[Repeater-Builder] An interesting article request...
Repeater-builder received an interesting article request... Too many of the folks that have been doing it for a while forget that we all had to start somewhere. Everybody seems to know how to install Heliax connectors but us newbies. And sometime the newbies don't know who to ask. And sometimes the local repeater builders don't seem to have time to help a newbie. It seems like the the directions packed with the new connectors are oriented as a refresher to hose that have done them before, or maybe I'm just a little unsure of myself, never having done one before, and as expensive as the connectors are new I'm scared of screwing it up Has anybody thought of doing a photo article for us newbies on how to install a 1/2 or 7/8 connector on Heliax? Something like the W4ZT article but for the larger cables? BTW has he done one for N connectors? And since hams are cheap, is there any place to order replacement parts (like center pins or rubber seals)? Sometimes when you can aquire cut-off-connectors at Dayton (the ones with a few inches of cable in them) you find dried-out rubber seals... The W4ZT article that the sender is referring to is at http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html Anybody up to doing one set of photos for 1/2 cable and a second set for 7/8 cable? And a text commentary on each? And maybe a third set on putting an N connector on superflex? Or any other common (or uncommon) feedline connector (like a DIN connector) Mike WA6ILQ
Re: [Repeater-Builder] An interesting article request...
Hi You Might try these folks for the seals and pins. TESSCO.COM KA4DKJ Ralph - Original Message - From: Ronny Julian Sent: Monday, October 29, 2007 8:08 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] An interesting article request... If Tony is out there listening... I have two connectors and a roll of 1/2 inch Andrews that need installation. See me this weekend and I'll bring the needed items and a digital camera to the hamfest. Over K4RJJ Ronny Mike Morris WA6ILQ wrote: Repeater-builder received an interesting article request... Too many of the folks that have been doing it for a while forget that we all had to start somewhere. Everybody seems to know how to install Heliax connectors but us newbies. And sometime the newbies don't know who to ask. And sometimes the local repeater builders don't seem to have time to help a newbie. It seems like the the directions packed with the new connectors are oriented as a refresher to hose that have done them before, or maybe I'm just a little unsure of myself, never having done one before, and as expensive as the connectors are new I'm scared of screwing it up Has anybody thought of doing a photo article for us newbies on how to install a 1/2 or 7/8 connector on Heliax? Something like the W4ZT article but for the larger cables? BTW has he done one for N connectors? And since hams are cheap, is there any place to order replacement parts (like center pins or rubber seals)? Sometimes when you can aquire cut-off-connectors at Dayton (the ones with a few inches of cable in them) you find dried-out rubber seals... The W4ZT article that the sender is referring to is at http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html Anybody up to doing one set of photos for 1/2 cable and a second set for 7/8 cable? And a text commentary on each? And maybe a third set on putting an N connector on superflex? Or any other common (or uncommon) feedline connector (like a DIN connector) Mike WA6ILQ
Re: [Repeater-Builder] Zetron 38A Programming
Al, I would program the Z38A the way you have with one change. I am sure the system ID should be the same as the user ID, so instead of assigning the system ID to an unused user ID, I would use the user ID as the system ID. Just enter the user number for the tone you are using for normal user use in the system ID and that should work. I have had no case of the ID going away completely like you mention. I have never used the system ID except for long enough to see that it caused an ID every interval entered for the ID. The user ID runs at the end of the first transmission the user makes and will not run again until the ID interval expires. There will be no user ID after the ID timer for the user expires, only after the end of the next transmission the user makes. If you wanted to identify each user on the system, I guess you could assign a different tone access to each user and then enable the DTMF user ID at the end of each transmission. If you had a DTMF readout on a receiver listening to the repeater, you could identify each user that way. I don't remember if you could assign a different ID interval to the system ID from the user ID, but at the end of the first transmission a user makes, you could send his CW ID and have him identified each time he starts a session on the repeater and every ID interval after that. The first thing I did on setting up my Z38As was to go through the manual I found at the repeater-builders site (courtesy Eric Lemmon) and verify each command that my unit will respond to. I found that the manual was for a later model Z38A than the ones I have, and my units respond to a sub-set of the commands found in the manual. In particular, my units will not operate open squelch, you must have a tone to get into them. The later model units will allow you to enable user 0 and have the repeater operate with just the COR input and no tone. I have never considered using the individual user ID in an amateur radio application. I just entered the repeater callsign in each tone frequency I enabled. The reason we even have more than one tone enabled is to allow different uses of the repeater. Normal operation requires one tone, while operation of the EchoLink interface requires a different tone. And special use of the repeater for Search and Rescue operations uses a third tone so that the operating time for this mode can be reported as verified emergency operations to our site sponsor. We have a requirement at one site to report all emergency operations to help validate the need for the site, and the power it consumes. By the way, the ID is transmitted with a tone when it is enabled, so for the EchoLink tone we disable the ID in the Z38A for that tone and let EchoLink ID the repeater when that mode is in use. This prevents the ID from being transmitted down the in-band link to EchoLink, but any other use of the repeater on the other tone freqs will result in a normal repeater generated ID. If the Z38A is configured to not transmit the tone during the squelch tail, no problems with an in-band link into EchoLink occur. 73 - Jim W5ZIT radiotech808 [EMAIL PROTECTED] wrote: Hi All, Jim maybe one for you ? New Zetron 38A installed this morning so great to have the repeater back on again until I repair the other logic since we still require 1750Hz access I have managed to get a bit lost in the programming of the unit ( not a good idea to do programming after you first get out of bed !) Once again what I require morse id every 15 min's ( becon mode ) which I think is the system id, which is then assigned to a user ie a user who is enabled but reserved. Once the repeater is opened up a morse id for the current user ever over or every 3 mins What I am finding (with my programming) is system id every 15 mins which changes once the repeater panel is used no morse after the user has accessed the radio ! Regards Al __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [Repeater-Builder] An interesting article request...
With RingFlare connectors it is basically the same procedure for 1/2 and 7/8, DIN and N. The main thing is to strip the correct amount of insulation off and the center conductor needs to be the proper length. Although when you first look at the instruction sheet it is confusing, once you read them over again it should all come to light. It isnt hard, guys change them out 300 feet up on towers every day. One thing that often gets overlooked is to make sure that the foam is clean of any metal filings, I use the sticky side of some tape to remove that. It is amazing to look at the tape once you have done it and see how much metal was on the foam. Mike Morris WA6ILQ wrote: Repeater-builder received an interesting article request... Too many of the folks that have been doing it for a while forget that we all had to start somewhere. Everybody seems to know how to install Heliax connectors but us newbies. And sometime the newbies don't know who to ask. And sometimes the local repeater builders don't seem to have time to help a newbie. It seems like the the directions packed with the new connectors are oriented as a refresher to hose that have done them before, or maybe I'm just a little unsure of myself, never having done one before, and as expensive as the connectors are new I'm scared of screwing it up Has anybody thought of doing a photo article for us newbies on how to install a 1/2 or 7/8 connector on Heliax? Something like the W4ZT article but for the larger cables? BTW has he done one for N connectors? And since hams are cheap, is there any place to order replacement parts (like center pins or rubber seals)? Sometimes when you can aquire cut-off-connectors at Dayton (the ones with a few inches of cable in them) you find dried-out rubber seals... The W4ZT article that the sender is referring to is at http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html Anybody up to doing one set of photos for 1/2 cable and a second set for 7/8 cable? And a text commentary on each? And maybe a third set on putting an N connector on superflex? Or any other common (or uncommon) feedline connector (like a DIN connector) Mike WA6ILQ http://groups.yahoo.com/group/Repeater-Builder/message/76271;_ylc=X3oDMTM1cDBjNHRpBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEbXNnSWQDNzYyNzEEc2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMTkzNjU2Nzg4BHRwY0lkAzc2Mjcx http://groups.yahoo.com/group/Repeater-Builder/post;_ylc=X3oDMTJkM2Y0ZWgxBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA2Z0cgRzbGsDbnRwYwRzdGltZQMxMTkzNjU2Nzg4
Re: [Repeater-Builder] An interesting article request...
Yes Mike... I'll put my hand up if this article I have here is of any use. It's an old yellowed original bulletin # 37383C by Andrew Communication, with explicit instructions on preparing fitting N connectors to LDF4-50A Heliax. I did a quick search on their web page, but it didn't come up. It may take some time to iron out the crinkles, but I'll have a go just for the practice. Also, I've been given permission to copy 3 pages from a VHF group's news letter, where one ingenious fella fitted a RG213 N connector to 1/2 Heliax..pixs and all. It just might be worth a spot in the archives and someone might like to sweep it and see if there are any impedance bumps. I have never uploaded anything to your pages, so may need some help. 73 John/VK4JKL Mike Morris WA6ILQ wrote: Repeater-builder received an interesting article request... Too many of the folks that have been doing it for a while forget that we all had to start somewhere. SNIP The W4ZT article that the sender is referring to is at http://www.repeater-builder.com/antenna/w4zt-superflex/superflex-pl-connector.html Anybody up to doing one set of photos for 1/2 cable and a second set for 7/8 cable? And a text commentary on each? And maybe a third set on putting an N connector on superflex? Or any other common (or uncommon) feedline connector (like a DIN connector) Mike WA6ILQ
Re: [Repeater-Builder] Daniel's repeater
sounds like you talked to the same person I talked to and I was doing a business system. John - Original Message - From: Nate Duehr [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 2:47 AM Subject: Re: [Repeater-Builder] Daniel's repeater On Oct 28, 2007, at 4:12 PM, R. K. Brumback wrote: Until a couple of days ago I never heard of a “Daniel’s” repeater. I am looking for a new VHF analog repeater and one of my friends mentioned Daniel which is in Canada. Is anyone familiar with this company and their products? No essays, but just looking for a short “Yes their great” or “Don’t even think about them. Many thanks in advance. Randy They're used in a lot of commercial and government applications where low current draw is a plus. (Solar powered mountain-top sites.) They apparently have decent specifications and those that I'd talked to that have used them, liked them... generally. They're hideously expensive, and they don't entertain the idea of Amateur discounts. (At least the very snooty sales rep I talked with, didn't. And at the time I was seriously considering plunking down big bucks for one, too.) Their modular design looks useful for troubleshooting/repairs, if you can afford to keep spare modules around. -- Nate Duehr, WY0X [EMAIL PROTECTED] Yahoo! Groups Links 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:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * 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] 220 amps on E-Bay, dirt cheap!
Just spotted the following on E-Bay while searching for heatsink material: Spectra Communications 50 watt 220 repeater amp with heatsink, presumed defective (failed under intermittent operation). Being sold for heatsink value, but probably repairable Currently at $12.95 with no bids, 3 available. Ad says equivalent to Moto MX800? Item number 180173021724 Note: I have no connection with this auction: I just saw it and thought someone here might be interested. George, KA3HSW / WQGJ413
[Repeater-Builder] New file uploaded to Repeater-Builder
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Repeater-Builder group. File: /Andrew bulletin 37383C.pdf Uploaded by : johngielis [EMAIL PROTECTED] Description : Fitting LDF4-50A You can access this file at the URL: http://groups.yahoo.com/group/Repeater-Builder/files/Andrew%20bulletin%2037383C.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, johngielis [EMAIL PROTECTED]
[Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!!
Last week we installed one Kenwood TKR 750 (Type 2)in our nearby airport for the use of the security organisation. The Tx is in 143.95 and Rx is in 148.950. The antenna is Diamond F22 without any trimming (144Mhz). The Repeater delivers 20Watt into the duplexer of local manufacture and 15watts is loded to the F22. SWR 1.1 !! To avoid any local noise, we done the QT/DQT with first tone (67)in the whole fleet (92 handies) and coutesy tone for indetifying the RPT access. The mounting is done at a height of approx 60 feet from the ground on the Fire watch tower in the eastern side of the runway (Runway is East West and on the Southern side of the building) The coverage in the open space is excellent and extends to more than 10km out side the Airport through the surronding thick vegitation of Coconut trees and buildings When we started the coverage test inside the building, the Domestic terminal in the eastern side (approx two kilometersfrom the antenna) gave very good hope. But when we tried in the western part of the same building, lot of blank spots were noticed in the ground floor, in the middle of the building. If you move two feet to this side or other it works fine. Just get out of the building to the to the verenda-59 report. In many areas the the Repeater triggers and clean Courtesy tone is received, but the modulation is very noisy and beyond readability. One suggestion is to shift the antenna to the top of the terminal building itself, which is 5 floors and of thick concrete, with lot of AC ducts. ( The required coverage area will be just five floors below the antenna) Can you suggest solutions for extending the coverage to inside of the building to avoid the blank spots? PETER VU2PJP POBOX 68, PALAKKAD 678 001, KERALA, INDIA. HP: 91-094470 65426
Re: [Repeater-Builder] Daniel's repeater
In a nutshell, yes they're great. The documentation you get with the station is wonderful, too. We have been using them here in Missouri for two years now and not any problems with them. They are known for their low current consumption. If they don't make an amplifier that suits your needs, they recommend Crescend amplifiers. Again, highly recommended. On 10/28/07, R. K. Brumback [EMAIL PROTECTED] wrote: Until a couple of days ago I never heard of a Daniel's repeater. I am looking for a new VHF analog repeater and one of my friends mentioned Daniel which is in Canada. Is anyone familiar with this company and their products? No essays, but just looking for a short Yes their great or Don't even think about them. Many thanks in advance. Randy No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1096 - Release Date: 10/27/2007 11:02 AM -- James Adkins, KB0NHX Vice-President Repeater Trustee Nixa Amateur Radio Club, Inc. (KC0LUN) District 1 Technical Field Engineer Troop A--Lee's Summit; Troop H--St. Joseph Missouri State Highway Patrol 504 SE Blue Parkway Lee's Summit, MO 64063 816-622-0707 ext. 235 417-840-5261 (Cell) The Nixa Amateur Radio Club--we're not just a thermometer reflecting the health of ham radio in SW MO, we're the thermostat effecting positive change in ham radio and disaster communications Those saying it can't be done should stay out of the way of those doing it --Chinese proverb accepted and adhered to by the Nixa Amateur Radio Club, Inc., A 501(c)(3) organization working together with the community to enhance the robustness of Southwest Missouri Emergency Communications
[Repeater-Builder] Transmitter Identification
Does anyone use a transmitter identification system on your repeaters to id the incoming signals? Thanks Bernie K2YO
[Repeater-Builder] Re: Data Signal,Inc. CWID-70 Manual needed.
I have one also. I need a manual and programming info. It has a M3-7603-5 chip in it. I think it it contains the callsign and timing info. ...Keith WE6R --- In Repeater-Builder@yahoogroups.com, Don [EMAIL PROTECTED] wrote: I have a Fellow Ham looking for Info on this Unit, The sad thing is I had one and the Manual, and actually ordered a New ROM With My call on it, But I cannot find the info it is tough getting old Any info would be greatly appreciated Thanks Don KA9QJG
Re: [Repeater-Builder] Daniel's repeater
We are currently using about 12 Daniel's MT 3 VHF/UHF repeaters on our system (islandtrunksystem.org) Quality / Outstanding Reliability / Outstanding Price / not cheap http://www.danelec.com/ Our last delivery period was 16 - 18 weeks but well worth the wait. This is top quality eqiupment and the Daniel's Company treats amateurs very well. Sorry but the cost is in Canadian $$$ Roger VA7RS . "R. K. Brumback" wrote: Until a couple of days ago I never heard of a Daniels repeater. I am looking for a new VHF analog repeater and one of my friends mentioned Daniel which is inCanada. Is anyone familiar with this company and their products? No essays, but just looking for a short Yes their great or Dont even think about them. Many thanks in advance. Randy No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1096 - Release Date: 10/27/2007 11:02 AM No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1096 - Release Date: 10/27/2007 11:02 AM inline: C:\DOCUME~1\Stacy\LOCALS~1\Temp\nsmailLL.gifinline: C:\DOCUME~1\Stacy\LOCALS~1\Temp\nsmailEV.gif
Re: [Repeater-Builder] Daniel's repeater
In a not so long ago life I had a number of them to maintain around the State of Colorado, all at very high, remote, solar sites. They were extremely dependable and worked well in both analog and P25. At one site, lightning took out the solar controller two different times, but the Daniels came right back up both times after the solar controller was replaced and the batteries charged up a bit. Harry On Oct 28, 2007, at 4:12 PM, R. K. Brumback wrote: Until a couple of days ago I never heard of a “Daniel’s” repeater. 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:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * 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] KENWOOD TKR 750 Installation and problems-HELP!!
One suggestion is to go to a simple ground plane antenna, and mount it upside down on top of your terminal building. The gain in an antenna will concentrate the radiation out on the horizon, which is not what you want. The upside down ground plane with no gain might be your best bet to have local coverage and have coverage directly beneith the antenna. 73 - Jim W5ZIT Peter P J [EMAIL PROTECTED] wrote: Last week we installed one Kenwood TKR 750 (Type 2)in our nearby airport for the use of the security organisation. The Tx is in 143.95 and Rx is in 148.950. The antenna is Diamond F22 without any trimming (144Mhz). The Repeater delivers 20Watt into the duplexer of local manufacture and 15watts is loded to the F22. SWR 1.1 !! To avoid any local noise, we done the QT/DQT with first tone (67)in the whole fleet (92 handies) and coutesy tone for indetifying the RPT access. The mounting is done at a height of approx 60 feet from the ground on the Fire watch tower in the eastern side of the runway (Runway is East West and on the Southern side of the building) The coverage in the open space is excellent and extends to more than 10km out side the Airport through the surronding thick vegitation of Coconut trees and buildings When we started the coverage test inside the building, the Domestic terminal in the eastern side (approx two kilometersfrom the antenna) gave very good hope. But when we tried in the western part of the same building, lot of blank spots were noticed in the ground floor, in the middle of the building. If you move two feet to this side or other it works fine. Just get out of the building to the to the verenda-59 report. In many areas the the Repeater triggers and clean Courtesy tone is received, but the modulation is very noisy and beyond readability. One suggestion is to shift the antenna to the top of the terminal building itself, which is 5 floors and of thick concrete, with lot of AC ducts. ( The required coverage area will be just five floors below the antenna) Can you suggest solutions for extending the coverage to inside of the building to avoid the blank spots? PETER VU2PJP POBOX 68, PALAKKAD 678 001, KERALA, INDIA. HP: 91-094470 65426 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
[Repeater-Builder] Re: KENWOOD TKR 750 Installation and problems-HELP!!
A quick answer Peter... Buy an antenna power splitter similar to the type sold by M-Squared Antennas in California. Place the splitter into the antenna system and run a second antenna inside the building. cheers, skipp Peter P J [EMAIL PROTECTED] wrote: Last week we installed one Kenwood TKR 750 (Type 2)in our nearby airport for the use of the security organisation. The Tx is in 143.95 and Rx is in 148.950. The antenna is Diamond F22 without any trimming (144Mhz). The Repeater delivers 20Watt into the duplexer of local manufacture and 15watts is loded to the F22. SWR 1.1 !! To avoid any local noise, we done the QT/DQT with first tone (67)in the whole fleet (92 handies) and coutesy tone for indetifying the RPT access. The mounting is done at a height of approx 60 feet from the ground on the Fire watch tower in the eastern side of the runway (Runway is East West and on the Southern side of the building) The coverage in the open space is excellent and extends to more than 10km out side the Airport through the surronding thick vegitation of Coconut trees and buildings When we started the coverage test inside the building, the Domestic terminal in the eastern side (approx two kilometersfrom the antenna) gave very good hope. But when we tried in the western part of the same building, lot of blank spots were noticed in the ground floor, in the middle of the building. If you move two feet to this side or other it works fine. Just get out of the building to the to the verenda-59 report. In many areas the the Repeater triggers and clean Courtesy tone is received, but the modulation is very noisy and beyond readability. One suggestion is to shift the antenna to the top of the terminal building itself, which is 5 floors and of thick concrete, with lot of AC ducts. ( The required coverage area will be just five floors below the antenna) Can you suggest solutions for extending the coverage to inside of the building to avoid the blank spots? PETER VU2PJP POBOX 68, PALAKKAD 678 001, KERALA, INDIA. HP: 91-094470 65426
Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!!
Make sure the duplexer is connected to the correct ports of the repeater.
[Repeater-Builder] Re: MSR2000 + Controller Mushy Audio
The MSR-2000 to external repeater article on the www.radiowrench.com/sonic page has a scanned image of the Squelch Gate Module included. The instructions also mention how a resistor in series with the output is removed and the controller input/output audio paths are simply inserted in place of the resistor. Couldn't be more simple. s. WD7F - John in Tucson [EMAIL PROTECTED] wrote: Mushy sounds like there's too much de-emphasis. Make sure you don't have any de-emphasis going on in the controller, either at the RX audio amp or the TX amp. I have a MSR2000 with a CAT controller and the interface via the squelch gate card and it sounds great. Have you followed the alignment of the exciter/deviation as per the manual on the 2000 so that you have the proper compression of the audio and the deviation limited to ~5K, etc.? If you don't have a manual that is a problem. de WD7F John in Tucson - Original Message - From: atms169 [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 28, 2007 7:23 PM Subject: [Repeater-Builder] MSR2000 + Controller Mushy Audio Hey guys, thanks for all the tips on the MSR2000 conversion. I now have a running MSR2000 and NHRC-5 controller. I have one problem.. the audio sounds mushy, almost emphasized. I tapped in to pin 17 from the Squelch Card but, I think I'm not getting a clean signal. Is there a better spot to tap in to? I read somewhere I might need to remove a resistor off the Squelch Card but, I have no manuals for this. Any help appreciated thanks! Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.12/1097 - Release Date: 10/28/2007 1:58 PM
[Repeater-Builder] For Sale: RCA 500 Series UHF Repeaters
Hi, I have several RCA UHF repeaters available for sale..cheap. These are working units removed from commercial service in 2005. Most have a Zetron controller installed in the cabinet; those can be had as an option with the repeater. Service literature is also available. These machines are old to be sure, but they're very reliable. Some say the RCA audio is second to none. I have a friend in Georgia who has several of these on the air, and prefers them to the more commonly used Motorola and G.E. gearto each his own. I'm asking $75 each for the repeaters, $175 with a Zetron controller. They need to go, I need the space. http://www.people.vanderbilt.edu/~robin.midgett/index.htm Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
[Repeater-Builder] More Program Resources
http://www.pcb-pool.com/html_uk/uk_service_1.htm There's a lot of nice electronics programs out there for free. Above is another great source... s.
[Repeater-Builder] Re: More Program Resources
The below post went to the wrong yahoo group... but what the heck. If this sort of thing interests you... please have at. cheers, skipp skipp025 [EMAIL PROTECTED] wrote: http://www.pcb-pool.com/html_uk/uk_service_1.htm There's a lot of nice electronics programs out there for free. Above is another great source... s.
Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!!
Hi, Jim... I'm trying to do the same thing, to cover the interior of a 6-floor building with a LMR VHF repeater, and I tried suggesting a 1/4 wave mounted upside down as you suggested, and the Motorola guy scratched his head and said WTHeck? He was still trying to sell me a DB224 to cover the inside of the building. :-( Thanks for the confirmation! _Ray_KBØSTN - Original Message - From: Jim Brown To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 11:22 AM Subject: Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!! One suggestion is to go to a simple ground plane antenna, and mount it upside down on top of your terminal building. The gain in an antenna will concentrate the radiation out on the horizon, which is not what you want. The upside down ground plane with no gain might be your best bet to have local coverage and have coverage directly beneith the antenna. 73 - Jim W5ZIT
Re: [Repeater-Builder] Zetron 38A Programming
Jim, Thanks once again for the input help As it stands tonight the repeater is operational after 5 hours at site setting up the audio again problem is the base station we use is not that forgiving with is comes to audio levels (Nokia BSR 150) On the older Zetron panel which was the basic 38 I could go onto the board do further adjustment although the newer 38A does not have any pots to adjust so out with the resister box a good set of ears As the station ID it has settled down to every 15 minutes although the Morse is going out at around 22 words a minute, awaiting call back from Zetron to see if I can adjust the timer speed on this apart from using the enabled user number Get on very well with Zetron here in the UK as used to use them with my last company so when it comes to support manuals they are very happy to help me out ( I aways have them laughing on the phone when I call so I have never been forgotten even there operator knows me by first name before saying who I am) Awaiting a call back email from Jose at tech support, one thing I did find out is there are hidden menus passwords so once I get that information I will pass it on to yourself. Jim I would rather leave the Zetron on site as we have major problems with transients like the site goes onto generator during working hour the back onto the grid after with has caused endless problems which I think was the main cause of the original logic (RC210) going u/s least the Zetron would cope well In all the year of looking after commercial repeater sites I have not had one go down yet Right time for bed here so better move PS For you information the repeater is GB3FF it does run on echo-link but just moved home so awaiting the antenna to go up so off line just now oh if you fancy having a look at the set up www.csfmg.com it will give you an idea on how things run here in Scotland Many thanks once again Jim your help is much appreciated Best Regards Al Jim Brown [EMAIL PROTECTED] wrote: Al, I would program the Z38A the way you have with one change. I am sure the system ID should be the same as the user ID, so instead of assigning the system ID to an unused user ID, I would use the user ID as the system ID. Just enter the user number for the tone you are using for normal user use in the system ID and that should work. I have had no case of the ID going away completely like you mention. I have never used the system ID except for long enough to see that it caused an ID every interval entered for the ID. The user ID runs at the end of the first transmission the user makes and will not run again until the ID interval expires. There will be no user ID after the ID timer for the user expires, only after the end of the next transmission the user makes. If you wanted to identify each user on the system, I guess you could assign a different tone access to each user and then enable the DTMF user ID at the end of each transmission. If you had a DTMF readout on a receiver listening to the repeater, you could identify each user that way. I don't remember if you could assign a different ID interval to the system ID from the user ID, but at the end of the first transmission a user makes, you could send his CW ID and have him identified each time he starts a session on the repeater and every ID interval after that. The first thing I did on setting up my Z38As was to go through the manual I found at the repeater-builders site (courtesy Eric Lemmon) and verify each command that my unit will respond to. I found that the manual was for a later model Z38A than the ones I have, and my units respond to a sub-set of the commands found in the manual. In particular, my units will not operate open squelch, you must have a tone to get into them. The later model units will allow you to enable user 0 and have the repeater operate with just the COR input and no tone. I have never considered using the individual user ID in an amateur radio application. I just entered the repeater callsign in each tone frequency I enabled. The reason we even have more than one tone enabled is to allow different uses of the repeater. Normal operation requires one tone, while operation of the EchoLink interface requires a different tone. And special use of the repeater for Search and Rescue operations uses a third tone so that the operating time for this mode can be reported as verified emergency operations to our site sponsor. We have a requirement at one site to report all emergency operations to help validate the need for the site, and the power it consumes. By the way, the ID is transmitted with a tone when it is enabled, so for the EchoLink tone we disable the ID in the Z38A for that tone and let EchoLink ID the repeater when that mode is in use. This prevents the ID from being
Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!!
We have done numerous installation of small in-building repeaters in high rise buildings in New York City. We drop cheap rg213 down the elevator shaft, securing it of course, and about every 3 floors install a T connector with a 1/4 wave antenna made of solid wire soldered into a PL259. works 100% every time, and so cheap to do. Lance N2HBA - Original Message - From: Ray Brown To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 9:13 PM Subject: Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!! Hi, Jim... I'm trying to do the same thing, to cover the interior of a 6-floor building with a LMR VHF repeater, and I tried suggesting a 1/4 wave mounted upside down as you suggested, and the Motorola guy scratched his head and said WTHeck? He was still trying to sell me a DB224 to cover the inside of the building. :-( Thanks for the confirmation! _Ray_KBØSTN - Original Message - From: Jim Brown To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 11:22 AM Subject: Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!! One suggestion is to go to a simple ground plane antenna, and mount it upside down on top of your terminal building. The gain in an antenna will concentrate the radiation out on the horizon, which is not what you want. The upside down ground plane with no gain might be your best bet to have local coverage and have coverage directly beneith the antenna. 73 - Jim W5ZIT
[Repeater-Builder] Re: CWID-70 Manual needed.
I wonder if the CWID-70 is a later version of the CWID-50 made by Control Signal, Inc. A new PROM chip programmed with your desired info costs about $25 from CSI. Here's the manual for the latter: www.repeater-builder.com/other-mfrs/csc-cwid-50-51-identifiers.pdf 73, Eric Lemmon WB6FLY --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Don [EMAIL PROTECTED] wrote: I have a Fellow Ham looking for Info on this Unit, The sad thing is I had one and the Manual, and actually ordered a New ROM With My call on it, But I cannot find the info it is tough getting old Any info would be greatly appreciated Thanks Don KA9QJG
RE: [Repeater-Builder] Transmitter Identification
Bernie, Yes, I use MDC1200 coding on every portable and mobile radio in my fleet. For convenience, I use the last four digits of the serial number as its ID number. All radios use pre-ID with a short beep to let the user know when to start speaking. Although I have a printer interface on the ID display unit, I normally just use my HT1250 to see which radio is keyed. If a user is not following proper comm procedures, I can call just that one radio if I want to, or even shut it down if necessary. Since most users know that I can ID a radio, such mischief is practically non-existent. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Bernie Hunt Sent: Saturday, October 27, 2007 10:11 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Transmitter Identification Does anyone use a transmitter identification system on your repeaters to id the incoming signals? Thanks Bernie K2YO
Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!!
get yourself some of the hard-line that has holes in the shield to let some RF out and install it in your building. what is what it is made for. John - Original Message - From: Ray Brown To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 10:13 PM Subject: Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!! Hi, Jim... I'm trying to do the same thing, to cover the interior of a 6-floor building with a LMR VHF repeater, and I tried suggesting a 1/4 wave mounted upside down as you suggested, and the Motorola guy scratched his head and said WTHeck? He was still trying to sell me a DB224 to cover the inside of the building. :-( Thanks for the confirmation! _Ray_KBØSTN - Original Message - From: Jim Brown To: Repeater-Builder@yahoogroups.com Sent: Monday, October 29, 2007 11:22 AM Subject: Re: [Repeater-Builder] KENWOOD TKR 750 Installation and problems-HELP!! One suggestion is to go to a simple ground plane antenna, and mount it upside down on top of your terminal building. The gain in an antenna will concentrate the radiation out on the horizon, which is not what you want. The upside down ground plane with no gain might be your best bet to have local coverage and have coverage directly beneith the antenna. 73 - Jim W5ZIT
