[amsat-bb] Re: QSO on AO7
Good job Luis. Thanks again for the FB QSO. You have excellent operating skills. It was great fun. 73. Long live AO-07 LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 - Original Message - From: Luis Quintas lu6quin...@gmail.com To: amsat-bb@amsat.org Amsat-BB@amsat.org Sent: Wednesday, June 22, 2011 07:55 PM Subject: [amsat-bb] QSO on AO7 I Tnx Louis (KD5GM) for QSO on CW on AO7 Mode B, June 22 at 23.33 Z, Orbit 67507 (EL29KQ - - FF66TQ, 7631 km). QRV for others QSOs attempts via AO7. --luis LU6QI ___ Sent via AMSAT-BB@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-BB@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] AO-51 L/U
In the scheme of things, will AO-51 be in L/U voice mode anytime soon? If so has those UP and Down link frequencies changed? Thanks, LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 ___ Sent via AMSAT-BB@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: AMSAT-BB Digest, Vol 6, Issue 151
- Original Message - From: amsat-bb-requ...@amsat.org To: amsat-bb@amsat.org Sent: Saturday, March 12, 2011 10:56 PM Subject: AMSAT-BB Digest, Vol 6, Issue 151 LOUIS, KD5GM in EL29kq Bill, I have on several occasions, while I am listening to my own signals (in CW) on the SAT's AO-07, FO-29 and VO-52, when they are LOS to the North of the US and have copied the signals down to -6 degrees on nights that there have Aurora alerts posted from several reflectors that I subscribe to. Most of the time my Northern LOS for these birds is 1 to 2 degrees when there are no alerts. Certainly no expert on this phenomenon, but I believe that the signals are enhanced beyond the normal range during the enhancement conditions. 73, Louis CW, The original digital mode AMSAT #37061: FIST #3606 - Original Message - From: Bill Dzurilla billdz@yahoo.com To: amsat-bb@amsat.org Sent: Sunday, March 13, 2011 12:25 AM Subject: [amsat-bb] Is it 100% impossible to work a satellite below thehorizon? I was giving a presentation at our club meeting called Working DX on the Satellites and afterwards someone had a good question: is it at all possible that tropo, skip, or other form of enhanced propagation can enable a contact via a satellite below the horizon? It has never happened to me. Has it ever happened? 73, Bill NZ5N ___ Sent via AMSAT-BB@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: Considerate satellite operations behavior.
I agree totally! about 90% of my VO-52 passes have no one on the band. 52 is good and strong nearly all of the time, sometimes even as low as -2 degrees at aos/los. 72 louis kd5gm CW, the original digital Message: 1 Date: Tue, 22 Feb 2011 08:42:24 -0500 From: Bill Gillenwater gil...@pa.net Subject: [amsat-bb] Re: Considerate satellite operations behavior. To: John Geiger aa...@fidmail.com, i8cvs domenico.i8...@tin.it, Amsat - BBs amsat-bb@amsat.org Message-ID: 36B1661D56DC4A6ABE981BDFE97306B5@billpc Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Just worked a pass of VO-52, only two signals heard calling CQ and I was calling on CW. Plenty of room for more activity. 73 Bill K3SV - Original Message - From: John Geiger aa...@fidmail.com To: i8cvs domenico.i8...@tin.it; Amsat - BBs amsat-bb@amsat.org; Vince Fiscus, KB7ADL vlfis...@mcn.net Sent: Tuesday, February 22, 2011 8:28 PM Subject: [amsat-bb] Re: Considerate satellite operations behavior. If you don't like the FM satellites, instead of complaining that we need more linear satellites (like I have seen suggested), HOW ABOUT USING THE ONES WE HAVE?? VO52 is an excellent satellite and it is hardly overcrowded, at least in the US. Many times there is only one or two stations on it. 73s John AA5JG ___ Sent via AMSAT-BB@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] AMSAT-BB Rotor Interface Yaesu 5500 Digest, Vol 6, Issue 45
Hi Bill, I am using the LVB tracker with the G-5500 and controlling them with the SatPC-32 software. My experience with this system has been very pleasing, straight forward and plug play. The documentation for the LVB is excellent and the same is true for SatPC-32. Setting the calibration between the LVB and the G-5500 was a snap, with very easy to follow instructions. Supporting AMSAT by purchasing the LVB is icing on the cake. My 2 cents. Best wishes, LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 Message: 18 Date: Sat, 22 Jan 2011 10:20:10 -0500 From: Bill Gillenwater k...@pa.net Subject: [amsat-bb] Rotor Interface Yaesu 5500 To: AmsatBBS amsat-bb@amsat.org Message-ID: 5E846EAFD8F649CCAAB7FD2B51A8@billpc Content-Type: text/plain; charset=iso-8859-1 OK, a newbee question about interfacing rotors. I have a Yaesu 5500 and I run PCSat32. What do I need between the rotor and the computer? I would like a few options. Do I need the Yaesu 232 interface box or will a generic box do the job. If a generic box will work, which are the best for satellite work with PCSat32? Tnx 73 Bill K3SV ___ Sent via AMSAT-BB@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-BB@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: Tone interference
Hi Dave, Thanks for your input to my problem. I will break out the prints and start looking for any signs of instability in the power supply filtering. If I can figure it out I will let you know how it turns out. Thanks again.. LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 - Original Message - From: David Palmer d...@zdap.com To: Louis House, KD5GM kd...@sbcglobal.net Cc: amsat-bb@amsat.org Sent: Thursday, January 20, 2011 04:31 PM Subject: Re: [amsat-bb] Tone interference Hi Louis, I have seen a few (rare) postings about the LM7806 voltage regulator in the G-5500 not having enough bypass output filtration, and thus becoming unstable. Reportedly the '7806 regulator needs a 0.1 uF output capacitor for stability, and the G-5500 uses a 0.01 uF cap instead. An unstable regulator can either generate RF noise (as you describe) or the voltage output can become inaccurate as the system warms up, leading to subtle (less than 10 degree) positioning errors. For example: http://www.mail-archive.com/amsat-bb@amsat.org/msg01702.html I was noticing a slight drift in my display readings as my '5500 warmed up, so I checked the ouput of the 7806 in mine with a scope and saw it was oscillating (about 200 mV at 5 MHz). I simply soldered a 0.1 uF tantalum capacitor, in parallel, to the leads of the exisiting (0.01 uF) cap ... and that removed the oscillation entirely. Meters then had nice stable readings after that too. I never noticed RF noise, but the fix should be the same for both. Hope this helps, 73 de Dave KB5WIA / CM88 AMSAT #38466 I have discovered a pulsating tone (about 600 HZ) in my 910H receiver when I am tuned to 145.900 MHz (working the Linear birds VO-52 etc). The tone stops when I power off the G-5500/LVB tracker. All equipment is grounded and ferrite core filters are on all of the cables to solve this problem. Aside from moving all equipment across the room from each other, what might I be missing? Any help will be appreciated Thanks, LOUIS, KD5GM in EL29kq ___ Sent via AMSAT-BB@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] Tone interference
I have discovered a pulsating tone (about 600 HZ) in my 910H receiver when I am tuned to 145.900 MHz (working the Linear birds VO-52 etc). The tone stops when I power off the G-5500/LVB tracker. All equipment is grounded and ferrite core filters are on all of the cables to solve this problem. Aside from moving all equipment across the room from each other, what might I be missing? Any help will be appreciated Thanks, LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 ___ Sent via AMSAT-BB@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] 2 meter CP yagi tunning.
I have a 2 meter cross polarized yagi array. Not sure of the make, possibly a Cushcraft. The driven elements are folded dipoles and the measured SWR is currently 1.5:1 (most resonant) at the uplink frequencies for the birds. Since there is no mechanical matching device, how does one tune for the lowest SWR?? The coaxial baluns and the antenna are in good condition and look to be original, The matching transformer is a small barrel type and is also in good condition. Certainly the !.5:1 SWR is usable and with a preamp signals will be good most of the time. But the current value is like a Nat.. it bugs me. Any assistance or direction to other documentation ( exhausted the web) would be much appreciated. Off the BBS replies will be fine as it will keep the daily listings shorter. Thanks, kd...@amsat.org LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061, Member ARRL, B-VARC LIFE Member A-1 Operator, ARRL VE, ARRL PSH, FIST #3606 ___ 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: VO-52
Message: 2 Date: Fri, 11 Jun 2010 18:41:37 -0700 From: Clint Bradford clintbradf...@mac.com Subject: [amsat-bb] VO-52 - OK to Work in FM? To: AMSAT BB amsat-bb@amsat.org Message-ID: 783B57E0-1B8C-4F72-A695-acd09e6ae...@mac.com Content-Type: text/plain; charset=us-ascii The Bengal ham club posted about five years ago instructions for working V)-52 in FM mode. Is that still OK to do? HAMSAT or VO-52 is a satellite intended for SSB/CW operation. However as in VU land very few of us can afford multimode VHF/UHF radios we are accessing Hamsat on FM for which it is best to stick to the centre frequencies (435.250 uplink and 145.900 downlink). It is also best to simultaneously monitor your own signals on the downlink using a separate radio. Hamsat requires around 100 watt ERP for solid 59 signals. So if you are using 10 watts RF the recommended antenna gain is around 10 db. However Hamsat or VO-52 have been accessed on high elevation passes using 25 watts ERP. If you want to use omni directional antennas you can build a turnstile or an eggbeater antenna which has a dome shaped radiation pattern with circular polarisation. Separate 10 element UHF and 5 element VHF crossed yagis with circular .polarisation would give excellent results. Only keep the transmission line loss (particularly on UHF) minimum. Use hardline CATV cable if transmission line is more than! 100 feet. Otherwise if you use RG-213 keep the feeder length to around 20 - 30 feet. I have been using a handheld arrow yagi antenna with RG-58U cable of around 1 meter length. Doppler compensation is needed particularly on the UHF uplink where the signal will shift a round 10 KHz. So for the uplink it is best to start from 435.240 MHz during AOS and end at 435.260 MHz at LOS and on the downlink start receiving 5 KHz up at 145.905 MHz and end at 145.895 MHz. Currently the VU transponder is on and it has a beacon (continuous carrier) on 145.936 MHz though we have not yet r eceived the beacon from Calcutta / Kolkata. Clint, K6LCS It is very exciting to work VO-52 in the CW mode. She is a strong bird and hears well. I work her often on only 2 watts CW and a 12 dbi gain vertical yagi on the uplink and 10d bi for the V down link and can hear her down to about 5 degrees on most passes. LOUIS, KD5GM CW, The original digital mode ___ 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] ISS
Running SatPC32 here and am wondering how to configure the SQF files to drive the IC910H for the ISS. Since most of the ISS frequencies are 2M/2M (up and down links), will the software control for this V/V mode or does one have to do the manual operation for the ISS? Thanks LOUIS, KD5GM CW, The original digital mode ___ 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] Antenna setup
Hi Jacob, From my point of view and short time experience, The description of your proposed set up would yield favorable results. I am using an 11 element 2m yagi and a 432 16 element both mounted vertically (with az/el). most of my worked passes are in the 10 to 35 degree range and the signals are fairly good and readable most of the time. Working the Birds without optimum conditions is still a ton of fun. 73 LOUIS, KD5GM CW, The original digital mode Message: 7 Date: Thu, 11 Mar 2010 20:32:20 -0500 From: Jacob Tennant k8...@comcast.net Subject: [amsat-bb] Antenna setup To: Amsat BB AMSAT-BB@amsat.org Message-ID: 01cac183$dbfd2f40$93f78d...@net Content-Type: text/plain; charset=us-ascii Hello everyone, I have a antenna setup question as I am new to satellite operations so please bear with me... I have a 2meter beam and a 70cm beam from my former adventures into VHF weak signal operations and was wondering about using them for satellite work. Was thinking that since I don't have a az/el rotator yet, if I set them up on a single cross-boom with the TV rotator I have now, angle them with the elements at 45 degree angles and the booms angled 30 to 40 degrees front end up I might be able to get some decent ability into the FM satellites (AO51, SO50, AO27, ISS). I already have the good coax for them (LMR-400) and a duplexor for my FT-857D. Was going to try to install the antennas on top of my storage building with a height of approx. 16 feet. That's the highest structure I can get onto that belongs to me. Any alternate ideas or advice is always welcome as I said before this is all new to me. Jacob Tennant - K8JWT Morgantown,WV FM09ap ___ 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: ND9M Road Trip Update #19
It was a great pleasure to meet You and Cori at the B-VARC, Greater Houston Hamfest. Thanks for sharing your road trip in the grids as you travel. Best wishes and safe travels. Louis, KD5GM CW, The original digital mode. ___ 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: How to add Moon Keps to SatPC32
Simply fascinating, Thank you gentlemen for the great information. CW, The original digital mode LOUIS, KD5GM Message: 2 Date: Wed, 17 Feb 2010 12:35:27 -0800 From: Wayne Estes w...@charter.net Subject: [amsat-bb] Re: How to add Moon Keps to SatPC32 To: amsat-bb@amsat.org Message-ID: 4b7c530f.7010...@charter.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Mark Hammond wrote: SatPC32 has a special program for the Sun and Moon. It's called SuM. You can find it under the Start/Programs button, with the SatPC32 programs. Wayne replies: The separate SuM program controls rotors and displays the moon's az/el, but it doesn't display the moon's visibility footprint on a world map. I can see how EME operators would want Moon Keps in the main SatPC32 program in order to see the moon's visibility footprint. Wayne Estes W9AE Oakland, Oregon, USA, XCN83ik -- Message: 3 Date: Wed, 17 Feb 2010 17:21:30 EST From: mlengrues...@aol.com Subject: [amsat-bb] Re: How to add Moon Keps to SatPC32 To: w...@charter.net, amsat-bb@amsat.org Message-ID: 16174.19d6c949.38adc...@aol.com Content-Type: text/plain; charset=us-ascii Hi all. to work with planets in main SatPC32 with footprints, create this 2 files below. select in main menue bottom satellite , group , planets ok and work like normal satellites C:\Dokumente und Einstellungen\admin\Anwendungsdaten\SatPC32\Kepler\moon.txt C:\dokuments and adjustments\admin\userdata\SatPC32\Keps\moon.txt C:\Dokumente und Einstellungen\admin\Anwendungsdaten\SatPC32\planets.SAT C:\dokuments and adjustments\admin\userdata\SatPC32\planets.SAT moon.text file: MOON 1 0U 0A 10019.90529622 . 0-0 0-0 0 0004 2 0 25.1631 348.5977 0637000 142.8591 221.8486 00.0366009966 planets.SAT file: MOON + 73 Michael, DD5ER Amsat - DL -- ___ 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
