[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
At 12:37 PM 10/13/2009, David Wing wrote: It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. ... Maybe it has not been an issue but I'd care to hear of anyone experiences. By all means do SOMETHING. I did not originally, and I replaced a relay once, and then later I had the conductors etched right off of the board by electrolytic effects. I often left the 12v for the polarity control turned on, and when dew or whatever makes the board damp, current from the 12v flows thru the water, etching conductors away. (In my location we have dew every night just about year round.) Later I repaired the board by putting down wires where the traces used to be, and covering them with silicone. I've heard stories over the years of many other people having these problems. That board definitely needs some environmental protection. ___ Sent via amsat...@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
[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
I'd put a little plastic or Tupperware box over it. The 70cm version that I have has only been used for Field Day, so it's not been outside much, but it definitely shows signs of having been damp. 73, Jim KQ6EA --- On Tue, 10/13/09, David Wing da...@cdwing.com wrote: From: David Wing da...@cdwing.com Subject: [amsat-bb] KLM 2M-14C...waterproof the polarity switch? To: amsat-bb@AMSAT.Org Date: Tuesday, October 13, 2009, 12:37 PM Anyone out there with KLM antennas with the polarity switch care to comment on whether you have put a housing on the switch to protect it from the elements? It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. Maybe it has not been an issue but I'd care to hear of anyone experiences. If anyone has built up a housing and have pictures or directions, please pass them along 73, David K6CDW ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
Domenico I8CVS did it and I copied his method. Pictures here mine: http://picasaweb.google.com/ve4yz.alan/I8CVSWXProofKLM# 73, Alan VE4YZ EN19kv AMSAT LM 2352 http://www.wincube.ca -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of David Wing Sent: October 13, 2009 2:38 PM To: amsat-bb@amsat.org Subject: [amsat-bb] KLM 2M-14C...waterproof the polarity switch? Anyone out there with KLM antennas with the polarity switch care to comment on whether you have put a housing on the switch to protect it from the elements? It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. Maybe it has not been an issue but I'd care to hear of anyone experiences. If anyone has built up a housing and have pictures or directions, please pass them along 73, David K6CDW ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
David the one I got the previous owner just put RVT all over it, except the RCA jack. I need to redo it, but it's raining, hi. The 435 yagi came with an aluminum box enclosurewonder why they didnt do the vhf yagi the same ?? Course we'll never know as they are out of business. John - Original Message - From: David Wing da...@cdwing.com To: amsat-bb@amsat.org Sent: Tuesday, October 13, 2009 12:37:45 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] KLM 2M-14C...waterproof the polarity switch? Anyone out there with KLM antennas with the polarity switch care to comment on whether you have put a housing on the switch to protect it from the elements? It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. Maybe it has not been an issue but I'd care to hear of anyone experiences. If anyone has built up a housing and have pictures or directions, please pass them along 73, David K6CDW ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
if i remember correctly isn't KLM the predisessor (sp?) of M squared? w6...@comcast.net wrote: David the one I got the previous owner just put RVT all over it, except the RCA jack. I need to redo it, but it's raining, hi. The 435 yagi came with an aluminum box enclosurewonder why they didnt do the vhf yagi the same ?? Course we'll never know as they are out of business. John - Original Message - From: David Wing da...@cdwing.com To: amsat-bb@amsat.org Sent: Tuesday, October 13, 2009 12:37:45 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] KLM 2M-14C...waterproof the polarity switch? Anyone out there with KLM antennas with the polarity switch care to comment on whether you have put a housing on the switch to protect it from the elements? It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. Maybe it has not been an issue but I'd care to hear of anyone experiences. If anyone has built up a housing and have pictures or directions, please pass them along 73, David K6CDW ___ Sent via amsat...@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 ___ Sent via amsat...@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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.421 / Virus Database: 270.14.14/2433 - Release Date: 10/13/09 13:25:00 ___ Sent via amsat...@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
[amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch?
Yes, it is. Jim --- On Tue, 10/13/09, Joe n...@mwt.net wrote: From: Joe n...@mwt.net Subject: [amsat-bb] Re: KLM 2M-14C...waterproof the polarity switch? To: w6...@comcast.net Cc: amsat-bb@amsat.org Date: Tuesday, October 13, 2009, 3:37 PM if i remember correctly isn't KLM the predisessor (sp?) of M squared? w6...@comcast.net wrote: David the one I got the previous owner just put RVT all over it, except the RCA jack. I need to redo it, but it's raining, hi. The 435 yagi came with an aluminum box enclosurewonder why they didnt do the vhf yagi the same ?? Course we'll never know as they are out of business. John - Original Message - From: David Wing da...@cdwing.com To: amsat-bb@amsat.org Sent: Tuesday, October 13, 2009 12:37:45 PM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] KLM 2M-14C...waterproof the polarity switch? Anyone out there with KLM antennas with the polarity switch care to comment on whether you have put a housing on the switch to protect it from the elements? It looks like the relay has silicon around the base but it just grates me the wrong way to have a circuit board with a power connection and components exposed to the elements. Maybe it has not been an issue but I'd care to hear of anyone experiences. If anyone has built up a housing and have pictures or directions, please pass them along 73, David K6CDW ___ Sent via amsat...@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 ___ Sent via amsat...@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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.421 / Virus Database: 270.14.14/2433 - Release Date: 10/13/09 13:25:00 ___ Sent via amsat...@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 ___ Sent via amsat...@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
