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Re: [IRCA] Antenna switches for automated spectrum recording

I think I mentioned that my module is a SainSmart whose family of relay cards is pretty big.


A simple way to run scheduled events is via the Windows Scheduler. No programming necessary. And fortunately SainSmart supports command line parameters when you invoke the program.


So in principle you could have an 8 channel antenna switcher on a scheduled basis for $11.53.


Someday I'll do it, when my intercontinental network of retirement homes becomes available.


Chuck


________________________________
From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Nick Hall-Patch <nhp@xxxxxxxx>
Sent: Thursday, October 18, 2018 3:11 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] Antenna switches for automated spectrum recording

I've used a USB controlled relay board to switch two antennas to one
SDR remotely, Mark:

http://www.tinyosshop.com/index.php?route=product/product&path=141_142&product_id=630

(this outfit has a lot of neat toys)

However, if you wanted timed switching, you'd need to write your own
routine (perhaps)   I didn't look too far, as I had an immediate
problem that needed solving, controlling a remote receiver/computer
via Remote Desktop (Teamviewer is probably an easier alternative),
and switching antennas at a remote site.   But, I was the "timer" as
far as running the receiver and switching the antennas.

But, it should be doable, and could be done.   Not by me however; sorry.

best wishes,

Nick



At 18:56 2018-10-18, Mark Pettifor wrote:
>Given the following criteria:
>
>1. Two or more antennas
>2. Spectrum recordings are set up for two or more times of the day
>(sunrise and sunset, for example)
>
>Are there antenna switches out there that can be switched
>programmatically from my PC at certain times of the day?
>
>The goal is to be able to program spectrum IQ (or even single
>frequency IQ or audio) recordings at time T using antenna X.
>
>Or at the least, the goal would be to be able to remote in to my PC
>and run a program that would allow me to (a) select which antenna is
>active, and then (b) start a recording. I can already do (b), but
>the recording will be using whatever antenna happens to be selected
>on the mechanical switch (and it's usually the wrong one).
>
>Mark Pettifor
>Goshen, IN
>KC9DOC-en71ao
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Nick Hall-Patch
Victoria, BC
Canada

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