Re: [Repeater-Builder] Motorola Micor Amp Key Line Help Needed
Mathew, The TLD1693E Power Amplifier is rated at 100 watts continuous duty, for the 150.8 to 162 MHz split. It is designed to provide full output with an RF drive of about 400 mW. The DC power input is 12.8 VDC at 20.5 A. The small pin on the side of the amplifier connects to one of the Keyed A- terminals on the backplane. The power control board is integral with the amplifier. Be aware, this PA will not work on 2m without modification. 73, Eric Lemmon WB6FLY w9mwq wrote: I have aquired an amp for the repeater. It is a Motorola Micor Amp, TLD1693E Amp. Does any one know the power input requirement and what the power output should be on this amp. Also the SWA goes to ground to key the amp, how would I be able to find a circuit inside the exciter that goes to ground, or what would be the easiest way to make a switch for this to key up when the COS is opened. Currently my COS is high. Any ideas. Thanks. Mathew 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: Motorola Micor Amp Key Line Help Needed
It's a MICOR VHF 100-Watt continuous-duty rated PA Deck, for the 150.8 to 162 MHz Range. The input power is about a half watt (actually 0.4 watts) for typically 100 watts out. Your best bet is to get a MICOR manual to see how to set it up. The actual PA circuit board is the same in the MICOR continuous duty stations, intermittent duty stations, and even in the 100-watt mobile radio. Just in case you're going to use it in the 2-Meter ham band, you probably want to convert it to the 136-150 MHz range as a TLD1692 Series amp would be. Otherwise it will eventually start oscillating and burn itself up. But the conversion is a big job - I've done 4 or 5 of them over the years - you almost strip the circuit board and repopulate it with the correct 2M range caps, coils, transformers, variable caps and resistors. The parts from Motorola weren't inexpensive, either. But at the time, it was either rebuild them or do without, so I rebuilt the receiver, exciter and PA deck to be actual 2-Meter range units as Motorola had designed. It has been well worth the work in the great performance they've provided all these years. I wouldn't do it again now that I have found a bunch of actual TLD1692s over the last few years on the internet, and I've bought them when they were offered to keep as spares for my 2M Repeaters. Of course now that I have several spares of everything, nothing ever fails (except the controllers!) Larry K7LJ Original Message: - From: w9mwq [EMAIL PROTECTED] Date: Mon, 31 May 2004 22:19:36 - To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Motorola Micor Amp Key Line Help Needed I have aquired an amp for the repeater. It is a Motorola Micor Amp, TLD1693E Amp. Does any one know the power input requirement and what the power output should be on this amp. Also the SWA goes to ground to key the amp, how would I be able to find a circuit inside the exciter that goes to ground, or what would be the easiest way to make a switch for this to key up when the COS is opened. Currently my COS is high. Any ideas. Thanks. Mathew Yahoo! Groups Links mail2web - Check your email from the web at http://mail2web.com/ . 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 Custom MVP manual wanted
Hi Andrew; I have a original GE UHF MVP manual for sale, It is in GREAT condition! $25.00 Plus shipping. Thanks, Bill N8LXM kc2eus wrote: I'm looking for a source for a GE Custom MVP manual UHF version. Thanks Andrew KC2EUS / GM1YMI 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] GE Custom MVP manual wanted
Bill: I also need a UHF MVP manual. If Andrew doesn't want it, let me know. Kim , K5TU -Original Message- From: Bill [mailto:[EMAIL PROTECTED] Sent: Monday, May 31, 2004 6:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] GE Custom MVP manual wanted Hi Andrew; I have a original GE UHF MVP manual for sale, It is in GREAT condition! $25.00 Plus shipping. Thanks, Bill N8LXM kc2eus wrote: I'm looking for a source for a GE Custom MVP manual UHF version. Thanks Andrew KC2EUS / GM1YMI Yahoo! Groups Links Yahoo! Groups Links -- -- This message has been inspected by DynaComm i:mail 3.0 http://www.futuresoft.com -- 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: Kenwood TK-840 programming cable / Question
$40 plus $13 shipping for one chip (DS275) in a DB-9 connector !!! Man, am I in the wrong business 73, Dick, W1KSZ -Original Message- From: Andrew Pepper [mailto:[EMAIL PROTECTED] Sent: Monday, May 31, 2004 5:51 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Kenwood TK-840 programming cable / Question Here's a cable on ePay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemcategory=56988item=3818674184 rd=1 Also some info here. Possible Schematic of one. http://www.cqham.ru/sch_eng.html Hope this helps. Andrew KC2EUS / GM1YMI www.kc2eus.org - Original Message - From: Leon Ingerick [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 17:36 Subject: [roadrunner] Re: [Repeater-Builder] Kenwood TK-840 Question Thanks for the info on the TK-840.. Does anyone know where I can get a programming cable?? I can get the software just need to know where to get the programming cable Thanks again.. Leon-N2HLT --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.692 / Virus Database: 453 - Release Date: 5/28/2004 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/
Re: [Repeater-Builder] Wacom WP-641, correction on its specs...
If you are not using a pll exciter, it's hard to get the isolation.. Kerry - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 12:07 PM Subject: Re: [Repeater-Builder] Wacom WP-641, correction on its specs... Neal Newman wrote: I am Getting only 83 db Isolation usning My 641's.. funny thing. I cannot get it to work with my MastrII repeater. But it works great with the Spectrum.. The obvious question is, is it tuned properly? The Wacom 641 is very simple to get close with nothing more than a handheld and a signal generator. I prefer to tune the pass under low power, like one watt from the handheld. It makes the pass more precise, as tuning it with a spectrum analyzer usually won't yield as good a loss. I have always been able to hit the 1.5 dB loss mark by using this method. PLEASE spare me the Don't tune the duplexer under power BS These cavities are rated at 350 watts intermittent, and 275 continuous and you won't be able to arc the fingerstock with a few watts of power, especially if you get it close to resonance with a signal generator first. After getting the pass frequency 'correct' you will find that obtaining the stated isolation is easy. One thing that happens is if the cavity is not tuned correctly on the pass frequency, the reject amount will suffer. Why? As the spacing between pass and reject frequencies decrease, so does the ability for the cavity to provide the rejection response. With this cavity, the lowest loss and best return loss appear nearly on top of one another, so match is at its best when the cavity is properly tuned for lowest insertion loss. Here is more on pass and reject response with one cavity from a WP-641 duplexer: http://www.repeater-builder.com/rbtip/wacombpbrnotes.html Another thing that happens commonly with a duplexer and a radio set that was converted from commercial service to amateur, is the actual terminal impedance will not be 50 ohms. A duplexer that has been optimized on a piece of 50 ohm test equipment *may* not perform very well in practice. There are a few things that can be done to help this problem, like using a matching device (Z matcher) on the transmitter. Some prefer to match the duplexer to the transmitter by adjusting cabling lengths. Either method can substantially improve the operation of the duplexer. Sure, it would be nice or best if the radio set presented a perfect 50 ohm match, but many we convert do not. Wacom had written a dissertation on optimizing the duplexer interconnection cabling lengths. That information, as well as duplexer tuning, is available here: http://www.repeater-builder.com/pdf/wp6xxVHFtuninginstructions.pdf Look on page 4 under the section Cable length between transmitter and duplexer Hope this helps... 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/
Re: [Repeater-Builder] Wacom WP-641, correction on its specs...
kerry wrote: If you are not using a pll exciter, it's hard to get the isolation Kerry The type of exciter used has nothing to do with how much isolation the duplexer exhibits. Kevin Custer 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: Wacom WP-641, correction on its specs...
Actually it depends on the Density of the Liquid material... Coy Hilton wrote: It's like a 8 ounce glass, it doesn't matter what liquid you put into it, it still holds 8 ounces. 73 AC0Y --- In Repeater-Builder@yahoogroups.com, kerry [EMAIL PROTECTED] wrote: If you are not using a pll exciter, it's hard to get the isolation.. Kerry - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 12:07 PM Subject: Re: [Repeater-Builder] Wacom WP-641, correction on its specs... Neal Newman wrote: I am Getting only 83 db Isolation usning My 641's.. funny thing. I cannot get it to work with my MastrII repeater. But it works great with the Spectrum.. The obvious question is, is it tuned properly? The Wacom 641 is very simple to get close with nothing more than a handheld and a signal generator. I prefer to tune the pass under low power, like one watt from the handheld. It makes the pass more precise, as tuning it with a spectrum analyzer usually won't yield as good a loss. I have always been able to hit the 1.5 dB loss mark by using this method. PLEASE spare me the Don't tune the duplexer under power BS These cavities are rated at 350 watts intermittent, and 275 continuous and you won't be able to arc the fingerstock with a few watts of power, especially if you get it close to resonance with a signal generator first. After getting the pass frequency 'correct' you will find that obtaining the stated isolation is easy. One thing that happens is if the cavity is not tuned correctly on the pass frequency, the reject amount will suffer. Why? As the spacing between pass and reject frequencies decrease, so does the ability for the cavity to provide the rejection response. With this cavity, the lowest loss and best return loss appear nearly on top of one another, so match is at its best when the cavity is properly tuned for lowest insertion loss. Here is more on pass and reject response with one cavity from a WP-641 duplexer: http://www.repeater-builder.com/rbtip/wacombpbrnotes.html Another thing that happens commonly with a duplexer and a radio set that was converted from commercial service to amateur, is the actual terminal impedance will not be 50 ohms. A duplexer that has been optimized on a piece of 50 ohm test equipment *may* not perform very well in practice. There are a few things that can be done to help this problem, like using a matching device (Z matcher) on the transmitter. Some prefer to match the duplexer to the transmitter by adjusting cabling lengths. Either method can substantially improve the operation of the duplexer. Sure, it would be nice or best if the radio set presented a perfect 50 ohm match, but many we convert do not. Wacom had written a dissertation on optimizing the duplexer interconnection cabling lengths. That information, as well as duplexer tuning, is available here: http://www.repeater- builder.com/pdf/wp6xxVHFtuninginstructions.pdf Look on page 4 under the section Cable length between transmitter and duplexer Hope this helps... Kevin Custer 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] Re: Wacom WP-641, correction on its specs...
Huh?? Original Message: - From: Coy Hilton [EMAIL PROTECTED] Date: Tue, 01 Jun 2004 02:26:08 - To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Wacom WP-641, correction on its specs... The Duplexer will provide a specified amount of isolation. It has nothing to do with what you connect to it. It doesn't matter if it's a Spectrum transmitter of a GE MASTR II 110 watt with a PLL exciter. the amount of isolation remains the same. It's like a 8 ounce glass, it doesn't matter what liquid you put into it, it still holds 8 ounces. 73 AC0Y --- In Repeater-Builder@yahoogroups.com, kerry [EMAIL PROTECTED] wrote: If you are not using a pll exciter, it's hard to get the isolation.. Kerry - Original Message - From: Kevin Custer [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 12:07 PM Subject: Re: [Repeater-Builder] Wacom WP-641, correction on its specs... Neal Newman wrote: I am Getting only 83 db Isolation usning My 641's.. funny thing. I cannot get it to work with my MastrII repeater. But it works great with the Spectrum.. The obvious question is, is it tuned properly? The Wacom 641 is very simple to get close with nothing more than a handheld and a signal generator. I prefer to tune the pass under low power, like one watt from the handheld. It makes the pass more precise, as tuning it with a spectrum analyzer usually won't yield as good a loss. I have always been able to hit the 1.5 dB loss mark by using this method. PLEASE spare me the Don't tune the duplexer under power BS These cavities are rated at 350 watts intermittent, and 275 continuous and you won't be able to arc the fingerstock with a few watts of power, especially if you get it close to resonance with a signal generator first. After getting the pass frequency 'correct' you will find that obtaining the stated isolation is easy. One thing that happens is if the cavity is not tuned correctly on the pass frequency, the reject amount will suffer. Why? As the spacing between pass and reject frequencies decrease, so does the ability for the cavity to provide the rejection response. With this cavity, the lowest loss and best return loss appear nearly on top of one another, so match is at its best when the cavity is properly tuned for lowest insertion loss. Here is more on pass and reject response with one cavity from a WP-641 duplexer: http://www.repeater-builder.com/rbtip/wacombpbrnotes.html Another thing that happens commonly with a duplexer and a radio set that was converted from commercial service to amateur, is the actual terminal impedance will not be 50 ohms. A duplexer that has been optimized on a piece of 50 ohm test equipment *may* not perform very well in practice. There are a few things that can be done to help this problem, like using a matching device (Z matcher) on the transmitter. Some prefer to match the duplexer to the transmitter by adjusting cabling lengths. Either method can substantially improve the operation of the duplexer. Sure, it would be nice or best if the radio set presented a perfect 50 ohm match, but many we convert do not. Wacom had written a dissertation on optimizing the duplexer interconnection cabling lengths. That information, as well as duplexer tuning, is available here: http://www.repeater- builder.com/pdf/wp6xxVHFtuninginstructions.pdf Look on page 4 under the section Cable length between transmitter and duplexer Hope this helps... Kevin Custer Yahoo! Groups Links Yahoo! Groups Links mail2web - Check your email from the web at http://mail2web.com/ . 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] Programming for Motorola Syntor
I am looking for someone that can help with the programming of a Motorola Syntor 8 Channel Radio. Thanks. Mathew 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] Another question on the ICOM FR-4000 Repeater
Most likely,yes! - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 11:59 PM Subject: [Repeater-Builder] Another question on the ICOM FR-4000 Repeater Someone from the list gave me some good info on a possible solution to my ICOM Repeater FR-4000 problem. Does anyone from the list, know if the ICOM IC FR-4000 repeater requires tuning of the receiver's front end before being placed in service and software programming?Do thehelical resonators in the receiver need tobe optimized by tuning ? Thanks angain in advance Joe 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] WTB: Motorola Micor Amp TLD1692
I am looking for a Micor Amp TLD1692 rack mount amp. Email me off list with cost shipped to 46366, condition of amp. Thanks. Mathew 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: zetron 30 manual
need just to activate the repeater function. - Original Message - From: randy kisthardt [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, May 31, 2004 1:39 PM Subject: [Repeater-Builder] Re: zetron 30 manual --- In Repeater-Builder@yahoogroups.com, Stephane Montpetit [EMAIL PROTECTED] wrote: Anybody has the zetron 30 manual? Need it to program it as a repeater controller. Thank's I have one can i help? i dont have a scanner tho so i might can type a few of the more needed commands for you or somthing. i had to pay zetron like 25.00 or so for it but the patch is cool and works great. randy AG4ZQ 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] Programming for Motorola Syntor
Matthew and all, I'm currently working on documentation for a modification to allow use of the VHF Syntor in the 2m ham bands. As soon as I get it finished, I will post it to the Repeater-Builder's website. As far as programming itself, there are a few people out there who can actually burn a PROM for you, but I don't have the equipment (yet). There is even one or two who have a plug-in module that replaces the one-time PROM with an EEPROM. Mark -Original Message- From: w9mwq [mailto:[EMAIL PROTECTED] Sent: Monday, May 31, 2004 10:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Programming for Motorola Syntor I am looking for someone that can help with the programming of a Motorola Syntor 8 Channel Radio. Thanks. Mathew 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] Programming for Motorola Syntor
Mathew - What version of the Syntor do you have? The Syntors came several flavors, and each required a different approach for programming. See the link to Mike Blenderman's page below for more info. http://www.open.org/~blenderm/syntorx/index.html#top_home E-mail me with your model # and I'll see what I can do to help. 73's Andy -- NC Certified Firefighter III / Instructor II / EMT-A FCC Licensed Technician / Amateur Call NC4AB / Echolink Node 5761 http://www.brinkleyelectronics.com 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: Want to add 144.39 to an existing 147.09/147.69 Wacom WP-641
Back to the project...getting a 147.09tx/147.69rx repeater and 144.39 APRS on the same antenna...I received many good answers and links to assist me. HOWEVER...looks like the costs are such that I could consider another route..namely two antennas/transmission lines, one for 144.39 and the other for the 147.09+ repeater. The tower is 200' and we have line and antennas available, so cost wise this is a sensible way to go. My first choice would be to put both antennas one the top, in the same horizontal plane. Actually we have to go to the top to get away from a flock of 2.4 GHz 802.11b service antennas. The physical separation between out antennas will be the issue..the tower has a 40 face, so the simple install would have the two antennas (specs claim 6 dbi) 40 inches apart. Are they any tables someone could point to which would tell me what the db separation this would achieve so I could see what might be required in cans to make this approach work? The radios are Motorola Micors which have pretty good filters in the front ends. Ron N5IN 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] Programming for Motorola Syntor
mark. matt et al... syntor programming available at www.brinkleyelectronics.com talk to andy. mdm ted = Ted Bleiman K9MDM MDM Radio Ltd - 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 web http://www.mdmradio.com - all new check it out!!! See our website for DAYTON RAINOUT SPECIALS __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ 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] Programming for Motorola Syntor
Hi ted, thanks, I sent him an email, am waiting on him to get back with me to see if he is able to program these for me. Appreciate it. Mathew - Original Message - From: Ted Bleiman K9MDM - MDM Radio [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 01, 2004 9:15 AM Subject: RE: [Repeater-Builder] Programming for Motorola Syntor mark. matt et al... syntor programming available at www.brinkleyelectronics.com talk to andy. mdm ted = Ted Bleiman K9MDM MDM Radio Ltd - 1629-B N. 31 st Ave Melrose Park, IL 60160 708.681.0300 fax 708.681.9800 web http://www.mdmradio.com - all new check it out!!! See our website for DAYTON RAINOUT SPECIALS __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ 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] Micor Amp TLD1693 and I'm Confused
I have a Micor TLD1693 amp, designed for the 150 to 162 Mhz range, and am told that the amp will not operate at the 146 Mhz range, told that componets have to be changed. Here is what I don't understand about it, maybe someone can help expain it. Into a Cushman serive monitor, I'm getting 100 Watts out of the amp at both 146.925 and 154.115 Mhz, keyed down the temperature is the same after a 5 min keyup test, allowed to cool down for each test. I see no spikes or spurs at either frequency. Granted this will be used on a repeater and key down times can go much longer, but why would this amp not operate at 2 meters, just cause Motorola says the specs are for 150 to 162. I've seen amps go from 138 to 174 with no problems, just a matter of tweaking. So help me to understand what the difference really is between the TLD1693 and the TLD1692 amps. Thanks. Mathew 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] one works - one doesn't
No secret that Parts Tolerance can have a significant bearing... mix in a little component aging all those +/- 10% values add up!! Sometimes, despite the Design Specs, ya just get lucky. 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] Sharing a receive site
You mite want to give ARR (the preamp folks) a call they have just what you need and the price is right. They are up in Burlington CT. Great people. At our receive site we used a power divider and two pre-amps it works well but we are in a very low RF area with that site. They have a nice reciver multi coupler that would be better. Also a bit cheaper then what we did. Good Luck, 73 Russ, W3CH - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 01, 2004 4:03 PM Subject: [Repeater-Builder] Sharing a receive site Hi, all -- I am on the technical committee of an amateur repeater club. A club in the next county has approached us to ask about sharing one of our 2m receive sites with them. It's a commercial site and we are there at the pleasure of the owner, who is willing to accommodate them and thinks that there are no bad mixes. The other club has asked to share our 2m receive antenna and feedline, and has volunteered to install whatever equipment we specify so that our site's performance is not degraded. While this sounds doable to me, I am more of a digital guy than an RF guy. What should we install in order to do this the right way without degrading our site's performance? Our system transmits on 146.88 MHz and receives on 146.28. We use a Motorola receiver (I think it's a Micor). The other club's system transmits on 147.345 and receives on 147.945. Both have links in the 440 band. Neither system will transmit on 2m from this site. Any advice or recommendations as to architecture, equipment that works (or doesn't work!), or points to be included in a Memorandum of Understanding, would be appreciated. Regards, Bob Koblish [EMAIL PROTECTED] 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] Sharing a receive site
--- [EMAIL PROTECTED] wrote: Hi, all -- I am on the technical committee of an amateur repeater club. A club in the next county has approached us to ask about sharing one of our 2m receive sites with them. It's a commercial site and we are there at the pleasure of the owner, who is willing to accommodate them and thinks that there are no bad mixes. The other club has asked to share our 2m receive antenna and feedline, and has volunteered to install whatever equipment we specify so that our site's performance is not degraded. While this sounds doable to me, I am more of a digital guy than an RF guy. What should we install in order to do this the right way without degrading our site's performance? Our system transmits on 146.88 MHz and receives on 146.28. We use a Motorola receiver (I think it's a Micor). The other club's system transmits on 147.345 and receives on 147.945. Both have links in the 440 band. Neither system will transmit on 2m from this site. Any advice or recommendations as to architecture, equipment that works (or doesn't work!), or points to be included in a Memorandum of Understanding, would be appreciated. Regards, Bob Koblish [EMAIL PROTECTED] It all depends on what kind of RF in involved at that site, but one way to do it (and there are many) would be to take your feedline and go through a DCI filter to attenuate the out of band stuff that might be there. Then run into a good pre-amp (ARR, Angle Linear, etc) and split the output to the two RX. You could use a commercial unit, or construct one yourself for a couple of bucks, or just put a tee on the preamp and run a cable to each RX (this may or may not work well, depending on impedences and cable lengths involved, but its easy to try). You'll want to have a fairly low noise figure preamp, and fairly decent gain (15-20 dB) to get best performance out of each RX. Link to DCI: http://www.dci.ca/?Section=Amateur Joe __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ 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] Sharing a receive site
The shared receive antenna is the easy part of the proposal and as others indicated there are a couple of ways to do this. Even a cheep mobile duplexer would likely work for feeding the two VHF receivers, as they are a reject only duplexer and as your both receiving there is really nothing to reject. You get a three port device that are all 50 ohms, if you can handle the added 1 to 1.2 dB insertion loss. If you can't handle any added loss then you may want to look into a receiver multi-coupler or build one, but you better have some sort of decent BP window filter (1.67 MHz split on your two receiver frequencies) between the antenna and any pre-amps you might consider adding to the receive system. If your on a commercial site there are likely VHF users on the site, so you'll need so good isolation so they don't clobber your pre-amp when they are transmitting. You may also have a problem with the two 440 Links that you both run, unless both links are TX only. If you have a requirement to combine these two UHF links you'll have to give us more info on freq, power, etc. Rob K7EI -Original Message- From: Joe Montierth [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 01, 2004 2:17 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Sharing a receive site --- [EMAIL PROTECTED] wrote: Hi, all -- I am on the technical committee of an amateur repeater club. A club in the next county has approached us to ask about sharing one of our 2m receive sites with them. It's a commercial site and we are there at the pleasure of the owner, who is willing to accommodate them and thinks that there are no bad mixes. The other club has asked to share our 2m receive antenna and feedline, and has volunteered to install whatever equipment we specify so that our site's performance is not degraded. While this sounds doable to me, I am more of a digital guy than an RF guy. What should we install in order to do this the right way without degrading our site's performance? Our system transmits on 146.88 MHz and receives on 146.28. We use a Motorola receiver (I think it's a Micor). The other club's system transmits on 147.345 and receives on 147.945. Both have links in the 440 band. Neither system will transmit on 2m from this site. Any advice or recommendations as to architecture, equipment that works (or doesn't work!), or points to be included in a Memorandum of Understanding, would be appreciated. Regards, Bob Koblish [EMAIL PROTECTED] It all depends on what kind of RF in involved at that site, but one way to do it (and there are many) would be to take your feedline and go through a DCI filter to attenuate the out of band stuff that might be there. Then run into a good pre-amp (ARR, Angle Linear, etc) and split the output to the two RX. You could use a commercial unit, or construct one yourself for a couple of bucks, or just put a tee on the preamp and run a cable to each RX (this may or may not work well, depending on impedences and cable lengths involved, but its easy to try). You'll want to have a fairly low noise figure preamp, and fairly decent gain (15-20 dB) to get best performance out of each RX. Link to DCI: http://www.dci.ca/?Section=Amateur Joe __ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ 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: Want to add 144.39 to an existing 147.09/147.69 Wacom WP-641
Is there any way that you can get one of the antennas into a different horizontal plane? i.e. mount the new antenna a few feet lower? Your vertically polarized antenna does not put out much power in the straight down direction, so even 15-20 feet might buy you enough isolation. This may help: http://www.repeater-builder.com/antenna/separation.html Mike At 03:51 PM 6/1/04 +, you wrote: Answering my own questions...on the repeater-builder.com site there is this great links: http://www.decibelproducts.com/collateral/aboutrfcommunications.pdf On Page 4-26 there are charts showing the db separation I was looking for. At a horizontal spacing of just 40 inches it looks like the 'isolation' will only be 15 db at most. Also I would guess there will be significant issues regarding the effect upon the radiation pattern. If I could notice it is another issue. Still thinking about the affordable solution. Ron N5IN --- In Repeater-Builder@yahoogroups.com, Ron Stordahl N5IN [EMAIL PROTECTED] wrote: Back to the project...getting a 147.09tx/147.69rx repeater and 144.39 APRS on the same antenna...I received many good answers and links to assist me. HOWEVER...looks like the costs are such that I could consider another route..namely two antennas/transmission lines, one for 144.39 and the other for the 147.09+ repeater. The tower is 200' and we have line and antennas available, so cost wise this is a sensible way to go. My first choice would be to put both antennas one the top, in the same horizontal plane. Actually we have to go to the top to get away from a flock of 2.4 GHz 802.11b service antennas. The physical separation between out antennas will be the issue..the tower has a 40 face, so the simple install would have the two antennas (specs claim 6 dbi) 40 inches apart. Are they any tables someone could point to which would tell me what the db separation this would achieve so I could see what might be required in cans to make this approach work? The radios are Motorola Micors which have pretty good filters in the front ends. Ron N5IN 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] Sharing a receive site
At 08:03 PM 6/1/04 +, you wrote: Hi, all -- I am on the technical committee of an amateur repeater club. A club in the next county has approached us to ask about sharing one of our 2m receive sites with them. It's a commercial site and we are there at the pleasure of the owner, who is willing to accommodate them and thinks that there are no bad mixes. The other club has asked to share our 2m receive antenna and feedline, and has volunteered to install whatever equipment we specify so that our site's performance is not degraded. While this sounds doable to me, I am more of a digital guy than an RF guy. What should we install in order to do this the right way without degrading our site's performance? Our system transmits on 146.88 MHz and receives on 146.28. We use a Motorola receiver (I think it's a Micor). The other club's system transmits on 147.345 and receives on 147.945. Both have links in the 440 band. Neither system will transmit on 2m from this site. Any advice or recommendations as to architecture, equipment that works (or doesn't work!), or points to be included in a Memorandum of Understanding, would be appreciated. Regards, Bob Koblish [EMAIL PROTECTED] Quite doable First of all the 2m TXs does not enter into the equation since they are not at your site. You will need a 2m receiver multicoupler. There are splitters and there are multicouplers. Splitters have no gain and are designed for situations where you have enough signal but need to go two (or more) places. Picture your cable TV signal going to two (or more) TV sets. Each TV set gets a little less than half the signal, but generally that isn't a problem because the cable TV signal has a lot of headroom. A multicoupler is a device containing basically a low-noise preamp feeding a splitter. The preamp makes up for the splitter loss. A bandpass filter (like a DCI) can be placed between the preamp and the splitter. The 2m feedline that now goes to the 146.28 RX will feed the multicoupler input and one output will go to the 146.28 RX and the other to the 147.945 RX. If the budget allows for it I'd definitely get an Anglelinear multicoupler. Yes, I'm partial to their stuff. I've used it and it's better than anything else on the market. Anglelinear http://www.anglelinear.com is owned by a ham (Chip Angle, N6CA, 310-539-5395 or [EMAIL PROTECTED]) who is very much involved with the weak-signal enthusiast community. His web site is EXCELLENT and has a large amount of easy-to-read info. Example: http://www.anglelinear.com/couplers/couplers.html With the above said, as a proof-of-concept test you can just parallel the RX inputs with a BNC T-connector and a couple of patch cables but expect a noticeable loss of performance on weak signals. Running it that way for a few days or even a week will tell you if you have any deal-killers before you spend any money (example: their RX's local oscillator intermodding with some TXs at the site and landing on your input - don't laugh - I've seen it happen - and the TX was a 90.something mHz FM broadcast TX). And before they install any equipment I'd run the 440 TX freqs through the an intermod calculator and look for hits. Just do an inventory of the TX freqs and local oscillator freqs and and look at http://www.audiotechnica.com/using/wireless/compat/index.html which is an on-line intermod calculator that handles 30 frequencies. Yes, it's oriented to wireless mics but - hey - it's free. Or you can go to http://www.emrcorp.com/imcalcinfo.html or to http://www.kesslersystemsinc.com/ampim.htm. There is one more at http://www.tcstx.com/software/Intermodulation.cfm but it's in beta (has been for a year) and the help file is not that great. But it does do 5th order checks... Or there is ham-written shareware that you can get from http://www.repeater-builder.com/downloads/intermod.zip. All in all, with the mix and intermod situation handled, your site sharing should work just fine. Oh - and make sure that the 440 link TXs have isolators or circulators on them. Mike WA6ILQ 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: Wacom WP-641, correction on its specs...
--- In Repeater-Builder@yahoogroups.com, Neal Newman [EMAIL PROTECTED] wrote: Actually it depends on the Density of the Liquid material... Coy Hilton wrote: It's like a 8 ounce glass, it doesn't matter what liquid you put into it, it still holds 8 ounces. 73 AC0Y _ It has nothing to do with the density of the liquid, the ounces in an eight ounce glass are unit of volume measurements not weight. An eight ounce glass holds eight fluid ounces, not eight avoirdupois ounces. fluid ounce - a United States unit of capacity or volume equal to 1.804 cubic inches avoirdupois ounce defined by the avoirdupois system of mass. The avoirdupois ounce is approximately 28.3 grams. 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/
