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HITSAT - Object F not J
by Colin Hurst 05 Oct '06

05 Oct '06

Further to my previous post, where I inadvertently quoted Object J, it is more likely Object F, as pointed out by Mike DW3WN. On inspection the set I have been using is indeed Object F. Cannot understand how I transposed them, maybe another Senior's Moment. Apologies for any inconvenience. Colin VK5HI.

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Re: Solution for Cordless phone QRM
by John Champa 05 Oct '06

05 Oct '06

Yes, Tony's suggestion is the best. Get Part 15 off all the Ham Bands! >From: Tony Langdon <vk3jed(a)gmail.com> >To: "J. Moen" <jmm(a)jwmoen.com>, amsat-bb(a)amsat.org >Subject: [amsat-bb] Re: Solution for Cordless phone QRM >Date: Fri, 06 Oct 2006 07:16:50 +1000 > >At 05:40 AM 10/6/2006, J. Moen wrote: > > >But it is good to know about the DECT 6.0 1920-1930 Mhz phones. Thanks > >for the information. > >DECT phones work well as phones, as well as playing nice with ham and >consumer gear. I use one myself. > >73 de VK3JED >http://vkradio.com > >_______________________________________________ >Sent via AMSAT-BB(a)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

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(no subject)
by David J 05 Oct '06

05 Oct '06

The Florida AMSAT Net will meet this Thursday evening at the usual time of 19:30 ET, 23:30 UTC on the West Florida Group Ni4CE repeater system, the Orlando N4HHA repeater at 443.1 MHz, 103.5Hz tone, the N4LEM Cocoa repeater, 147.36 MHz +107.2 PL or connect by echolink to KG4YZY-R. The net's purpose is to provide a platform for hams with amateur satellite interest to meet and discuss topics of interest. All amateurs are invited to check in. K04MA will be the net control for this session. Dave, AA4KN

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Re: Solution for Cordless phone QRM
by Tony Langdon 05 Oct '06

05 Oct '06

At 05:40 AM 10/6/2006, J. Moen wrote: >But it is good to know about the DECT 6.0 1920-1930 Mhz phones. Thanks >for the information. DECT phones work well as phones, as well as playing nice with ham and consumer gear. I use one myself. 73 de VK3JED http://vkradio.com

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Re: Solution for Cordless phone QRM
by John Champa 05 Oct '06

05 Oct '06

Alan, I have a 900 MHz cordless phone I bought from Radio Shack last year, so they must still be making them. It is Model 43-3870. We have 440 and 1200 MHz Amateur repeaters here, but nothing on 900 MHz to mess up. And, this phone doesn't bother my WiFi or HSMM DXing activities (both are 802.11g modulation), so it should work well on Mode L/S, which I hope to use someday! Thanks and 73, John - K8OCL >From: "Alan P. Biddle" <APBIDDLE(a)mailaps.org> >Reply-To: APBIDDLE(a)mailaps.org >To: <amsat-bb(a)amsat.org> >Subject: [amsat-bb] Re: Solution for Cordless phone QRM >Date: Thu, 5 Oct 2006 20:27:49 -0000 > >At one time, they made some 900 MHz phones. I have a couple, and they work >very well with good range and clarity, and of course no interference. >Google turns up many references, but mostly at eBay and similar >discounters. >Anybody know if they are still made? > >Alan >WA4SCA > > >_______________________________________________ >Sent via AMSAT-BB(a)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

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Ofcom Put New UK Amateur Licence Regs Sample Doc on Website
by Trevor 05 Oct '06

05 Oct '06

Ofcom have issued on their website a sample of the new UK Amateur Radio licence regulations which give UK Foundation holders access to the Amateur Satellite Service. See http://www.uk.amsat.org/ The new regs may come into force from 1st December. 73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org News On Your Website: http://www.southgatearc.org/rss/index.htm News On Your PC: http://www.southgatearc.org/rss/newsreader.htm Upload Your News: http://www.southgatearc.org/news/your_news.htm --------------- ___________________________________________________________ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html

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... Err!, an observation.
by john hackett 05 Oct '06

05 Oct '06

Hello Folks, As we all know (or assumed), AO-7's battery system has been down the tube for a couple of decades. However, this morning I got quite a surprise. I always monitor the old girl before actually *bellowing* into the microphone. As is my want, I was watching both InstantTRACK and NOVA on seperate computers (and before you comment, my keps are! correct and up to date). The satellite came up over Northern Russia at 09:58 UTC on the 45926 orbit and was in complete darkness at that time but just for a laugh I sent a few CQ's on CW (432.150 up 145.941 down) and to my surprise I copied LA2QAA calling CQ - (that's me folks). Thinks ... "This can't be, the batteries are knackered". This instigated careful checks of time (Atomtime Pro), keps & doppler - no doubt - (both InstantTRACK and Nova agreed) - AO-7 was in darkness but I was able to copy my downlink at S3. A few minutes later, when the old girl came into sunlight my signal shot up to S8. Careful checks of my hearing and senility confirmed that both are! functioning correctly. So ... how come I could hear myself when AO-7 was in darkness?. As can be imagined, I will keep tabs on this tomorrow morning. Sensible explanations please written on the back of a clean $100 bill wrapped round a wallbrick and chucked through my window - or - an e-mail to <la2qaa(a)amsat.org> at a pinch, will suffice 73 John.

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Re: S band interference solution
by John Champa 05 Oct '06

05 Oct '06

Bob, You are NEVER going to hear your neighbor's WiFi @ 10 miles! Come on, Bob! I have experienced this near / far phenomenon of which you write many times It is something in the RF environment with which we need to learn to deal. I work in a location where I normally monitor 40 -60 WiFi devices at the same time, yet I manage to get a signal through such nasty terrain. A hand-full of neighbors wouldn't make me completely re-design an OSCAR and drop an entire transponder! You must be one of those pessimist we were writing about earlier. Put the math aside and go out to your front yard and meet those fine WiFi folks! (HI) Vy 73, John Champa - K8OCL Former Executive VP - AMSAT >From: "Robert Bruninga" <bruninga(a)usna.edu> >Reply-To: bruninga(a)usna.edu >To: <AMSAT-BB(a)amsat.org> >Subject: [amsat-bb] Re: S band interference solution >Date: Thu, 5 Oct 2006 15:28:09 -0400 > > > > These are 100 mW devices...maximum! That means they have > > > to be relatively close to your QTH for you to hear them. > >Two big words there. "Relateively" and "close"... > >The laws of physics trumps all opinions... > >All of these give the SAME power at your antenna: > - A 100mW device at 1 mile > - A 10 W device at 10 miles > - a 1000W device at 100 miles. > >Or this one: > - A 100 mW device at 10 miles > - A 10 Watt device at 100 miles > - A 1000W device at 1000 miles LEO > - A 400 Kw device at 20,000 miles GEO orbit > >Now our birds do not have 400 Kw to downlink at S-band to >overcome >Your neighbor's WIFI at 10 miles away. > >Even if you throw away 30 dB of antenna gain (the neighbor will >not be in you main lobe, this then makes the 400W Satellite >coming in your MAIN beam no stronger than a neighbor at 10 miles >away with a 100mw device coming in the back of your dish. > >Yes, it is only 100 mW, but when it is 20,000 times closer, it >is 400,000,000 times stronger. > >De WB4APR, Bob > >_______________________________________________ >Sent via AMSAT-BB(a)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

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Solution for Cordless phone QRM
by D Carlisle 05 Oct '06

05 Oct '06

If you want to avoid interference to the 902MHz, 2.4GHz, and 5.8GHz ham bands when using a cordless phone, then look for a DECT 6.0 model. This was authorized earlier this year by the FCC in the Unlicensed PCS band from 1920-1930 MHz. http://www.dect.org/content.aspx?newsartikel=news15 Even Wal*Wart has them. I saw two different models at the local store. They were specifically made to address the complaints by consumers that the 2.4GHz and 5.8Ghz cordless phones trash their home wireless networks. 73, Dan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Re: Solution for Cordless phone QRM
by J. Moen 05 Oct '06

05 Oct '06

Most home wireless networks use 802.11g or the older 802.11b. Both of these are in the 2.4Ghz band, so moving to a 5.8Ghz cordless phone does solve the interference problem. A few people have purchased equipment using 802.11a. This is on 5.8Ghz but did not become as popular as 802.11b/g. So for most people, replacing their 2.4 cordless phones with 5.8 will do the trick. Of course, microwaves are on 2.4 Ghz also. I solved the microwave problem by getting directional antennas so the 802.11g signals were just too strong to be bothered by the microwave. But it is good to know about the DECT 6.0 1920-1930 Mhz phones. Thanks for the information. Jim - K0ZXU -------- Original Message -------- Subject: [amsat-bb] Solution for Cordless phone QRM From: D Carlisle <w0uhf(a)yahoo.com> Date: Thu, October 05, 2006 11:40 am To: amsat-bb(a)amsat.org If you want to avoid interference to the 902MHz, 2.4GHz, and 5.8GHz ham bands when using a cordless phone, then look for a DECT 6.0 model. This was authorized earlier this year by the FCC in the Unlicensed PCS band from 1920-1930 MHz. http://www.dect.org/content.aspx?newsartikel=news15 Even Wal*Wart has them. I saw two different models at the local store. They were specifically made to address the complaints by consumers that the 2.4GHz and 5.8Ghz cordless phones trash their home wireless networks. 73, Dan

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