Betrieb über FM Satelliten

Immer wenn ein neuer Satellit im FM Mode verfügbar ist, kommt die Diskussion wieder in Gange, wie man diesen effizient für QSO's nutzt. Die Erfahrungen in Europa zeigen allerdings immer wieder chaotische Zustände (z.B. UO-14 -> man findet einige Beispiele auf meiner Webseite bei den einzelnen Satelliten)

img... abschreckendes, aber leider reales Beispiel, 07.08.2004, 1310 UTC über Europa

Warum herrscht bei uns eigentlich so wenig Disziplin? Es muss doch an uns selber liegen - denn auch auf Kurzwelle, im DX Pile-Up sind es immer wieder die Europäer, die einen schlechten Ruf haben. Liegt es nur an der Mentalität der Südeuropäer oder an der Leistung der Osteuropäer?

Gerade wieder angeregt durch einen Beitrag von Ib (OZ1MY) und Tony, VK3JED im AMSAT-BB möchte ich meine eigenen Erfahrungen und Hinweise noch einmal überarbeiten und ergänzen.

Die erste und goldene Regel lautet - erst hören, dann senden !

Vielleicht lassen wir uns von dem "täglichem Chaos" nicht einfangen und versuchen durch unsere Betriebstechnik ein wenig mehr Disziplin vorzumachen. Es ist schwer, aber wir sollten es probieren - auch wenn der Finger an der Mikrofontaste krabbelt, der Leistungsregler noch nicht am Anschlag ist und man schon die Augen verdreht, wenn der Name zum drittenmal wiederholt wird -> DISZIPLIN

Vielleicht gelingt es uns dann, die vorhandenen FM Satelliten so zu nutzen, wie man es erfolgreich über die verfügbaren SSB Transponder längst praktiziert.

img... QSO zwischen I1LJV und GB5OSO, 19.10.2007, 1535 UTC [AO-27]

Leider konnte ich mir nicht verkneifen, dieses QSO hier als Beispiel zu zeigen. Wenn jede Station so eine Betriebstechnik an den Tag liegt, hat kein anderer eine Chance, ein QSO zu fahren. Uplink-Leistung ist eben nicht alles [irgendwie erinnert mich das etwas an Kurzwelle] - auch hier gibt es Krokodile. Während gute OPs ca. 20 Sekunden für ein QSO benötigen, sind es hier 5 Minuten. Ola, ola, oooooola...




In 17 years of satellite operating - and literally thousands of QSO's, I'm proud of the fact that I have actually had 2 - (that's two, folks) - QSO's on FM. I believe the last one was W3SM/OE on AO-27 about 10 years ago. For want of something better to do today I went outside with my arrow aerial, a MYCOM handheld scanner and a little IC-E91 (also handheld) to have a listen to AO-51 ... (I've heard it described as a "zoo"). I monitored the 16:15Z pass over Russia/LA/Europe/UK and what I heard can only be described as the worst operating I've heard in 41 years of radio. There were stations battling it out with the mine's bigger than yours mentality, stations "hogging" it, constantly calling CQ, CQ, CQ, CQ, CQ, CQ, CQ, CQ, CQ, CQ ... pause for breath ... CQ, CQ, CQ, CQ, CQ, CQ, CQ, CQ, CQ ... (no callsign given but obviously a Russian station), Several stations replied to this gentleman but he was obviously *NOT* hearing them. There was the 'obligatory' awwwwwla, awwwwwla, awwwwwla, awwwwwwla - (the mic-shy gentleman who can't find his downlink).
(Don't these clowns have receivers ??.....LA2QAA)
AO-51, what a wonderful resource for showing the non-amateur listeners that these operators are fully competant to operate an emergency network like the one mentioned planned for Intelsat.
I'm absolutely convinced !!! Intelsat will welcome such operating with open arms!. My (non-amateur) neighbour's immediate comment was - "I'm glad my !!! life doesn't depend on you lot, it sounds like a fox loose in a henhouse". I'm ashamed to say, I absolutely agree with him. I also sincerely hope that the standard of operating (read: disipline/ proceedure) is better in North America than it is in Europe - actually, I've listened via N1DID and Echolink, as well as the promo video so I know it is.
73 John, LA2QAA [AMSAT-BB am 14.05.2008]

Good afternoon, During the last AO-91 pass, there were many interesting stations on, but in particular there were two low power rovers in rare grids: FG8OJ was in FK95 and C6AWD/MM (AC0RA) was in FL25 (an entirely wet grid that the ship will only be in for a short period of time). Yet, even while those two were in the footprint, stations were calling other fixed stations that they can work on any pass of any satellite, day or night. Right now, we have 14 satellites where you can make a QSO with a guy next door. There's no need to work a hundred stations on every pass of AO-91, especially when two guys in rare grids with low power equipment are attempting to hand them out. It's all about situational awareness. Pay attention to what grid ops are going to be on a pass (monitoring Twitter, Facebook, and the BB prior to a pass are handy for this), listen before you transmit, noting anything that seems rare, and wait to make other QSOs until the rare stations are out of the footprint. And please don't keep calling stations when they are out of the footprint. Learn your geography and/or look at a map, please! This is how I approached the pass: From monitoring Twitter, I was well aware that there would be two rare rovers on (the two I mentioned before). I did not need FG8OJ in FK95, so I did not call him. However, FL25 is a hole in my map. When I heard C6AWD/MM in FL25, I made my call, worked him, and then didn't attempt any more QSOs until he was out of the footprint (this included not responding to a person that called me). I know this is not the first time this topic has been raised, but behavior has been especially terrible since the launch of AO-91. Eventually, I and others will be forced to name and shame stations engaged in poor behavior. FM satellites are wonderful in that the simple, inexpensive equipment required to work them opens up the amateur satellite hobby to a large number of people. However, since they are a single channel covering a wide area, they also demand a good amount of situational awareness and courtesy when operating. 73, Paul, N8HM [AMSAT-BB am 10.12.2017]