- AMSAT-BB - mailman.amsat.org

Winterfield day and FM satellites
by Tom Schuessler 26 Jan '19

26 Jan '19

Can anybody please clarify, if with winter field day, do the FM satellite rules of one contact per FM satellite remain as they are in Summer field day? Thanks. Tom N5HYP Sent from my iPhone

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M2 LEO Pack Coax Routing
by Frank Karnauskas 25 Jan '19

25 Jan '19

I am ready to hang my LEO pack but I would appreciate some clarification on routing the coax off of the beams. The instructions read: "Allow coax to hang in a loop between the rear end of the boom and the reattachment point (at least 12" beyond the element tips) on the mast or cross boom. Do not route feed line to boom-to-mast plate as exiting antenna here will adversely affect circular field." In the first sentence they say to hang the loop from the rear end of the boom but in the second sentence they say not run the feed line to the boom-to-mast plate...which is at the rear end of the boom. Anything anyone can share to help my simple mind understand what works will be greatly appreciated. 73, Frank N1UW We have no problems, only insurmountable opportunities.

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WISP
by Jeff kb2m 25 Jan '19

25 Jan '19

I was merrily rolling along with a full-dir then all of a sudden WISP loses all it's config data. Sats disappeared, my lat long is set to 0, etc. There doesn't seem to be a corrupt file involved. I try to redo a sat and it doesn't seem to accept any data, just the sat name. Is there anyway around this other then a complete re-install? I'm running WIN10... 73 Jeff kb2m

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2016-066G Query
by Ross Clelland 25 Jan '19

25 Jan '19

Dear Alan Kung I'm contacting you today about the satellite you operate, 2016-066G on behalf of the Mechanical and Aerospace Engineering department at the University of Strathclyde, Glasgow. I'm part of a student team of computer scientists involved in a student project which aims to upgrade an existing ground station to be able to use Software Defined Radio. As part of our research project we need to receive signals from a satellite in orbit and decode them to obtain meaningful data such as telemetry data as a proof of concept. To assist with this, we were hoping you would be willing to share some of the essential pieces of this process such as audio samples from your satellite, any flowgraphs you might have created for them, particularly using GNU Radio, or any associated decoding or ground station software. In return for this, once the project is functional we would be happy to report data we were able to receive back to you. Kind Regards, Ross MEng Computer Science, University of Strathclyde

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Re: [amsat-bb] Masthead RF preamp suggestions?
by John Brier 25 Jan '19

25 Jan '19

On Thu, Jan 24, 2019 at 9:05 AM Stephen E. Belter <seb(a)wintek.com> wrote: > Advanced Receiver Research (ARR, www.advancedreceiver.com) has less expensive preamps that are also popular, but you'll need to build the weatherproof housing. The front-end filtering isn't as good as the SSB. The 160 watt ARR preamps are weatherproof. Not sure they are inexpensive though :-) http://www.advancedreceiver.com/page10.html 73, John Brier KG4AKV

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NEXUS identified
by Nico Janssen 25 Jan '19

25 Jan '19

Doppler measurements show that NEXUS is object 43938, 2019-003G. Downlink: 437.0732 MHz. 73, Nico PA0DLO

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Masthead RF preamp suggestions?
by Ken M 24 Jan '19

24 Jan '19

Hello all, I am seeking suggestions for reasonably low-cost (but reasonably effective) masthead preamps for 2m and 70cm to go along with a pair of omni QFH antennas. Kit or commercial is fine. Also any thoughts on how effective preamps might be on omni antennas vs highly directional antennas. Thanks - 73 Ken VA7KBM

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Anyone have a Gulf Alpha 70cm 8x8 CP antenna?
by Bob Hammond 24 Jan '19

24 Jan '19

I’ve lost the instructions on how to properly place the driven element shorting blocks. I’ve tried using my SWR meter but with no good results. Bob

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FUNcube Warehouse Maintenance
by David Johnson 24 Jan '19

24 Jan '19

Hi, There may be some short outages in the warehouse today as we do some upgrades. Dashboards will pick up when the server comes back. 73 Dave, G4DPZ

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AMSAT at Charlotte NC Hamfest?
by Philip Jenkins 24 Jan '19

24 Jan '19

Hi all I'm considering doing an AMSAT info booth at the Charlotte Hamfest this year. The hours are a bit unusual, as it is a Friday & Saturday event - 3-7pm on Friday, March 8 and 830 am - 4 pm on Saturday, March 9. (I helped with info tables at the Raleigh NC and Shelby NC hamfests last year, and things went really well. John KG4AKV handled the demos at Raleigh, and John K4SQC did those duties at Shelby.) I haven't fully decided to do this yet, just wanted to see if other were interested in helping me man the table on Saturday, and I'd REALLY appreciate it if someone would attempt some demos outside (FM or SSB birds - or both!). I don't expect those helping to stand at the table ALL day, just give me a break from time to time. (I tend to lose my voice after a few hours from talking so much. :-) ) I also don't want to get in anyone's way if he or she is already planning AMSAT activities of any kind there. Just let me know. Philip N4HF

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