[amsat-bb] Re: AO-51 power up, PL test tomorrow
Hi Drew, On our clear pass south to north into ZS, at 16h07 utc, the bird was off and switched on with tone. Stayed on for 120 secs after PPT recycled. Goes off even though a tone station is busy. Works just fine ! Nice to have the higher power output from the bird. I presume this mode will save some power in swithing TX off ? 73 andre zs2bk ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: AO-51 power up, PL test tomorrow
Well, the PL mode is still off. We'll try again this afternoon. 73, Drew KO4MA Andrew Glasbrenner wrote: This evening I shut the 435.150 transmitter off and raised 435.300 to near 2 watts output. Tomorrow morning I plan to turn on the new PL routine. This improved routine will turn the downlink on with an unsquelched uplink when it hears a 67 hz tone. I plan on leaving a tail of several minutes, so the transmitter will stay on without hearing a tone for an interval of several minutes. What does this mean for the user? It would be helpful to program in a 67 hz PL tone again, but not absolutely required as long as someone else in the footprint does. It also means if you are the first person in the footprint (not very likely in North America, Europe, or Japan) you might not hear the satellite until after it hears 67hz for a few seconds. If all goes well, we'll continue this mode through the mode change Sunday night. Reports from when the downlink turns on or off would be appreciated. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: AO-51 power up, PL test tomorrow
PL is on as of about 2215Z. Before LOS I heard it drop twice for a second or two until it heard a valid tone again. This will happen about every 120 seconds. Reports are welcome, especially from remote users/areas. 73, Drew KO4MA Andrew Glasbrenner wrote: Well, the PL mode is still off. We'll try again this afternoon. 73, Drew KO4MA Andrew Glasbrenner wrote: This evening I shut the 435.150 transmitter off and raised 435.300 to near 2 watts output. Tomorrow morning I plan to turn on the new PL routine. This improved routine will turn the downlink on with an unsquelched uplink when it hears a 67 hz tone. I plan on leaving a tail of several minutes, so the transmitter will stay on without hearing a tone for an interval of several minutes. What does this mean for the user? It would be helpful to program in a 67 hz PL tone again, but not absolutely required as long as someone else in the footprint does. It also means if you are the first person in the footprint (not very likely in North America, Europe, or Japan) you might not hear the satellite until after it hears 67hz for a few seconds. If all goes well, we'll continue this mode through the mode change Sunday night. Reports from when the downlink turns on or off would be appreciated. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
