[TenTec] Tapping a Delta II for a panadaptor?

Charles Strickland wa4oss at earthlink.net
Mon Jan 30 05:54:25 EST 2017


I am in agreement 100 % Carl.




-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Carl
Moreschi
Sent: Sunday, January 29, 2017 10:15 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Tapping a Delta II for a panadaptor?

I thought the QST article for panadapters was very poor.  It recommended
using the IF to feed the panadapter.  This is an archaic method.  Today with
the SDR receivers available such as SDRplay, much better results can be
obtained without the need for an IF tap.  These new SDR receivers (such as
SDRplay) can receive over a wide frequency range typically from
50 khz to well over 30 mhz.

Because of this, the most modern hookups now just involve connecting the SDR
receiver to the same antenna as the main radio and running them in parallel
with the main radio.  This gives a much wider and more versatile panadapter
than being stuck with the radios IF.

The only obstacle to this is a good way to share antennas without transmit
power from the main radio destroying the SDR receiver.  Some main radios
offer a receive out and receive in loop so with those radios it is a simple
setup.

For radios that don't have a good way to share antennas, several companies
offer solutions.  For example, one such solution is the DXE-RTR-1A from DX
Engineering.

Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com

On 1/29/2017 9:57 PM, km2km at twc.com wrote:
> After reading the Panadaptor article in the FEB 2017 QST  I'd like to 
> try that with my Delta II
>
> Has anyone done this?  Where is the tap for the IF?
>
> Suggestions?
>
> 73
> Kris KM2KM
> MERSCHROD
> 123 Warren Road
> Ithaca, NY 14850
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