[Repeater-Builder] Some help
Looking for information on portable repeaters for use in SAR groups. Must be packable for use on hilltop operations. Can this be done and still keep the weight down and run off 12VDC? Even just a couple of HT at 5W out and a duplexer or the like would work. Suggestions? Thanks Dakota --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.776 / Virus Database: 523 - Release Date: 10/12/2004 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] Some help
I remember years ago someone was using MX300 series radios as full duplex. There was a mod for getting around the T/R relay and eliminating the muting. A small mobile UHF duplexer, and you're in business. As a matter of fact, I think the highway callboxes here in Connecticut used these radios. Unfortunately I found this out after they'd been dumpsterized and destroyed. It's a shame. 73 de N1FNE -Original Message- From: Dakota Summerhawk [mailto:[EMAIL PROTECTED] Sent: Thursday, October 14, 2004 9:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Some help Looking for information on portable repeaters for use in SAR groups. Must be packable for use on hilltop operations. Can this be done and still keep the weight down and run off 12VDC? Even just a couple of HT at 5W out and a duplexer or the like would work. Suggestions? Thanks Dakota --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.776 / Virus Database: 523 - Release Date: 10/12/2004 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] MSF-5000 analog station programming
We have had a MSF-5000 station donated to replace of of our UHF repeaters. This sation is one of the older analog units that require a PROM to be programmed to change the frequency. Does anyone on the list know of a source to get this done? Also, what options should be set to use the unit with an external controller? Thanks and 73, Kevin, K9HX 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] Direct TV type dish?
Hey Does any one know what frequency that the coax line coming from the LNB's to the receiver is? On direct TV. 73 Russ, W3CH 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.
[Repeater-Builder] Re: MSF-5000 analog station programming
Andy did mine. http://www.brinkleyelectronics.com/ Gary KB7TRP --- In Repeater-Builder@yahoogroups.com, Kevin Berlen [EMAIL PROTECTED] wrote: We have had a MSF-5000 station donated to replace of of our UHF repeaters. This sation is one of the older analog units that require a PROM to be programmed to change the frequency. Does anyone on the list know of a source to get this done? Also, what options should be set to use the unit with an external controller? Thanks and 73, Kevin, K9HX 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] MSF-5000 analog station programming
Kevin , I recall reading somwhere that http://www.brinkleyelectronics.com/ Will do this or have the info Good Luck Don KA9QJG 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] WACOM WP-641 Duplexer
I recently wondered the same thing about a Phelps Dodge six cavity duplexer here. I found that all six cables including the two to the tee connector were the same length: 8-3/4 inches tip to tip on PL-259 connectors. (http://repeater.w4zt.com/duplexer/) The problem here was noise, lots of it, and anytime one of those cables was moved even slightly the noise became much worse. These original cables were made from PDC's own house branded RG-8 cable and supplied pre-tuned on 146.625 MHz. I decided to replace the cables and assumed the same thing that Eric pointed out below, whatever length works, and the base assumption minimum length to fit worked for me. I replaced the house branded RG-8 with jumpers I made from Andrews FSJ1-50A 1/4 Superflex Heliax. I realized the VF was greater but shorter cables wouldn't reach so I made them the same as original. Details of my superflex to PL-259 connector project are here: http://repeater.w4zt.com/duplexer/superflex/. After completing the superflex mod I also welded up a bracket to hard mount the tee connector. I reassembled the harness and checked the duplexer. It was back to spec and NO NOISE! Move them, bang them, shove them, no effect. Problem solved! In this case, the difference in cable length made no measurable difference in performance but the move to the 100% shielding of the superflex heliax made a huge difference. If you're making cables, I would highly suggest you consider making them from the superflex heliax so you can completely eliminate the leakage and noise problems from your duplexer. 73, Tony W4ZT At 12:33 AM 10/13/2004, you wrote: Neal, The best answer to your question is probably: Whatever works! Both Bill Lieske of EMR and Len Pringle of Telewave have given me pretty much the same answer about jumper lengths for duplexers they manufacture. In most duplexers, the cavities are individually tuned for the desired insertion loss by adjusting the coupling loops or probes, and each cavity is tuned for the desired pass loss and notch depth. This is an iterative process, and eventually the technician has two or three high pass cavities that are identical, and two or three low pass cavities that are identical. At this point the technician selects a test jumper from a rack of pre-made jumpers that are arranged in 1/2 inch (usually) increments. From long experience, he picks one that he knows is close to being the right length. If each cavity had 0.6 dB insertion loss, he looks for a jumper that results in about 1.2 dB loss for the pair. If the loss is more than 1.3 dB, he'll try a shorter or a longer jumper until he finds one that gives the minimum combined loss. If this is a six-cavity duplexer, he'll add the third cavity and repeat the process, looking for about 2.0 dB total loss. If the customer wanted a deeper notch, each cavity's loops might have been set for a different coupling, which means that the optimum jumper cable lengths might not be the same. So, the jumper lengths are not always pre-calculated. Some duplexer manufacturers have just two or three cable harnesses that they use for all duplexers in a particular band, and these are compromises. Sad to say, many commercial installers have no interest in optimizing their installations, because that effort is time-consuming and is therefore costly. Hey, if it works, that's good enough! A purist does not embrace this one-size-fits-all approach! Regarding jumper cables, they should always be double-shielded; RG-214, RG-142, or RG-400 are good choices. Do not use RG-58, RG-8, or RG-213 because those are single-shield cables. 73, Eric Lemmon WB6FLY Neal Newman wrote: BTW the cans are WP-641's Neal Newman wrote: Hey Guys.. I am having a problem with my Wacom Cans... I am just curious what should the length be for the 4 jumpers.. the 2 between the cans and the 2 that meet at the output Tee. the repeater is on 145.230 and what type cable should be used ( I think it's RG-213?) I noticed that one cable is teflon... and 2 seem longer than the other 2.. I tookmMeasurements the jumpers between the cans measure 8.5 and 8.75 the 2 jumpers between the cans and the output tee measure 11.77 and 13.5 (teflon) I know this is not correct... Serves me right for loaning out the cans to friends club for a few years. For some reason I always thought all 4 cables should be about 13 but I may be wrong... Does anyone know the correct length? BTW I measured tip to tip of the pl-259's 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] Duplexer Question
Title: Duplexer Question Hey all, quick question about a 2 meter repeater I just put up for testing. I'm putting out about 80 watts from the PA into the duplexer, but only getting about 55 watts out of the antenna port on the duplexer. This seems kind of high to me. The specs of the duplexer are: Power handling - 150 watts (Im running half that) Min seperation - 1.5 Mhz (I'm running 2.55Mhz offset) Isolation at min sep - 90db (the plot I was sent with the duplexer shows better than 105db on both sides because of the wider spread) TX and RX loss at my seperation - approx 1.2db I'm also having some desense when the PA gets keyed, but I'm not sure if its the duplexer or a cabling issue yet. Have to do some further research. The duplexer came tuned from the factory on my freqs, and its a six cavity, BPBR type from Fiplex so I cant see it being a duplexer issue. Any input is greatly appreciated. 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.
Re: [Repeater-Builder] Duplexer Question
Title: Duplexer Question Your insertion loss may be a little high. It is under 3.0 dB, but is over 1.5 dB. (80, 40, 20...) Unless I am mistaken, your power out of the duplexer should be a tad over 60W to meet specs. Steve - Original Message - From: Kevin Bednar To: Repeater-Builder@yahoogroups.com Sent: Friday, October 15, 2004 10:27 AM Subject: [Repeater-Builder] Duplexer Question Hey all, quick question about a 2 meter repeater I just put up for testing. I'm putting out about 80 watts from the PA into the duplexer, but only getting about 55 watts out of the antenna port on the duplexer. This seems kind of high to me. The specs of the duplexer are: Power handling - 150 watts (Im running half that) Min seperation - 1.5 Mhz (I'm running 2.55Mhz offset) Isolation at min sep - 90db (the plot I was sent with the duplexer shows better than 105db on both sides because of the wider spread) TX and RX loss at my seperation - approx 1.2db I'm also having some desense when the PA gets keyed, but I'm not sure if its the duplexer or a cabling issue yet. Have to do some further research. The duplexer came tuned from the factory on my freqs, and its a six cavity, BPBR type from Fiplex so I cant see it being a duplexer issue. Any input is greatly appreciated. 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.
RE: [SPAM] - Re: [Repeater-Builder] Duplexer Question - Email found in subject
Title: Duplexer Question Thanks. I found the problem. Bad N connector on the TX cable which was also causing the desense. I upped the power to 100 watts into the duplexer and get 80 out the antenna port which is within spec, and now have no desense! :) Kevin From: Steve Grantham [mailto:[EMAIL PROTECTED] Sent: Friday, October 15, 2004 11:45 AMTo: Repeater-Builder@yahoogroups.comSubject: [SPAM] - Re: [Repeater-Builder] Duplexer Question - Email found in subject Your insertion loss may be a little high. It is under 3.0 dB, but is over 1.5 dB. (80, 40, 20...) Unless I am mistaken, your power out of the duplexer should be a tad over 60W to meet specs. Steve - Original Message - From: Kevin Bednar To: Repeater-Builder@yahoogroups.com Sent: Friday, October 15, 2004 10:27 AM Subject: [Repeater-Builder] Duplexer Question Hey all, quick question about a 2 meter repeater I just put up for testing. I'm putting out about 80 watts from the PA into the duplexer, but only getting about 55 watts out of the antenna port on the duplexer. This seems kind of high to me. The specs of the duplexer are: Power handling - 150 watts (Im running half that) Min seperation - 1.5 Mhz (I'm running 2.55Mhz offset) Isolation at min sep - 90db (the plot I was sent with the duplexer shows better than 105db on both sides because of the wider spread) TX and RX loss at my seperation - approx 1.2db I'm also having some desense when the PA gets keyed, but I'm not sure if its the duplexer or a cabling issue yet. Have to do some further research. The duplexer came tuned from the factory on my freqs, and its a six cavity, BPBR type from Fiplex so I cant see it being a duplexer issue. Any input is greatly appreciated. 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.
Re: [Repeater-Builder] Icom rp4020
At 02:10 PM 10/15/2004 -0500, you wrote: Jed I just checked and I think the Info you need is already here http://www.repeater-builder.com/rbtip/icom-index.html ---I already wrote Kevin about that. The pdf is apparently corrupt, as Acrobat doesn't like it (it gives all sorts of errors when loading) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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] Icom rp4020
Jed I just checked and I think the Info you need is already here http://www.repeater-builder.com/rbtip/icom-index.html Good Luck Don KA9QJG 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] Icom rp4020
Hey guys, anyone have the pin out for the Icom rp4020 so I can hook up an external controller? Thanks, Jed 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] Icom rp4020
[EMAIL PROTECTED] -Original Message- From: Don [mailto:[EMAIL PROTECTED] Sent: Friday, October 15, 2004 2:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Icom rp4020 It Worked for Me , if You like I can E-Mail it directly. send Me a E-Mail where if You want it. Don KA9QJG 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] WACOM WP-641 Duplexer
At 10/15/2004 09:19 AM, you wrote: Duplexer companies that use RG8, 58, 213, or any of that noisy crap should be burned at the stake :) ...including Phelps-Dodge? I don't think so. The only problem with the coaxes you mention is that the braid is not solid or silver-plated. If any water gets inside the coax in any way, the copper braid eventually oxidizes generates IMD. The noise you get is probably mixing between the TX carrier its sidebands, which you induce when you move the coax with it's millions of point-contact diodes. If the duplexer is kept in a controlled environment (not outside), the cables shoudn't degrade. I had a piece of RG-8/X used as a pigtail to a portable repeater antenna that looked perfectly good on the outside, but generated noise such as you describe. Cutting it open revealed the water infiltration. In fact, it only generated noise when flexed in the area where water got in. Further down the coax where the braid still appeared shiny there was no noise when flexed. I replaced the pigtail with RG-142 that solved the problem. The fact that RG-142 is double-shielded is incidental; it's the silver plated shield that prevents IMD generation. Bob NO6B 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] Icom rp4020
At 02:24 PM 10/15/2004 -0500, you wrote: It Worked for Me , if You like I can E-Mail it directly. ---That's really wierd. This particular pdf isn't liked by my Acrobat (4.0) at all. It reports There was a problem reading this document(9). The file contains information not understood by the viewer I've never run into this before and other pdf's work just fine. Maybe I need to upgrade? Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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] Icom rp4020
The file appears to have been scanned into adobe... cut and paste won't work as it is an image. 73's Mike Perryman www.qsl.net/k5jmp -Original Message- From: Don [mailto:[EMAIL PROTECTED] Sent: Friday, October 15, 2004 3:56 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Icom rp4020 Well I'am not smart enough to Just Copy and Paste just the Info You need from this PDF Document and display it here , But I'am sure someone on this group could. Good Luck Don KA9QJG 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] Icom rp4020
At 04:04 PM 10/15/2004 -0400, you wrote: The file appears to have been scanned into adobe... cut and paste won't work as it is an image. ---All we need is the pinout of the 9 pin DIN connector (I was told it was a 9 pin DIN?) and the active states of the COS, etc. Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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] Icom rp4020
When all is said and done, if someone wants to do a writeup on connecting a Icom repeater to a external controller, I'll put it up on repeater-builder. Mike WA6ILQ At 01:07 PM 10/15/04, you wrote: At 04:04 PM 10/15/2004 -0400, you wrote: The file appears to have been scanned into adobe... cut and paste won't work as it is an image. ---All we need is the pinout of the 9 pin DIN connector (I was told it was a 9 pin DIN?) and the active states of the COS, etc. Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We now offer complete Kenwood TKR 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/
[Repeater-Builder] Re: Coaxial Stub Theory
IF you plan to make a duplexer for two meters using 1/4 wave stubs with standard 600Kc split forget it ! Stubs are Great for out of band filtering but are too broad for use at 600 KC splits. I used a 1/4 wave stub to notch out a 929 MHz paging transmitter located on the same building with my 2 meter repeater. I was able to get about 42Db of notch with a single stub. 73 AC0Y --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: Ok, So you can make some kind of filters by placing a T in line with a piece of equipment and cut the Coax for 1/4 wavelength at the desired frequency. But What is the difference between a shorted stub and an open stub? Also does coaxial size determine bandwidth, and if so does anyone have a chart of what cable does what? I am intrested in making a coaxial stub duplexer for 2 meters and 6. My original concept is for 1 1/4 copper tubing for the outter conductor and 1/2 copper rod for the center. __ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp 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] Diamond X500
Hi Gang, Anyone know anything about keeping water out of a Diamond X500 antenna for a repeater use, Or any other suggestions, Short of heaving it off the side of the building. 73 AC0Y 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/
