October 2008 - AMSAT-BB - mailman.amsat.org

Recording Request
by Callum Graham 30 Oct '08

30 Oct '08

Hello all, I was fortunate enough this morning to speak to Mike Finkle on the ISS this morning after answering his QC call just before a sheduled school contact. Does anyone have a recording of it ? if so could anyone please send it to me at MM3YCG(a)btinternet.com . It would be greatly appreciated !! 73

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ISS Pass ~ 1615 UTC October 29?
by Scott Schmautz 29 Oct '08

29 Oct '08

Hi All: Anyone happen to record the activity from the ISS repeater on the pass from around 1615 UTC or so today? My first QRP, Handy Talkie, twisting knobs while listening on two VFOs and waving antenna around in the pool area QSO! Scott/WB2UZR -- "I am so clever that sometimes I don't understand a single word of what I am saying." Oscar Wilde

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ISS repeater
by Jim Danehy 29 Oct '08

29 Oct '08

Just got off a 25 degree pass . . . nice to work a new "bird". My first time on the cross band repeater on the ISS. Since it is only 200 miles up it moves quickly across the sky but it sure has a great signal . . . a little tricky to keep on it but great to work new guys on a new bird. Thanks for turning it on . . . Jim W9VNE EM79tb Cincinnati, Ohio

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AO-51 V/U SSB/FM mode
by Alan P. Biddle 29 Oct '08

29 Oct '08

Morning, Had a great QSO with myself this morning. Compared with the last time I tried this mode, the uplink audio gain seems much better matched. The last time, I and others had to hit the bird with a lot of RF, whereas this morning I found that the normal level was plenty to get into the bird with comparable downlink to the FM/FM operation. I did get at least one call toward LOS which sounding like the uplink was FM, but he did not get things switched until my LOS. Alan WA4SCA ----------------------------------- What's the opposite of Diversity? University! Catherine McMillan

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AO-7 LOG
by TERRY BROMLEY 29 Oct '08

29 Oct '08

Just tried to log 3 qso's in the log, came up ao-7 log supended ????? Terry G1WPR.

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FO-29 beacon LA2QAA
by k3szh＠netzero.net 29 Oct '08

29 Oct '08

Yes the beacon is on ,just worked G7NFO and PA1TNO (12:08 utc) with less than 1 deg. elevation and a 4 min. pass. It's the ears John hi hi Joe Amsat 3788 since 1976 _____________________________________________________________ Click here and choose from thousands of high quality used cars. http://thirdpartyoffers.netzero.net/TGL2221/fc/Ioyw6i4vAOvnfuzu8liqZmtbgE5i…

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FO-29.
by John Hackett 29 Oct '08

29 Oct '08

Hello Folks, Is the FO-29 beacon operational ??. I had a listen on the pass at 22:08 this evening but heard nothing. I see from the Carr log that the satellite was operational today but there's no info about the beacon. Anybody heard it in the last 24 hours or so ??. Any relavant information very much appreciated. 73 John. <la2qaa(a)amsat.org>

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1.2ghz helix
by w7lrd＠comcast.net 29 Oct '08

29 Oct '08

I am almost finished with a 16 turn helix for 1.2ghz. I am not sure of what type of matching I should use. Some of designs I have seen use a flat tab on the first 90 degrees of the helix. What size should it be? Is there a better way? I have a bird 43 with a 1.2 slug for tuning. 73 Bob W7LRD -- "if this were easy, everyone would be doing it"

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ISS Cross Band Repeater
by David Barber 29 Oct '08

29 Oct '08

The ISS cross band repeater is on and working extremely well. The 06.50utc UK pass was accessible during the full period of visibility however there were few stations and only one contact was made with DL0SP, thank you Mario. Can I stress the importance of the Doppler correction on the uplink. It was apparent that there were at least two other stations that would have been perfectly readable had this been correct. Good luck to all. David G8OQW

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Re: 1.2ghz helix
by Edward Cole 29 Oct '08

29 Oct '08

Bob, That is what I have used with great success. Some folks make a curved line but I just used some 1/4 inch brass strap that I cut to fit one quarter turn from the coax connector to the beginning of the helix wire (I use 12ga. house wire with insulation stripped off). The connector end of the strip line has a hole drilled to fit the N-connectort pin and is soldered as close to ground and not short out. The other end is only about 1/4 inch farther from ground. I drill a hole there for the 12ga wire to connect. I am using this for a 3-1/2 turn helix feed on 1296 and a 6-turn feed for 2400. http://www.kl7uw.com/1420helix.htm http://www.kl7uw.com/1420helix.jpg 73, Ed - KL7UW At 06:58 PM 10/28/2008, w7lrd(a)comcast.net wrote: >I am almost finished with a 16 turn helix for 1.2ghz. I am not sure >of what type of matching I should use. Some of designs I have seen >use a flat tab on the first 90 degrees of the helix. What size >should it be? Is there a better way? I have a bird 43 with a 1.2 >slug for tuning. >73 Bob W7LRD > >-- >"if this were easy, everyone would be doing it" >_______________________________________________ >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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