My software keeps both radios on the same frequency. It allows you to
click on the panadapter display and have the radio instantly go there.
And as you tune the radio, the panadapter radio will follow it. It
works really well this way.
73,
Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com
On 1/31/2017 5:57 PM, Bill Cotter wrote:
Carl,
Using the method you propose (parallel receiver), how do you make the
SDR track the received frequency so that it signal heard is always
centered in the panadapter view?
73 es tnx Bill N4LG
At 10:14 PM 1/29/2017, you wrote:
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@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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