[Repeater-Builder] RE: [Motorola] TLN4928A2 PL Encoder for Micor
David, Thanks for the quick response! I went back to my manual collection, and found that I did have the C revision- but the page in question was in the wrong place. Once again, I am glad that I kept these old manuals- there's always some tidbit of information that is buried in them that makes it all worthwhile. 73, Eric Lemmon WB6FLY -Original Message- From: djoneses [mailto:djone...@verizon.net] Sent: Wednesday, December 31, 2008 6:32 AM To: 'Discussion of equipment manufactured by Motorola'; motorola-mi...@yahoogroups.com; Repeater-Builder@yahoogroups.com Cc: 'Eric Lemmon' Subject: RE: [Motorola] TLN4928A2 PL Encoder for Micor Eric, The TLN4928A2 was used in UHF Micors only and the schematic can be found in manual 6881015E70-C on page 7-14. If you do not have this, let me know and I can scan the pertinent pages and e-mail to you. David -Original Message- From: motorola-boun...@mailman.qth.net [mailto:motorola-boun...@mailman.qth.net] On Behalf Of Eric Lemmon Sent: Wednesday, December 31, 2008 1:55 AM To: motorola-mi...@yahoogroups.com; 'Discussion of equipment manufactured by Motorola'; Repeater-Builder@yahoogroups.com Subject: [Motorola] TLN4928A2 PL Encoder for Micor I have two Micor T34RTA3800AA UHF mobile radios that each have a TLN4928A2 PL encoder installed. Although I have nearly a dozen Micor manuals, none of them include this encoder board. Every copy of the 6881015E70 manual in my library shows the TLN4293A/B, TLN5731A, or the TLN5732A PL encoder- but not the TLN4928A2. The circuit boards are definitely not the same, although the circuitry seems to be similar. Can anyone identify the manual that includes a schematic diagram of the TLN4928A2 PL encoder? Thanks! 73, Eric Lemmon WB6FLY __ Motorola mailing list Home: http://mailman.qth.net/mailman/listinfo/motorola Help: http://mailman.qth.net/faq.htm Post: mailto:motor...@mailman.qth.net
[Repeater-Builder] Old 220-222Mhz ACSSB system parts usable?
I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike
Re: [Repeater-Builder] Old 220-222Mhz ACSSB system parts usable?
I made a BpBr style duplexer from an Aerial Facilities Limited combiner. Had 4 Band pass cavities that were about 8 square. Removed one coupling loop and made the other bigger with a johansen trimmer capacitor to set the notch. About the only problem it the coupling loop still rotates so it has to be set for maximum coupling and locked down tight. Seems to do about 85dB of rejection per leg. It's a little big compared to the Sinclair 220 duplexer, but at $20 a cavity I cant complain. On Wed, Dec 31, 2008 at 8:42 AM, Joe k1ike_m...@snet.net wrote: I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike Yahoo! Groups Links
[Repeater-Builder] Re: 220-222MHz ACSSB Antenna Combiner Systems
Hi Joe, I have a large number of the Securicor, Intek 220MHz ACSB trunking combiners removed from service here on the West Coast (California). T'was at one time quite the build-out... going from Texas up through Alaska. At first glance it appears least one of almost every antenna combiner manufacture produced their own version of the 5 channel combiners for the various incarnations of 220MHz Trunking. However, there are/were other size trunking systems... I have also seen and worked with two and three channel TX combiners. So I have Wacom, Cellwave, Aerial Systems, RJ, Telewave, Sinclair and a few other custom made configurations here. And there are different variations of combiner systems made by the various manufactures. It's very interesting to see how different people accomplished the same task with fairly similar and different hardware layouts. So what is most practical to do with what you have depends on what specific hardware you received. In most cases it's well worth your time to try and track this stuff down... lots of the hardware found in the combiner translates to use in other applications. Specific to the Cellwave hardware you have... depends on what you have. Some of the Cavities are set for pre-selection insertion loss, some are set for one frequency notch. Some cavities have semi fixed loops/probes that are hard to work with... and then there's the easily adjusted bottles. I measured and made actual performance graphs for the Cellwave version... so email me direct if you would like to talk more about it off the list. I'm using a number of the original as-built TX Combiners at various mountain top sites. They simply needed minor modifications and re-tuning. Some of the combiners racks (like a number of the Cellwave units I have) include receiver pre-selection. In many cases the receiver pre-selection will work for low power systems but is really not enough for 2 or more high powered transmitters in the typical close spaced Amateur Ap. The Aerial Systems Square Cavities mentioned in dcflux's post are really, really nice units with relatively much high Q compared to slightly smaller round cavities. But they are cumbersome to mount if you don't have the original mfgrs rack rails. I can post information and hints here if people are interested but it's probably more practical to yak off the list. Please feel free to (send food) email me direct. cheers, skipp skipp025 at yahoo.com Joe k1ike_m...@... wrote: I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike
Re: [Repeater-Builder] Re: 220-222MHz ACSSB Antenna Combiner Systems
Hi Skipp, The combiner in this rack is a Celwave TJD220-5T and there is another number on the rack, Model 720160 (forgot where this was located on the equipment). My goal is to come up with a plan for a 222mhz duplexer for a friend's linking project. I shouldn't have sold my 222 repeater after all, but that's the way it always goes. You need something after you sell it. It looks like there are enough cans to make something work. I was thinking 2 pass cans and 1 notch can on each side. 6 cans in all, I just have to experiment with the connecting cable lengths. This will be a low powered linking repeater, so duplexer losses will not be a big issue. We can take it private, but others may be interested? 73, Joe, K1ike The GLB is in the mail, Priority yesterday 12/30/08 skipp025 wrote: Hi Joe, I have a large number of the Securicor, Intek 220MHz ACSB trunking combiners removed from service here on the West Coast (California). T'was at one time quite the build-out... going from Texas up through Alaska. At first glance it appears least one of almost every antenna combiner manufacture produced their own version of the 5 channel combiners for the various incarnations of 220MHz Trunking. However, there are/were other size trunking systems... I have also seen and worked with two and three channel TX combiners. So I have Wacom, Cellwave, Aerial Systems, RJ, Telewave, Sinclair and a few other custom made configurations here. And there are different variations of combiner systems made by the various manufactures. It's very interesting to see how different people accomplished the same task with fairly similar and different hardware layouts. So what is most practical to do with what you have depends on what specific hardware you received. In most cases it's well worth your time to try and track this stuff down... lots of the hardware found in the combiner translates to use in other applications. Specific to the Cellwave hardware you have... depends on what you have. Some of the Cavities are set for pre-selection insertion loss, some are set for one frequency notch. Some cavities have semi fixed loops/probes that are hard to work with... and then there's the easily adjusted bottles. I measured and made actual performance graphs for the Cellwave version... so email me direct if you would like to talk more about it off the list. I'm using a number of the original as-built TX Combiners at various mountain top sites. They simply needed minor modifications and re-tuning. Some of the combiners racks (like a number of the Cellwave units I have) include receiver pre-selection. In many cases the receiver pre-selection will work for low power systems but is really not enough for 2 or more high powered transmitters in the typical close spaced Amateur Ap. The Aerial Systems Square Cavities mentioned in dcflux's post are really, really nice units with relatively much high Q compared to slightly smaller round cavities. But they are cumbersome to mount if you don't have the original mfgrs rack rails. I can post information and hints here if people are interested but it's probably more practical to yak off the list. Please feel free to (send food) email me direct. cheers, skipp skipp025 at yahoo.com Joe k1ike_m...@... wrote: I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike Yahoo! Groups Links
[Repeater-Builder] Re: 220-222MHz ACSSB Antenna Combiner Systems
Hi Joe, I don't have all the model numbers recorded... so a picture of the unit says a thousand words mucho betta'. I'll email you a picture to indicate if this is the unit you have... take this off the group. cheers, skipp Joe k1ike_m...@... wrote: Hi Skipp, The combiner in this rack is a Celwave TJD220-5T and there is another number on the rack, Model 720160 (forgot where this was located on the equipment). My goal is to come up with a plan for a 222mhz duplexer for a friend's linking project. I shouldn't have sold my 222 repeater after all, but that's the way it always goes. You need something after you sell it. It looks like there are enough cans to make something work. I was thinking 2 pass cans and 1 notch can on each side. 6 cans in all, I just have to experiment with the connecting cable lengths. This will be a low powered linking repeater, so duplexer losses will not be a big issue. We can take it private, but others may be interested? 73, Joe, K1ike The GLB is in the mail, Priority yesterday 12/30/08 skipp025 wrote: Hi Joe, I have a large number of the Securicor, Intek 220MHz ACSB trunking combiners removed from service here on the West Coast (California). T'was at one time quite the build-out... going from Texas up through Alaska. At first glance it appears least one of almost every antenna combiner manufacture produced their own version of the 5 channel combiners for the various incarnations of 220MHz Trunking. However, there are/were other size trunking systems... I have also seen and worked with two and three channel TX combiners. So I have Wacom, Cellwave, Aerial Systems, RJ, Telewave, Sinclair and a few other custom made configurations here. And there are different variations of combiner systems made by the various manufactures. It's very interesting to see how different people accomplished the same task with fairly similar and different hardware layouts. So what is most practical to do with what you have depends on what specific hardware you received. In most cases it's well worth your time to try and track this stuff down... lots of the hardware found in the combiner translates to use in other applications. Specific to the Cellwave hardware you have... depends on what you have. Some of the Cavities are set for pre-selection insertion loss, some are set for one frequency notch. Some cavities have semi fixed loops/probes that are hard to work with... and then there's the easily adjusted bottles. I measured and made actual performance graphs for the Cellwave version... so email me direct if you would like to talk more about it off the list. I'm using a number of the original as-built TX Combiners at various mountain top sites. They simply needed minor modifications and re-tuning. Some of the combiners racks (like a number of the Cellwave units I have) include receiver pre-selection. In many cases the receiver pre-selection will work for low power systems but is really not enough for 2 or more high powered transmitters in the typical close spaced Amateur Ap. The Aerial Systems Square Cavities mentioned in dcflux's post are really, really nice units with relatively much high Q compared to slightly smaller round cavities. But they are cumbersome to mount if you don't have the original mfgrs rack rails. I can post information and hints here if people are interested but it's probably more practical to yak off the list. Please feel free to (send food) email me direct. cheers, skipp skipp025 at yahoo.com Joe k1ike_mail@ wrote: I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike Yahoo! Groups Links
[Repeater-Builder] MTR2000 Backplane Fuse
The fuse you are describing is available from www.mouser.com part # 576-0459005.ER . It is a SMF type fuse. you will find them also in the Motorola P110, GP300 and GP350 portable radios but they are rated at 4 amps for the portables. I hope this information helps. N5SLI
[Repeater-Builder] Decibal Products Antenna website
Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: mailto:repeater-builder-dig...@yahoogroups.com mailto:repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Decibal Products Antenna website
Decibel Products got bought by Andrew Corp. Andrew got bought out by CommScope. www.andrew.com Also search for db224 that is probably the antenna you are referring to. Tony, KA3VOR -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Brian K. Gaskamp Sent: Wednesday, December 31, 2008 5:35 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Decibal Products Antenna website Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links
Re: [Repeater-Builder] Decibal Products Antenna website
Thanks Tony, actually I'm looking for a UHF antenna, any suggestions from that company. - Original Message - From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 4:41 PM Subject: RE: [Repeater-Builder] Decibal Products Antenna website Decibel Products got bought by Andrew Corp. Andrew got bought out by CommScope. www.andrew.com Also search for db224 that is probably the antenna you are referring to. Tony, KA3VOR -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Brian K. Gaskamp Sent: Wednesday, December 31, 2008 5:35 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Decibal Products Antenna website Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links
Re: [Repeater-Builder] Decibel Products Antenna website
Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld.com/ Kevin Custer Brian K. Gaskamp wrote: Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 AM
Re: [Repeater-Builder] Decibel Products Antenna website
Actually when I did a search on DB224 it took me to this site. http://www.wiscointl.com/decibel/dipoles/index.htm Thanks, Brian - Original Message - From: Kevin Custer To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 4:50 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld.com/ Kevin Custer Brian K. Gaskamp wrote: Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 AM
[Repeater-Builder] Re: Decibal Products Antenna website
Hi Brian, Folded Dipole antennas are/were made by a number of different companies... and of course be prepared for a bit of sticker shock. You're probably talking about the popular Decibel Antennas... for a quick reference look see this information on my web page: http://www.radiowrench.com/sonic/so02202.html And the repeater builder web page has copies of the mentioned antenna drawings available for free download. * If you can't find a decent price... Email me direct for a quote. I'm starting to stock a modest number of different commercial antennas... or I can get them fairly fast. cheers, skipp skipp025 at yahoo.com Brian K. Gaskamp ka5...@... wrote: Thanks Tony, actually I'm looking for a UHF antenna, any suggestions from that company. - Original Message - From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 4:41 PM Subject: RE: [Repeater-Builder] Decibal Products Antenna website Decibel Products got bought by Andrew Corp. Andrew got bought out by CommScope. www.andrew.com Also search for db224 that is probably the antenna you are referring to. Tony, KA3VOR -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Brian K. Gaskamp Sent: Wednesday, December 31, 2008 5:35 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Decibal Products Antenna website Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links
RE: [Repeater-Builder] Decibel Products Antenna website
Kevin are you sure about that? DB-- RFS? Phelps Dodge-- Celwave -- RFS and a few others. I'm pretty sure DB -- Andrew -- Commscope In fact running DB224 on www.andrew.com -- www.commscope.com/andrew/eng/index.html and drilling down to find the Base Station Antenna search tool http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 Running DB224 shows it as a product line there. Tony _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Wednesday, December 31, 2008 5:51 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld.com/ Kevin Custer Brian K. Gaskamp wrote: Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links http://groups.yahoo.com/group/Repeater-Builder/ Individual Email | Traditional http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) mailto:repeater-builder-dig...@yahoogroups.com mailto:repeater-builder-fullfeatu...@yahoogroups.com repeater-builder-unsubscr...@yahoogroups.com http://docs.yahoo.com/info/terms/ _ No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 AM
Re: [Repeater-Builder] Decibel Products Antenna website
Kevin may have started celebrating the New Year early ;-) - Original Message - From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 8:47 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Kevin are you sure about that? DB-- RFS? Phelps Dodge-- Celwave -- RFS and a few others. I'm pretty sure DB -- Andrew -- Commscope In fact running DB224 on www.andrew.com -- www.commscope.com/andrew/eng/index.html and drilling down to find the Base Station Antenna search tool http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 Running DB224 shows it as a product line there. Tony -- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Wednesday, December 31, 2008 5:51 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld.com/ Kevin Custer
RE: [Repeater-Builder] Decibel Products Antenna website
Not a bad idea for tonight! Have a pleasant one! _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Wednesday, December 31, 2008 8:53 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Kevin may have started celebrating the New Year early ;-) - Original Message - From: Tony mailto:talv...@worldnet.att.net Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 8:47 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Kevin are you sure about that? DB-- RFS? Phelps Dodge-- Celwave -- RFS and a few others. I'm pretty sure DB -- Andrew -- Commscope In fact running DB224 on www.andrew.com -- www.commscope.com/andrew/eng/index.html and drilling down to find the Base Station Antenna search tool http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 Running DB224 shows it as a product line there. Tony _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Wednesday, December 31, 2008 5:51 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld.com/ Kevin Custer
RE: [Repeater-Builder] Decibel Products Antenna website
Brian, That I believe (wisco intl) is a reseller. Tesco, Hutton Communications and others resell the antenna. Currently running a DB408-A (450-470) on a ham repeater here in Western PA (443.750-W3PIE) and only thing truly noticed is when comparing to business band repeaters operating same antenna at same level on tower with less power than this repeater is running has further range from the repeater site to distant points. It appears that a downtilt is occuring when operated in Ham Bands. (tower Site for my setup is 985' HAAT when factoring both sides of the mountain in- when looking at the western side of the mountain, HAAT to all points West is closer to 2000' HAAT and covers in excess of 90-100 miles to 100 W mobiles) Use http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 to help search the various antennas from Andew/Decibel Products and review the specs. Hope the info helps. Tony _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Brian K. Gaskamp Sent: Wednesday, December 31, 2008 6:15 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Actually when I did a search on DB224 it took me to this site. http://www.wiscointl.com/decibel/dipoles/index.htm Thanks, Brian - Original Message - From: Kevin Custer mailto:kug...@kuggie.com To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 4:50 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Decibel (1/10 of a Bel, of course) DB was absorbed by RFS some time ago: http://www.rfsworld http://www.rfsworld.com/ .com/ Kevin Custer Brian K. Gaskamp wrote: Hello all, maybe I'm misspelling the name of the company but I can't seem to find the company who makes the Decibal Products type of antennas. They are the antennas that have the folded diploes that are very popular on most amateur repeater sites. I always thought they were called DB products antennas, but maybe not. Can someone direct me to the correct site. Thanks a bunch. Brian KA5BKG Yahoo! Groups Links http://groups. http://groups.yahoo.com/group/Repeater-Builder/ yahoo.com/group/Repeater-Builder/ Individual Email | Traditional http://groups. http://groups.yahoo.com/group/Repeater-Builder/join yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) mailto:Repeater- mailto:repeater-builder-dig...@yahoogroups.com builder-dig...@yahoogroups.com mailto:Repeater- mailto:repeater-builder-fullfeatu...@yahoogroups.com builder-fullfeatu...@yahoogroups.com Repeater-Builder- mailto:repeater-builder-unsubscr...@yahoogroups.com unsubscr...@yahoogroups.com http://docs. http://docs.yahoo.com/info/terms/ yahoo.com/info/terms/ _ No virus found in this incoming message. Checked by AVG - http://www.avg. http://www.avg.com com Version: 8.0.176 / Virus Database: 270.10.1/1870 - Release Date: 12/31/2008 8:44 AM
Re: [Repeater-Builder] Decibel Products Antenna website
Tony, a corporate-fed antenna like the 408 will not exhibit downtilt or uptilt when operated out of it's design range, however, it will exhibit slightly less gain. Chuck WB2EDV - Original Message - From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 8:53 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Brian, That I believe (wisco intl) is a reseller. Tesco, Hutton Communications and others resell the antenna. Currently running a DB408-A (450-470) on a ham repeater here in Western PA (443.750-W3PIE) and only thing truly noticed is when comparing to business band repeaters operating same antenna at same level on tower with less power than this repeater is running has further range from the repeater site to distant points. It appears that a downtilt is occuring when operated in Ham Bands. (tower Site for my setup is 985' HAAT when factoring both sides of the mountain in- when looking at the western side of the mountain, HAAT to all points West is closer to 2000' HAAT and covers in excess of 90-100 miles to 100 W mobiles) Use http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 to help search the various antennas from Andew/Decibel Products and review the specs. Hope the info helps. Tony
[Repeater-Builder] Re: Decibal Products Antenna website
Skip, I have an older DB Products UHF dipole antenna. This one has six dipole elements fed from two splitters so that three elements are on each split. The main cable is RG8 moisture block, and each branch is like RG58, not labeled. The elements are made from what looks like angle aluminum stock. Secured to the mast with cast brackets and Ideal hose clamps. Any information? seems the dipoles are not in the correct spacing.
Re: [Repeater-Builder] Re: Decibal Products Antenna website
Optimum vertical spacing is between 0.85 and 0.95 wavelength as measured between element centers. This may or may not be possible due to constraints of the phasing harness, so you may have to settle for something else. Chuck WB2EDV - Original Message - From: motarolla_doctor echoco...@hotmail.com To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 9:04 PM Subject: [Repeater-Builder] Re: Decibal Products Antenna website Skip, I have an older DB Products UHF dipole antenna. This one has six dipole elements fed from two splitters so that three elements are on each split. The main cable is RG8 moisture block, and each branch is like RG58, not labeled. The elements are made from what looks like angle aluminum stock. Secured to the mast with cast brackets and Ideal hose clamps. Any information? seems the dipoles are not in the correct spacing. Yahoo! Groups Links
RE: [Repeater-Builder] Decibel Products Antenna website
Chuck, Reason I mentioned downtilt is two of the UHF antennas on the tower with same gain factor on 450-470 with downtilt in the design has similar coverage to this unit. I'll agree a reduction in gain will do the same. Thanks for the correction. Tony _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Wednesday, December 31, 2008 9:03 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Decibel Products Antenna website Tony, a corporate-fed antenna like the 408 will not exhibit downtilt or uptilt when operated out of it's design range, however, it will exhibit slightly less gain. Chuck WB2EDV - Original Message - From: Tony mailto:talv...@worldnet.att.net Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 8:53 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Brian, That I believe (wisco intl) is a reseller. Tesco, Hutton Communications and others resell the antenna. Currently running a DB408-A (450-470) on a ham repeater here in Western PA (443.750-W3PIE) and only thing truly noticed is when comparing to business band repeaters operating same antenna at same level on tower with less power than this repeater is running has further range from the repeater site to distant points. It appears that a downtilt is occuring when operated in Ham Bands. (tower Site for my setup is 985' HAAT when factoring both sides of the mountain in- when looking at the western side of the mountain, HAAT to all points West is closer to 2000' HAAT and covers in excess of 90-100 miles to 100 W mobiles) Use http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 to help search the various antennas from Andew/Decibel Products and review the specs. Hope the info helps. Tony
RE: [Repeater-Builder] MTR2000 Backplane Fuse
Pat, The part number you quoted is not the fuse for an MTR2000, and won't even fit the fuse holder. The correct fuse- there are two- is a Littelfuse type 453 NANO fuse rated at 5 amperes. Mouser carries this fuse as stock number 576-0453005.MR, for $ .67 each. The type 453 fuse CAN be surface mounted, but in the MTR2000, it plugs into a holder. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Pat Patterson Sent: Tuesday, December 30, 2008 10:55 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] MTR2000 Backplane Fuse The fuse you are describing is available from www.mouser.com part # 576-0459005.ER . It is a SMF type fuse. you will find them also in the Motorola P110, GP300 and GP350 portable radios but they are rated at 4 amps for the portables. I hope this information helps. N5SLI
Re: [Repeater-Builder] Decibel Products Antenna website
You could probably plot out the patterns on some graph paper just for something to do. It may make some sense, then again, maybe not. Been there, done that ;-) Chuck WB2EDV - Original Message - From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 9:06 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Chuck, Reason I mentioned downtilt is two of the UHF antennas on the tower with same gain factor on 450-470 with downtilt in the design has similar coverage to this unit. I'll agree a reduction in gain will do the same. Thanks for the correction. Tony
Re: [Repeater-Builder] Decibel Products Antenna website
Mike - I often wondered the same thing. I can only assume that it created the best pattern for each model. Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:16 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website While on the subject, a DB queston for y'all. I've asked a lot of techs this over the years and have gotten as many different answers. On a DB 410/420 uhf 16 loop antenna, some were sold with the top 4 sets of elements together in a row and the bottom 4 sets were in a row but were 90 deg to the top 4. On some other antennas they were sold where each set was 90 deg from each other, ie: element sets 1,3,5,7 were pointed together and 2,4,6,8 were pointed together. Does anybody know the real resaon? Is one way better than the other? Do they have different patterns? Thanks and HAPPY NEW YEAR to everybody. Mike
Re: [Repeater-Builder] Decibel Products Antenna website
On most of the ones I've seen, the model numbers were the same for both models. All of the elements can be rotated 90 or so deg if you want, but these are ones that came form the factory that way. ? Mike KB5FLX - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 9:27 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website Mike - I often wondered the same thing. I can only assume that it created the best pattern for each model. Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:16 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website While on the subject, a DB queston for y'all. I've asked a lot of techs this over the years and have gotten as many different answers. On a DB 410/420 uhf 16 loop antenna, some were sold with the top 4 sets of elements together in a row and the bottom 4 sets were in a row but were 90 deg to the top 4. On some other antennas they were sold where each set was 90 deg from each other, ie: element sets 1,3,5,7 were pointed together and 2,4,6,8 were pointed together. Does anybody know the real resaon? Is one way better than the other? Do they have different patterns? Thanks and HAPPY NEW YEAR to everybody. Mike
Re: [Repeater-Builder] Decibel Products Antenna website
Yes, the DB420's (in omni configuration) came with the top four pairs rotated 90-degrees from the bottom four. A DB-408 (in omni configuration) alternated the rotation for each element pair. It also shows this way in the photos in the catalog. Chuck WB2EDV - Original Message - From: Mike Dietrich To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 10:37 PM Subject: Re: [Repeater-Builder] Decibel Products Antenna website On most of the ones I've seen, the model numbers were the same for both models. All of the elements can be rotated 90 or so deg if you want, but these are ones that came form the factory that way. ? Mike KB5FLX
Re: [Repeater-Builder] Old 220-222Mhz ACSSB system parts usable?
Joe These should work fine. There is also a single cavity that was used in the receive line, IIRC. I have a complete system that I picked up to haul it off. The transceivers were made by SEA. Their stock answer is that they are not modifiable for any use other than what they were designed for. After a lot of research, I have to agree. Probably the only thing that is useable from the transceivers is parts, possibly a PA. I have not yet tried to retune the cavities, but the move is so small that I see no reason for them not to work. 73 Glenn WB4UIV At 10:42 AM 12/31/2008, you wrote: I have an opportunity to get a combiner/filter panel from a 220-222Mhz ACSSB system that was abandoned years ago. Has anyone experimented with making a 222Mhz duplexer out of the parts in the Celwave rack that was used in this system? 73, Joe, K1ike Yahoo! Groups Links
[Repeater-Builder] OT But Useful Site
I was surfing the WWW and found what I believe is a Great site and very Informative just put in Your City and look at all the Info about it So what makes it interesting to us in the Communications Hobby, Well We can now see Where some of the Signals are coming from that We hear on our Scanners and some even list the Freqs coming from the towers, , I found some New ones , Or maybe See what Freqs are being used on or Near our Repeater Freqs I know We could find all this info on the Web but this is all in one location I could go on and on why I found this site fun, and useful But I will just post it and Anyone can check it out for Yourself Have Fun http://www.city-data.com/ Put your info in the middle of page at Get a detailed profile of any city, county, or zip code: PS I was told by a Few Some zips Dont work just put in the City and State And the Good info is at the Bottom of the Page FCC Registered Cell Phone Towers FCC Registered Antenna Towers: FCC Registered Commercial Land Mobile Towers FCC Registered Private Land Mobile Towers FCC Registered Microwave Towers: FCC Registered Amateur Radio Licenses: FAA Registered Aircrafts: Don KA9QJG Wishing Everyone A Happy and Safe New Year
Re: [Repeater-Builder] Old 220-222Mhz ACSSB system parts usable?
At 08:17 PM 12/31/08, you wrote: Joe These should work fine. There is also a single cavity that was used in the receive line, IIRC. I have a complete system that I picked up to haul it off. The transceivers were made by SEA. Their stock answer is that they are not modifiable for any use other than what they were designed for. After a lot of research, I have to agree. Probably the only thing that is useable from the transceivers is parts, possibly a PA. I have not yet tried to retune the cavities, but the move is so small that I see no reason for them not to work. 73 Glenn WB4UIV I suggest you read this missive from K3MK regarding SEA equipment. http://f1.grp.yahoofs.com/v1/0E1cSZGhnVEAW6dh4ITDxBjVUploeJBFgLP9_4MHrEaLh1IGvMvi04I9tReZJGOKyM7equEku4n2s6ASv_M/FluX%20Research/SEA%20ESP1000%28M%29%2C%20ESP1100%28M%29%2C%20ESP-504/FluX%20Research%20Technical%20Service%20Bulletin%20-%20FXR-06.pdf He's well on his way to making it useful. I like the trick using the Mitrek channel element. I know Matt reads this yahoogroup. Maybe he will chime in and update us as to what's new on the project. Mike WA6ILQ
Re: [Repeater-Builder] OT But Useful Site
FWIW, none of this information shows for my community. - Original Message - So what makes it interesting to us in the Communications Hobby, Well We can now see Where some of the Signals are coming from that We hear on our Scanners and some even list the Freqs coming from the towers, , I found some New ones , Or maybe See what Freqs are being used on or Near our Repeater Freqs I know We could find all this info on the Web but this is all in one location I could go on and on why I found this site fun, and useful But I will just post it and Anyone can check it out for Yourself Have Fun http://www.city-data.com/ Put your info in the middle of page at Get a detailed profile of any city, county, or zip code: PS I was told by a Few Some zips Dont work just put in the City and State And the Good info is at the Bottom of the Page FCC Registered Cell Phone Towers FCC Registered Antenna Towers: FCC Registered Commercial Land Mobile Towers FCC Registered Private Land Mobile Towers FCC Registered Microwave Towers: FCC Registered Amateur Radio Licenses: FAA Registered Aircrafts: Don KA9QJG
