Hi again.
For the ICOM IC706 in CW mode with internal preamp on:
The S4 reading equates to -117dBm The S5 reading is -115dBm
6m of RG58 is 0.95dB at 145MHz
Antenna gain is about +8dBi
Off pointing loss is about 2dB
Range for these signals was closer to 1500km
Have fun with the path loss equations.
Regards
David G0MRF
-----Original Message----- From: Nick Pugh K5QXJ [email protected] To: g0mrf [email protected]; amsat-bb [email protected] CC: cape [email protected] Sent: Mon, 2 Dec 2013 14:52 Subject: RE: CAPE-2 CW over Brazil
Tnx David for the report If you have a TNC we would like to get the AX.25 data. If you like we have ground station software. Do you have any idea how strong s-4 is in mv or dmb? Also what set of TLE are you using?
nick
From: [email protected] [mailto:[email protected]] Sent: Monday, December 02, 2013 7:31 AM To: [email protected]; [email protected] Cc: [email protected] Subject: Re: CAPE-2 CW over Brazil
Hi Nick.
I've just loaded the latest set of keps for CAPE 2 and have managed to receive a signal at the first attempt from the right direction / frequency and time.
The pass was at 12.30UTC when the satellite was within range of London.
I was listening in USB to try and detect weak signals. However, not necessary as the signal was quite good (about 'S4')
CW at 12.32. Frequency pulling as the CW was keying. best freq 145.823
Then at 12.36 some stronger FM. (shame I was still in USB) Best frequency 145.822 (SSB)
As I'm at 51 degrees North the highest pass I see is about 17 degrees elevation.
The range today was about 1450km.
The satellite appeared to 'peak' a couple of minutes later than I expected.
4 element horizontal yagi pointed south and at 25 degrees elevation. ICOM IC 706 with 6m of RG58 and no preamp.
I'll have a try at the next pass, but I can't find anything on the CAPE website which describes the sequence or timing of the transmissions. If you can send a link for this info and I'll be able to anticipate the timings and modes.
Thanks
David G0MRF (FUNcube team)
-----Original Message----- From: Nick Pugh K5QXJ [email protected] To: 'Roland Zurmely' [email protected]; 'AMSAT' [email protected] CC: 'UL CAPE Mailing List' [email protected] Sent: Mon, 2 Dec 2013 10:09 Subject: [amsat-bb] Re: CAPE-2 CW over Brazil
Hi Roland We thank you for the data. You are copying our sat better than we are. We would like you to perhaps command our sat to do a data dump. If you have a tnc we will send you the software to command a data dump. I am also like to know what type of antenna and receiver you are using and what the idle noise when you point your antenna to cold sky.
Thanks
nick ARS K5QXJ EM30xa 30.1N 92.1W Office 337 593 8700 Cell 337 258 2527
Helping UL become a world Class Engineering and Educational School
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Zurmely Sent: Sunday, December 01, 2013 5:31 AM To: AMSAT Subject: [amsat-bb] CAPE-2 CW over Brazil
http://www.qsl.net/py4zbz/cape.htm
73 de Roland PY4ZBZ _______________________________________________ Sent via [email protected]. 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 [email protected]. 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