RE: [Repeater-Builder] Scotchkoat
Any one know of any solvents that can be used to remove it?? I have some on some tools and a spot on my car upholstery (I know, I know) I have little spots of that wonderful product on many things, the tops of my tower boots, a few tools, etc. One Klein canvas tower bag had bottle of it spill in the bottom making a wonderful collection of spare nuts and washers into a mass of goo. I suspect that any chemical strong enough to soften the product, will quite likely also dissolve or destroy the upholstery. I've not looked at the MSDS sheets for it, but the will likely be your best source for which type of solvent will work the best with it. Great stuff, wear gloves.
RE: [Repeater-Builder] Looking for an oddball Batwing product
Ya can't just tune them up then cut the excess shaft off?? *chuckles* The 1500's with the aluminum plate are pretty light, I've used long bolts and sleeves to stand the things off the back side of the rack and accomplish this. It's not as pretty, but assuming you have regular rack rails out of a C shaped piece of metal, you can tread these in from the back. You gain 2-3 inches just using the back side of the rack to screw to, 2-3 screws and you are in. I'll look in my catalogs, but chatsworth and/or mid atlantic might have rack extensions already formed in 4 or 5 RU heights that would work. 73 _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ken Arck Sent: Tuesday, December 18, 2007 9:08 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Looking for an oddball Batwing product As I don't have a lot of free time these days to fabricate 'em. I'm looking for the set of brackets that allow a T1500 series duplexer to be recessed mounted in a rack so the tuning shafts don't protrude past the front of the rack. If you have a set that you wish to part with, contact me offlist Thanks Ken -- President and CTO - Arcom Communications Makers of repeater controllers and accessories. http://www.arcomcon http://www.arcomcontrollers.com/ trollers.com/ Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp. http://www.irlp.net net We don't just make 'em. We use 'em!
RE: [Repeater-Builder] Installation of Radio Equipment in Elevator Machine Rooms and Hoistways
Actually, it is addressed in NFPA 70- the National Electrical Code- which is ratified by each State's legislature as law in that State. I quote NFPA 70-2005 Article 620.37, Wiring in Hoistways, Machine Rooms, Control Rooms, Machinery Spaces, and Control Spaces in its entirety: (A) Uses Permitted. Only such electric wiring, raceways, and cables used directly in connection with the elevator or dumbwaiter, including wiring for signals, for communication with the car, for lighting, heating, air conditioning, and ventilating the elevator car, for fire detecting systems, for pit sump pumps, and for heating, lighting, and ventilating the hoistway, shall be permitted inside the hoistway, machine rooms, control rooms, machinery spaces, and control spaces. If it wasn't required by the elevator manufacturer, it can't be installed in the hoistway or the machine room. Period. Well...close. Fire alarm and control systems vary for elevators and occupancies a bit. While mentioned above, they may not be 'required by the elevator manufacturer' but rather required via code by the AHJ. In my experience, the elevator inspector is God. I've seen entire jobs grind to a halt for a failed elevator inspection. NO ONE messes with the elevator inspector in my experience. You need them to sign off for occupancy, and if you fail your test it might be 3 weeks before he will come back and try again. I've had to change a couple things to pass: 1. One application specified two Cat5e drops to every phone jack, one for voice and one for data. In the elevator room we put the data jack on a faceplate, then ran the phone wire in conduit to the controller for connection to the car cable. Since the data jack wasn't integral, we were forced to pull the data wire back out and cover the box. 2. One installation the electricians had run metal conduit on one wall of the elevator mechanical room to a GFCI receptacle outside of the room, on an exterior wall. Since it was not a circuit for that room, they had to pull it out and re-route it. 3. One fire alarm installation we had a row of boxes on the wall with modules in them, basically the box takes an RS-485 data signal and addresses a relay to do a function. Six boxes, six modules, one of them actually for something not directly connected to the elevator circuitry and we had to pull it out and re-route everything. I'd never even consider placing radio equipment in there first due to the obvious code violation, second due to the life safety liability. 73 N7HQR
RE: [Bulk] RE: [Repeater-Builder] RAIN Report: D-STAR Repeater Trustee, K6BIV, Responds to NFCC Letter to the FCC
Daron- You are probably correct, this is probably not the best forum to drag all this up. That being said, why did you do it?? John, I didn't 'drag this up', I did not respond to your initial posts that were alleging wrong doings by the coordination council, I hoped it would just dwindle away so we could get back to repeaters building. But since you decided to air the dirty laundry, let me correct and/or address a few statements you made. I didn't air your dirty laundry, I responded to misinformation you posted and let folks know there definitely was more than one side of the story. 1. KA7TRY claimed he did microwave from Table Mountain to his house. If you have evidence he lied, could I please get that in written statement so I can take it back to the coordination council? I'm quite sure that if a receiver was monitored from Table Mountain, the audio was brought down via the PUD microwave network from Table Mountain to their facility, not to Franks house. 2. If you have something to contradict what I am stating, please present it. You were NOT in attendence at the ORRC meeting during the time in question, you started attending meetings sometime after June 2000. (The incident in question occured in 1995) Please present the other side! My point was that there are other sides to the story. I was not at the meeting your reference, however I do have documentation from that era and I worked with Frank on his (and my) repeaters during that time. I understand you feel mistreated, I'm not sure what you hope to gain by complaining about it here. 3. While you state that I have opinions that don't necessarily jive with a majority of the repeater operators in Oregon, but you fail to admit that there are so many people angry at the ORRC right now that two different groups are attempting to break away about half the state away from the ORRC. Your statement of he hasn't been re-elected by his peers to the coordinating group is also incorrect. I have run for elections (once at large, twice regional) and I have been re-lected twice. The reason I have not run in recent years is I have no time for it any more and after serving a total of 7 years on the board I have done my share. I became a board member 5 years ago, at my first meeting you ran for something and were not elected; I've not seen you run since for either the director of your region or an at large member. There are no un-coordinated repeaters operating my callsign. So why are we going through this? Daron - I expected better from you as a representative of the coordination council and as a person who makes their living in the communications field. Please get your facts straight before making a fool of yourself again. John, I do not officially represent the ORRC, I simply wanted folks to know that there are more sides to this story. Many coordination bodies have issues, political and personal, that cause constituents to be unhappy with the results. The ORRC is made up ONLY of repeater owners/operators, and the policies put in place governing the operation of the organization can only be changed by the membership. That's you, and it is your organization as well. If you want to fix things, grab a mit and get in the game. It's pretty easy to boo the players from the grandstands. Let's spare the list from this discussion, you know where we meet and when, come on down and get involved. 73 Daron Wilson, N7HQR
RE: [Bulk] RE: [Repeater-Builder] RAIN Report: D-STAR Repeater Trustee, K6BIV, Responds to NFCC Letter to the FCC
All I can say is wow. Joe M. JOHN MACKEY wrote: Joe- Your understanding is correct! Well yes, WOW is appropriate for this kind of a 'story'. Let me just throw out a couple of things: 1. KA7TRY couldn't have microwaved any signal to his house, I purchase a huge amount of his estate recently from his 'house' and I can guarantee you there is no microwave path from there to Table Mountain where his repeater was. 2. The stories are many, oh so many. As a member of the ORRC, I have many boxes of paperwork from Mr. Mackey's time in the organization (minutes, correspondence, documents, etc.). Rest assured, there is more than one side to these 'stories', and what has been shown thus far is clearly only one side. 3. Most importantly, this is not the forum for it. There are many opinions on how repeaters should be run. Mr. Mackey has some opinions that don't necessarily jive with a majority of the repeater operators in Oregon, those repeater owners make up the coordination council. That is likely why he hasn't been re-elected by his peers to the coordinating group for some time. Right or wrong, he apparently feels mistreated by the coordination body, of which he was a member for many years. His solution was to step outside of the coordinated solution and operate his own system in a manner he saw fit. Again, this really is not the forum to air one sided complaints against a coordination body. 73 N7HQR
RE: [Bulk] RE: [Repeater-Builder] RAIN Report: D-STAR Repeater Trustee, K6BIV, Responds to NFCC Letter to the FCC
How does he have a repeater on the simplex channels and not get an enforcement letter. Really bad practice, Mr. Mackey's alleged (I'm being polite) non coordinated, non band plan compliant analog repeater is certainly 'eligible' for such a letter. What amazes me more is the IRLP node in Portland that is UHF linked to a 146.520 remote base on a commercial tower that pretty much hoses the national simplex frequency for the entire metro area. The more curious fact is why folks feel the need to operate their stuff outside the box, outside of 'coordination' that the rest of us live with. There will always be one or two that pull this kind of crap and force the entire amateur population to struggle with it. 73
RE: [Repeater-Builder] E.F. Johnson/Dataradio DL-3410 info needed.
I believe they claim no alignment required for the entire band of coverage. Now.if you figure out how to hack the software and get them into the ham bands, let me know. I've not had much luck with their tech guys even though I use these for telemetry on a regular basis, they claim they just won't go down to the ham bands. I suspect they will, just haven't tried getting them down there. You can always call Joe at tech support, he's pretty good as far as helping with issues. _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of kb4mdz Sent: Wednesday, September 12, 2007 3:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] E.F. Johnson/Dataradio DL-3410 info needed. Anyone have any info on alignment, etc. on a E.F. Johnson DL-3410 radio, Receiver or Transmitter? Got one of RX, two of TX, and am trying to decide on suitability for little g-job idea. Thanks, Chuk G. kb4mdz
RE: [Repeater-Builder] NWS SAME Decoder?
In order not to start a rules regulations thread can anyone point me to a definitive opinion on the legality of using NWS SAME decoders to automatically transmit severe weather bulletins over amateur radio? I know that there were divided opinions, with one side coming down strongly against it, as an unlicensed individual (the NWS employee activating the receiver) is causing an amateur radio station to transmit... similar to the argument against the use of reverse autopatch by non-hams. I posed this question to Riley Hollingsworth via email, his response was that it could not be done automatically, but rather the rebroadcast had to be done by a control operator. We do it automagically while a control operator monitors it. I figure it's close enough. 73
RE: [Repeater-Builder] NWS SAME Decoder?
I posed this question to Riley Hollingsworth via email, his response was that it could not be done automatically, but rather the rebroadcast had to be done by a control operator. When was this? Well geez I'm sorry, not enough caffeine in my blood system. I went back and looked, and the response was similar to what you said, that it was OK to be automatic as long as the control operator could still control the machine. Not sure why I thought it was different, guess I slept too many times since then. 73
RE: [Repeater-Builder] When 4, 6 or 8 Cavities just won't do...
If it were a notch-only duplexer, it would have two reject freqs listed. A duplexer is used on two discrete frequencies, so both should be present on any label. A pass freq plus a reject freq indicates the unit is doing both pass and notch. Still fine for one half of a duplexer. Well, it IS a notch only duplexer no matter how you look at it. Don't get hung up on a silly sticker. The thing has been retuned, simply, so the sticker does not apply to the tuning. I know quite well what a duplexer is, and it is certainly not a requirement to label both frequencies on every label. Often you find a label on each port (transmit and receive) with the respective pass (or notch) or both frequencies. As you can see by the cavities, there is only one port in use. One connection, with a coupling loop, and a coax T is a NOTCH. If ANY of the cans were bandpass, there would be TWO connections (coupling loops) and the coax would go in to one port and out the other. Please keep in mind that one can build a 'duplexer' out of 'cavities' and those cavities can be 'pass' or 'notch' or 'bandpass/bandreject'. Once these components are assembled with the correct intercavity cabling, you have created a duplexer (regardless of what the label says). 73 N7HQR
RE: [Repeater-Builder] When 4, 6 or 8 Cavities just won't do...
The blue sticker has what appears to be 152 or 153 on it, but that could just be the three left cavities. Also, it only shows PASS and REJECT freqs; a real duplexer would have high-pass and low-pass freqs listed. Yes, these cans may have been sold the first time on 152 or 153, that doesn't mean it won't do 145. My commercial duplexer on my VHF repeater was originally ordered and used in the 152 commercial stuff, the sticker says so, but it still tunes and works fine at 147. A real duplexer would have high pass and low pass frequencies listed? What if it were a notch only duplexer? A 'real' duplexer is under no such requirements. 73 N7HQR
RE: [Repeater-Builder] When 4, 6 or 8 Cavities just won't due...
* Re: When 4, 6 or 8 Cavities just won't due... Another Ebay gem: DB PRODUCTS 9-CAVITY RADIO REPEATER DUPLEXER-100DB-HAM Ebay Item number: 250120910164 I don't know to be impressed or just laugh at all the hardware (number of cavities used). cheers, skipp * The description says it was for an amateur project that was never completed, and I can see why. This setup has three notch cans in the transmit side, and 6 notch cans in the receive side. As described, yes, the insertion loss would be pretty low, however with no band pass protection for the front end of the receiver, you better be on your own hilltop with no one else around. I don't think this custom assembly qualifies much as a duplexer, but it is a nice assembly of notch cavities. * 73 N7HQR,_._,___
[Repeater-Builder] Spectrum repeater
I know, I know, the title alone is enough to spark debate. Like it or not, I need to adjust the ID setup on one. I found the pitch, speed and level on the ID board, but I don't get the time between ID's. I moved the other two pots a bit, now the damn thing id's every 3 minutes or so. If I could find the schematic for the ID board, I'd at least know what I was up against. I think it is an SCR 77 if I remember right. Separate ID board in there, if someone has a schematic for it I'd sure appreciate it. Thanks in advance. Daron N7HQR [EMAIL PROTECTED](dot)org
RE: [Repeater-Builder] repeater problems, duplexer etc.
Anyone have any ideas? Are our crude methods of tuning the duplexer too crude? I would say yes. I've done UHF cans with my service monitor for the signal generator (very adjustable) and an HT to receive it on, and been moderately successful. However, your individual mileage may very, if you are practiced with this method of tuning, you can do quite well. If this is what you have to deal with, I'd try peaking the PASS part of the cans with a wattmeter after you have done all you can with the signal source. That should get you the most through the pass port, though you won't know what the skirts look like or anything, but you will get more power out. Assuming that works, then I'd go for the notch tuning again and see if you can get it close enough. It's tough without the right tools. Good Luck!
RE: [Repeater-Builder] Ok, here's a weird one....
* Question: The only way I see this happening is due to some AM component on radio station's transmitter. Thoughts? I've got one site with similar problems. MastrII repeater, in a metal cabinet, grounded, bonded quite well. Shielded audio cables, ARCOM RC-210 controller (shameless plug for Ken) and intermittent FM station audio. It comes and goes, some sort of mix with something, but the shorter shielded hook up cables helped it quite a bit. It's using a MastrII power supply and back up battery. It's tolerable most of the time, sometimes enough audio to actually hear what is being said, almost always the audio is on the 'tail' of the repeater, not noticeable when the repeater is actually repeating. Shorter shielded cabling seemed to help the most. 73 Daron
RE: [Repeater-Builder] Simplex repeater
Hmm, maybe it's just syntax, but a simplex repeater uses ONE frequency (i.e.simplex) as opposed a duplex repeater using two frequencies. A simplex repeater MUST store and forward (record) since it is self defeating to transmit and receive on the same frequency at the same time from the same location. Since you say you are using two radios, I can only assume you want to receive and transmit at the same time on two different frequencies, thus a duplex repeater. You can quite easily do this with two radios and a small 'controller' such as the hamtronics products. Good luck N7HQR _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of IF YOUR NICE I MAY TELL YOU Sent: Monday, February 05, 2007 4:01 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Simplex repeater Hi all what do I need to put together a simplex repeater without using a recording device.I would like to hook up 2 radios and antennas.Thanks for any input.KC0USN 73's Do simplex repeaters require Frequency cordinater to give frequency or can you pick your own?
[Repeater-Builder] Wilson UHF Citi-com repeater
Looking for a manual on a Wilson UHF Citi-com WU-451-RA repeater. Will pay for copies, etc. if someone has one on the shelf. Thanks, Daron Wilson N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] GE Icoms
Looking for a transmit ICOM for the PLL exciter on 145.110, and receive ICOM on 144.510. Thanks, Daron N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Small (and LARGE) fonts (Please read)
If everybody would just configure their mailer to send plain text then there would be no problems. This is 2006, probably a good time to adjust to the technology a bit and realize that a good email program will be able to handle incoming email in a variety of standard formats. I suppose one could always go back to snail mail, it seems to me everything I receive from the USPS is in one format...no, wait, that is even more varied yet I still manage to read all those different fonts and graphics! Receiving email in multiple formats gives the recipient the choice of displaying it how they wish. If you don't like it, put it in plain text format and view it the way you want. Good luck! Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Fan cooling on PA
OK, this sounds like a simple question, but I can see advantages to both solutions. When adding a Fan on a PA heatsink, should I be moving new air in blowing it onto the heatsink? Or is cooling more efficient when the fan pulls the heat away from the heatsink? Thanks in advance, Daron N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] ELT Receiver on Repeater
I had one, wish now I'd never sold it. The company doesn't make it anymore as far as I know. It was made by Ltronics, and was a simple rack mount receiver with a signal strength meter, and decoder circuit that would close a relay after hearing the 'yelp' of an ELT/EPIRP for a few minutes or so. I had it interfaced to my repeater in a manner that just put the audio on the repeater IF there was an alert. Anyway, you may have to get a receiver and build something to decode the yelp. If you find a simple way, I'd be interested in adding it again to my repeater network. Good luck N7HQR -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Alexander N Tubonjic Sent: Monday, February 27, 2006 3:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] ELT Receiver on Repeater Hello All, I remember reading somewhere (I think in an ARRL Handbook) about a project to install an ELT (Emergency Locater Transmitter) reciever at a repeater site and link it into the repeater. I quess every time a signal was received some kind of tone or something came over the repeater alerting users that an ELT was going off. I am in Civil Air Patrol and think this would be something nifty to have on my repeater. If anyone has built and/or used something like this I would like to hear from you, thanks. Alexander Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Midland Question
-Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Ken Arck Sent: Monday, February 27, 2006 8:35 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Midland Question At 04:20 PM 2/26/2006 -0800, you wrote: Does anyone have experience using the Midland 70-530B or like radios as temporary emergency repeaters or as link radios? I have a bunch and am trying to decide if they're worth fooling with... ---I use several trunkmount versions of that radio (70-630B) as half-duplex link radios. Cranked back in power and with a fan on the heatsink, they work great. Excellent receivers and very clean transmitters make for good link radios. 2 of 'em would make a good portapeater, IMHO. They also tune down as low as 433 with no problems or mods needed. Nope, they are terrible units. I'll buy them all from you for scrap :) We use them for linking radios as well, no problems, but I'll still buy them from you. 73 N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Bad 4 Heliax (Was Polyphaser Help)
I've seen the same thing with 3 5/8 or whatever that size is. I figure it was high SWR combined with something else, but it actually burned it about 40' up the tower as the 'technician' was tuning the transmitter. We later climbed up, cut it off above the bad spot, installed a coupling (monster piece of hardware) and replaced the feedline from there down into the building. It was pressured with dry air. It was an interesting site to watch...I was beginning to ponder how we were going to put the damn fire out when the plastic jacket melted enough to drip off the heliax and things calmed down (when the RF was taken away). 73 N7HQR -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Joe Sent: Saturday, December 31, 2005 11:39 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Bad 4 Heliax (Was Polyphaser Help) Yes At 09:30 AM 12/31/2005 -0800, you wrote: Joe, was it pressurized? Dick - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Cc: Eric Lemmon [EMAIL PROTECTED] Sent: 31 December, 2005 09:26 Subject: RE: [Repeater-Builder] Bad 4 Heliax (Was Polyphaser Help) I've seen 6 hardline go bad at an FM broadcast site. Brand new feedline, defective or contaminated insulators between the center conductor and the outer conductor. Total meltdown occured inside the feedline. Joe Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] hdtv radio shack ant ????
More importantly to this group, how do I interface it to my repeater ?? -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of mch Sent: Tuesday, December 20, 2005 4:48 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] hdtv radio shack ant You know, this subject (mail subject line) reminds me of the stories I was told about them coming out with antennas for *COLOR* TV that were interpreted to be different from BW TV antennas. Supposedly, for color TV you needed a Color TV antenna. BW TV, Color TV, HDTV... they ALL use the same frequencies and the same antennas would work equally well. Joe M. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] hdtv radio shack ant ????
BW TV, Color TV, HDTV... they ALL use the same frequencies and the same antennas would work equally well. ---Seems to me I remember the color antennas were being pushed as wide bandwidth. Which of course you needed for color TV! There are always things like digital ready, I made sure that was on the pair of headphones for my portable CD player. Or those gold plated connectors on the PC motherboard where the bracket AROUND the pins is gold colored...those go really fast. 73 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] 19 inch rack adapters
These are pretty affordable from Chatsworth or most of the equipment rack suppliers. I don't have any spares laying around or I'd give them away, don't get the opportunity to use them much. Good luck, N7HQR Daron -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Karl Bullock Sent: Wednesday, August 03, 2005 9:07 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 19 inch rack adapters We have an outdoor cabinet for our repeater, but it's a telco retread, and as such has a 23 rack inside, and of course, all our equipment is for 19. I'm looking for 19-23 adapters 4' long (2 ea.), or any combination of larger adapters (which I can cut down), or smaller ones (which I can stack). Anybody got any of these puppies? TIA Karl, WA5TMC Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Repeater Rx is Better than TX, Why
If a 2 meter repeater antenna is broken, it'll affect both receive and transmit, and likely have severe duplex noise which again he doesn't complain about having that either. We tried a TRAM dual band antenna, looks just like the diamond type of setup, on UHF repeater. It worked well, we did some benchmark testing, etc. First serious ice storm we had on the hill the radome took on about 2 of ice, as did the radials. The receive sensitivity went WAY down in the dirt, noisey and not usable from just a few miles away. A trip to the hill checked out everything inside, 80 watts out to the antenna with no SWR, nothing seemed to change at all in the transmit coverage. The receiver was fine, duplexer was fine, etc. I climbed the icy tower, knocked all the ice off the radome and radials and the receive sensitivity came back. We can notice the decrease in sensitivity with as little as 1 of ice hanging on the radome...but transmit does just fine no matter what. Whatever it does, apparently it does not affect transmit and receive the same. Good Luck! Daron N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Adjacent Channel Noise, how far should it be heard
I had something brought to my attention yesterday on my 2 meter repeater. ABout 15 miles away, I'm being told that my repeater can be heard on the output for about 20 to 25 Khz away. From what I am told, it is not legitable, but it's there. The transmitter is a Majorrie Hi-Pro running about 2.5 watts and the PA is a Vocom 200 Watts. I'm getting right about 165 watts out of the duplexer, fed through 7/8 hardline 160' to the top of the tower into a Diamond Dual Band Antenna with a vsr of 1.1 with 1/10 of watt reflected. Is this normal, or is there a problem. Hmm, must be that big amplifiersend it to me and I'll see what I can do for you *grins* Before worrying too much about your equipment, I have to ask what the test method is. Being heard on what? Not legible but being there, that is a tough one to quantify. If you don't have access to more test equipment, you can probably try tuning around on the radio and see if you are being heard from center channel out every 5hz to 20 or 25khz either or both sides, or if you just pop up 25khz away. I've seen poor cavities and/or turning make the same thing happen on a specific frequency 20khz away over 15 miles and it was readable. Unfortunately it was on the output of another repeater. One little tweak on the cans and we could make the spur move up and down. First step was to move it where it wasn't a conflict with any local repeater, Second step was a return trip with new cans. The cans in place were surplus BpBr of an unknown manufacturer, so we couldn't get design specs on them. Of course a spectrum analyzer would be handy, but first I'd see if I was all over the place by listening 5khz at a time or if it is just a spur at one location. Good Luck! Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Antenna Separation
The rx ant at the top and the tx ant at the bottom, about 12' to 14' separation. The system would talk to itself. I removed the tx ant and replaced with a 4 ele yagi - works good. I need a omni ant for both rx and tx. I have an isolator on the tx and a Bp cavity and a circulator on the rx. Why would it desense with one ant and not the other ant? I know the idea behind the yagi and the mobile ant. But they both have rf going vertical. I need to have minimal separation without it talking to itself. Your ideas? Thank you. The patterns on completely different on the vertical vs. the yagi. If you are stuck with this situation which is not an optimum solution, you might consider inverting the bottom antenna. I've been able to shorten the vertical separation require between the two antennas like this by turning the bottom one upside down. Good Luck! N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] connectors
Ever wonder what Quintron is no longer around? *chuckles* I really haven't wondered about it. However, your implied logic that they aren't around because they used crimp on RF connectors is quite flawed. I use both types of connectors in the field routinely. A good quality (i.e. silver plated) RF connector on good quality coaxial cable installed with the proper tools by a knowledgeable installer can yield a very good quality fitting. Clearly there are millions of them out there in commercial/industrial/military applications. Likewise a solder compression type fitting done correctly can yield a good quality fitting as well. Though it doesn't seem to take much twisting on the coax at the connector to break the braid loose of the compression point. I've had very few crimp on connectors fail on me I guess, I've had far more compression N connectors pull off the end of coax. Your mileage may vary 73 N7HQR Daron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Station master antennas
And if it's for a VHF repeater, stay away from the fiberglass antennas. They develop cracks that create a ton of duplex noise. The elements are too long to flex in the wind, and they create cracks at the solder joints. Uh...Not sure where you are or what you are using, but out west here I see about 10 VHF fiberglass verticals installed on sites for every one folded dipole. Not that it makes it right, but that's what I see out there. There are nice products to stabilize the top of the antenna if you are side mounting, which is probably a good idea if you are concerned about movement of the antenna. I've had exposed aluminum collinear antennas create noise on duplex as well, never dealt with enough exposed aluminum ones to know their failure spots :) The antenna is certainly not an area to skimp if you want it to survive. You'll get lots of opinions here, keep in mind that is just what they are, my opinion is based on what I've used, replaced, repaired, troubleshot and continue to buy. Good Luck :) N7HQR Daron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: 802.11b wireless
I have a 6.65 mile non-line-of-site path to bring internet access to my home from the center of town where our T1 line exists. I use 802.11b (2.4 gHz) with larger grids (about 24 dB gain) on each end. There are different cards available these days that have better receiver sensitivities and more power, however, they are illegal for operation when used in non licensed applications. I simply programmed the cards to operate in the ham portion of the band and used my callsign for the SSID. I do not want other peoples opinion on the legality of running internet that is encrypted over the ham band, as I really couldn't care about someone else's opinion on my operation, however feel free to discuss the technical nature of the subject in any detail here. Thanks Kevin, I agree. Our main link is that way, 18 miles LOS with WEP enabled, Ad Hoc mode, callsign as the SSID so it should be clear that it's amateur radio. http://www.ocrg.org/level2pages/current_projs.html 73 N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Need AC mains monitor
Last time I needed one of these, I took a regular 12vdc plug slug/wall wart type of power supply and fed a relay keeping it energized all the time. Then I copied the beep tone circuitry from a Motorola R100 repeater (its a pretty straightforward tone generator) and used that to put the beep tone on the repeater, having the relay and tone generator powered from the backup battery. You would think someone would make a similar product in one box, but since you can buy a full featured repeater controller for $300 or less it probably just isnt worth it. 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( | | coffee! (541) 270-5886 cellular \| | [EMAIL PROTECTED] || -Original Message- From: Kevin Bednar [mailto:[EMAIL PROTECTED] Sent: Friday, December 03, 2004 8:37 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Need AC mains monitor Looking for a inexpensive, stand alone device that can monitor the output of a power supply for loss of AC mains power and then inject a beep tone onto the TX audio when its keyed up. This needs to be able to be interfaced to a RICK unit, which is being used to control the radios. Anyone use any products like this, or have any ideas on what to use? It has to be able to interface to the RICK and existing radios, and I've already looked at the Zetron voice telemetry units, but spending $700+ is not an option for the end user. TIA to all. Kevin K2KMB Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] radial tire static?
Well...sorta. The feed line in question is referred to as 'air dielectric', as such instead of a foam or polyethylene dielectric to keep the center conductor centered where it is and provide insulation between the center conductor and ground, there is a spiral piece of dielectric material to hold the center conductor in place. Everything else between the center conductor and the shield is the 'air' part. It doesn't need to be nitrogen, there is nothing particularly mystical about nitrogen, often compressed dehumidified air is used instead, since regular 'air' is made up of about 78% nitrogen. Will the system function without nitrogen? Absolutely. The purpose of the air or nitrogen is to keep moisture from infiltrating the system. I have never seen the VSWR change at all by simply removing the nitrogen from the system. I've often opened the top of the antenna and 'purged' the moist air out of the system with nitrogen prior to sealing it all back up (after a leak or O ring change) and making sure it will hold. One local broadcast station is notorius for running out of nitrogen on the hill and letting it go for months on end. When they finally decide it is time, I put a new tank on, crank it up, climb the tower and open the valve on the top to push all the old 'air' out with the new clean nitrogen. Again, no change in VSWR unless the system leaked enough to take on moisture. When that happens you can see some VSWR, and often you get arcing inside the feedline (not good). Good Luck! Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: Mark Holman [mailto:[EMAIL PROTECTED] Sent: Friday, November 19, 2004 6:09 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] radial tire static? I will answer that , your antenna cable is using that stuff intead of foam like the RG series coaxes run, and as long as everything is a tight fitting you have very good LOW SWR, thing is ...when it leaks a o ring seal the VSWR shoots up ! Alot of this I am learning in Broadcasting since they use power in the High KW Mega Watt Range. now you can impress your Radio Guy that you learned something, I probably expect maybe a response. Mark Holman, CRO ( Future CTO ) AB8RU - Original Message - From: KA9QJG [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, November 18, 2004 1:11 AM Subject: Re: [Repeater-Builder] radial tire static? That was such a good explanintion about tires , I recall seeing fittings on Large coax at the Police Communications Center and I ask the radio Man what it was for and He just said it was Nitrogen. and I was just a Police Sgt and a Ham and would not understand , Nice Guy Yea Right So what was it really for ? Thanks Don KA9QJG 444.750/R Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] radial tire static?
Many types of gasses can be used for different purposed in tire inflation. Hydrogen - I think this is used mostly in movie production, as you may have noticed on most movies almost any car crash results in an instant explosion. Charging the tires with Hydrogen gas assists in this explosion process. It is rumored that certain crime syndicates may also use this technique for vehicles they wish to 'dispose of'. Helium - we use this on almost every trip up to the repeater site. We find that we can load the truck down very heavily at sea level, and it is often all we can do to keep it on the ground once we get up to about 6,000 feet. It is a tremendous mileage booster, though we lost the first truck when we unloaded at the repeater site and returned to find the empty truck gone. Perhaps it was stolen. Propane - this one is a bit tricky to use, but has its benefits. The pressures must be kept quite low to avoid a liquid buildup inside the tire. While the liquid quickly and smoothly coats the inside of the tire, it can cause a blowout if the mixture is just right. Often for camping, we fill up all four tires with as much as they can hold. Sure... at that point we have liquid in the tires and driving is slow, but when we get to camp we just pull a wheel off and connect it to the lantern and we're good for a weekend. Methane - similar to propane, though a bit trickier to get squeezed into the valve stem, sometimes it isn't practical but after a few beers trying to fill one up can be a real hoot! Argon - one of the most abundant rare gasses, it is inert so it really is not very entertaining. However, with some care, it can be used for filling tires. Oddly enough, if you purchase 324,523,439 60 watt incandescent light bulbs, you can gain enough Argon to fill 4 tires (not those fat mud tires though). Neon - another of my favorite inert gasses, we often use scour the electrical contractors for old florescent lamps which contain free neon gas. It's free, fun and reasonably safe. Krypton - an all time favorite, but for obvious reasons it is reserved only for superman. Krypton gas is 3 times heavier than air, so frankly, it is too heavy to carry around in the tires. Oh there are so many more, but I've got to get out and check my Neon pressure. I've got my technician extracting the precious gas from tubes and the tire is almost full! 73 and happy gassing! Daron Wilson, N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] vertex repeaters
Reminds me of something I learned while working in the Fire Service: '100 years of tradition unhampered by progress' was what I was told when I questioned things such as why we used hose fittings that took 8 revolutions to fully connect when there were 1/4 turn couplings available. As one who works in the field daily with probably 50 or programmable systems including telephone systems, voice mail, telemetry, two way radio, Programmable Logic Controllers, etc. I truly wish the manufacturers (engineers) would get their act together. A few have done some nice work, Nortel for example gives me a voice mail with a serial port for terminal startup and an Ethernet jack for heavy duty programming. Cisco did this with their access points, Esteem did this with their telemetry radios, it isn't rocket science, it is good engineering. Marketing new equipment that requires outdated hardware and an outdated OS to program it is just wrong. I'm not even sure I can program all of Motorola's products with the two laptops I carry now (one old, one new) because I think you really need DOS, Win2000 and WinXP to do the entire line. The root of the problem is that the software engineers won't properly implement their code to use the com port via the operating system. They should. If you seriously think manufacturers should be marketing new equipment that requires DOS for programming, you must agree with Bill Gates when he said that no one needed more than 640k of RAM. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: KI4AWK [mailto:[EMAIL PROTECTED] Sent: Thursday, October 28, 2004 11:59 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] vertex repeaters DOS is more reliable and easier to set up. And it's simple. I'll commend any manufacturer for sticking to the K.I.S.S principle. An old computer with a serial and a boot disk is all you need. (don't even need a hard drive) John Clark WCTV 6 Television Engineering (850) 893- EXT 205 [EMAIL PROTECTED] - Original Message - From: W9DHI [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 28, 2004 12:55 PM Subject: RE: [Repeater-Builder] vertex repeaters Even though I'm no longer in the Biz, I still keep 3 old laptops around just for the dos programs ect. The last one I bought at a Ham club auction for $5.00. Battery was shot and no power supply, but cobbled a supply together for nothing with parts on hand. Gregg R. Lengling, W9DHI, Un-Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Member: ARRL, RSGB, RCA, WERA and ORC -Original Message- From: Maire Company [mailto:[EMAIL PROTECTED] Sent: Thursday, October 28, 2004 11:52 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] vertex repeaters I would think anyone in radio service would have a computer or two or four, with a serial port. just to run about 80% of the programs we need one. - Original Message - From: Mike Mullarkey [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, October 28, 2004 9:48 AM Subject: RE: [Repeater-Builder] vertex repeaters Mike, I hate to say but go get your self a cheep 50.00 laptop and use it to program. They may already have the new windows software out so ask them, you may be suppressed. Oregon Repeater Linking Group Mike Mullarkey [EMAIL PROTECTED] www.orlg.org -Original Message- From: Mike WA6ILQ [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 27, 2004 9:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] vertex repeaters At 08:28 PM 10/27/04, you wrote: Has anyone have an alternate solution to Yaesu's configuration program for those of us that have no serial ports, just usb to serial? Yaesu said that their program will work in dos only and have no intensions of changing. So much for recommending their repeaters any more. Have a nice new laptop that will not communicate. Plug a PCMCIA serial port card into the laptop... IMPORTANT - make sure that the seller states that it works under DOS before you buy, and make sure that you can return it if it does not. Here's a second hand one from Amazon: http://www.amazon.com/o/redirect?tag=amd-google-20path=tg/detail/-/B00 00AZ K2X/ref=pd_sl_aw_alx-jeb-9-1_ce_4713688_1 Or if you want one that is new http://www.synchrotech.com/products/serial.html Another is at http://www.teampctechnology.com and look for the model number TS-C-COM232 These guys occasionally have them used, and when
RE: [Repeater-Builder] New Sinclair 2M Antenna Question
I'm almost positive that is the matching stub, had the same issue with one I put up a few months ago. I just stuffed it up in the aluminum sleeve and put the thing up. I'm curious about the electrical portion of it, but not curious enough to tear it apart :) Good luck! Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: John J. Riddell [mailto:[EMAIL PROTECTED] Sent: Monday, September 20, 2004 12:09 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] New Sinclair 2M Antenna Question Larry, the obvious would be to call Sinclair and ask themyou might also contact Bob VE3BFM at www.mapleleafcom.com he used to work for Sinclair and might have the answer for you. Maybe it's part of the matching network and they forgot to stuff it inside :-)) 73 John VE3AMZ - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, September 20, 2004 12:27 PM Subject: [Repeater-Builder] New Sinclair 2M Antenna Question | We just purchased a new Sinclair 2-Meter Collinear antenna for our 2-Meter | Repeater to replace a similar Celwave Stationmaster antenna that was | about 14 years old (turns out we probably really didn't need to, it still | looks almost brand new). | | The new Sinclair 2-Meter antenna arrived (ordered for our 2-Meter channel) | and we found a second cable going into the base of the antenna. There's the | main antenna connector, and there's also a short length of what appears to | be RG-142 cable, hanging out and going nowhere. We've worked with many of | these Stationmaster type collinear antennas for many years, but have | never seen anything like this. The instruction sheet and frequency sweep | don't mention anything about this loose cable going into the antenna. Has | anyone else seen this and know what it's for? Our dealer that we ordered it | through hasn't seen anything like this, either, and was at a loss to | explain what it might be. | | We also ordered a brand new 10dB Sinclair collinear for 440 MHz, and it | doesn't have this extra cable. | | LJ | | | | | | | mail2web - Check your email from the web at | http://mail2web.com/ . | | | | | | | | Yahoo! Groups Links | | | | | Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RC-96, FC-900 and Icom remote bases for sale
Hey folks, I just listed two RC-96 controllers, an FC-900 and several Icom remote base units on ebay. Remember bid high and bid often!! http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItemsuserid=n7hqr include=0since=-1sort=3rows=50 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola Radius i50 interconnect
Looking for a book on this little autopatch, or at least the pinout for the DB-15 on the back and the critical (patch on/patch off) commands or notes. Thanks, Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Astron Over Voltage or Crowbar issues
I've read the description on the repeater builder website of the astron issues and circuits, but not sure if that will solve what I'm currently experiencing. I've got a 50 amp rack mount supply, the problem with them is that if there is much of a load or draw on them when you DO restore AC power, they go into this protect mode. I've got a couple small radios on them, but when power comes on there is an immediate current draw and that seems to lock the power supply down. The only way I have found to get it back is to turn it off, disconnect the load, plug it in, then hook the load back up. Is it all the same issue and will the overvotage circuit solve that as well? Thanks in advance, Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Center Pins for Heliax
Tessco sells the pins separately for most of the connectors, www.tessco.com 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: wa9ba [mailto:[EMAIL PROTECTED] Sent: Saturday, July 10, 2004 5:58 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Center Pins for Heliax We have several 7/8 Heliax connecters that we need center pins for, do any of you know of a source for them? We don't want to buy whole new connectors! Bill WA9BA Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Midland Manuals
Hello folks, I have some midland radios I'm building into repeater links and would like to find manuals. Midland UHF 70-1526B radio - Manual Part Number # 70-152600 Midland 70-530B radio - Manual Part Number # 70-406512 Midland doesn't have stock on either of the above. Thanks N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( | | coffee! (541) 270-5886 cellular \| | [EMAIL PROTECTED] || use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] grounds cadwelding
My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. I have to say I like that idea. I haven't done enough with the nice copper ground strap since my AM broadcast days other than running the length of my sailboat. It may seem excessive but it is a great path to ground. I would consider bonding the two ground rods to the utility ground for the house. I'd have to look to be sure, but I believe it is code that any additional ground rod be bonded to the main ground system. While you are talking about doing that in the house with a run to the breaker panel, I believe it may be more correct to bond them outside around the perimeter of the house. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? I believe it is polyphaser that makes a nice little kit that makes the transition from flat strap to a round ground rod, though I don't know that it is a cadweld solution. Perhaps someone else has some ideas, but you are off to a great start! 73 Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| thanks Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] grounds cadwelding
Daron- In my situation my radio desk will be about 4 feet from the breaker box, which is about 2 feet from the power meter outside where the AC feed for the house is. My ground connection was going to be immediately below the breaker box AC feed. My connection to the AC ground system is obviously right there at that point. Well that makes sense, I'm sure you're striving for the shortest path and least resistance to ground. Makes sense for your description of the installation, now all you need to find is the right hardware for the cadweld portion and you are set. 73 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola R100 - changing PL
I know this may be a bit out there, but a friend is setting up an R100 for me and can't seem to find the spot to change the PL tone. I've not used the software, nor do I have the software manual, but I suspect it is just a function key or something to get to another screen where you change the tone frequency? Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Mot. Handie Talkie RF Link
It's not mine, it's Paul's. I'm trying to get some more info so I can make an offer, but have heard nothing so far! :-) Hey Paul!! Wake up!! Mike I was waiting to hear a price as well. I have one of these in working condition with the lid and everything, but it's kinda like having one walkie talkie when I was a kid.much more fun with two. SO I was going to try and buy this one but never heard a price. If someone else buys it, contact me and maybe I can help YOU get a pair of these units. 73 Daron [EMAIL PROTECTED] Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Mot. Handie Talkie RF Link
I have the only one currently available from Motorola, it just handles the interface board from what I can tell. No complete manual is available from them anymore, just this interface board manual. I believe these are HT90's, they are crystal radios, didn't look into it much more other than to make sure it transmitted and received correctly. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: Neil McKie [mailto:[EMAIL PROTECTED] Sent: Monday, May 24, 2004 10:43 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Mot. Handie Talkie RF Link Daron, do you have the manual on the HT RF Link? Neil Daron J. Wilson wrote: It's not mine, it's Paul's. I'm trying to get some more info so I can make an offer, but have heard nothing so far! :-) Hey Paul!! Wake up!! Mike I was waiting to hear a price as well. I have one of these in working condition with the lid and everything, but it's kinda like having one walkie talkie when I was a kid.much more fun with two. SO I was going to try and buy this one but never heard a price. If someone else buys it, contact me and maybe I can help YOU get a pair of these units. 73 Daron [EMAIL PROTECTED] Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Mot. Handie Talkie RF Link
Does it have the telephone line interface in it? I have one that brought out to the telco interface board for discrete tx and rx audio to be run down two pairs of wires. If it does, Id be interested in it, what do you want for it? Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( | | coffee! (541) 270-5886 cellular \| | [EMAIL PROTECTED] || -Original Message- From: K.Paul Boggs [mailto:[EMAIL PROTECTED] Sent: Thursday, May 20, 2004 12:37 PM To: Repeater-Builder Cc: repeater Subject: [Repeater-Builder] Mot. Handie Talkie RF Link I have for sale or trade a Motorola Handie Talkie RF Link. 440-512MHZ. Presently on 466.1125 TX 451.1125 RX PL 6Z 167.9 2/4 watt. Runs on 12V 110/220 vollt. Built in power supply, internal duplexer. In factory metal box. DO NOT HAVE ORIGINAL LID. or rubber gasget. Go to BATLABS before contacting me direct. Have Motorola Service Manual. Weight now 15lbs. Make a great portable emergency repeater. All factory, NO MODS Paul K.Paul Boggs [EMAIL PROTECTED] Mountain Emergency Communications Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Spectrum Communications
I was at a hamfest a week ago looking at a Spectrum SCR1000 repeater for 220Mhz. The owner tried to convice me that Spectrum is still in business, I said that I thought not. He claimed that they are still advertising in QST, I can't find the ad. Anyone know the real story on Spectrum Communications? www.spectrumcoms.com 1-610-631-1710 73 N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Scotchcoat.
It's the best for stainproofing fabric, in my experience. It's available in most hardware stores. I believe you may be referring to Scotchguard, which is a clear spray material used to weatherproof fabric. Scotchkote on the other hand is a stain making product, every harness and tower bag I have seems to have little drips of the stuff on it, as well as my boots :) For connectors I normally wrap once with Scotch 33 electrical tape (sticky side out if you think you are going to take this apart soon), coat it with scotchkote, wrap it with rubber linerless splicing tape, then 33 again and coat it with scotchcote. Always to remember the orientation of the connector assembly, if possible, wrap from the bottom to the top overlapping the previous wrap, less chance for water entry. Good luck! Daron N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Radio Mounts
Daron, I guess I didn't know exactly what you wanted to do. Are you trying to stack the radios? What I'm trying to do is refill my tool box and parts box in the shop with some of these brackets. I use them to mount speakers (if I don't have the bracket), TNC's to the top of radios, radios to panels in weatherproof exterior boxes, mount custom project boxes to stuff, etc. They are simply pieces of stamped out sheet metal, about 1/2 on one side and 1 on the other, with slots punched in them so you could mount about anything under a dashboard. The set came with several of the size above, then some that were for real tall radios and could mount under the dash and reach down 3 or so to the center of the radio for the mounting screws. They were great, thin enough that one could easily trim them down with snips, but solid enough that they would pretty much hold the unit in place. Thanks, I'll keep looking, we're getting closer. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola P10 P50 conversion to ham bands
Hey folks, Anyone taken these little radios into the ham bands? I'd like to use some UHF modules for linking, and the VHF modules would do fine for APRS trackers. They look like they should go easily, just trying to find out if anyone has done it successfully? Thanks, Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Radio Mounts
Easy to find. Look at Mounts and Stands http://www.randl.com/cgi-local/cart/cart.cgi?cart=Searchgroupnumber=(8 160) http://www.universal-radio.com/catalog/misc.html Hmm, I guess I'm search-challenged this morning. I went to both sites, nice spots, the first one had 60 mounts for amateur radios, no pictures that I could find, and no listing for the universal mounts we are referring to. The second link is good for all kinds of things, just don't see the universal mounts. Humor me, would ya point me to the specific link where you see these? The old radio shack kit had something like 6 sets of brackets, several just from angle stock, several that were triangle shaped on one side allowing 'taller' radios to be mounted, and it seems like there was even a straight flat metal part used for securing the back of the radio. Daron - N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Mast Materials
Why don't you just buy 2 galvanized plumbing pipe? A full sized length is 21 feet outside diameter is approx.. 2 1/4. I might...but galvanized pipe and rigid conduit like that are made from malleable steel, we bend it all the time into 90 degree bends, which is not the desire for a rigid mast. Structural steel is a different animal. Somehow I don't think a 21' piece of 2 water pipe with a 21' fiberglass whip on top is going to do real well at 80mph on a hilltop. Hence the reason I was asking what was done to make a mast 'reinforced'. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Mast Materials
I wouldn't want to mess with someone who goes around bending 2 water pipe all day long. Best answer would be to ask a mechanical engineer who is also a ham. Round these parts the mast of choice is oil well drilling rod or also called sucker rod. I have never used it but hear others who have. Well I don't do it by hand :) We've got nice hydraulic benders for that purpose. My point was the stuff is rather soft and bends well, not quite the ultimate desire for a mast. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re: Mast Materials
Darin, get two ten foot sections of used tower sections at a swap. Made for your project. Strong, light and you can guy them for extra safety. They are made to bring the wind load down to the base. That is also an idea, however guy wires are not acceptable for the site. Also the snow load tends to break guys and fold towers as the snow shifts down the hills. thanks Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] New Product, Audio Processing Module for Repeaters and Links.
Hmm, I can't make that link work Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: Kevin Custer [mailto:[EMAIL PROTECTED] Sent: Saturday, April 24, 2004 8:16 PM To: Repeater Builder; GE List; GE-Mastr II List; Motorola-User List; Micor List Subject: [Repeater-Builder] New Product, Audio Processing Module for Repeaters and Links. Hi all, You may remember the thread on audio quality a few weeks back. One topic was a replacement module for the stock audio processing circuitry which is a major cause of limited bandwidth from some manufacturers and models of equipment used to build repeaters and links from. I and happy to announce the release of the prototype audio processor (clipper/filter) module from Repeater Builder. This product is being offered for sale as a prototype. Although it has been thoroughly tested by the designer and Repeater Builder, and changes implemented to insure its operation, this board will likely not be a final product. This simply means that we will likely do a board revision in the future *if* there is enough interest in this product. The current board has mounting holes that are uncomfortably close to solder pads, and extreme care must be exercised when mounting the unit so you don't short out the circuitry. We would also like to add connectorization to the next board revision. It should be noted that these shortcomings in no way affect the operation of the board. We feel the circuit is perfected, just the layout needs some work. Orders are handled via email as we only have 12 boards for sale at the time of this writing. The board comes with instructions for set-up and a basic schematic for troubleshooting. Go here for more details and ordering information: http://www.repeater-builder.com/products/processingorder.html Kevin Custer Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Mast Materials
I need to raise a full size Sinclair collinear up about 20 from a substantial I beam steel mount. I've got access to schedule 80 steel conduit, as well as other pipes, but am not sure how that compares to a 'reinforced mast', other than it is heavier. What do they do to reinforce a 2 mast? Obviously if I can use what I have it would save money, I had thought of dropping a piece of angle iron inside the full length, drilling holes and welding all three edges of it where it touches the pipe several places along the way and then replating, but that sounds pretty heavy. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Lightning Protection
It would be smart to run a awg4 solid/bare copper wire to the top from a wide spread grounding rod array and use this with split bolts along the way for your antenna/s for grounding, the flange or slip joints don't really do well after 5-8 years of oxidation and mechanical coating/paint decay. You can be assured of a good system ground by following NEC article 250, one thing that is tough to understand about the code is the adding of grounding spurs using split bolts to other racks along the way down or up depending on which side you are looking from - the grounding of the service entrance and grid must be exothermic meaning crimps tubes which can not be backed off with wrenches, extension of the grid may be done any way fashionable with 250, meaning fence doorways can be made flexible as desired but the main ground for the load center and the top of the tower must never be allowed any adjustments or changes except for additional conductor taps as needed. Thanks, that is a good idea. Just to clarify though, exothermic requirements refer to cadweld type connections, the other requirements are 'irreversible crimp' which refer to the sleeve or tube that is crimped and cannot be taken off. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Lightning Protection
Exothermic is a connection not soldered, could be crimp tubes or cad welded as used on the tops of the ground rods. It is dangerous to cad weld up in the air - the discharge could start roofing on fire or cause other cables and site personel trouble, I always pack around the holes with thumb gum used as the seal between building penetrations and in/out bound lines, it is available in a number of styles which all have equal integrity but the point I am trying to make is even when the wires are wrapped with something around the mold body the sparks and discharged copper spread wide and hot causing what looks like fireworks show. If you have ever been near a shorted primary feeder and had your skin filled with small copper balls you will know why not to do cadwelding very far above grade, if anything goes astray it burns right thru face sheilds, conventional clothing, needless to say skin, hair and eyes. Can't argue with you about the hazards, I'm quite aware of that. However, Exothermic (by definition) is a process in which heat is given off to the surroundings. Exo- is out side, -thermic is heat. An irreversible crimp sleeve in no way qualifies as Exothermic, though soldering could certainly qualify to the broad definition since heat is given off to the surrounding during the process. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Lightning Protection
Installing VHF and UHF antennas on some towers in locations where the whip may extend above the highest point of the tower, essentially becoming the lightning rod makes me wonder if I'm doing all I can. Currently my plan is a good DC grounded antenna, grounding kit bonding the heliax to the tower just below the antenna and again where it leaves the tower headed into the building. Grounding kit bonded to the grounding bus bar on the exterior of the building where it enters, polyphaser lightning arrestor inside the building grounded to the inside bus bar. Am I missing anything obvious? The polyphaser seems rather small, but they must be able to do the job. Just trying to do all I can to protect the equipment. Thanks in advance Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Duplexer Cable Legnth
There always seems to be one in every group. I'm aware of coaxial velocity and how to calculate that. However, that in itself does not provide the answer to the question. Once one determines the velocity factor for the coax being used, he can calculate different electrical wavelengths of the coax. Those include a full wave length, half, quarter, and a whole gaggle of fractions. Not all of those solutions will provide proper coupling between duplexer and radio, hence, the answer to determining the optimum length of cables between the duplexer and the radio is NOT coaxial velocity factor. Thanks for playing. 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| This formula is in the novice and tech books for ham radio licensing, coaxial velocity factoring. Daron J. Wilson wrote: Is there a formula to calculate the cable legnth between duplexer cans? I find reference to the formula for the cable legnth coming from the duplexer to the TX-RX, but not between the cans. Where did you find (what is) the formula for jumpers from the duplexer to the transmitter and receiver? Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Duplexer Cable Legnth
Is there a formula to calculate the cable legnth between duplexer cans? I find reference to the formula for the cable legnth coming from the duplexer to the TX-RX, but not between the cans. Where did you find (what is) the formula for jumpers from the duplexer to the transmitter and receiver? N7HQR Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Anyone out there using the Arcomm RC-210?
Have it, love it, so far it does exactly what Ken says it will. Best part, I can actually talk to the guy who built it and wrote the code. You find a problem and he is right on top of it. I don't think there is a better deal for the money. (Ken...you owe me coffee now :) 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| -Original Message- From: Dave Fortenberry [mailto:[EMAIL PROTECTED] Sent: Monday, March 22, 2004 10:37 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Anyone out there using the Arcomm RC-210? Any of yooz folks using the Arcomm RC-210?? Looks like a great deal, for the capabilities it has. Let me know about any positives or negatives. (forgive me, Ken! I tend to research everything to death before investing) http://www.ah6le.net/arcom/index.html na6df Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder]
Find a telephone company storage yard and steal it. Nice approach You can get CAT-5 Shielded Twisted pair. But you will need to splice it your self, And I think the longest you can get it is 1000 feet. And look to spend $80 to $150 per box times 4. And then you have to worry about line loss, ground loops and lightning strikes, Oh and did I mention what happens when some one inadvertently digs it up? Not the right choice for your application at all, don't waste your time burying that stuff that far. If you are going to push audio that far on the cable you will likely need to do some conditioning on it, if you are interested in just dc control voltages, that's much easier. I pay .13 a foot for 3 pair Cat3 direct burial phone cable, you can probably find a better price on 3000' worth. It has a heavy poly jacket and a copper shield for rodent protection and shielding. For splicing you can easily use 3M scotchloks, they pinch together with pliers and are gel filled to keep any moisture out. There is a wonderful splice box made by Klick-it. It is yellow plastic, and comes in two halves. After you splice the conductors and bond the shields together, you press the two gel filled halves together until they click and you are set for direct burial. N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [[Repeater-Builder] re: Kevin's spectrum equipment]
I've got 5 of them running, they aren't the greatest indeed, but if anyone has one as a doorstop lemme know, I'll put it on a mountain and use it. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Re:New group
I've signed up for that one but it seems to require a new sign up every day. A new group has been set up to discuss setting up new groups. http://groups.yahoo.com/group/departmentofredundancydepartment Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] GE Mastr II Audio Problem
I have a GE Mastr II UHF repeater that has been doing pretty well for me, last trip to the hill was a low power issue and I spotted a nice blue spark where the coax attaches to the PA board on transmit, rather easy fix. However when I enabled the local speaker, it caused a feedback type howl on receive. As I decrease the volume on the local speaker it gets worse, and the only way to keep it out at all is full volume on the local speaker. Anyone had this with a mastr ii and know what it is? 73 N7HQR Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] GE Mastr II Audio Problem
I have a GE Mastr II UHF repeater that has been doing pretty well for me, last trip to the hill was a low power issue and I spotted a nice blue spark where the coax attaches to the PA board on transmit, rather easy fix. How do you have it connected? On either the base or mobile version, it should connect with an RCA jack. This is a repeater chassis, the 40 watt PA, and the RF leaves the PA board and goes to the filter board via a small coax soldered on both ends, it's the standard set up. However when I enabled the local speaker, it caused a feedback type howl on receive. As I decrease the volume on the local speaker it gets worse, and the only way to keep it out at all is full volume on the local speaker. I've seen many cases where the audio transistors will go into oscillation when the speaker is disconnected, but not when you simply turn down the volume. But then again, considering your above info, is this on an IDA board (the only one I know of that has a pot to turn) or is your audio connected OEM or something else? I.E. Are you removing the load from the audio amp? Standard repeater chassis, there is a local speaker in the base of the chassis and a switch to enable it or disable it. I'm assuming that the design is such that the thing will run normally with the speaker disabled, I'll have to trace the thing out to see if the switch that disables the speaker puts a load across the audio amp. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
