[amsat-bb] Re: LEO-satellites-antennas... ?

2014-01-07 Thread Francesco Messineo
Hi Pavel, On Tue, Jan 7, 2014 at 2:15 AM, Pavel Milanes Costa co...@frcuba.co.cu wrote: Yes, Omni antenna in 70cm is my head ache now, no rotor yet (arduino is on his way...) I just build a QFH + 10dB preamp on the mast and a RTL... testing it yet. I can copy FO-29 (Beacon and

[amsat-bb] Re: J-Pole Antenna

2013-05-11 Thread francesco messineo
On Sat, May 11, 2013 at 5:03 PM, Gary Joe Mayfield gary_mayfi...@hotmail.com wrote: You will be disappointed with the signals from any omni antenna with these satellites. My experience is any directional antenna BUT a couple of lindenblad give no results on these satellites. With two

[amsat-bb] NA1SS operations

2010-11-04 Thread francesco messineo
Hi all, I've seen spots in the cluster about NA1SS making contacts on VHF lately. What are the frequency for calling/listening over Europe? I already worked NA1SS some years ago in the UHF band, I would like to give it a try on VHF too. Many thanks and 73 Frank IZ8DWF

[amsat-bb] Jan 09 sat passes

2010-09-22 Thread francesco messineo
Hello all, I have a rather unusual question: can anyone tell me what satellite was visible over JM49MG around 20.20 UTC of 06 Jan 2009? I have in my log a contact via VO-52, but I received a QSL for that same contact via AO-07 orbit 56249. I tried with my predict program but with current keps it

[amsat-bb] Re: AO-7 Mode C? (Or other reason for varying signal strength?)

2010-04-07 Thread francesco messineo
Hi all, On 4/7/10, davekn...@aol.com davekn...@aol.com wrote: Bill, from my experience it happens when there are lots of high power signals pulling down the RX. this is the same experience I have. When the bird is over Africa with no stations or max one station calling in the whole

[amsat-bb] Re: Wish List, The Ideal VHF/UHF Sat Rig

2010-03-01 Thread francesco messineo
Hello, beeing an engineer (RF/telecom) and V/UHF (and sat) addicted, I'm always thinkin about this very same issue, but I think that the best RTX would come from a bunch of engineers with an open source like project, not from one of the current manufacturers. Why? First because one such rig

[amsat-bb] what did I hear?

2010-01-09 Thread francesco messineo
Hi all, I'm just listening for a SO-67 pass and the satellite seems not operational at this time (8:40 UTC) but around 435.355 MHz +/- doppler I started hearing a kind of cw telemetry in short intervals. They are 6 letter packets or so, like ISUN44. I didn't copy other packets as I was busy trying

[amsat-bb] CW anyone?

2009-07-22 Thread francesco messineo
Hello all, I'm in the middle of a short trip to IS0 land, I'm using the satellite antennas (2 x lindenblad RHCP) I made last december. Operations here can be almost all the time in CW, due to low signals obtainable with omni antennas and 20m RG-213 on both bands. During a few passes of VO-52 I