Moon-net April 2014

moon-net@mailman.pe1itr.com

103 participants
119 discussions

by Jim

Thanks to all for the contacts this morning 21 in 3 hours most of them could be heard in the speaker. I felt like rare DX. Several stations said they would be looking for me in the morning Saturday. Weather maybe a problem here very high winds and rain/snow. I will still be here and will try if possible to be on the air at moonrise ~ 11:00 utc . At 144.145. Yeh I know its late April in the desert..... But that doesn't mean its balmy. 73 Jim

9 years, 1 month

path obstructions

by craig

Hello fellow Lunatics : Recently a question was posted by a future EMEer regarding antenna placement. There were several good answers. I’ve had some similar questions for years; although a bit more complicated : Almost 25 years ago I located my first dish (and associated cabling) in the NE corner of my property; mostly to maximize EU contacts since North and East directions look out over open fields. This then means that in the South and West directions (and everywhere in between) that trees and all of my tropo towers/antennas/guy wires are somewhat blocking my view. But how much ? Has anyone ever performed or read about any quantitative analysis regarding HOW much metal is TOO much ? For many beam headings, I only have guy wires in the way. How much blockage or pattern distortion would they cause ? Tree and foliage blockage is a bit more obvious, but they are mostly only a problem at low declination. >From experience, these directions have never yielded as many contacts; although we all know that activity drops off after the EU window. Comments ? Craig, N8DJB

9 years, 1 month

Linrad Calibration

by Ian McCloy

Hi All A month or so there was a link on how to calibrate the smart blanker for Linrad Have a new computer and lost the link Can someone please send me the link as I have been told this video shows how to also calibrate the FunCubePro+ Thanks Ian VA7SW

9 years, 1 month

432 and Above EME Newsletter for May 2014

by rein0zn＠ix.netcom.com

Hello All, The 432 MHz and Above EME Newsletter for May 2014 by K2UYH is at: http://www.nitehawk.com/rasmit/em70cm.html As always lots of EME News. Enjoy! 73 Rein W6SZ

9 years, 1 month

Stacking distance 4x9 DK7ZB

by Juan Antonio Fernandez

Hello all! I have purchased these antennas built by WIMO as WY209 reference. The WIMO Manual tells that: Vertical distance: 3.40m Horizontal distance: 3.22m It is strange that vertical distance is longer than horizontal distance. I asked WIMO about it and they told me that this info is from DK7ZB source. I can`t find original DK7ZB info, but in the VE7BQH chart shows a DK7ZB 9 elements a bit sorter ( 2.39wl in spite of 2.5wl from WIMO), where the distances are: Vertical distance: 3.32m Horizontal distance: 3.56m Could someone clarifies what could be the best stacking distance for these 4x9 elements antenna. Thank you very much in advance. Juan Antonio EA4CYQ

9 years, 1 month

Re: [Moon-Net] Henry 3002 fault

by John Regnault

Hi Simon, This is a fairly common fault I have had happen twice. Both times were due to overheating of the HT bleed resistors and a subsequent short circuit to ground causing the circuit breakers in the shack to fail. On one occasion I had to replace the ceramic insulators. The ceramic pillars are NL523W03-012 See: http://media.digikey.com/pdf/Data%20Sheets/Daburn%20PDFs/10-40_1.pdf I bought my replacements from Digikey but they took time to arrive 73 John G4SWX Date: Wed, 23 Apr 2014 16:18:41 +0200 From: "Timon Kruijer" <Pa1t(a)xs4all.nl> Subject: [Moon-Net] Henry 3002 fault To: <moon-net(a)mailman.pe1itr.com> Message-ID: <004201cf5efe$edce5420$c96afc60$(a)xs4all.nl> Content-Type: text/plain; charset="us-ascii" Hi All, One of my 2 Henry 3002 stopeed during last contest. When I start the amp the fuses in the house are going dead. All the fuses in the Henry are still ok. I Opened the amp and saw that the ceramic who are holding 3 big resistors are broken. Has anybody who has a 3002 seen this before? Is this the cause off my problem. 73 Timon PA1T Home page <http://www.pa1t.com> www.pa1t.com Tel 31 (0)598416308 Cel phone 31 (0)657545506

9 years, 1 month

Re: [Moon-Net] Moon-net Digest, Vol 154, Issue 9

by Pete Rimmel

In their recommendations for spacing do they say if the antennas are horizontal or vertical Polarization? Which way do you want to put them up? H or V ? PeteR N8PR -----Original Message----- From: moon-net-request(a)mailman.pe1itr.com Sent: Thursday, April 24, 2014 12:59 PM To: moon-net(a)mailman.pe1itr.com Subject: Moon-net Digest, Vol 154, Issue 9 Send Moon-net mailing list submissions to moon-net(a)mailman.pe1itr.com To subscribe or unsubscribe via the World Wide Web, visit http://mailman.pe1itr.com/mailman/listinfo/moon-net or, via email, send a message with subject or body 'help' to moon-net-request(a)mailman.pe1itr.com You can reach the person managing the list at moon-net-owner(a)mailman.pe1itr.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Moon-net digest..." Today's Topics: 1. Re: Henry 3002 fault (John Regnault) 2. Re: rover cover henry 3002 (John Regnault) 3. Stacking distance 4x9 DK7ZB (Juan Antonio Fernandez) 4. Re: Stacking distance 4x9 DK7ZB (Ted Hartson) ---------------------------------------------------------------------- Message: 1 Date: Thu, 24 Apr 2014 12:27:18 +0100 From: "John Regnault" <john.regnault(a)btinternet.com> Subject: Re: [Moon-Net] Henry 3002 fault To: <moon-net(a)mailman.pe1itr.com> Message-ID: <004e01cf5fb0$2d473d40$87d5b7c0$(a)btinternet.com> Content-Type: text/plain; charset="us-ascii" Hi Simon, This is a fairly common fault I have had happen twice. Both times were due to overheating of the HT bleed resistors and a subsequent short circuit to ground causing the circuit breakers in the shack to fail. On one occasion I had to replace the ceramic insulators. The ceramic pillars are NL523W03-012 See: http://media.digikey.com/pdf/Data%20Sheets/Daburn%20PDFs/10-40_1.pdf I bought my replacements from Digikey but they took time to arrive 73 John G4SWX Date: Wed, 23 Apr 2014 16:18:41 +0200 From: "Timon Kruijer" <Pa1t(a)xs4all.nl> Subject: [Moon-Net] Henry 3002 fault To: <moon-net(a)mailman.pe1itr.com> Message-ID: <004201cf5efe$edce5420$c96afc60$(a)xs4all.nl> Content-Type: text/plain; charset="us-ascii" Hi All, One of my 2 Henry 3002 stopeed during last contest. When I start the amp the fuses in the house are going dead. All the fuses in the Henry are still ok. I Opened the amp and saw that the ceramic who are holding 3 big resistors are broken. Has anybody who has a 3002 seen this before? Is this the cause off my problem. 73 Timon PA1T Home page <http://www.pa1t.com> www.pa1t.com Tel 31 (0)598416308 Cel phone 31 (0)657545506

9 years, 1 month

Re: [Moon-Net] rover cover henry 3002

by John Regnault

Hi Timon, To get at the HT bleed resistors in the Henry 3002 the easiest way is to completely remove the RF deck from the top of the PSU/main console. This is a slow task as many of the screws/nuts are in difficult positions. Once you have completely removed the RF deck and attached blower, access to these resistors is easier and you can then replace any broken ceramic insulators. 73 John G4SWX Date: Wed, 23 Apr 2014 17:56:43 +0200 From: "Timon Kruijer" <Pa1t(a)xs4all.nl> Subject: [Moon-Net] rover cover henry 3002 To: <moon-net(a)mailman.pe1itr.com> Message-ID: <000901cf5f0c$9f90b1a0$deb214e0$(a)xs4all.nl> Content-Type: text/plain; charset="us-ascii" Hi all How do I remover the cover of the henry 3002 so I can tighten the big resistors in the power supply. I did remove the back cover and the screws on the underside of the amp. I did disconnect all the cables to the rf deck. Can I now remover the cover so that the rf deck stays on the lower cover? Di I have to disconnect the power switch and the ssb cw switch? Can I then pull the cover up? Any help? Maybe some has done it and made a picture? 73 Timon PA1T

9 years, 1 month

Reminder for the 9th A.R.I. Italian E.M.E. Contest 2014 (12-13 April)

by Enrico Baldacci

Hello All , this is a reminder for the 9th A.R.I. Italian E.M.E. Contest 2014 (12-13 April) You can find rules at : http://www.eme2008.org/ari-eme/9th%20New%20Modes%20rules.pdf From the received log were active abt. 180 stations on 144 MHz. - abt.50 on 1296 MHz. only 7 on 432 MHz. :-(( There will be a special prize draw among all received log, please send the log, even with a single entry, everyone enters the draw for the participation prize. TNX to G4DDK Sam - F5VHX/G8MBI Grahm - EA3BK Salvador (Astroradio) sponsors of prize. Vy 73 de Enrico i5wbe

9 years, 1 month

rover cover henry 3002

by Timon Kruijer

Hi all How do I remover the cover of the henry 3002 so I can tighten the big resistors in the power supply. I did remove the back cover and the screws on the underside of the amp. I did disconnect all the cables to the rf deck. Can I now remover the cover so that the rf deck stays on the lower cover? Di I have to disconnect the power switch and the ssb cw switch? Can I then pull the cover up? Any help? Maybe some has done it and made a picture? 73 Timon PA1T Home page www.pa1t.com Tel 31 (0)598416308 Cel phone 31 (0)657545506

9 years, 1 month

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Moon-net April 2014