Moon-net January 2023

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The 144 MHz EME Newsletter JANUARY Issue...

by DF2ZC

...is for download now at www.df2zc.de/newsletter vy 73 Bernd DF2ZC www.df2zc.de ____________________________________________ 144 MHz EME NewsLetter: www.df2zc.de/newsletter twitter.com/df2zc 144 MHz DXCC #21 144 MHz WAC Kenwood TS 2000 2 x GU74b by LZ2US BEKO HLV-2000 4 x 2M18XXX 21 dBd full elevation

4 months, 2 weeks

WSJTX 2.6.1 Echo Mode Guide

by Bob Atkins

Just a note that I have posted a Basic Guide to using the new Echo mode in WSJTX 2.6.1 at https://bobatkins.com/radio/EME_WSJTX_echo_mode_basic_guide.html. It's a little more detailed than the user guide instructions (https://wsjt.sourceforge.io/wsjtx-doc/wsjtx-main-2.6.1.html#_echo_mode) and does into a little more detail about what it's doing and the various ways in which it can be used. Other than QRP stations running small (low gain) antennas, just about any reasonable station on any band should be able to detect their own echoes. The guide might be helpful if you are having problems getting the echo mode to work like you think it should. 73 Bob, KA1GT

4 months, 2 weeks

wsjt x

by David Cutajar

Hi Joe here still the issue still persists on the ic 7300 /9700 and not only mine even another two friends of mine. The issue is wsjt x not following the rig when turn the dial on q65/jt65 as there normally i change qrg.But Version 2.5.4 is working ok so i got back for the old version. 73 David 9H1TX

4 months, 2 weeks

WSJT-X 2.6.1 GA Release

by Joe Taylor

The WSJT Development Team is pleased to announce that today the Solar Flux Index is 234 and Sunspot Number is 195. Oh, yes: and the WSJT-X 2.6.1 General Availability (GA) release is now available for free download from SourceForge. Version 2.6.1 is a bug-fix release. It corrects a flaw in Q65 mode that prevented display of the T/R period spinner, makes initialization of the decoded text font more robust, does more complete initialization when the program is started in FT8 Hound mode, and corrects a bug causing program crash with more than 100 decodes in a single FT8 sequence. Additional details can be found in the Release Notes: https://wsjt.sourceforge.io/wsjtx-doc/Release_Notes_2.6.1.txt The WSJT Home Page is now located here: https://wsjt.sourceforge.io/ Direct links to installation packages for Windows, Linux, and macOS can be found on the WSJT-X page https://wsjt.sourceforge.io/wsjtx.html For those who like to compile from source, a complete source-code tarball is available at the WSJT-X page. Public access to the git repository for the WSJT project is available on the "Git" tab here: https://sourceforge.net/projects/wsjt/ WSJT-X is licensed under the terms of Version 3 of the GNU General Public License (GPL). Development of this software is a cooperative project to which many amateur radio operators have contributed. If you use our code, please have the courtesy to let us know about it. If you find bugs or make improvements to the code, please report them to us in a timely fashion. The authors and Copyright holders of WSJT-X request that derivative works should not publish programs based on features in WSJT-X before those features are made available in a General Availability (GA) release of WSJT-X. We will cease making public Release Candidate (RC) pre-releases for testing and user early access purposes if this request is ignored. Bugs should be reported by following instructions found here in the User Guide: https://www.physics.princeton.edu//pulsar/K1JT/wsjtx-doc/wsjtx-main-2.5.4.h… We hope you will enjoy using WSJT-X 2.6.1. -- 73 from Joe, K1JT; Steve, K9AN; Nico, IV3NWV; Uwe, DG3YCB; Brian, N9ADG; and John, G4KLA

4 months, 2 weeks

SSPA

by anders florin

Have one of my many prototyp SSPA 1296 MHZ with NXP MRF13750 tran. for sale. Watercooling plate, shunt for current measuring and power supply Eltech Flatpack 50v 3 kW inkl. SSPA is on very good pcb, Rogers TC350 Plus and both tran. and pcb is solder to a copper heatspreader Have more than 550 w out for long time, very stable. Bias is on the pcb and You dont need any more power supply for that. If any is interested I will send pictures and info on what You want to know. The price is + shipping. 9000:-SEK More info, schematic and so on is on my homepage sm5dgx.se 73 and see You on the moon Anders SM5DGX

4 months, 2 weeks

XLNA 10Ghz preamp availability

by Jan Kappert

Hello Lunatics, As you may have seen, we landed on serial number 200 of this 10Ghz pre-amp. We ran out of components and are investigating how many preamps to produce in a next batch. Therefor if you are interested to purchase this XLNA preamp, drop me a note. Hopefully we can maintain the price of Euro 225,=. Specs: Nf: 0.6 dB, G: 30dB Further info on my website. We would like to run at least a batch of 10 pcs. br. Jan, PAoPLY

4 months, 2 weeks

MAP65 and a different sample rate

by Gary Simpkins

Hello. I would like to use the SDRPlay Duo in dual RX mode in linrad to MAP65. The issue I have is that I can only get a sample rate of 2M or /2 decimations down to 125K or 62.5K when in dual RX mode. I can use resamplers in GNURadio to get the connection working, but it would be better to be able to go direct from linrad to MAP65. If I was to replace the sample rate option of 95238hz with 125000Hz in the MAP65 code and recompile would that possibly work. Its probably much more complicated than that but worth asking. Regards Gary

4 months, 2 weeks

The Empire Strikes Back!

by Peter Blair

In The Times this week.... http://moonbounce.info/CW_2[1].jpg ( thank you Rainer) Anyone with a Times subcription can also view the comments on the article, some were written in morse code of course. 73 Peter G3LTF

4 months, 2 weeks

Tajfun 1000 or Gemini-2 1.2K

by Bob K6ZZ

Hi Folks, Hope this post is acceptable. This may be a long shot but I'm looking for a Tajfun 1000 or Gemini-2 1.2K for my portable 2M EME operations. I need a little more power than my TE Systems amp can provide but don't want to drag a large legal limit amp out into the field to run on generator power. These both look like good candidates but lead times for new units are long. Thanks, Bob K6ZZ

4 months, 3 weeks

KC1HTT QRP EME ZOOM Meeting Presentation and Planned Future Presentations

by William E Keicher KC1HTT

My QRP EME ZOOM presentation to the Sci-Tech Amateur Radio Society (STARS) of Natick, Massachusetts which was made on 20 December 2022 is available as a video on my YouTube Channel at: https://youtu.be/7nrheeIF0Qs <https://youtu.be/7nrheeIF0Qs> along with another QRP EME presentation given at the 2019 HamXposition in Boxboro, Massachusetts at: https://youtu.be/U9_xbltSQUQ <https://youtu.be/U9_xbltSQUQ> With regard to Alessandro's (I2SVA) question, the QRP EME ZOOM presentation to the North Shore Radio Club of Chicago, IL on 10 January 2023 was recorded by the club and will soon be uploaded to my YouTube channel (search "KC1HTT" on YouTube). Additional EME ZOOM Meetings are planned for other radio clubs in the United States. If your radio club is interested in my QRP EME presentation and has a ZOOM Meeting license, then I am willing to present the talk to your club in English. Currently, the QRP EME presentation and Q&A runs over 90 minutes. The objective of these QRP EME presentations is to encourage Earth-Moon-Earth amateur radio communications among those who have an interest in EME and want to build an EME station as well as to explain some of the physics and engineering associated with QRP EME. I have added material to each subsequent presentation that resulted from further analysis of my QSO results and an increasingly better explanation of the physics and engineering of QRP EME systems. The attendees at these ZOOM Meetings ask significant questions and greatly contribute to the value of these meetings. I will send a copy of the 2019 QRP EME paper I presented at the Super VHF Conference in 2019 and a copy of the 2022 QRP EME ZOOM charts to those who are interested. I plan to add detailed technical videos on various topics in Engineering and Science to my YouTube channel in the future. 73, Bill KC1HTT -- William E. Keicher, KC1HTT 33 Pequot Court Pawcatuck,CT 06379

4 months, 3 weeks

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Moon-net January 2023