[amsat-bb] Falconsat Success

Scott scott23192 at gmail.com
Sun Oct 22 13:39:36 UTC 2017

Congrats, Tony!

The following relay has been working very well for me to handle PTT:


... I use 5 VDC from a USB cable for the coil voltage with the application
of that coil voltage being triggered by the serial RTS signal from
HS_Soundmodem.  The above relay is great for that since the coil circuit is
controlled by an opto-isolator that can be operated by a low level signal
like the serial RTS.

The following item sure made it easy to attach a pair of wires to serial
RTS & ground:


-Scott,  K4KDR


On Sun, Oct 22, 2017 at 4:39 AM, Tony <dxdx at optonline.net> wrote:

> All:
> Managed to work Falconsat this morning using UZ7HO's Soundmodem, WISP and
> VSP. I don't have a PTT circuit so I had to use the rigs MOX function to
> send file requests. I wouldn't recommend doing that for obvious reasons --
> need to build a PTT circuit ASAP.
> If anyone is interested, this video guide shows the basics on how to setup
> Wisp and Soundmodem using HW-VSP.  See: https://www.youtube.com/watch?
> v=1ahlA-bRb5A
> 73, Tony -K2MO

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