Ed,
There was an article in the Sept/Oct 2014 issue of the AMSAT Journal about how to do that using the DDE links which both programs support directly. Slightly less flexible than the serial port, but easier to set up.
73,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of <EDWARD KROME via AMSAT-BB <Sent: Sunday, June 30, 2019 12:22 PM <To: amsat-bb@amsat.org <Subject: [amsat-bb] How to control HDSDR with SatPC32? < <Hi all: I apologize in advance because I know this question was answered on <this bb before, but I simply cannot find it. Can't find it in the docs, either. The <question: I want to use SatPC32 to automatically switch satellite frequencies <on an RSP1 SDR. I know there is an interface program (vspMgr) that makes <SatPC talk to HDSDR (and HDSDR commands the RSP1; that part works well) <but I can't find the details on how to make it work. Help, please. <Thanks! <Ed K9EK <EM69xd <_______________________________________________ <Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available <to all interested persons worldwide without requiring membership. Opinions <expressed <are solely those of the author, and do not reflect the official views of AMSAT- <NA. <Not an AMSAT-NA member? Join now to support the amateur satellite <program! <Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb