[Repeater-Builder] Module ID
I just received a bunch of loose items ( some would call junk) and I found a couple of these modules in some ht's. The marking on the edge of the pc board reads (MAXON CA-111C). The marking in the ic chip is MX-COM MX335J. I know this could be an encoder/ decoder, just wondering how to use it if possible and is there any market value in them (2). Thanks 73 Mike - N7ZEF
[Repeater-Builder] Coax Help
Howdy; I was given today 2 pieces of mini-hardline marked Andrews Type 204909. It is the size of mini-8. I think this is 50 ohm, but what would be the velocity factor of it? I want to use it to make lines for 146.7/146.1 and 443.3/448.3 between radio and cavitys. Putting on the ends, does it take anything special, I would like to use solder on type id I could. Appreciate any help I may get... 73 Mike - N7ZEF
[Repeater-Builder] Re: Usage of Linked Repeater Systems vs. Stand Alone Repeaters
Up until some recent interference problems up there, our UHF up there has been known to hear mobiles traveling Interstate 80 through Wyoming... but unless they're going north through Denver and we ask them to stay with us to see how far they go, they'd never think to look up our repeaters when headed across Wyoming! http://www.laramie.org/facts/directions.htm#us287 From that map, we talked to a mobile who had a 35W UHF radio and a nice Diamond high-gain antenna from Castle Rock to 5 miles East of Laramie, WY -- via the I-25 north to I-80 route on our single UHF high- site repeater, with the only drop-out being down in the hole where Cheyenne, WY sits. Laramie is 140 miles away. http://www.laramie.org/facts/ (By the way... these two facts on that web page are inter- related... just for fun... since we're all computer geeks here... Laramie is traversed by 2 nationwide fiber optic carriers 1 digital microwave route Union Pacific Railroad mainline operates over 55 freight trains on a daily basis through Laramie Guess where the fiber runs along?) Only 2 fiber lines? MCI,ATT,Sprint,Enron(or whoever has it now)..Saw them all go in both sides of the tracks... He wasn't copyable for about 5 minutes, but he hung in there to see what the repeater would do. He was hill-topping as he climbed the pass out of Cheyenne with short drop-outs behind hills, as he traveled up into the forest and up to the top of the ridge above Laramie he got better and better, then he was gone... 5 mi east of Laramie is the Summit, highest point on I-80, where on can see the statue of Lincoln looking down on the road... If I ever move away from here, I'm going to wonder what the heck is wrong with my VHF/UHF mobiles, if I end up somewhere in the flat- land. I'll think they're broken! -- Nate Duehr, WY0X [EMAIL PROTECTED] I live 99 mi to the west of Laramie, and there used to be a statwide link here also. Politics, personal problems, lack of interest and it went away. Just a few sections left. A few of us up here have looked into trying to get into a system like the Connection (which we can hear the Walden machine), just a lack of local support. Just a few of us do all the work...The rest complain or make demands with little or no support... Have a happy Turkey Day everyoneI have to go to work... 73 Mike - N7ZEF
[Repeater-Builder] Motorola-Yaesu
This is from a friend who has worked for the motorola people from years agowhen there was company shops. He works in communications for the RR locally... Probably be known as Mo-junk! Kenwood is kicking everyone's ass on the commercial front. It'll be interesting to see who still stands once the narrow band stuff comes around on the commercial side in 2012. Motorola bought one of the best digital microwave radio companies when the bought out Orthogon. Motorola's philosophy has always been if you can't compete against it, buy it.
Re: [Repeater-Builder] Radio Question
Model # of the radio is D43KXA7JA5BK - Original Message - From: Mike Morris [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 08, 2006 10:06 PM Subject: Re: [Repeater-Builder] Radio Question At 05:11 PM 03/08/06, you wrote: I have a friend that has access to some Motorola Spectra radios in the VHF (160mHz) area. Look at www.reepater-builder.com ... go to the Motorola page, then the Spectra page. Look at the ranges section. The low range is 136-162MHz, the high range is 146-174MHz. Either will work well as a 2m mobile, but the low range is preferred. What is the ACTUAL model number AND the ID number off the label? Are these radios good radios, They are top-of-the-line previous generation public safety grade. Motorola no longer provides depot service for them so most agencies are selling them off. The time bomb capacitor problem didn't help. and will they work for a 2 meter repeater? Not as the repeater transmitter itself. Look at the size of the heat sink. It's the old mobile-in-a-continuous-duty-environment problem. Mike WA6ILQ 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] Radio Question
I have a friend that has access to some Motorola Spectra radios in the VHF (160mHz) area. Are these radios good radios, and will they work for a 2 meter repeater? Thanks 73 Mike - N7ZEF 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: Re: [Repeater-Builder] G6 144b coil
I repaired out APRS digi today. It has an G6 on it. Bracket holding the antenna to the tower came loose and fell to where the antenna was just held up by the coax 20 ft in the air. Got the antenna/ brack mounted back on the tower, replaced the coax, and the antenna works just fine. Now I see why the club uses the G6 so much... 73 Mike - N7ZEF - Original Message - From: Kevin Custer To: Repeater Builder Sent: Sunday, March 05, 2006 5:37 AM Subject: RE: Re: [Repeater-Builder] G6 144b coil Subject: RE: Re: [Repeater-Builder] G6 144b coil From: "Kevin K. Custer" [EMAIL PROTECTED] Date: Fri, 3 Mar 2006 08:06:50 -0500 To: Repeater-Builder@yahoogroups.comI disagree...Like any other cheap solution, with the proper care (replace ground plane radials with solid rod, heat shrink the joints and top) the Hustler G series will work fine in Full Duplex Applications. I have some that have been up for over 10 years and are still doing fineKevin Custer--- Original Message ---From : James[mailto:[EMAIL PROTECTED]]Sent : 3/3/2006 7:03:29 AMTo : Repeater-Builder@yahoogroups.comCc : Subject : RE: Re: [Repeater-Builder] G6 144b coilJoe, I always found that the G6, and G7 had high desense when used in a FDX application. Also, the overall thin aluminum design of these things keeps me from putting them on a tower where I can't easily get to them. Lastly, the radials on my G7 never seemed to stay in one spot (the ends of them crushed down over time under the mounting plate). The cheapest thing I have used on my 2 meter repeater stuff now is a Diamond that was silver soldered at every joint.James YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Lookin for information
I am in need of assembly instructions for an AEA 2 meter Isopole. My net searches havn't come up with anything. Would anyone have a copy of this info or know where I could find it? I plan to use this antenna for a local low power project. Thanks in advance. 73 Mike - N7ZEF 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] G6 144b coil
We use a lot of G6 in our repeaters for the club. The hold up very well. G7 on the other hand, we had nothing but problems with those. Bad rivets, radials fell off, noisy. Wasn't worth the powder to blow them to ... 73 Mike - N7ZEF - Original Message - From: Lee Williams [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, March 03, 2006 6:56 AM Subject: Re: [Repeater-Builder] G6 144b coil I ran a G6-144 on my 2 meter repeater for 22 years,worked very well but succumbed to a 2 coating of ice when it started falling from the tower above it. Smashed it pretty bad,along with many other antennae. The G7 we replaced it with was another story,pure junk. Maybe the old G6 was better built??? Now using a Diamond F23A and a DB-224. 73,Lee,N3APP James wrote: Joe, I always found that the G6, and G7 had high desense when used in a FDX application. Also, the overall thin aluminum design of these things keeps me from putting them on a tower where I can't easily get to them. Lastly, the radials on my G7 never seemed to stay in one spot (the ends of them crushed down over time under the mounting plate). The cheapest thing I have used on my 2 meter repeater stuff now is a Diamond that was silver soldered at every joint. James Joe wrote: I was not the person looking for the coil, just made a comment about the Hustler antenna. Just wondering, what didn't you like about it? I used a Hustler for 2 and 220Mhz with good results years ago. Recently, I bought a couple of G7-144 and were not happy with them. 73, Joe, k1ike At 08:43 PM 3/2/2006 -0500, you wrote: I have a complete G7 that I just pulled from back-up service. Never was really happy with the way it worked. If you are local to CT area, email me direct. James WJ1D 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] Lookin for information
I found this site also. It requires a program to extract it, and I just don't want to add another program to this machine. Thanks for looking... 73 Mike - N7ZEF - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, March 03, 2006 6:05 PM Subject: Re: [Repeater-Builder] Lookin for information At 05:53 PM 3/3/2006 -0700, you wrote: I am in need of assembly instructions for an AEA 2 meter Isopole. My net searches havn't come up with anything. Would anyone have a copy of this info or know where I could find it? A google search produced this: ftp://bama.edebris.com/bama/aea/isopole/aea isopole.djvu Ken -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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: Antenna advice
Thanks to all for the info I needed on these antennas. With the nice weather around here, I have some projects to do. I have a few questions though... The 4 bay antenna is shorter than the 2 meter version, so I think I will need to lengthen it a bit. How should I secure the new metal to the old metal? How would I tune each element? All I have for equipment is an MFJ antenna anylizer. I haven't checked the harness yet, so if I need to change it, what kind of coax do I use? Can I use connectors and tee to make the new harness? I have built beam antennas, but this is a new area to me. Thanks for the advice. 73 Mike - N7ZEF - Original Message - From: skipp025 [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 28, 2006 10:18 AM Subject: [Repeater-Builder] Re: Antenna advice Let me see if I can help with the DB Antenna, which from the size reads like something for the VHF Range. We've done the work for you... go to the repeater builder web page www.repeater-builder.com and look at the Decibel Antenna drawings that others and myself have provided. The VHF Antennas from 138-174MHz were made in three or four models that covered smaller portions (band segements) within the above listed frequency range. You'll see something like DB-224A, DB-224B and DB-224C as examples of them mentioned. You'd first want to ID what model you have and then figure out if it would work for your needs. The various models do go out of band a bit, but I've not found the VHF antennas to be as usable out of band as the UHF versions seem to be. The physical size of the dipole is the better indicator of where the antenna operates (band segment). If the DB Ant is another 160 MHz model ... I would say it's not going to be easy to mod and use it for 146MHz (2 meter) operation. If you look at the DB Antenna drawings we've provided, you'll notice the physical size of the Dipole Elements change quite a bit when moving from the 138-150 segment vhf antenna up to the 150-162 segment (frequecies ranges may not be the exact values, used for the example only). The coax harness also changes for the band segments. I've found it not so easy to get a 150-160MHz and higher band segement to work well down into the ham band. Since the dipole elements change size at the 150 MHz breakpoint it's not really easy to (increase the size of...) resize/mod the Dipoles Elements without major metal work. You then have to make/copy or buy a replacement coax harness for the lower band segment once you rework the Dipole sizes . Life goes on... hope that helps a bit. cheers, skipp n7zef [EMAIL PROTECTED] wrote: I was recently given 2 antennas, and I need to know if they could be useful for 2 meters or in the scrap yard. One is a Sinclair 2 bay antenna Model # SRL210C2HD*2. Sticker on it says the frequency os 160.860. The other is unknown. It is a 4 bay antenna with just the elements and phasing harness, no boom. Each element measures 34 in total length OD, 2.75 in width OD, 1/2 inch dia tubing. The wording stamped in the phasing harness says D.B. Products. Like I said, I would like to know if these could be made to work on 2 meters... 73 Mike - N7ZEF 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] Antenna advice
I was recently given 2 antennas, and I need to know if they could be useful for 2 meters or in the scrap yard. One is a Sinclair 2 bay antenna Model # SRL210C2HD*2. Sticker on it says the frequency os 160.860. The other is unknown. It is a 4 bay antenna with just the elements and phasing harness, no boom. Each element measures 34 in total length OD, 2.75 in width OD, 1/2 inch dia tubing. The wording stamped in the phasing harness says D.B. Products. Like I said, I would like to know if these could be made to work on 2 meters... 73 Mike - N7ZEF 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: Beer keg resonators - kind of off topic, but relevant
There was an article in 73 mag years ago about building cavitys out of galvanized garbage cans. I'm sure someone has a copy of that article... 73 Mike - N7ZEF - Original Message - From: Dick To: Repeater-Builder@yahoogroups.com Sent: Saturday, February 25, 2006 6:13 AM Subject: Re: [Repeater-Builder] Re: Beer keg resonators - kind of off topic, but relevant COOL!!! You're 1/2 way to a good duplexer. Dick - Original Message - From: Neal Newman To: Repeater-Builder@yahoogroups.com Sent: 25 February, 2006 04:50 Subject: Re: [Repeater-Builder] Re: Beer keg resonators - kind of off topic, but relevant I dont have any 1-5/8 hardline. But I do have access to some 3" hardline.Dick wrote: Some 3" or 4" copper pipe works really well. Dick - Original Message - From: Laryn Lohman To: Repeater-Builder@yahoogroups.com Sent: 24 February, 2006 19:33 Subject: [Repeater-Builder] Re: Beer keg resonators - kind of off topic, but relevant --- In Repeater-Builder@yahoogroups.com, Neal Newman [EMAIL PROTECTED] wrote: Im still looking for a Set of cans for 6 meters55 gallon drums???Laryn K8TVZYahoo! 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/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Looking for VHF Engineering Company kits, boards, etc. to buy
I have a receive section for a local system we had here until it was upgraded... 73 Mike N7ZEF - Original Message - From: mch [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 01, 2005 10:30 AM Subject: Re: [Repeater-Builder] Looking for VHF Engineering Company kits, boards, etc. to buy Most of them, if not all, were continued on by Hamtronics, and updated. They still make the kits. Joe M. Mark Nallick wrote: I am looking for any of the older VHF Engineering boards or repeaters. The company went out of buisness in the 70's I believe. I have a TX-144 which I purchased new from them while they were still in buisness. TNX Mark / WA4MN 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] Source for RF enclos
Try Velltronics. There are stateside dealers, as well as the website... 73 Mike N7ZEF - Original Message - From: Ken Arck [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, December 01, 2005 10:56 AM Subject: Re: [Repeater-Builder] Source for RF enclos At 09:50 AM 12/1/2005 -0800, you wrote: I suppose you could build one out of unused double sided circuit board ... ---I used to do that (back when copperclad was reasonably priced). Nowadays, it's much too expensive me thinks. I remember building an RF tight enclosure, back in the 80's, for an 8086 PC motherboard and associated hardware, for use as my first computer based repeater controller. Hammond is now the way to go, IMHO . Cheap, effective and readily available Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We offer complete Kenwood TKR repeater packages! We are now an authorized Telewave Dealer! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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/
