[amsat-bb] Re: Stealth Satellite Station?
On Thu, Oct 29, 2009 at 2:57 AM, Tim Goodrich t...@timgoodrich.net wrote: Build a 2m and 70cm Quadrifilar Helix- they'll give you coverage virtually horizon to horizon. Stick them on the roof by using a number of hose clamps to attach the PVC mast to one of the roof's metal plumbing vent pipes (not a gas exhaust or anything with hot air). Low profile, completely temporary, and good coverage. Tim KI6VBY Tim's idea is a fine one. Alternatively, you could use AA2TX's lindenblad designs. You can even get away with a simple groundplane bolted onto a female bulkhead N-connector. In all these cases, though, the most important addition to your setup, especially on 70cm, will be a low-noise preamp which is connected to the antenna by a short run of very low-loss coax, such as LMR400. Finally, as for hand-held use, have you tried operating your ht with hand-held yagi indoors as if you were out-of-doors? Depending on the sort of building you live in, this can work fairly well. 73, Bruce http://ve9qrp.blogspot.com ___ 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: Stealth Satellite Station?
Yes, height is NOT important. I would only go as high as needed to clear the ground when the antenna is elevated. My first antenna for the birds ( Old birds Oscar 7 etc. ) was a 3 element 2 meter quad. Small compact and it sat inside my house right next to me on a camera tripod. and just twisted it by arm. Worked GREAT! The next day I even worked someone in Arkansas from here in Wisconsin. Joe WB9SBD -- Idle-Tyme The Original Rolling Ball Clock http://www.idle-tyme.com David Wing wrote: Are you able to put up a temporary mast of modest height? I've used a 2 foot section of fence pipe in a bucket of quickcrete as a base and then use a smaller diameter of fence pipe to slide into the piece that is held in the bucket of cement. I've gone as high as 30' with this kind of set-up by putting it next to a pillar, strapping it to the pillar with a truck load strap and then guying it with rope (this is how I put up my 6M summertime set-up...worked great). You certainly don't need to go 30'...12 or 15' might be just fine. If the landlord could see that it's not being bolted to his property and is basically a portable set-up, he might be a lot more open to it. In fact, I wouldn't even ask him. If you're not attaching it to his house and there are no restrictions to an antenna in the back-yard, go for it. -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Kent Frazier Sent: Wednesday, October 28, 2009 6:03 PM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Stealth Satellite Station? I currently live in a rental house and an outside antenna is out of the question. I asked about putting up a satellite TV dish at my own expense last year and received and flat out NO. So, my current options are as follows: 1. Going out to my car and working the FM birds with my Icom 2720H and 19 whip. 2. Working the FM birds from the back/front yard or possibly inside the house with my Icom W32A and Elk LP antenna. 3. Setting up my 2720 in the house with some sort of stealth antenna and give a try at satellite APRS. Obviously options 1 and 3 still allow for option 2. Has anyone tried any form of stealth antenna for Satellites. I am really interested in the idea of combining the satellites and aprs together. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.37/2466 - Release Date: 10/28/09 19:39:00 ___ 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: Stealth Satellite Station?
Are you able to put up a temporary mast of modest height? I've used a 2 foot section of fence pipe in a bucket of quickcrete as a base and then use a smaller diameter of fence pipe to slide into the piece that is held in the bucket of cement. I've gone as high as 30' with this kind of set-up by putting it next to a pillar, strapping it to the pillar with a truck load strap and then guying it with rope (this is how I put up my 6M summertime set-up...worked great). You certainly don't need to go 30'...12 or 15' might be just fine. If the landlord could see that it's not being bolted to his property and is basically a portable set-up, he might be a lot more open to it. In fact, I wouldn't even ask him. If you're not attaching it to his house and there are no restrictions to an antenna in the back-yard, go for it. -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Kent Frazier Sent: Wednesday, October 28, 2009 6:03 PM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Stealth Satellite Station? I currently live in a rental house and an outside antenna is out of the question. I asked about putting up a satellite TV dish at my own expense last year and received and flat out NO. So, my current options are as follows: 1. Going out to my car and working the FM birds with my Icom 2720H and 19 whip. 2. Working the FM birds from the back/front yard or possibly inside the house with my Icom W32A and Elk LP antenna. 3. Setting up my 2720 in the house with some sort of stealth antenna and give a try at satellite APRS. Obviously options 1 and 3 still allow for option 2. Has anyone tried any form of stealth antenna for Satellites. I am really interested in the idea of combining the satellites and aprs together. -- Kent R Frazier, K5KNT AMSAT #36765, ARRL, San Angelo Amateur Radio Club, Tom Green County - ARES Sent from San Angelo, TX, United States ___ 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
