[Repeater-Builder] Updated repeater-builder page work fine for me
As of April 13, 2010 the updated http://www.repeater-builder.com page works fine for me. It took me a few seconds before it redirected to http://www.repeater-builder.com/rbtip/ page. 73, KD6AAJ
Re: [Repeater-Builder] Cooling Fans, which brand?
I prefer the Dayton 24 vdc fans, but feed them with 12 vdc. That way they are more quiet and they will last for quite some time. Get the good ball-bearing fans to extend fan life as well. We use them to cool our exciter radios and PA's at our sites and have not had one fail yet in 6 years. If you can program your controller to turn the fans on and off with PTT, you'll also extend fan life further. On Tue, Apr 13, 2010 at 12:43 AM, kq7dx kq...@yahoo.com wrote: Hello to group, Anyone have a brand they recomend for a no noise, reliable fan. I didnt know whether to go with brushless,ball bearing,AC, or DC etc. Also should the power leads be sheilded and have a separate supply if DC.. Any filters recomended also.. This is my first repeater and am now into the cooling part of the project. Thanks for all the help.. 73s -- James Adkins, KB0NHX Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN) www.nixahams.net Southern Missouri Assistant Frequency Coordinator - Missouri Repeater Council www.missourirepeater.org The Nixa Amateur Radio Club - There is no charge for awesomeness! (Well, only $1.00 per month)
[Repeater-Builder] Re: Cooling Fans, which brand?
Anyone have a brand they recomend for a no noise, reliable fan. I didnt know whether to go with brushless,ball bearing,AC, or DC etc. Also should the power leads be sheilded and have a separate supply if DC.. Any filters recomended also.. This is my first repeater and am now into the cooling part of the project. By far the best approach is no fan at all, that is, use passive cooling and just a big enough cooling block that it simply doesn't heat up enough to be an issue. You should be able to key-up the TX for a few days and not even have to worry about the temperature, that's what I do even before considering putting anything on a building or a hill. Repeatersites are seldom clean and fans just clog, They push dirt at places you really don't want any, and if they fail you'll be none the wiser. You really are better off without a fan at all. Consider fans with a tacho-output. This will pulse on every turn and you can fix your controller to warn if the fan should be running (and the pulses are missing - i.e. the fan isn't running). Brand-wise I found fans by EBM-PABST a lot more reliable than the typical Asian counterpart. Go for ball-bearing fans, not sleeve-bearing, they typically only last 2 hours. PABST does publish realiability numbers on their datasheets - I suggest you do the math first. Oh, plan to visit the repeater site every year to change fans? I would think not, some of my repeaters I don't even have access to, requiring coordination et all. Apart from temperature, *temperature-cycling*, i.e. heating up during a log of activity and cooling down, is your big killer. As things don't grow and schrink the same way on temp rise, temp changes cause stress. For one, if you use RF power modules, make sure the leads are not tight, but use a little bow so the leads can bend (instead of stretch) with temp changes. Enough? 73, Geert Jan PE1HZG
[Repeater-Builder] DC power cord HKN4137A
Anyone have a suggestion for a less expensive alternative to the standard Motorola power cord? lh
RE: [Repeater-Builder] Zetron Controller Connector-Source
tks, eric, but i was just confirming the correct description of the pin. i am very familiar with z38max . i have 15 in actual use!! 73 jose --- On Tue, 4/13/10, Eric Vincent eric...@telus.net wrote: From: Eric Vincent eric...@telus.net Subject: RE: [Repeater-Builder] Zetron Controller Connector-Source To: Repeater-Builder@yahoogroups.com Date: Tuesday, April 13, 2010, 12:59 AM Hello Jose, Yes, your right, it’s only a 15 pin strait in line connector. I’ve looked on my manual… I have this type of connector in my stock, please contact me offline for an arrangement. 73’ Eric VE7YBC ericvin AT telus DOT net De : Repeater-Builder@ yahoogroups. com [mailto: Repeater-Builder@ yahoogroups. com ] De la part de Jose Aguilar Envoyé : 12 avril 2010 13:29 À : Repeater-Builder@ yahoogroups. com Objet : Re: [Repeater-Builder] Zetron Controller Connector-Source Z38 is 15 pin (orange) in straight line From: La Rue Communications laruec...@gmail. com To: Repeater-Builder@ yahoogroups. com Sent: Mon, April 12, 2010 11:51:21 AM Subject: Re: [Repeater-Builder] Zetron Controller Connector-Source Would that be 8 on bottom row, 7 on top row? Orange 15 pin connector? I can check as well. John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 - Original Message - From: Eric Vincent To: Repeater-Builder@ yahoogroups. com Sent: Monday, April 12, 2010 10:49 AM Subject: RE: [Repeater-Builder] Zetron Controller Connector-Source Hello, How many pin is that connector, I think I have some of these in the inventory… 73’ Eric VE7YBC From: Repeater-Builder@ yahoogroups. com [mailto:Repeater- buil...@yaoogrou ps.com] On Behalf Of tracomm Sent: Monday, April 12, 2010 10:33 AM To: Repeater-Builder@ yahoogroups. com Subject: [Repeater-Builder] Zetron Controller Connector-Source Any one have a source for the Zetron interface connector (orange 15 pin) used on most versions, 38, 38A, 38 Max ?? GMRSINC __ Information from ESET NOD32 Antivirus, version of virus signature database 5023 (20100412) __ The message was checked by ESET NOD32 Antivirus. http://www.eset. com __ Information from ESET NOD32 Antivirus, version of virus signature database 5023 (20100412) __ The message was checked by ESET NOD32 Antivirus. http://www.eset. com __ Information from ESET NOD32 Antivirus, version of virus signature database 5023 (20100412) __ The message was checked by ESET NOD32 Antivirus. http://www.eset. com
[Repeater-Builder] RLC-3 Controller Question - Related to all Repeater Types.
Hi All, I am in a situation that I need some advice on implimenting an access DTMF tone for you repeater. So far. We have installed a CTCSS tone on the RX of our repeater, and have been asked How does one access it if they don't have CTCSS onboard? Should mentioned the repeater is open, the CTCSS is just to stop the intermittent interference we get from either a garage door opener or home digital TV transmitter. Anyway back to my problem. I am running a RLC-3 controller (6 ports) and I would like to add a feature that would allow someone with a DTMF keypad to enter a tone, like a long-0 or 0-0? Idea would be then for the controller to stay active in COS for around 1 min after the tail drops. Don't want them having to enter the access tone too much, K.I.S.S. I do have the repeater setup for pre-access as it is part of a linked system, the main repeater is set for * then the access codes. I do have a little bit of code that might do the task, but I would like to see if there is any other ideas before I proceed too far into it, might even already be done? Look forward to any replies. Kevin, ZL1KFM.
RE: [Repeater-Builder] DC power cord HKN4137A
Not really. Even though it costs about $16, I think that kit is a good value for what you get: Color-coded heavy-duty high-temperature wires (14 AWG) that are long enough to reach the battery- even with a Charge Guard in line- and with an inline fuse and equipped with the proper plug on the radio end. Similar cables I found at RV stores were only 16 AWG and never long enough. I can't see trying to kluge together a cable when one is readily available, especially for what is probably a one-time purchase. I suppose that some vendor in China will come out with a cheap knock-off of the HKN4137A kit, but I would expect the thick insulation to hide some small conductors. Caveat Emptor! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of la88y Sent: Tuesday, April 13, 2010 6:37 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] DC power cord HKN4137A Anyone have a suggestion for a less expensive alternative to the standard Motorola power cord? lh
Re: [Repeater-Builder] DC power cord HKN4137A
I agree, Eric, but I need 30 of them, so even a slightly lower price will be good. I've found only 1 on Ebay, so I may buy one just to see what the quality is like. And the Moto stuff is probably made in China anyway. lh On Tue, Apr 13, 2010 at 9:22 PM, Eric Lemmon wb6...@verizon.net wrote: Not really. Even though it costs about $16, I think that kit is a good value for what you get: Color-coded heavy-duty high-temperature wires (14 AWG) that are long enough to reach the battery- even with a Charge Guard in line- and with an inline fuse and equipped with the proper plug on the radio end. Similar cables I found at RV stores were only 16 AWG and never long enough. I can't see trying to kluge together a cable when one is readily available, especially for what is probably a one-time purchase. I suppose that some vendor in China will come out with a cheap knock-off of the HKN4137A kit, but I would expect the thick insulation to hide some small conductors. Caveat Emptor! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of la88y Sent: Tuesday, April 13, 2010 6:37 AM To: Repeater-Builder@yahoogroups.com Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] DC power cord HKN4137A Anyone have a suggestion for a less expensive alternative to the standard Motorola power cord? lh
[Repeater-Builder] DC power cord HKN4137A
Item number: 270549058766 at eBay. JT Asunto: Re: [Repeater-Builder] DC power cord HKN4137A I agree, Eric, but I need 30 of them, so even a slightly lower price will be good. I've found only 1 on Ebay, so I may buy one just to see what the quality is like. And the Moto stuff is probably made in China anyway. lh
[Repeater-Builder] Re: crimping assistance please
Seems to me that someone once mentioned that you must use crimp connectors on aircraft...??? not sure if that is true I have mentioned that with regard to regular wire, not coaxial cable. The logic behind that is that when a wire is tinned and the solder wicks up past the connector, you now have a solid conductor as opposed to a stranded one which is far more vulnerable to work fatigue, especially with the vibration common in aircraft. To avoid the problem, all connectors must be of the crimp type and the wires may not be tinned before crimping or soldered afterward. In school I was told, though I have never been able to confirm it, that a properly crimped connection produces enough pressure and heat that the wire is actually bonded to the connector at the point of crimp when correctly done. Perhaps that is so with multi thousand dollar pneumatic crimpers but it doesn't seem to be the case with my AMP specials. I never saw a soldered RF connector while in school but do not remember any comments about them being prohibited, so I don't know for sure on those. Tom DGN --- In Repeater-Builder@yahoogroups.com, John J. Riddell ve3...@... wrote: Chuck, I work for a National Telecom company here in Canada and we crimp everything used on DS-3 (BNC) and above. For the center pin you need a 12 point circular crimper and for the sleeve you need a good quality hex crimper such as Tyco etc. These two items can run you several hundred dollars each. The SMB crimper that we use costs around $1100.00 I've probably done a few thousand of them and never had a failure. So the trick is to have good tools and know the proper way of installing the connector. Seems to me that someone once mentioned that you must use crimp connectors on aircraft...??? not sure if that is true John VE3AMZ - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Monday, April 12, 2010 11:49 AM Subject: Re: [Repeater-Builder] crimping assistance please To reduce PIM, the center conductor should be soldered. Whether there is a practical (measurable) difference would depend on how well the crimp was done, vs solder. From an Amphenol paper: Cable Attachment: Mechanical stability of the cable/connector junction is of utmost importance. Small movements caused by flexing can be translated into significant PIM. Center conductors should be soldered, not crimped. Chuck WB2EDV - Original Message - From: allan crites To: Repeater-Builder@yahoogroups.com Sent: Monday, April 12, 2010 11:26 AM Subject: RE: [Repeater-Builder] crimping assistance please Jeff Doesn't soldering of the center contact to the center conductor affect the connector PIM adversely vs not soldering? AC No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.801 / Virus Database: 271.1.1/2806 - Release Date: 04/12/10 02:32:00
Re: [Repeater-Builder] DC power cord HKN4137A
E bay item 270549058766, I have brought from this seller and they are Motorola cables, Have not had any trouble with them, fast shipping --- On Tue, 4/13/10, la88y llhorl...@gmail.com wrote: From: la88y llhorl...@gmail.com Subject: [Repeater-Builder] DC power cord HKN4137A To: Repeater-Builder@yahoogroups.com Date: Tuesday, April 13, 2010, 6:37 AM Anyone have a suggestion for a less expensive alternative to the standard Motorola power cord? lh
[Repeater-Builder] Community tone board offer
Hi group, I have sitting on the shelf a 10 channel Aerotron community PL board, with 6 boards. If someone can put it to use, it is yours for shipping from las vegas, email me at w9sth @ cox .dot. net
