Categories
SDR and software Telemetry

Virtual Audio Cable for decoding satellite telemetry

When using several softwares for satellite telemetry decoding it is essential that you have the possibility to move (pipe) the audio streams between the different programs. One of the best programs is Virtual Audio Cable (VAC).

I will describe the fastest way to get started with this program on Windows 10.

Set up a virtual audio line:

After installing VAC, the first thing you do is to set up a virtual line with the control panel . I’m using a sample of 48 kHz like this:

Use the virtual line from source software:

In this case I’m using SDR-Console V3 and choosing the virtual line as output.

Use the virtual line at destination software:

For decoding telemetry the first step is using a sound decoder, here Soundmodem. Set the audio input line to the virtual line:

Now you have created a audio pipe “inside” your PC!

If you would like to listen to the audio, you can use VACs Audio Repeater to also pipe the virtual line to your computer’s audio output (headphones or speakers):

You can download and try VAC from this site:
https://vac.muzychenko.net/en/index.htm

And for a small fee you can buy a license for the full-featured version.

Categories
Ham Satellite news

Nytt nummer av ESR Resonans

Efter en ganska lång frånvaro har det nu kommit ett nytt nummer av ESR Resonans. Det är ett fantastiskt fint arbete av artikelförfattarna och redaktören att kunna ge ut en tidning med svenska artiklar!

http://resonans.esr.se/

Categories
Telemetry

Nexus FO-99 Strong CW telemetry

Nexus FO-99 Strong CW telemetry received 2019-10-25 with 13 el az/el tracking yagi. Noticed during pass that horizontal polarisation was better then vertical.

Categories
Ham Satellite news

AMSAT Cubesat Simulators Launched

Cubesat Simulator

AMSAT-NA lanserar nu en Cubesat-simulator som man kan låna (i USA antar jag) för att demonstrera hur en satellit skickar telemetri.

Cubesat Simulators Launched

Dr. Alan Johnston, KU2Y, Vice President – Educational Affairs has
announced the general availability of the AMSAT Cubesat Simulators.
Speaking at the 37th Annual Space Symposium, Alan reports that since
the prototype Cubesat Simulators were introduced at Hamvention in May,
2019, the simulators have undergone testing and final release. Among
the schools testing the simulators was Bishop O’Connell High School in
Arlington, Virginia. Science and Engineering teacher Melissa Pore
presented to the symposium audience her experience with using a
simulator in one of her engineering clubs and how her student
benefitted from their use.

A Cubesat Simulator is a self-contained satellite model that reports
solar cell performance via standard AFSK 1200 BPS AX.25 telemetry.
The telemetry can be decoded with a simple SDR ground station. A
Cubesat Simulator package consists of the 1U simulator, a halogen work
light to simulate sunshine, and a motorized rotating turntable that
mimics the satellite tumbling through space. The four loaner
packages are packed and shipped in a hard case. The simulator is
shipped prepaid while the user pays return shipping.

Persons interested in borrowing a CubeSat Simulator for a local
presentation is encouraged to contact Alan at KU2Y at amsat dot org.

[ANS thanks Alan Johnston, KU2Y, AMSAT Vice President – Educational
Affairs.]

Categories
Hamradio from ISS

ARISS contact recorded via SatNOGS station 2019-10-17

This is a recording of an ARISS school contact 2019-10-17 by SatNOGS station “858 – SM0TGU – VHF” on 145.800 MHz FM.

The recording was scheduled remote by a user in the network. It shows the power of SatNOGS network that is is possible to record satellite downlinks world wide.

Categories
Hamradio from ISS

ARISS contact recorded via SatNOGS station 2019-10-08

This is a recording of an ARISS contact 2019-10-08 by SatNOGS station “858 – SM0TGU – VHF” on 145.800 MHz FM. Bampton School, Bampton, United Kingdom, direct via G2LV.