RE: [Repeater-Builder] Re: current state of our lightning struck repeater.
Hello Eric, The fifth can is a bandpass/bandreject. Rich K8JX _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Eric Lemmon Sent: Thursday, January 21, 2010 9:09 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: current state of our lightning struck repeater. Rich, Was that fifth can a bandpass cavity or a bandpass/bandreject cavity? I ask because a bandpass cavity imposes a DC ground on the transmission line, while a bandpass/bandreject cavity shows a DC open. If the antenna and/or feedline is experiencing triboelectric charging (i. e., motion static), the bandpass cavity will effectively impose a DC ground and drain the static charge. A BpBr cavity won't help the static problem, but it will clean up some spurious emissions from your PA. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of Richard MI Ranta Sent: Wednesday, January 20, 2010 9:41 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: RE: [Repeater-Builder] Re: current state of our lightning struck repeater. I thought I'd better update the list on what was found. First off, the entire repeater was taken in to the shop for exhaustive testing. The can's were taken apart, inspected and cleaned. All that was visibly found was a little carbon. The two service monitors showed they were working ok. But, when placed back into service at the site, the transmit side leaked into the receiver side. It presented a crackling noise, like saran wrap being crushed. I don't know if the technicians tested the repeater at full power, ( 110 watts) during testing, but I think so. We did solve part of the problem. A fifth can was put into line, on the transmit side and by golly, it did the trick. The repeater is sounding better than before the strike. Interesting enough, there are two or three UHF repeaters also in the site, and none were affected? We're now looking for a 6 can set and controller. I'll share with you when we finally find out where the problem is. Rich K8JX www.w8usa.org
RE: [Repeater-Builder] Re: current state of our lightening struck repeater.
Wow, I wasn't aware lightening could do so much damage! Thanks Bob. I'll pass that on to the technicians or they probably have already read it here. ( yes, some of the technician's and even engineers read this list!) We have replaced the repeater, so that much has been done. We may be in the position to replace the duplexer's shortly. Then we should know. I keep saying I hope it's not this or that, but so far, everything I hope its not, has turned out to be affected. I'll keep the list updated as soon as we know. Rich K8JX Diversity raises the intelligence of groups. Nancy Kline /\___/\ ^ ^ )_o_(I love Samoyed Rescue- Save a Sammy !! U Visit http://www.foreverhomesamoyed.org http://www.foreverhomesamoyed.org Bring the kids? Want an exciting hobby? visit http://www.W8USA.ORG http://www.W8USA.ORG
RE: [Repeater-Builder] Re: current state of our lightening struck repeater.
I thought I'd better update the list on what was found. First off, the entire repeater was taken in to the shop for exhaustive testing. The can's were taken apart, inspected and cleaned. All that was visibly found was a little carbon. The two service monitors showed they were working ok. But, when placed back into service at the site, the transmit side leaked into the receiver side. It presented a crackling noise, like saran wrap being crushed. I don't know if the technicians tested the repeater at full power, ( 110 watts) during testing, but I think so. We did solve part of the problem. A fifth can was put into line, on the transmit side and by golly, it did the trick. The repeater is sounding better than before the strike. Interesting enough, there are two or three UHF repeaters also in the site, and none were affected? We're now looking for a 6 can set and controller. I'll share with you when we finally find out where the problem is. Rich K8JX www.w8usa.org
[Repeater-Builder] RE:Blown RF output transistor
Good morning group. Ah. Spring is here and with it, a blown output transistor on a Henry C130 AD 30R linear amplifier. It just blew around 8PM Wednesday evening. I thought it must be lightening strike, due to scorched area around the part and board. It almost looks like it tried to burn a hole right through the chassis. Have any of you folks had similar problems using this amp?? 7 years seems a tad early to be repairing or in this case, replacing the whole thing. Thanks ahead of time and enjoy the wonderful weather. Snow is gone! Rich K8JX Rationalization may be defined as self-deception by reasoning. Karen Horney Rich and Scooter the Cat /\___/\ ^ ^ )_o_(I love Samoyed Rescue- Save a Sammy !! U Visit http://www.foreverhomesamoyed.org http://www.foreverhomesamoyed.org Bring the kids? Want an exciting hobby? visit http://www.W8USA.ORG http://www.W8USA.ORG
[Repeater-Builder] RE: Strange oscillating noise problem.
Good morning on this soggy, Friday Morning. We've been experiencing a recurring problem every once and a while. It's not our repeater, but its driving me nuts trying to figure it out. It sounds like badly tuned can's, somehow feeding the output back into the input. Except, it isn't from our repeater. And it covers a wide area. I've heard another repeater being bothered by this and also a local commercial FM broadcaster came through. If I turn our repeater off, it's still there. ( I said I was trying anything.) Do you guys think trying to use direction finding equipment might produce some results?? Oh, this noise is so strong, even my signal at 25watts at a distance of 4 miles won't trigger the repeater! Any ideas?? Suggestions?? Rich K8JX Visit our club at http://www.w8usa.org http://www.w8usa.org/ Rich and the cat Scooter www.foreverhomesamoyed.org www.w8usa.org The easiest thing in the world to be is you. The most difficult thing to be is what other people want you to be. Don't let them put you in that position. Leo Buscaglia
RE: [Repeater-Builder] RE: Strange oscillating noise problem.
Sorry, I should have provided more info. The repeater is a Vertex Standard on a frequency of 145.230 mhz out, 144.630 mhz in. We have moved the repeater since the photographs displayed on the web site. We're now using a Antenna Specialist 711 ( I hope I have that model number right), brand new, and about 140 feet of Andrews Hardline. I too think it's intermod, and have been entertaining the idea that there could be a dirty pager around here somewhere. We had the can's tuned by a professional ( if you go to our links page, click on T W- they are also our landlord. Great folks!) I also have heard this noise ( I wish I could be more accurate with it. Perhaps I'll record it the next time it starts and put a link up here so you can hear it) on two UHF ham repeaters also. Rich K8JX Solve the problem yourself or accept a fate you may not like...from this perspective, the ethic of personal responsibility gains appeal. Noel M. Tichy /\___/\ ^ ^ )_o_(I love Samoyed Rescue- Save a Sammy !! U Visit http://www.foreverhomesamoyed.org for a nice hobby, http://www.w8usa.org
RE: [Repeater-Builder] RE: Strange oscillating noise problem.
I'll get my head right one of these days! This is important. I just remembered that the trustee of W8UM in Ann Arbor MI told me that 145.230 mhz is also the carrier frequency for Comcast cable. Does this help any? Rich k8jx Solve the problem yourself or accept a fate you may not like...from this perspective, the ethic of personal responsibility gains appeal. Noel M. Tichy /\___/\ ^ ^ )_o_(I love Samoyed Rescue- Save a Sammy !! U Visit http://www.foreverhomesamoyed.org http://www.foreverhomesamoyed.org for a nice hobby, http://www.w8usa.org
RE: [Repeater-Builder] FYI: FCC officially issues RO dropping code requirement today
Paper tape machines! Man, that's what I first learned my Morse Code with. Wasn't that McCoy ? I remember his name popping up a lot back then. ( Dinosaurs still roamed the earth back then). Well, I'm glad I learned it, its been nothing but a source of joy to me. Since I first got my novice call sign, WN8HJX, I only have one microphone! The rest, keys and an old bug. I think I'll try and share this joy with others in my area by putting on Morse Code lessons again. Rich K8JX Why grab possessions like thieves, or divide them like socialists, when you can ignore them like wise men? Natalie Clifford Barney /\___/\ ^ ^ )_o_(I love Samoyed Rescue- Save a Sammy !! U Visit http://www.foreverhomesamoyed.org http://www.foreverhomesamoyed.org for a nice hobby, http://www.w8usa.org
RE: [Repeater-Builder] need help securing schematic for PS.
Hello folks! I am hoping that someone might be able to help us. Our Astron RS-35M power supply died, and we can't find the schematic. Our E-mail going to Astron is being returned!!! If any of you can help us out, that would be great. Thanks and enjoy the beautiful weekend. Richard MI Ranta K8JX visit us on the web www.w8usa.org Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] need help securing schematic for PS.
Thanks a bundle!! This should help us out. I knew I should always turn to professionals. Thanks Richard Ranta K8JX Richard Douglas KC8NKA visit us on the web www.w8usa.org Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] FCC considers Auxiliary Operation on 2M!
Somebody isn't thinking too clearly on this one. 2 meters is already way over crowded. I like the idea of UHF and even SUHF,. Why not, its only for auxiliary use. Richard Ranta K8JX Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RE: N- Connector cracks???
Hello and welcome to the wonderful spring 2004. Its snowing here!! This past Saturday, our gang worked on our clubs repeater and discovered a cracked N- Connector. I believe this connector was of good quality, but do not know the brand name. Anybody here have any suggestions on how to prevent this?? I believe it was a vertical crack. Thanks and have great weekend. Richie Ranta K8JX I know of no higher fortitude than stubbornness in the face of overwhelming odds. Louis Nizer /\___/\ ^ ^ )_o_( I love Samoyed Rescue- Save a Sammy !! U Visit Yogi Keiko at http://www.geocities.com/Heartland/Ranch/5317 Bring the kids? Want an exciting hobby? visit http://www.W8USA.ORG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
