Meteor scatter communications is a rare and fascinating mode of ham radio. It uses radio signals that reflect off tiny rocks that enter the atmosphere at high speeds during meteor showers. These showers happen several times a year with the largest in August and December. To use this mode, you need to prepare well, have […]
Overview The W2MMD satellite station at the Gloucester County Amateur Radio Club’s clubhouse is pretty close to state of the art. We have the top-of-the-line M2 satellite antennas, an SDR Play receiver for copying the downlinks, PST Rotator software for rotator control and Doppler correction and an aging Yaesu 847 transceiver used only for transmitting. […]
Field Day is always an important event for the GCARC Skunkworks team. A single satellite QSO is worth 100 bonus points – more points than some single-band stations get throughout the entire contest – and everyone in the club knows whether we’ve succeeded or failed at getting that QSO. And the satellite station needs to […]
Select satellite in Next Pass list Antennas – 70 cm on SDR; 2 meter on 847; preamp on Rotator set to track Satellite Doppler tracking set SDR set to WFM SDR recording set if desired FOR WISP ONLY: HW Serial port configured for COM6 – Login, change Port Name to COM6, URL and Port to […]
Copying the 9600 baud telemetry signal from Falconsat 3 has been a objective ever since we set up the W2MMD satellite station. This satellite was built by cadets at the US Air Force Academy and was turned over for ham use after its military mission was complete last year. Its primary communication method is 9600 […]
Here’s a link to the PowerPoint presentation at the GCARC Tech Saturday session in May 2018 on satellite operations. https://1drv.ms/p/s!ApbrAotXoVehn1X_NbnDl1UscOQQ
The DopplerPSK program is used to correct a PSK signal for Doppler shift. It changes the audio frequency of the transmitted signal to do this compensation. The program download site is http://www.frontiernet.net/~aflowers/dopplerpsk/dopplerpsk.html and it has been installed at C:UsersuserDownloadsDopplerPSK_0.2.zipDopplerPSK_0.2 on the W2MMD satellite computer.It uses Java, which has been installed (Version 8 Update 161 uninstalled, newer […]
