Tag Archives: DB0LTG

Presentation “Let´s Bounce” IIa

Last night, when I was going to switch off all the stuff in my shack, I saw an email from Malte, DE7LMS. I opened it and found a link to a video he recorded of my recent presentation in Weinheim.

My new beacon list

Tonight I created a new list of all beacons, I have been able to receive here in Mainz (JN49CV) on 23 cm and 13 cm since becoming QRV again in 2011.

It can be found here.

Beacon check

There are some beacons I am used to check whenever I am in my shack. One of them is quite a special one: DB0LTG on 1296,745 MHz.

This beacon provides a very stable signal of normally 40 dB, usable for antenna calibration, especially when the sun isn´t available at night time. On the other hand the beacon is part of a linear transponder located on the Unnenberg near Gummersbach, Germany. The input is in the 432 MHz band and the output in the 1296 MHz band. In my SDR I can even see the noise floor of the transponder next to the beacon.

DB0LTG

DB0LTG with noisefloor

When talking about the transponder, Rudi, OE5VRL/5 was the only one I worked on it until now. We had big fun in performing a QSO via DB0LTG in October 2012 when conditions allowed such a crazy test. While performing my daily beacon check tonight, I noticed some SSB signals on the transponder. So I prepared my (poor) 70 cm equipment and set it to the input frequency. My first call was heard and so I enjoyed chatting to the guys who were initially setting up and now using this nice toy every Wednesday night.

By the way: The distance from Mainz to Gummersbach is 135 km. For details of transponder and beacon visit the website of DB0LTG.