Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters
Something like that should be passed along to the Repeater Council or the Official Observer to see if they can talk to this individual. unless he wants to be famous in the ARRL web site with a letter from the FCC or something. I can't offer any other solution. Mark Holman AB8RU *** IT Student * Happy Holidays - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, December 21, 2004 5:58 PM Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters It sure is - a mess, that is. Repeated offers to the guy to offer help with a Service Monitor, etc. have gone rejected. He's using a ham dual-bander mobile radio at a high-level site, and some of the garbage noise has caused one of the main local 2-Meter Portland Repeaters to kerchunk continually whenever the IRLP or Echolink (or whatever it's called) system keys up. It's also tied up one of the main local 2-Meter simplex channels that was normally designated for many years as a Remote Base to Remote Base channel. What some people won't do just to be a Repeater Owner. LJ Original Message: - From: JOHN MACKEY [EMAIL PROTECTED] Date: Tue, 21 Dec 2004 11:12:06 -0600 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Sounds like a similar problem here in Portland, Oregon. We have a guy running an IRLP node here on what is commonly thought of as 2 meter simplex frequencies. The station is on a broadcast tower with high elevation running about 375 watts ERP!!! Mobiles 100 miles away can clearly hear the IRLP node!! The IRLP node is made from amateur grade RF equipement has had SEVERAL problems with causing interference with the inputs of other repeaters in the area. Attempting to talk to the owner suggesting he put sharp cavity filters on the transmitter resulted in his reply of then I wouldn't be able to be frequency agile. Meanwhile, his deviation has been measured at +/- 9 KHz, and he argues that there is nothing wrong because a telecom service agency measured set his deviation. -- Original Message -- Received: Tue, 21 Dec 2004 09:23:57 AM CST From: Jim B. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem from pager transmitters Except that the vast majority of VHF transmitters/networks weren't really capable of multi-freq on the fly as you describe. At least around here, anyway, they were virtually all Micor PURC stations. And most sites would not have allowed the transmitters to remain without cavites anyway. -- Jim Barbour WD8CHL Joe wrote: You will find less and less narrow band cavities on paging transmitters lately. As the paging industry slowly goes into their death spiral of loosing customers, they no longer need 2, 4 or more transmitters at each site to deal with the capacity of pagers out there. What some companies are doing is leaving one transmitter at the site and doing multi-frequencies out of a single transmitter (This is assuming they were all on the same band, 900Mhz for example.) When they multi-frequency a transmitter they need to remove any narrow band filters off the transmitter output. This may explain why some ham repeater sites that were quiet now have noise problems. The irony of it is that you see paging transmitters leaving a site and think that the noise floor is going to go down, only to find that the nose increases tenfold. 73, Joe, K1ike At 09:53 AM 12/21/2004, you wrote: All paging transmitters involved should have narrow bandpass cavities and circulators on their outputs. That's usually considered a must at any site. If the paging company isn't willing to spend the money for that, then they aren't to serious about staying in business. The good news is that VHF common carrier paging is slowly going away, and the remaining frequencies will likely be dropped and released back into the general pool in a few years, or less. There is virtually no VHF paging here in NE Ohio anymore. -- Jim Barbour WD8CHL Yahoo! Groups Links Yahoo! Groups Links mail2web - Check your email from the web at http://mail2web.com/ . Yahoo! Groups Links 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] HELP: 2 meter repeater intermod problem frompager transmitters
Since the system is not a coordinated repeater, it has nothing to do with the coordination coucil. At least one OO did speak with the licensee. There were several discussion about this within the OO ranks. -- Original Message -- Received: Tue, 21 Dec 2004 08:02:45 PM CST From: Mark Holman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Something like that should be passed along to the Repeater Council or the Official Observer to see if they can talk to this individual. unless he wants to be famous in the ARRL web site with a letter from the FCC or something. I can't offer any other solution. Mark Holman AB8RU *** IT Student * Happy Holidays - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, December 21, 2004 5:58 PM Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters It sure is - a mess, that is. Repeated offers to the guy to offer help with a Service Monitor, etc. have gone rejected. He's using a ham dual-bander mobile radio at a high-level site, and some of the garbage noise has caused one of the main local 2-Meter Portland Repeaters to kerchunk continually whenever the IRLP or Echolink (or whatever it's called) system keys up. It's also tied up one of the main local 2-Meter simplex channels that was normally designated for many years as a Remote Base to Remote Base channel. What some people won't do just to be a Repeater Owner. LJ Original Message: - From: JOHN MACKEY [EMAIL PROTECTED] Date: Tue, 21 Dec 2004 11:12:06 -0600 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Sounds like a similar problem here in Portland, Oregon. We have a guy running an IRLP node here on what is commonly thought of as 2 meter simplex frequencies. The station is on a broadcast tower with high elevation running about 375 watts ERP!!! Mobiles 100 miles away can clearly hear the IRLP node!! The IRLP node is made from amateur grade RF equipement has had SEVERAL problems with causing interference with the inputs of other repeaters in the area. Attempting to talk to the owner suggesting he put sharp cavity filters on the transmitter resulted in his reply of then I wouldn't be able to be frequency agile. Meanwhile, his deviation has been measured at +/- 9 KHz, and he argues that there is nothing wrong because a telecom service agency measured set his deviation. -- Original Message -- Received: Tue, 21 Dec 2004 09:23:57 AM CST From: Jim B. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem from pager transmitters Except that the vast majority of VHF transmitters/networks weren't really capable of multi-freq on the fly as you describe. At least around here, anyway, they were virtually all Micor PURC stations. And most sites would not have allowed the transmitters to remain without cavites anyway. -- Jim Barbour WD8CHL Joe wrote: You will find less and less narrow band cavities on paging transmitters lately. As the paging industry slowly goes into their death spiral of loosing customers, they no longer need 2, 4 or more transmitters at each site to deal with the capacity of pagers out there. What some companies are doing is leaving one transmitter at the site and doing multi-frequencies out of a single transmitter (This is assuming they were all on the same band, 900Mhz for example.) When they multi-frequency a transmitter they need to remove any narrow band filters off the transmitter output. This may explain why some ham repeater sites that were quiet now have noise problems. The irony of it is that you see paging transmitters leaving a site and think that the noise floor is going to go down, only to find that the nose increases tenfold. 73, Joe, K1ike At 09:53 AM 12/21/2004, you wrote: All paging transmitters involved should have narrow bandpass cavities and circulators on their outputs. That's usually considered a must at any site. If the paging company isn't willing to spend the money for that, then they aren't to serious about staying in business. The good news is that VHF common carrier paging is slowly going away, and the remaining frequencies will likely be dropped and released back into the general pool in a few years, or less. There is virtually no VHF paging here in NE Ohio anymore. -- Jim Barbour WD8CHL Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters
Cute ... I saw that too but declined to comment ... Neil JOHN MACKEY wrote: Hmmm, after 20 years of ham radio, past experience in commercial 2 way currently working as an Chief Engineer in the radio broadcast field and possessing my Extra Amateur and GROL, I don't know what a FCC 1st class licensed ham is!! -- Original Message -- Received: Mon, 20 Dec 2004 10:54:16 PM CST From: kc4ih [EMAIL PROTECTED] with to the repeater frequencies by FCC 1st class licensed hams Yahoo! Groups Links 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] HELP: 2 meter repeater intermod problem frompager transmitters
No, you didn't !!! ;) Kenneth Buley Bullitt County DES CD-2 Bullitt County Red Cross/Certified ECRVDriver/Operator BC-6 Bullitt County ARES\RACES Coordinator KY4DES -Original Message- From: Neil McKie [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 21, 2004 12:28 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Cute ... I saw that too but declined to comment ... Neil JOHN MACKEY wrote: Hmmm, after 20 years of ham radio, past experience in commercial 2 way currently working as an Chief Engineer in the radio broadcast field and possessing my Extra Amateur and GROL, I don't know what a FCC 1st class licensed ham is!! -- Original Message -- Received: Mon, 20 Dec 2004 10:54:16 PM CST From: kc4ih [EMAIL PROTECTED] with to the repeater frequencies by FCC 1st class licensed hams Yahoo! Groups Links Yahoo! Groups Links 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] HELP: 2 meter repeater intermod problem frompager transmitters
Thank you, sir! Neil - WA6KLA Buley, Kenneth L (GE Consumer Industrial) wrote: No, you didn't !!! ;) Kenneth Buley Bullitt County DES CD-2 Bullitt County Red Cross/Certified ECRVDriver/Operator BC-6 Bullitt County ARES\RACES Coordinator KY4DES -Original Message- From: Neil McKie [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 21, 2004 12:28 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Cute ... I saw that too but declined to comment ... Neil JOHN MACKEY wrote: Hmmm, after 20 years of ham radio, past experience in commercial 2 way currently working as an Chief Engineer in the radio broadcast field and possessing my Extra Amateur and GROL, I don't know what a FCC 1st class licensed ham is!! -- Original Message -- Received: Mon, 20 Dec 2004 10:54:16 PM CST From: kc4ih [EMAIL PROTECTED] with to the repeater frequencies by FCC 1st class licensed hams Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links 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] HELP: 2 meter repeater intermod problem frompager transmitters
It sure is - a mess, that is. Repeated offers to the guy to offer help with a Service Monitor, etc. have gone rejected. He's using a ham dual-bander mobile radio at a high-level site, and some of the garbage noise has caused one of the main local 2-Meter Portland Repeaters to kerchunk continually whenever the IRLP or Echolink (or whatever it's called) system keys up. It's also tied up one of the main local 2-Meter simplex channels that was normally designated for many years as a Remote Base to Remote Base channel. What some people won't do just to be a Repeater Owner. LJ Original Message: - From: JOHN MACKEY [EMAIL PROTECTED] Date: Tue, 21 Dec 2004 11:12:06 -0600 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem frompager transmitters Sounds like a similar problem here in Portland, Oregon. We have a guy running an IRLP node here on what is commonly thought of as 2 meter simplex frequencies. The station is on a broadcast tower with high elevation running about 375 watts ERP!!! Mobiles 100 miles away can clearly hear the IRLP node!! The IRLP node is made from amateur grade RF equipement has had SEVERAL problems with causing interference with the inputs of other repeaters in the area. Attempting to talk to the owner suggesting he put sharp cavity filters on the transmitter resulted in his reply of then I wouldn't be able to be frequency agile. Meanwhile, his deviation has been measured at +/- 9 KHz, and he argues that there is nothing wrong because a telecom service agency measured set his deviation. -- Original Message -- Received: Tue, 21 Dec 2004 09:23:57 AM CST From: Jim B. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HELP: 2 meter repeater intermod problem from pager transmitters Except that the vast majority of VHF transmitters/networks weren't really capable of multi-freq on the fly as you describe. At least around here, anyway, they were virtually all Micor PURC stations. And most sites would not have allowed the transmitters to remain without cavites anyway. -- Jim Barbour WD8CHL Joe wrote: You will find less and less narrow band cavities on paging transmitters lately. As the paging industry slowly goes into their death spiral of loosing customers, they no longer need 2, 4 or more transmitters at each site to deal with the capacity of pagers out there. What some companies are doing is leaving one transmitter at the site and doing multi-frequencies out of a single transmitter (This is assuming they were all on the same band, 900Mhz for example.) When they multi-frequency a transmitter they need to remove any narrow band filters off the transmitter output. This may explain why some ham repeater sites that were quiet now have noise problems. The irony of it is that you see paging transmitters leaving a site and think that the noise floor is going to go down, only to find that the nose increases tenfold. 73, Joe, K1ike At 09:53 AM 12/21/2004, you wrote: All paging transmitters involved should have narrow bandpass cavities and circulators on their outputs. That's usually considered a must at any site. If the paging company isn't willing to spend the money for that, then they aren't to serious about staying in business. The good news is that VHF common carrier paging is slowly going away, and the remaining frequencies will likely be dropped and released back into the general pool in a few years, or less. There is virtually no VHF paging here in NE Ohio anymore. -- Jim Barbour WD8CHL Yahoo! Groups Links Yahoo! Groups Links mail2web - Check your email from the web at http://mail2web.com/ . 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/
