals you're looking for.
> For the reason explained by Floyd, it seems to me that today, inclusion of 
> a
> panadapter into a transceiver is not a very good use of a company's design
> resources.  The inclusion of a simple 8-9 MHz buffered IF port opens up a
> whole new world to the operating experience that can never be completely
> duplicated with internal band scopes.  Of course, that assumes a
> mid-frequency IF is available in the design that precludes such an option
> with traditional up-conversion designs.  Ten tec was smart to add an IF 
> port
> to the Eagle.  That one low-cost feature alone separates the Eagle from 
> the
> Kenwood TS-590 by a long shot.
> In 2005, I purchased an Icom IC-7800.  For the two years, my thought was
> that any manufacturer who could not, or would not, include an internal
> panadapter would soon face extinction.  I held that view until something
> quite abrupt occurred.  I experimented with an SDR-IQ on the IF port of an
> Elecraft K3.  After witnessing the panoramic detail, waterfall display
> choices, secondary receivers (through SDR-IQ), there was no turning back.
> Suddenly, I viewed internal panadapters as a millstone around the necks of
> manufacturers.   None of the present manufacturers have the resources to
> provide the pan ability and control utility provided by SDR-IQ, 
> SpectraVue,
> LP-PAN, PowerSDR-IF, etc., nor should they.   Look at the display provided
> by Yaesu with their FTdx-5000 product.  Frankly, it's a panadpater in name
> only.
> Manufacturers only need to give us a high-quality IF port and a means for
> rig control.  The rest of the panadapter and control functions can be 
> better
> managed by folks like Carl, N4PY, Moe, AE4JY, and Scott, WU2X.  Despite 
> past
> moans from Ten Tec users, I think that in the end, Ten Tec was right to
> delay inclusion of an internal high-performance panadapter into the O2. 
> At
> some point, perhaps Ten Tec may want to market an external panadapter
> similar to the Elecraft P3, where that device could be used for more than
> one Ten Tec transceiver.  Even so, it's doubtful that the device could
> approach the low cost and high performance provided by a small netbook PC
> and SDR-IQ or Softrock receiver.
> Paul, W9AC
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