Moon-net January 2023

moon-net@mailman.pe1itr.com

98 participants
89 discussions

KC1HTT EME ZOOM Meeting with the North Shore Radio Club of Chicago (10 January 2023) Is Now On YouTube

by William Keicher

KC1HTT's recent (10 January 2023) YouTube video, *"Physics, Engineering and Operation of a QRP EME Amateur Radio Station"* is now available on YouTube at: /*https://youtu.be/AcEJ09jr13c */ <https://youtu.be/AcEJ09jr13c> This video is the record of a ZOOM Meeting hosted by the North Shore Radio Club of Chicago, IL on 10 January 2023 and was attended by over 60 Hams, including EME experts, Bill Corbin, W3CJK and Lance Collister W7GJ and others. The question and answer session at the end of the ZOOM meeting provided additional insights into EME operations. Bill KC1HTT -- William E. Keicher, KC1HTT 33 Pequot Court Pawcatuck, CT 06379

4 months, 2 weeks

Re: [Moon-Net] Announce of EME operation from JD1/O

by jh3azc＠gmail.com

4 months, 2 weeks

WANTED Cal Kit

by Polgár József

Wanted CalKit for S332D <https://Test-Equipment-For-Sale-Wanted-or-Exchange.groups.io/g/main/message /4003> I'm looking Cal Kit for ANRITSU Site Master S332D. OSLN50-1, OSLNF50-1, 22N50 or 22NF50. Thanks! Jozef HA1VQ

4 months, 2 weeks

for sale

by Lins PA3CMC

Hello all, Have voor sale; Bird slug 50-125Mhz 2500W bandpass filter 2m from antenna amplifiers 73 Lins PA3CMC & ZS6CMC 2m EME DXCC #30 EA5/PA3CMC ZS/PA3CMC Z21CMC 3DA0LB A21CMC Member of Z21EME EME DX-pedition 2014Member of HV0A EME DX-pedition 2015 Member of 3DA0MB EME DX-pedition 2017 Member of A21EME EME DX-pedition 2019 Member of LX/PA3CMC & LX/PA3FYC EME DX-pedition 2020 Member of 4U1ITU 2m & 70cm EME Activation 2022Member of<http://www.pa3cmc.nl><http://www.mmmonvhf.de><http://www.mmmonvhf.de> <http://www.pa3cmc.nl>

4 months, 2 weeks

Stacking antennas on different bands with antenna modelling ...

by Christoph Petermann

Hi Stig, A while ago I simulated with EZNEC /pro the situation I had built quite a while ago with 4x24ele DL6WU 70cm inside 4*17ele Tonna 2m. If I remember well, I saw about 3.7dB of degradation on the 70cm array, while the 2m was only affected by 0.2dB or so. Performance-wise the 70cm array behaved poor until I had pulled out the 70cm array and mounted it separately. Then it went doing as expected. I remember having discussed this out with the late K1FO when we once met at his house years ago. 73 de Christoph DF9CY -- Christoph Petermann www.cpetermann.de - www.christophpetermann.de - www.df9cy.de

4 months, 2 weeks

Stacking antennas on different bands with antenna modelling software

by Stig Larsson

I have done some antenna modelling with EZNEC Pro/2 v7.0 and tried to investigate how stacking antennas on different bands works and wonder if I can trust the result? First case is a 2m antenna close to 70 cm in vertical stacking. Second case is 6m antenna close to a 2m antenna Picture: https://sm4ggc.se/2m_70cm_6m-layoute.jpg Se table below Ref ant. 2m YU7EF EF0213M Gain 16,1 dBi Ref. ant 70cm YU7EF EF7027 Gain 19,6 dBi 2m 13 el and 70cm 27 el Yagi Distance between antennas vertically Gain 70 dBi Loss 70cm Gain 2m dBi Loss 2m 17,5 cm* 17,12 -2,5 16,1 0 35 cm 18,24 -1,4 16,1 0 70 cm 19,15 -0,5 16,1 0 1400 cm 19,6 0 16,1 0 Ref ant. 2m YU7EF EF0213M Gain 16,1 dBi Ref. ant. 6m YU7EF EF0605A Gain 10,8 dBi 2m 13 el and 6m 5 el Yagi Distance between antennas vertically Gain 2m dBi Loss 2m Gain 6m dBi Loss 6m 50 cm 15,4 -0,6 10,8 0 100 cm 15,7 -0,4 10,8 0 200 cm 16 -0,1 10,8 0 As you can se are is it only possible to notice degradation on the antenna with highest frequency is that the truth or is it some malfunction in the modelling software? I did also tested this setup with 4 old 21 el Tona 432 on the same vertical bom as 2 13 el YU7EF 2m and on the other side also 2 13 el YU7EF with a 5 el YU7EF below on same vertical boom Se picture with result: https://sm4ggc.se/Ant_SM4GGC_mast.jpg On the picture: To the Right on top 6m antenna To the Left bottom 4x13 el 2m in square stacking To the Right bottom 4X21 el 70cm Vertical stacking Result seems good with only marginell effect on gain (-0,3 dB on 70cm) and antenna pattern! But is it to trust? 73 Stig SM4GGC

4 months, 2 weeks

Re: [Moon-Net] *** SPAM *** [Moon] Stacking antennas on different bands with antenna modelling software

by f6dro

Hello,I have simulated this à long time ago.It was mandatory to simulate booms as it make à huge difference73Dom

4 months, 2 weeks

FS TR144H 144/28 transverter KUHNE

by F1DUZ

Hi all, I have for sell a TR144H 144/28 transverter from Kuhne. Working fine with power level on front pannel. 650 eur + shipping only in EC. Please message in direct mail Best 73 all Philippe F1DUZ

4 months, 2 weeks