[Repeater-Builder] Re: Repeater Funding

2006-01-05 Thread Dave VanHorn
I got 5 dual-band antennas and 500 ft 1/2 hardline for 5 remote receive sites that was put on water towers. Lucky guy! We aren't having any luck getting onto water towers, even WITH ema support. There's one locally that is in a perfect location, owned by the local water company.. No

[Repeater-Builder] Re: Repeater Funding

2006-01-05 Thread Dave VanHorn
--- In Repeater-Builder@yahoogroups.com, Vincent Caruso [EMAIL PROTECTED] wrote: Whats the issue with the water company site? In one case, it was just a flat out NO, with no appeal, no logic, no reason.. In another, security concerns. Yahoo! Groups Links * To visit your group on

[Repeater-Builder] Re: had a little power supply trouble the other day...

2006-01-05 Thread Dave VanHorn
--- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: http://www.wv7u.com/audiovideo/Transformer%20Failure.mpg Needs a bigger heat sink :) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To

[Repeater-Builder] Re: Repeater Assistance in Michigan.

2006-01-05 Thread Dave VanHorn
For starters dump the RG 8 Feedline AMEN! Icky icky icky.. Could be worse, at least it's not a UHF machine! 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:

[Repeater-Builder] Re: Repeater Funding

2006-01-05 Thread Dave VanHorn
We had to have a structural analysis done to prove we weren't going to cause the tank to collapse (no, I'm not joking). Now THAT's funny! Brother, I feel your pain. Your whole antenna system probably weighs less than 100 gallons of water, even covered with enough ice to collapse it.

[Repeater-Builder] Re: Repeater Funding

2006-01-05 Thread Dave VanHorn
--- In Repeater-Builder@yahoogroups.com, Vincent Caruso [EMAIL PROTECTED] wrote: Thats tough when they arent willing to go beyond NO Yes.. Hard to deal with it when they won't even discuss. So for now, we keep building up the new gear, and will probably install it in our existing site which

[Repeater-Builder] Re: Micor Channel Elements KXN1052A

2005-12-10 Thread Dave VanHorn
I would contact them, and let them know what frequency it ended up at, and take it from there. Pulling a crystal off it's resonant point is not a very good idea. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To

[Repeater-Builder] Re: Connectors wanted

2005-12-10 Thread Dave VanHorn
Well, I made an interesting discovery today. My local hobby store carries K+S hobby metal. Their 9/16 tubing makes almost an exact collett for taking up the space between the FSJ1-50 and the LMR-400 crimp style N connectors. A 3' piece cost me almost $4 with tax. So, I cleaned the tubing

[Repeater-Builder] Connectors wanted

2005-12-09 Thread Dave VanHorn
Preferrably silver plated, N for FSJ1-50 Need 20+ email [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!

Re: [Repeater-Builder] Digest Number 3483

2005-12-03 Thread Dave Frechette
Some ham friends of mine have these devices and they work great for just the thing you want to do.Repeater-Builder@yahoogroups.com wrote: There are 3 messages in this issue.Topics in this digest:1. Re: DeviationFrom: Nate Duehr <[EMAIL PROTECTED]>2. Re: Wireless Auto PatchFrom: Nate Duehr

Re: [Repeater-Builder] Side mounted DB-224 for omni coverage?

2005-08-12 Thread Dave Baughn
vice-versa. Dave Baughn Director of Engineering The University of Alabama Center for Public Television and Radio Box 870150 Tuscaloosa, Alabama 35487 205.348.8622 cell 205-310-8798 NEW EMAIL [EMAIL PROTECTED] [EMAIL PROTECTED] 08/12/05 04:08PM Hello Group, Have a dual antenna system for a 2M

Re: [Repeater-Builder] Still after

2005-07-24 Thread Dave VanHorn
At 07:09 PM 7/24/2005, Mark A. Holman wrote: Wanna hear what some co's doing ? plastic cans :( Sounds like wine in a bag, or a pocket full of gasoline, not a terribly good idea. Yahoo! Groups Links * To visit your group on the web, go to:

Re: [Repeater-Builder] VHF Splitter

2005-07-23 Thread Dave VanHorn
At 06:01 PM 7/23/2005, drwoolweaver wrote: Ham club wishes to use one VHF receive antenna for three different VHF receive systems. Two VHF repeaters and one packet digit. Any suggestions on how this can be done and where is the best place in the antenna system to install a preamp? Transmitters

Re: [Repeater-Builder] Re: OT: NC man charged with 'driving a cop car' due to ham antennas

2005-07-22 Thread Dave VanHorn
At 05:38 AM 7/22/2005, Mike Pugh wrote: But does it pass the common sense test? I agree, it is legal and within our rights to possess the thing, but knowing that possession alone could possibly get you into trouble, Isn't that an oxymoron? and knowing that you had no need to own it besides to

Re: [Repeater-Builder] Re: OT: NC man charged with 'driving a cop car' due to ham antennas

2005-07-22 Thread Dave VanHorn
At 11:12 AM 7/22/2005, Jim B. wrote: Mike Pugh wrote: Whether he DID or DID NOT do anything illegal is up to the courts to decide. Apparently, one can infer from the arresting officer's actions that the officer had probable cause to arrest him based on what he observed Mike No-only

Re: [Repeater-Builder] Still after

2005-07-22 Thread Dave VanHorn
At 01:21 PM 7/22/2005, Kris Kirby wrote: On Fri, 22 Jul 2005, Jeff Condit wrote: Standard coffee cans solder together pretty easily because of the tin plating they usually used, provided you have a soldering iron with a good sized copper tip. A few of them started being plastic coated and

Re: [Repeater-Builder] VHF into aircraft

2005-07-21 Thread Dave VanHorn
At 12:52 AM 7/21/2005, Mathew Quaife wrote: Well, I have not heard anything from the FAA, but I can still see the spurs on the SA, not real bad. But it still seems that I am riding along the 132.950 at least on my radio, but I get a few miles from the house and nothing. I'm still using the

Re: [Repeater-Builder] VHF into aircraft

2005-07-21 Thread Dave VanHorn
I spend the extra money and save money by using International or Bomar. International is in some kind of screwed up situation, think due to them buying out Sentry, with 6 + weeks delievery. Bomar cost more, but both make an excellent crystal. I've had good results from West, in canada.

Re: [Repeater-Builder] VHF into aircraft

2005-07-21 Thread Dave VanHorn
At 11:30 AM 7/21/2005, Mathew Quaife wrote: I'm starting to think it is either something coming in or the Vocom Amp that is the culprit, but something is funny. I know my Yaesu FT7736R is a very clean transmitter, and at two watts output, really hard for it to send spurs out. Check it

[Repeater-Builder] Re: MOTOROLA MICOR receiver VHF

2005-07-20 Thread Dave Baughn
Sounds like intermod. Dave Baughn Director of Engineering The University of Alabama Center for Public Television and Radio Box 870150 Tuscaloosa, Alabama 35487 205.348.8622 cell 205-310-8798 NEW EMAIL [EMAIL PROTECTED] [EMAIL PROTECTED] 07/20/05 08:37PM it SQUEALING like it hereing a signal

[Repeater-Builder] VHF into aircraft

2005-07-20 Thread Dave VanHorn
How's it going up there? 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:

Re: [Repeater-Builder] Controller

2005-07-19 Thread Dave Maciorowski
Mornin' Jimmy, Anyone have a manual for the S-Com MRC- 100 controller in PDF or Need command structure to reprogram The MRC-100 short form command list is available at: http://www.scomllc.com/resource.shtml Dave - Dave Maciorowski, WA1JHK Author of S

Re: [Repeater-Builder] IOTA Switched Power Supply and Noise?

2005-07-19 Thread Dave VanHorn
At 09:43 AM 7/19/2005, Gran Clark wrote: Joe Carefully consider expanding into switchers. The designs are quite varied. To repair them you really need a good high frequency scope, shielded isolation transformer, 0.18 ohm 1000 watt resistor load, and most of all a good schematic. Switcher

Re: [Repeater-Builder] IOTA Switched Power Supply and Noise?

2005-07-19 Thread Dave VanHorn
If you do the calculations on wasted heat, this comes to an additional 4147 KWh per year on the Astron, and an additional 1175 KWh/ year on the IOTA. If you live in an area with 10 cents/KHh power (typical) then your power savings in one year will be almost $300. We don't pay the power bill at

Re: [Repeater-Builder] IOTA Switched Power Supply and Noise?

2005-07-19 Thread Dave VanHorn
Think how many houses have that exact same situation. I know I suffer from this big-time. Lots of wall wart devices. They are going to switchers though, it's finally come to the place where the switcher is cheaper than the iron and shipping from China. Last year, I needed a new wart for

Re: [Repeater-Builder] IOTA Switched Power Supply and Noise?

2005-07-19 Thread Dave VanHorn
At 05:18 PM 7/19/2005, Tony King, W4ZT wrote: One caution about these switchers. Many of the cheap switchers being made today both as chargers and supplies generate tremendous amounts of RFI. A number of my ham friends have experienced unbearable interference from these devices. Note that they

Re: [Repeater-Builder] IOTA Switched Power Supply and Noise?

2005-07-17 Thread Dave VanHorn
At 06:49 PM 7/17/2005, Bruce Nanney wrote: Does anybody have a web site to look at IOTA power supply? I need to find some to replace my power supplies in the future. Bruce KD4BOH.- I picked up one on ebay recently, very competitive pricing. Yahoo! Groups Links * To visit your group

Re: [Repeater-Builder]Wanted / WTB GE Master II

2005-07-17 Thread Dave VanHorn
At 08:36 PM 7/17/2005, Mark A. Holman wrote: Same Here whats a BHF ? Berry High Frequency, of course! :) 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

Re: [Repeater-Builder] ARU251 Repeater

2005-07-13 Thread Dave VanHorn
At 11:01 AM 7/13/2005, Mathew Quaife wrote: Can anyone tell me if the ARU251 repeaters use the Oven crystals, if so how can one be sure if they are oven xtals or if they are standard. An ovenized crystal should be sitting in a little cylindrical hat that has a heater in it. Usually a

[Repeater-Builder] APC-7 - N adaptors

2005-07-12 Thread Dave VanHorn
Anyone out there have a pair of APC-7 to N adaptors they would be willing to sell? 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

Re: [Repeater-Builder] Aviation Interference Issue (Update)

2005-07-11 Thread Dave VanHorn
At 04:24 PM 7/11/2005, Mathew Quaife wrote: Hi Bob, well I agree, I could spend hours trying to repair this one and never find the problem. It could be bad solder joints, ot a bad coil all together. Let me take a look before I have you send me that one. I have another exciter, can't recall

Re: [Repeater-Builder] Aviation Interference Issue (Update)

2005-07-09 Thread Dave VanHorn
At 09:25 PM 7/9/2005, Mathew Quaife wrote: First I would like to thank Dave from Muncie, IN and his father for coming out and assisting with the beast of a nuisance. Glad to do it, and glad to meet you! It was an interesting situation. After all the theories, the facts turned out

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
This reminds me of an incident many years ago when Industry Canada (then called DOC) contacted us re a ham 2 meter mobile interfering with aircraft communications. To make a long story short, the local ham wanted more power out of his transmitter and had physically adjusted the low pass

Re: [Repeater-Builder] Thinking about a whole new repeater

2005-07-08 Thread Dave VanHorn
At 08:47 AM 7/8/2005, Mathew Quaife wrote: If I'm to understand, would this cavity betuned to notch the 132.950 Mhz frequecny? Whatever it is that is interefering is an intermittant problem, as it is only evident at times. I have noticed over the past few days that the audio on the repeater

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 09:42 AM 7/8/2005, Mathew Quaife wrote: Ok, this brought up a good point. Just for sakes I took the watt meter, from the amp into a 50 ohm load, I get 140 watts out, into the duplexer's I get 70 watts out, something there has changed. With a 2.2 dB insertion loss, I should be getting right

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 09:42 AM 7/8/2005, Mathew Quaife wrote: Ok, this brought up a good point. Just for sakes I took the watt meter, from the amp into a 50 ohm load, I get 140 watts out, into the duplexer's I get 70 watts out, something there has changed. Wait a minute! You're saying that the amp is only

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 09:59 AM 7/8/2005, Mathew Quaife wrote: Oops on me, 140 into the duplexer with 70 watts out and a 2.2 dB insertion loss on the cans per TXRX. 3 Cans per side. I figured it up at 140 watts in which should give me about 88.6 watts back out of the duplexer. OK, that makes more sense, and

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 10:16 AM 7/8/2005, Mathew Quaife wrote: Well I just did a quick tweak on the tx duplexer, with 5 watts in I get three watts out, but then put the 140 watts in and still only get 75 watts out of the duplexer. Why would it change with higher power levels? I had asked that question once

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 10:45 AM 7/8/2005, Mathew Quaife wrote: Typically to say, there is nothing in this area as far as repeaters, a few on 460 Mhz and one on VHF at 158 Mhz, other than the two cell towers more than 5 miles away, that is about it. This gets into an area that I need to understand better, how do

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 12:12 PM 7/8/2005, Mathew Quaife wrote: Well here is the final results of what I have done this morning, and listening to the aircraft band, I have not heard anything come back as of yet. I reduced the duplexers to 4 cans rather than 6, with 140 watts into the duplexer, I am getting 105

RE: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-08 Thread Dave VanHorn
At 02:01 PM 7/8/2005, Bob Dengler wrote: At 7/8/2005 08:45 AM, you wrote: Typically to say, there is nothing in this area as far as repeaters, a few on 460 Mhz and one on VHF at 158 Mhz, other than the two cell towers more than 5 miles away, that is about it. The 2 vs. 3 cans on the TX side of

Re: [Repeater-Builder] Re: QRZ Database

2005-07-06 Thread Dave VanHorn
At 02:11 AM 7/6/2005, Doug W7FDF wrote: Problem resolved!!I disconnected the Linksys BEFW11S4 wireless router power source for about 30 seconds, reattached the power and then checked the QRZ website again.all is OK now. This has happened before where strange things happen while surfing the

Re: [Repeater-Builder] Re: QRZ Database

2005-07-06 Thread Dave VanHorn
At 02:40 AM 7/6/2005, Steven Passmore, kf6fkk wrote: My linksys used to stop working about once a week so I did exactly that. The timer shut it off for 1 minute at 4AM. Eventually I dumped the stupid linksys and am now using a linux box as a router. I haven't looked back since. It's on my todo

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-06 Thread Dave VanHorn
I powered down the Mastr Pro receiver, noise still there, only thing left was the cat controller, powered it down and noise is gone. This noise was heard over a large frequency spread in the aircraft band on the SM. Could it be possible that the controller could be the cause sending havac out

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-06 Thread Dave VanHorn
At 02:47 PM 7/6/2005, Bob Dengler wrote: At 7/6/2005 12:26 PM, you wrote: No - 157.870 IS the correct mix to combine with 145.410 and end up on 132.950 MHz - do the math again. The difference is 12.460 MHz. 145.410 - 12.46 = 132.950 145.410 + 12.46 = 157.870 Joe M. OK, 12.46 is the

Re: [Repeater-Builder] Thinking about a whole new repeater

2005-07-06 Thread Dave VanHorn
I'm not opposed to coming up there. I have some personal business to take care of tomorrow, and a committment on friday, but after that I think I'm free. We should be able to run it down pretty quick, at least to pin down what's causing it. Doesn't sound like you're having any trouble getting

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-05 Thread Dave VanHorn
At 08:48 PM 7/5/2005, Mathew Quaife wrote: Ok, the situation is that my repeater is being heard by commercial aircraft on 132.950 Mhz. Ouch! BTDT, with a kenwood synthesized transmitter that didn't detect out of lock properly. I had to pull the plug till it was resolved. I've looked at the

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-05 Thread Dave VanHorn
At 09:06 PM 7/5/2005, Ken Arck wrote: At 01:48 AM 7/6/2005 -, you wrote: Ok, the situation is that my repeater is being heard by commercial aircraft on 132.950 Mhz. At first they was able to identify one user of the system, this was in June. Then again the repeater was heard on June 22,

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-05 Thread Dave VanHorn
There is a wound of coax on the output of the exciter to reduce the power going into the amplifier, as the amp only needs 2 watts of draw to run it. That dosen't help you here, the stub specifically attenuates the bad frequency, and passes the good one. Your repeater cans probably don't

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-05 Thread Dave VanHorn
At 10:17 PM 7/5/2005, Mathew Quaife wrote: The Vocom amp is a commercial made amp, designed for repeater use, this particular model is no longer made, but the company still makes them, all new design and new staff. I think what my biggest concern is, that all of this did not crop up until

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

2005-07-05 Thread Dave VanHorn
At 11:56 PM 7/5/2005, Mathew Quaife wrote: I'm almost to the point of just scraping the iron and starting back at the basics. Actually I am almost ready to pull hairs. With so much time lapse in playing with this, I have forgotten most everything, so I really have to scratch my head. Might

Re: [Repeater-Builder] UHF Micor (mobile) spur - conclusion

2005-07-03 Thread Dave VanHorn
So it turns out to be the best kind of problem: someone else's. I'm not sure what we're going to do now... at least one person will be adversely affected unless I change repeater frequencies (AGAIN - long story) or he gets a different radio. At least now I can get these Micors off my test

Re: [Repeater-Builder] UHF Micor (mobile) spur - conclusion

2005-07-03 Thread Dave VanHorn
Service monitors and spectrum analyzers don't live out here in the sticks. BTW: Which sticks are you in? I'm in EC Indiana, with an SA that I could loan. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe

Re: [Repeater-Builder] UHF Micor (mobile) spur

2005-07-02 Thread Dave VanHorn
At 11:33 AM 7/2/2005, Paul Kelley wrote: Thanks Glenn. When I first noticed the 910 kHz relationship, 455 IF was the first thing that popped into my mind... until I realized the Micor doesn't have a 455 kHz IF. Darn, another good theory ruined... Since I have 3 similar radios exhibiting exactly

Re: [Repeater-Builder] UHF Micor (mobile) spur

2005-07-02 Thread Dave VanHorn
I just checked all the radios I've been using to monitor this spur in-house and all *do* have a 455 kHz IF. I will have to check the others which may take a day or two. Let me also see if I can find a receiver which does *not* use a 455 kHz IF to check it with. The second best kind of problem

Re: [Repeater-Builder] UHF Micor (mobile) spur (more test results)

2005-07-02 Thread Dave VanHorn
Obviously, this has noting to do with the subject but is a fun story. I've got one that I'm trying to track down.. A local 2M machine, on 146.730, is having a problem we call the horrible noise. I've never heard anything like it, and I've had no success at recording it. It sounds like some

Re: [Repeater-Builder] UHF Micor (mobile) spur (more test results)

2005-07-01 Thread Dave VanHorn
At 08:03 AM 7/1/2005, Paul Kelley wrote: On Friday 01 July 2005 08:43 am, Dave VanHorn wrote: Any possibility that it's coming from the power supply, and not actually the amplifier at all? Do you get it when running from a battery? Good thought. I tried 3 different power supplies

Re: [Repeater-Builder] Re: Chance of a Lifetime (kinda OT)???

2005-06-30 Thread Dave VanHorn
At any rate...I have contacted a property assesor. We'll see where that leads. Good luck! If nothing else, it ought to make a good field day site :) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from

[Repeater-Builder] Micor amp?

2005-06-30 Thread Dave VanHorn
I have an amp here, with the following number on: TLE1713A AFAIK, a micor 75-100W base amp for UHF. I need connection info, and anything that I need to do to it to prepare it for repeater service. Yahoo! Groups Links * To visit your group on the web, go to:

Re: [Repeater-Builder] Micor amp?

2005-06-30 Thread Dave VanHorn
At 07:15 PM 6/30/2005, Eric Lemmon wrote: Dave, The TLE1713A is a 75 watt PA for 450-470 MHz. All of the information about it is in Service Manual 6881025E50 which, unfortunately, has just been discontinued. These manuals are frequently available on auction sites. Thanks. I don't see any

RE: [Repeater-Builder] Splatter?

2005-06-26 Thread Dave VanHorn
At 07:19 PM 6/26/2005, Jeff DePolo WN3A wrote: What kind of repeater and ID'er are you using? And where in the transmitter audio circuitry is the ID audio being injected? I've dealt with several problems, mostly with commercial-band repeaters, where a cheap CW ID'er was hooked up to a

[Repeater-Builder] Splatter?

2005-06-25 Thread Dave VanHorn
I've just had a couple of complaints of splatter on a repeater that I now own. We overhauled it, retuning the cans, and setting the TX and RX back on frequency, replacing some cables that were dubious, but nothing really major found. The cans weren't far off, but I got another 6dB rejection

Re: [Repeater-Builder] Splatter?

2005-06-25 Thread Dave VanHorn
At 12:35 PM 6/25/2005, Ken Arck wrote: Dave Splatter infers a signal wide enough to spill over to an adjacent channel. Indeed, your description of them hearing your xmtr 30 KHz away confirms that. It is not an issue of duplexer tuning nor is it likely one of xmtr tuning. I only mentioned

Re: [Repeater-Builder] Splatter?

2005-06-25 Thread Dave VanHorn
At 04:10 PM 6/25/2005, Dave VanHorn wrote: At 03:15 PM 6/25/2005, Eric Lemmon wrote: Dave, You have done all of the right things, except you did not mention how much deviation your IDer is causing, or how pure its signal is. Many IDers deviate much more than is necessary. My personal preference

Re: [Repeater-Builder] Beamwidth ?

2005-06-21 Thread Dave VanHorn
At 10:50 AM 6/21/2005, KB5ILY - Travis W. Burton wrote: Hi, In doing the coordination form for non-ham repeater there were two lines that I am having trouble answering. Can someone explain ? The 360 361 are simply line numbers on the form, so ignore them. 360 Antenna Horizontal Beamwidth:

Re: [Repeater-Builder] OT: Crum Kermit WV

2005-06-21 Thread Dave VanHorn
If you're referring to the desolate desert road in SoCal off I-15, that's Zzyzx Road. That's the one! I actually exited the freeway there once. Nothing but a road down to a dry lake bed IIRC. Pretty hot there now: 110 in nearby Baker. When I was there, it looked like it had been that way

Re: [Repeater-Builder] Wacom 678-A

2005-06-21 Thread Dave VanHorn
At 02:21 PM 6/21/2005, Neil McKie wrote: Always terminate the un-used port in a 50 ohm load. A 20 dB pad will work here as the return loss is 40 dB. Termination is easy, and inexpensive. I've just begun to build my library of attenuators. Yahoo! Groups Links * To visit your group

Re: [Repeater-Builder] Wacom 678-A

2005-06-21 Thread Dave VanHorn
At 03:12 PM 6/21/2005, Bob Dengler wrote: At 6/21/2005 12:46 PM, you wrote: At 12:21 PM 6/21/2005 -0700, you wrote: Always terminate the un-used port in a 50 ohm load. ---Of course but I'm a firm believe in using a pad on every port. It's the only way to guarantee a 50 ohm load on

[Repeater-Builder] Antenna Downtilt

2005-06-21 Thread Dave VanHorn
How do you figure what downtilt angle to order? Presumably it relates to height and radio horizon, but I haven't found the relationship. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group,

[Repeater-Builder] Multiband antennas

2005-06-20 Thread Dave VanHorn
Other than the fiberglass sticks, what options are available to me in multiband antennas? At the outset, we will be putting up 2M and 440, and we are contemplating a 902 system. Of course I'd rather have one site on the tower, and one feedline if practical, but I'm leery of excessive losses.

Re: [Repeater-Builder] Multiband antennas

2005-06-20 Thread Dave VanHorn
At 02:28 PM 6/20/2005, Mike Morris WA6ILQ wrote: At 07:34 AM 6/20/05, you wrote: Other than the fiberglass sticks, what options are available to me in multiband antennas? At the outset, we will be putting up 2M and 440, and we are contemplating a 902 system. Of course I'd rather have one

Re: [Repeater-Builder] USA Repeaters

2005-06-20 Thread Dave VanHorn
At 03:54 PM 6/20/2005, steve wrote: Hi Living in the UK our repeaters are very closley monitored. What are the rules in the US for repeaters, do the FCC tell you what you can have. The FCC has the laws, then there are also local repeater coordination bodies who are (interestingly)

Re: [Repeater-Builder] Pwr Supply w/battery b/up

2005-06-19 Thread Dave VanHorn
Any suggestions on 35amp or so power supply with battery backup for short transitional switch over to generator power. We are on top of a hospital on generator power when needed. I've heard lots of stories of the astrons being RF sensitive. Kind of amusing considering they intentionally sell

[Repeater-Builder] Just came across this

2005-06-18 Thread Dave VanHorn
Interesting radio interface documentation, locations to tap for COR, etc for a large number of radios. http://www.pyramidcomm.com/data_an.html Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this

[Repeater-Builder] Johnson 9800 series

2005-06-18 Thread Dave VanHorn
Anyone know how I could get a couple of 9800's programmed? Software/interface, or someone has that capability, or ? 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:

[Repeater-Builder] Enough english lessons, how about selling some ham gear?

2005-06-17 Thread Dave VanHorn
Ok, anyone have PL encoder/decoder boards they would like to sell? Com-spec or similar, with docs either hardcopy or online preferred. 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

Re: [Repeater-Builder] 4-pole folded dipole ant.

2005-06-17 Thread Dave VanHorn
At 06:38 PM 6/17/2005, Joel Hall wrote: Hope you'all may help on this VHF 4 pole with it in omni config it has 6 db gain,all in one direction it has 9 db gain. what I need to know if it is side mounted with all dipoles one direction what is the reduction in db at 180 degree? Wouldn't it

Re: [Repeater-Builder] Help, repeater output heard on Aircraft Band

2005-06-17 Thread Dave VanHorn
At 10:10 PM 6/17/2005, Mathew Quaife wrote: I need some input, not critisism or what I should do, as I know what to do. I've seen this in a Kenwood VHF repeater. The cause was the VCO having drifted quite a ways from where it was originally calibrated. The repeater was apparently mode-hopping

Re: [Repeater-Builder] OT: Crum Kermit WV

2005-06-16 Thread Dave VanHorn
As far as RF is concerned, I'm sure there are States that have rougher terrain, but Southern WV is as bad as I've personally witnessed. They sell both sides of the same real estate :) My favorite exits are (so far) Stinking Creek Road, and XYZZY road. Yahoo! Groups Links * To visit

Re: [Repeater-Builder] Wacom 678-A

2005-06-15 Thread Dave VanHorn
At 01:05 AM 6/15/2005, Eric Lemmon wrote: Dave, Here's the WP-678 tuning instructions: http://www.repeater-builder.com/wacom/wp678-665-UHF-tuninginstructions.pdf AH! It's under the covers! I didn't know if those were screws or covers, or what. Thanks, all done now, it only takes a few

Re: [Repeater-Builder] Wacom 678-A

2005-06-15 Thread Dave VanHorn
If the jumper cables are the correct length, the combined performance of the cavities *should* be the sum of the individual cavities, minus the losses in the jumpers. That is a question, it was on 460-ish, now 440-ish. Seems like still a relatively small change, but I don't know EXACTLY how

RE: [Repeater-Builder] Exciter Power Adjust

2005-06-14 Thread Dave VanHorn
I suspect the shorter wavelength of 220 is able to be reflected and refracted inside the building much more easily than does 2 meter energy. I bet UHF would perform even better but there are too many variables to say for certain. For construction crews, 440-ish wavelengths are MUCH more

[Repeater-Builder] Wacom 678-A

2005-06-14 Thread Dave VanHorn
Does anyone have tuning instructions for these? The pass is easy, and it's done, but I don't see how to adjust the notch frequency. 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,

Re: [Repeater-Builder] RG400 or RG214/U

2005-06-14 Thread Dave VanHorn
At 11:48 PM 6/14/2005, Mike Morris WA6ILQ wrote: I really apologize I'm in the middle of a bad cold and on heavy drugs/decongestants and had a brain fart... I was thinking 142 and typed 214 and didn't recognize it... BTW for duplexer inter-can jumpers that require PL 259s I use the info and

RE: [Repeater-Builder] Radio Shack electronic parts availability

2005-06-13 Thread Dave VanHorn
Mail order is fine but it does not help much after work if you want to finish a project or on a weekend for the controller you just have got to get wired up and are missing the correct coaxal power plug. On-Line is OK too but with the likes of Mouser and Digi-Key that have everything under

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-11 Thread Dave VanHorn
At 12:59 AM 6/11/2005, mch wrote: Are you sure it's not just causing some odd propagation and they are seeing a distant station? Maybe the reverse of that. Brightening indicates less signal in analog TV. Yahoo! Groups Links * To visit your group on the web, go to:

Re: [Repeater-Builder] Mixing problem?

2005-06-11 Thread Dave VanHorn
At 12:06 PM 6/11/2005, Eric Lemmon wrote: Ray, I've seen the same symptoms occur when an inexpensive multi-band ham antenna is used, especially when the antenna is fairly close to the repeater and single-shielded coax feedline connects the duplexer to the antenna. Try using a good, broadband

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-10 Thread Dave VanHorn
At 06:19 PM 6/10/2005, Joe wrote: I've heard stories of people in the tornado areas watching an unused TV channel in their area. Tornados supposedly generate noise in the lower channels that you can see and identify as a tornado on TV. Despite the skeptics, it's well documented, and

Re: [Repeater-Builder] Re: WEATHER RELATED STATIC

2005-06-10 Thread Dave VanHorn
At 07:33 PM 6/10/2005, Coy Hilton wrote: Sorry DAVE, I couldn't resist. Really, what's the technical poop. 73 ac0y Apparently somewhat the same thing as the santa ana winds. Charged particles, rain, debris, whatever, colliding with each other. http://www.madsci.org/posts/archives/aug98

RE: [Repeater-Builder] Re: WEATHER RELATED STATIC

2005-06-10 Thread Dave VanHorn
At 08:29 PM 6/10/2005, Richard wrote: Actually I was referring to the static on the screen, but I believe you're right about the direction of spin in the hemispheres. So what does the static on the TV do during a tornado event? You get more static, but actually, what they say they are seeing

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-09 Thread Dave VanHorn
Hasn't tornado winds been documented to generate broadband RF noise primarily in the VHF region? Yes, and I've seen it in person. Also the other phenomena in santa ana winds, in Costa Mesa and Anaheim CA. At times, the static was so bad that I couldn't hear the high profile repeaters on my

Re: [Repeater-Builder] Re: regulator board war stories...

2005-06-09 Thread Dave VanHorn
Much of what happens directly relates to the battery condition and the charging circuit. Old tired dry batteries may not draw enough current to pop a fuse (or trip a breaker). Astron relies on a narly scr to crowbar the main fuse/breaker. Sounds like a case for checking your batteries

Re: [Repeater-Builder] Jumpers for a Sinclair Q-202G Duplexer

2005-06-09 Thread Dave VanHorn
One trick I saw done was to take a male-to-make adapter and a female-to-female adapter and screw them together. Put this set on the end of the each of the existing too-short harness segments, and try the tuning. It may be enough. If not, put another set on the other end of each cable. A bunch

[Repeater-Builder] Small Signals

2005-06-08 Thread Dave VanHorn
Does anyone have a pointer to a low level signal source, VHF/UHF? I don't have a service monitor, and I can't really justify one. I occasionally need to tune up a receiver. What I don't have, is a signal source at the 10uV and down level. I've used HTs and attenuators, but the leakage through

Re: [Repeater-Builder] Re: RS Astron up to 15 volts, will it be ok

2005-06-08 Thread Dave VanHorn
At 11:54 AM 6/8/2005, skipp025 wrote: Most Astron Supplies will easily operate at 15 volts output if you mod the crow-bar circuit for the higher fire/trigger voltage. If fact, they actually work better at the higher output voltage. Well, they end up with a bit less dissipation, due to the

Re: [Repeater-Builder] Small Signals

2005-06-08 Thread Dave VanHorn
At 12:41 PM 6/8/2005, Tony King, W4ZT wrote: Dave, A relatively easy thing you can do is to put a Mastr II exciter in a shielded box with a BNC connector for output. Hmm.. That would work if I had one.. It would have to be programmed or crystalled or something, right? Then again, I think I do

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-08 Thread Dave VanHorn
At 04:31 PM 6/8/2005, [EMAIL PROTECTED] wrote: Let's talk about static! Hi everybody! I'm experiencing high static levels in our repeater that appears to develop ahead and during serve weather outbreaks. Other times it seems perfectly fine. Could be precipitation static? Wind bouncing the

Re: [Repeater-Builder] regulator board war stories...

2005-06-08 Thread Dave VanHorn
Fuse the input of the supply appropriately, so that it will blow if the output is held to maximum for 10 seconds or so. See the buss guide called Fuseology on selecting fuses. I'm not a fan of the above fuseology methods. I would hope to reduce any glitch events to a much smaller amount

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-08 Thread Dave VanHorn
At 06:51 PM 6/8/2005, Kevin Custer wrote: Dave VanHorn wrote: If you've not seen what happens in southern CA with the Santa Ana winds, you'd never believe it. AMAZING levels of noise right across the VHF spectrum. AFAIK, not much you can do about that. Yes you can http://www.repeater

Re: [Repeater-Builder] WEATHER RELATED STATIC

2005-06-08 Thread Dave VanHorn
At 07:25 PM 6/8/2005, TGundo 2003 wrote: hERE IS A SILLY QUESTION: Where would you want to mount a static buster on a 4-bay antenna? On the top of the mast? I looked at the mounting instructions and that is the conclusion I have come too, but I could be way off. Seems right.. This would help

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