[amsat-bb] Re: Is it possible to work LEO sats (FM or SSB) with antennas in attic?
On Mon, Dec 27, 2010 at 9:59 PM, David Mennerich wrote: > I have HOA rules that prevent me from putting antennas on the roof > where I live. However, I can put antennas in the attic. I have an > Az/El setup that I could mount up in the attic, but wanted to get some > feedback from folks on any experience they've had working the LEO > satellites with antennas in the attic. > > Thanks! > - Dave N2TEB > ___ > 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 > Dave, While not optimal you should be able to have some success with this setup. Thanks, -- Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) ___ 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: Update mailing address
Nigel, Just to clear up any confusion, i mean my physical mailing address that the amsat journal and etc ship to not the email address I am registered on the list with. Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) On Mon, May 31, 2010 at 8:51 PM, Nigel Gunn G8IFF/W8IFF wrote: > You probably need to go to the address at the end of every message, > unsubscribe from the list and subscribe under your new address. > > > > On 01-Jun-10 00:41, Josh Smith wrote: > >> I recently moved and need to update my address with AMSAT. I can't find >> anywhere on the website to do this. Am I missing something? If so where >> is >> it on the site and if not what is the best procedure for doing so? >> >> Thanks, >> Josh Smith >> KD8HRX >> email/jabber: juice...@gmail.com >> phone: 304.237.9369(c) >> ___ >> >> ___ 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] Update mailing address
I recently moved and need to update my address with AMSAT. I can't find anywhere on the website to do this. Am I missing something? If so where is it on the site and if not what is the best procedure for doing so? Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) ___ 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: Starter antennas
I'll have to reiterate what others have said about having great luck using my Arrow II and a camera tripod. It works great. Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) On Wed, May 5, 2010 at 9:03 AM, John Ronan wrote: > > On 4 May 2010, at 12:56, Peter Portanova wrote: > >> Ron, >> >> I really like your message, "if it was easy it wouldn't be as fun". > > Thinking along those lines > > Speaking for a "Non" satellite station point of view. I saw on here (I > think) that the power level was going to be slightly higher for the current > schedule. I have an FT-847 and a 6m/2m/70cms omni on the roof. I also have > a 2m/70cms pre-amp near the antenna. On a pass yesterday morning, I could > hear AO-51 reasonably well (when folks weren't keying over one another) so I > dropped my call-sign into a small gap. 4 contacts later (and one on the next > pass), I'm still smiling. > > Looking for a cheap rotator now suitable to hold a small beam for VHF/UHF. > Actually I have a Mini-kits L-band LNA. Any pointers for a simple to > construct antenna? > > Regards > de John > EI7IG > ___ > 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] OT: USB - RS-232 Adapter
Everyone, I know this is slightly (mostly??) off topic but I am in the market for a USB to RS-232 adapter for use with my radios (ft-897d and th-d7ag). My main requirement be that it works with Linux. Can any of you make a recommendation? Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) ___ 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: Satellite Orbit Prediction in Python
Bryan, Thanks for the link especially to the source as I am very interested in implementing something very similar. (for my QTH of course) Thanks Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) On Mon, Sep 28, 2009 at 2:41 PM, Bryan Klofas wrote: > Hey Mark-- > > We also use pyephem for web-based pass times calculations at Cal Poly. > http://mstl.atl.calpoly.edu/~ops/passtimes/ > > Source is here, but it was written a few years back, and uses the older > (now depreciated) ephem.Body attributes. It also sometimes has trouble > with the formatting on the webpage, although that may be a firefox bug, > I'm not sure. > http://mstl.atl.calpoly.edu/~ops/passtimes/passtimes.py > -- > Bryan Klofas, KF6ZEO > > > Mark VandeWettering wrote: >> I just thought I'd drop a quick note here about some fun I've been >> having today with satellite orbit prediction in Python. When I >> started mucking around with satellites, I used "predict", which was >> pretty good, but at some point I wanted to answer some questions which >> weren't easy to answer using predict. Questions like "when will >> AO-51 be visible from both my home in CM87 and locations in Hawaii", >> or "what was the radius of the circle of visibility for AO-7 compared >> to ISS"? >> >> Luckily, I'm a programmer. In fact, I'm a programmer who programs >> for fun. So, I did a bit of research, and then coded up a version of >> G3RUH's "Plan 13" algorithm in Python, and then wrote some scripts to >> download elements from celestrak, and then a simple one to print data >> on the next pass of any named satellite. And, they worked pretty >> good. I've used them for the last year or so to do all my pass >> predictions. But there are still a couple of minor issues with the >> library. It didn't handle geosynchronous satellites very well. It >> implemented only the most basic of orbital models. I was never >> confident that the "is this satellite in eclipse" stuff working >> exactly right. >> >> Luckily though, it turns out that someone else has been busy writing a >> more complete library: PyEphem http://rhodesmill.org/pyephem/ >> >> It's a library whose primary purpose is to calculate the positions of >> astronomical objects. I've used it a couple of times to (for >> instance) figure out the size of Mars compared to Jupiter, and found >> it very easy to use. But today, I realized that it had a full >> implementation of the SGP4 and SDP4 orbital models built in, and could >> be used to predict satellite passes. As a proof of concept, I >> hacked together a 23 line script that could print the details of >> upcoming ISS passes. It seems to work great, and is really quite >> easy to use. >> >> You can find some of the simple example code at my blog: >> >> http://brainwagon.org/2009/09/27/how-to-use-python-to-predict-satellite-locations/ >> >> I'll probably be porting all of my existing scripts to use this soon. >> In the mean time, if you have a similar task, you might look to it to >> solve your custom satellite prediction problems. >> >> 73 Mark K6HX >> ___ >> 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
[amsat-bb] Re: Satellite Orbit Prediction in Python
Mark, Thanks for the link - I've been considering trying to cobble together a "web service" that will create an ical or rss feed of upcoming passes over my QTH. Hopefully this library is the kick in the rear end I need to get working on this. Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) On Mon, Sep 28, 2009 at 2:06 AM, Mark VandeWettering wrote: > I just thought I'd drop a quick note here about some fun I've been > having today with satellite orbit prediction in Python. When I > started mucking around with satellites, I used "predict", which was > pretty good, but at some point I wanted to answer some questions which > weren't easy to answer using predict. Questions like "when will > AO-51 be visible from both my home in CM87 and locations in Hawaii", > or "what was the radius of the circle of visibility for AO-7 compared > to ISS"? > > Luckily, I'm a programmer. In fact, I'm a programmer who programs > for fun. So, I did a bit of research, and then coded up a version of > G3RUH's "Plan 13" algorithm in Python, and then wrote some scripts to > download elements from celestrak, and then a simple one to print data > on the next pass of any named satellite. And, they worked pretty > good. I've used them for the last year or so to do all my pass > predictions. But there are still a couple of minor issues with the > library. It didn't handle geosynchronous satellites very well. It > implemented only the most basic of orbital models. I was never > confident that the "is this satellite in eclipse" stuff working > exactly right. > > Luckily though, it turns out that someone else has been busy writing a > more complete library: PyEphem http://rhodesmill.org/pyephem/ > > It's a library whose primary purpose is to calculate the positions of > astronomical objects. I've used it a couple of times to (for > instance) figure out the size of Mars compared to Jupiter, and found > it very easy to use. But today, I realized that it had a full > implementation of the SGP4 and SDP4 orbital models built in, and could > be used to predict satellite passes. As a proof of concept, I > hacked together a 23 line script that could print the details of > upcoming ISS passes. It seems to work great, and is really quite > easy to use. > > You can find some of the simple example code at my blog: > > http://brainwagon.org/2009/09/27/how-to-use-python-to-predict-satellite-locations/ > > I'll probably be porting all of my existing scripts to use this soon. > In the mean time, if you have a similar task, you might look to it to > solve your custom satellite prediction problems. > > 73 Mark K6HX > ___ > 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] AO-51 11:16Z Pass EM97
Is AO-51 currently operational - I wasn't able to hear anything during the 11:16Z pass over my QTH. Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments ___ 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: May AO-51 schedule
I agree with LUC it would be very interesting if the ouput power was published when it was changed. Thanks, Josh Smith KD8HRX email/jabber: juice...@gmail.com phone: 304.237.9369(c) () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments On Tue, Apr 28, 2009 at 11:11 PM, Luc Leblanc wrote: > On 28 Apr 2009 at 21:44, Andrew Glasbrenner wrote: > >> Due to rapidly increasing eclipse lengths throughout May, we need to keep >> the satellite in "normal" mode for Whole Orbit Data (WOD) collection via the >> BBS. Power output will steadily be decreased throughout the month. >> >> April 27 - May 31 >> >> FM Repeater, V/U >> Uplink: 145.920 MHz FM >> Downlink: 435.300 MHz FM >> >> 9k6 BBS and Telemetry >> Uplink: 1268.700 MHz FM >> Downlink: 435.150 MHz FM >> >> >> 73, Drew KO4MA >> AMSAT-NA VP Operations > > A good opportunity to test the receiving capabilities of our installation a > kind of ZRO test. If the power used can be publish it will be > even more interesting. > > > "-" > > > Luc Leblanc VE2DWE > Skype VE2DWE > www.qsl.net/ve2dwe > WAC BASIC CW PHONE SATELLITE > > > ___ > 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
