[Repeater-Builder] Arrowantennas
Has anyone used any of the arrow antennas j-poles or yagis for that matter??? Results? 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: UHF GM300 (lnk radio)
could you please remove my name from this lists. I have tried to get it done by replying to the address at the bottom but it dont work dcdietz2chartermi.net - Original Message - From: "Kevin Custer" <[EMAIL PROTECTED]> To: Sent: Saturday, September 04, 2004 4:00 PM Subject: Re: [Repeater-Builder] Re: UHF GM300 (lnk radio) > > N9WYS wrote: > > >I also, have sent an article to Mike for the Repeater-Builders web site, only to wait for it to appear. (I'm still waiting...) I'm almost ready to send it to someone else. > > > > First off, let me remind you and everyone else that my site is FREE for > the looking. I pay to host the information on my site(s) with help only > from those who choose to give right after Christmas when my hosting fees > are due. > Secondly, I don't pay my webmasters, they are volunteers and have other > jobs/lives outside of Repeater Builder. > Third, I'm in the midst of a complete overhaul of the site; in which > Mike is doing most of this work in his spare time, yet he still offers > to take information in about any form any turn it into a nice > representation. Repeater Builder has an amount of information > approaching 1 gig > > Now, you have offered up some information and are pissed because it > isn't a priority of ours to have it published in a few weeks. Realize > that it may take several weeks or months for it to appear depending on > the type of information that gets forwarded to us (like plain text). If > you want to help expedite the publishing, make a webpage that follows > the format of Repeater Builder, check it for spelling and accuracy and > send it to us. If this time frame isn't acceptable, go ahead and send > it to someone else. My site may the the largest/busiest repeater > building site, but it isn't the only one out there. > > Kevin Custer > List and Site Owner, Repeater Builder > > > > > > > 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] tone panel noise
You can't really fudge the wire used to connect a tone panel to a repeater. I've traced a number of noise and glitch problems directly to standard and junk lead wire used for tone panel connections. Throw the junk wire out... go to the www.radiowrench.com/sonic web page. Download my msr 2000 to external controller squelch gate mod. Within that text is the Motorola Part number for their multi conductor wire often found used for remotes and desk mics. This is the black covered remote/mic lead wire, which has the standard motorla color codes used for their remote and mic connections. About $1 /ft and it's the best investment in wire you'll make for this type of application. The contact info for motorola parts is also included. The key is the brown well shield cross wrapped wire, which can be used for your low level audio signal (ie descriminator audio). You can easily see the difference with your service monitor. You'd be surprised how much differenc the type and quality of lead wire can make. cheers skipp > "motarolla_doctor" <[EMAIL PROTECTED]> wrote: > "Jim B." <[EMAIL PROTECTED]> wrote: > > Sounds like some noise is getting in. Are all the leads shielded? > >How about the shields on the rx? I've put together a couple of > TP-3200 rptrs, and none had that problem. > > -- > > I have seen the TP3200 pannels generate some noise. Be sure to ask > Communications Specialists for the latest E-Prom, they up dated the > firmware and they work much better. Remember to use isolation > resistors at the connection points on the MSR2000 TX tone and TX audio > lines. The resistors help get rid of some conducted uP noise. 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: MSR2000 PA out - again...
"Jim B." <[EMAIL PROTECTED]> wrote: > Sounds like some noise is getting in. Are all the leads shielded? >How about the shields on the rx? I've put together a couple of TP-3200 rptrs, and none had that problem. > -- I have seen the TP3200 pannels generate some noise. Be sure to ask Communications Specialists for the latest E-Prom, they up dated the firmware and they work much better. Remember to use isolation resistors at the connection points on the MSR2000 TX tone and TX audio lines. The resistors help get rid of some conducted uP noise. 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: Vertex VXR-7000U UHF REPEATER Will it work in the Ham Band
--- In Repeater-Builder@yahoogroups.com, "aj4ef" <[EMAIL PROTECTED]> wrote: > Vertex VXR-7000U (D) UHF REPEATER Can it be tuned and Programed in > the Ham Band? > The 450-470 Mhz Model. > I need it to TX 442.100 RX 447.100 > > I need to get one soon and I appreciate the help. Here's a tidbit I did on that repeater http://www.jammerdave.com/vertex.html Dave NA6DF 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 Phoenix SX mobiles for sale
- I have two GE Phoenix SX mobiles for sale. One is UHF and programmed into the ham bands and the Other is a brand new VHF model SX also in the ham band. I do not remember the frequencies exactly I can tell you they are programmed in the Ham band area. Both work well Transmit and receive and look good. UHF 75.00 plus shipping VHF 100.00 Plus shipping These radio are really super good for Remote Base use and that is what I used the UHF one for. I can send a digital picture if you need. Let me know - Johnny p.s. I am on digest mode so please email me direct at [EMAIL PROTECTED] === http://hamcams.servepics.com my main webpage http://groups.yahoo.com/group/godcatchers/ Christian Writing Group http://webpages.charter.net/kd5lwu/ The Easter Christian Page Amateur Radio Operator KD5LWU Cortez, Colorado Rev. Johnny Lee Shepherd M.S, M.A., D.D. nCTM --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.752 / Virus Database: 503 - Release Date: 9/3/04 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: MSR2000 PA out - again...
Sounds like some noise is getting in. Are all the leads shielded? How about the shields on the rx? I've put together a couple of TP-3200 rptrs, and none had that problem. -- Jim Barbour WD8CHL N9WYS wrote: > Good question, but it added an extra .12 desense when we put it in... It's > a TP-3200. > > -Original Message- > From: Jim B. [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 07, 2004 1:48 PM > To: Repeater-Builder@yahoogroups.com > Subject: Re: [Repeater-Builder] Re: MSR2000 PA out - again... > > N9WYS wrote: > >>Hi, all... >> >>OK - I was hoping that 80W would be enough of a drop. Wasn't aware until >>these responses (yours and others) that the MSR PA was not rated for >>Continuous Duty. >> >>I'd have to check the model suffix - I don't remember right off hand. >> >>No - no circulator at this time. Seems SWR was low last we checked it, but > > I > >>can't remember the specific reading - I think it was around 1.3:1, though. >> >>We followed the tuning procedure in the manual. We also used the Motorola >>test panel, so it was literally "by the book"... >> >>Last time we measured it (when we put the PA in the last time) RX >>sensitivity was about .5 µv straight into the receiver, .62 after adding > > the > >>tone panel, and almost 1.0 after adding the duplexers. >> >> > > > Why would the rx sensitivity change beacuse of the tone panel? That > should have no effect at all... > -- > Jim Barbour > WD8CHL > 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: MSR2000 PA out - again...
Good question, but it added an extra .12 desense when we put it in... It's a TP-3200. -Original Message- From: Jim B. [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 07, 2004 1:48 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: MSR2000 PA out - again... N9WYS wrote: > Hi, all... > > OK - I was hoping that 80W would be enough of a drop. Wasn't aware until > these responses (yours and others) that the MSR PA was not rated for > Continuous Duty. > > I'd have to check the model suffix - I don't remember right off hand. > > No - no circulator at this time. Seems SWR was low last we checked it, but I > can't remember the specific reading - I think it was around 1.3:1, though. > > We followed the tuning procedure in the manual. We also used the Motorola > test panel, so it was literally "by the book"... > > Last time we measured it (when we put the PA in the last time) RX > sensitivity was about .5 µv straight into the receiver, .62 after adding the > tone panel, and almost 1.0 after adding the duplexers. > > Why would the rx sensitivity change beacuse of the tone panel? That should have no effect at all... -- Jim Barbour WD8CHL 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: 2 UHF receivers, one antenna
At 9/6/2004 09:38 AM, you wrote: >You could build a Wilkinson 2 port splitter. Click here. >http://bellsouthpwp.net/h/w/hwingate/wilkinson.gif > >Henry This takes care of the 25 to 50 ohm impedance mismatch at the junction of the T, but does nothing to isolate the 2 receivers so you may still see over 10 dB of loss. See my previous posting on the subject. 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] 2 UHF receivers, one antenna
At 9/6/2004 07:43 AM, you wrote: >--- Kevin Berlen <[EMAIL PROTECTED]> wrote: > > > Over the weekend, I added a second UHF control > > receiver at one of the sites > > I take care of. The control RX antenna is up about > > 150ft. Previous to > > adding the new RX, I could easily access the first > > RX about 25 miles out. > > Since adding the second RX, I can only access either > > one about 12-15 miles > > out. I simply put a "tee" connector on the > > polyphaser and connected both > > lines to it. Not the best engineering practice, but > > I have gotten away with > > it before. Does anyone have an idea about how to > > properly match two > > receivers to one antenna? The receivers are located > > in different racks in > > different parts of the building. I know Motorola and > > GE had passive devices > > to do this job. Is there a way to build something > > "homebrew" to do this > > job? TIA, and 73, > > > > Kevin, K9HX > > > >You will usually get a 3 dB loss (or more) by using a >tee or a normal splitter. In reality, the performance of a simple T connector used as a receive splitter will vary greatly depending on the reactance of the front-ends. In particular, if a receiver with a highly selective front-end is connected to a T, it can look like a short at the other receiver's frequency at the T depending on the length of coax connecting the T to the first receiver. In that case the T can have over 20 dB of loss. Of course you could get lucky & have an open reflected back to the T, in which case the T will appear lossless in the other branch. The safest approach is to use a properly isolated splitter. Fortunately, the 75 ohm CATV splitters mentioned in previous replies are isolated. Due to their short electrical length, they are quite usable even at 440 MHz. You just need adapters on all the inputs to go from type "F" to whatever 50 ohm connector you prefer. 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] Re: MSR2000 PA out - again...
N9WYS wrote: > Hi, all... > > OK - I was hoping that 80W would be enough of a drop. Wasn't aware until > these responses (yours and others) that the MSR PA was not rated for > Continuous Duty. > > I'd have to check the model suffix - I don't remember right off hand. > > No - no circulator at this time. Seems SWR was low last we checked it, but I > can't remember the specific reading - I think it was around 1.3:1, though. > > We followed the tuning procedure in the manual. We also used the Motorola > test panel, so it was literally "by the book"... > > Last time we measured it (when we put the PA in the last time) RX > sensitivity was about .5 µv straight into the receiver, .62 after adding the > tone panel, and almost 1.0 after adding the duplexers. > > Why would the rx sensitivity change beacuse of the tone panel? That should have no effect at all... -- Jim Barbour WD8CHL 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] MSR2000 PA out - again...
Hmmm... Interesting. I'd have thought that since we sent the PA out for repair to the MSS, they'd have checked the whole thing for proper operation, on our freq, before sending it back, but I'll check that out. Thanks! Mark - N9WYS -Original Message- From: W9DHI [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 07, 2004 9:43 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] MSR2000 PA out - again... Have you done any troubleshooting yourself to find out what is failing. Did you go thru the troubleshooting routine in the manual. I've found that MSR amps are very good and only fail very rarely. I've seen the Choke feeding the power to the mid level amps have a bad connection...you'll read the voltage on the collectors in idle, but when you go to TX the voltage will go away. I've seen this on a number of amps of the 2000 series. I've also seen people repair these by replacing the transistors in the mid level amp, and of course it works for a while because they disturbed the choke and got a decent connection again. But the only real way to repair it is to remove the board and remove the choke and clean the leads and reinstall it and make sure it is well soldered. Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Member: ARRL, RSGB, RCA, WERA and ORC -Original Message- From: N9WYS [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 07, 2004 9:01 AM To: Repeater-Builder@yahoogroups.com; [EMAIL PROTECTED] Subject: [Repeater-Builder] MSR2000 PA out - again... I have an MSR2000 on 444.550 for the local ham club / county EMA. The PA (a 110W model) is out again. We just had this repaired by the local Motorola shop, with whom we've had very good results from in the past. We're running the PA at about 80W, so I'm thinking we didn't "burn it up", but I can't help but wonder if there is anything inherently wrong with the MSR2000 PA for UHF. This is the third time the PA has failed in this particular machine in about a 2-year time frame. (This was a repeater originally tuned for 460 MHZ, and brought down to the ham band.) This particular machine has been a pain in the @$% - RX sensitivity isn't what it should be, PA keeps going out, etc. Seems like we're up at the site every couple of months do make some sort of repair on it. I'm wondering if we should just cut our losses and get another machine, or should I keep plugging away at this repeater? If we do decide to chuck it, how much can I expect to spend to get a comparable replacement - we use this machine during severe weather season for forwarding reports to the NWS, and it's open other times. We want to add remote RX sites (you've probably seen my inquiries about those in the past) but I don't want to start adding remote RX sites until I get the main repeater working reliably. I'm open to suggestions... Thanks, Mark - N9WYS 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: MSR2000 PA out - again...
Hi, all... OK - I was hoping that 80W would be enough of a drop. Wasn't aware until these responses (yours and others) that the MSR PA was not rated for Continuous Duty. I'd have to check the model suffix - I don't remember right off hand. No - no circulator at this time. Seems SWR was low last we checked it, but I can't remember the specific reading - I think it was around 1.3:1, though. We followed the tuning procedure in the manual. We also used the Motorola test panel, so it was literally "by the book"... Last time we measured it (when we put the PA in the last time) RX sensitivity was about .5 µv straight into the receiver, .62 after adding the tone panel, and almost 1.0 after adding the duplexers. >>All things considered, a working MSR is a good unit. That's what I hear - I just wish I could get ours working, and keep it there. :( Mark - N9WYS -Original Message- From: skipp025 [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 07, 2004 10:46 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: MSR2000 PA out - again... > "N9WYS" <[EMAIL PROTECTED]> wrote: > I have an MSR2000 on 444.550 for the > local ham club / county EMA. The PA (a > 110W model) is out again. We just had > this repaired by the local Motorola > shop, with whom we've had very good > results from in the past. We're running > the PA at about 80W, Not good, 60 watts max for typical repeater operation is about as far as I'd push it. You probably would not have noticed the repeater doing 40 to 60 watts vs 80. > so I'm thinking we didn't "burn it up", > but I can't help but wonder if there > is anything inherently wrong with the > MSR2000 PA for UHF. There is, do you have an A or B version (model number suffix at the end)? > This is the third time the PA has failed > in this particular machine in about a > 2-year time frame. You've got more than a PA problem. Possible high reflected power or lock to talk users. Do you have a circulator following the transmitter? > (This was a repeater originally tuned > for 460 MHZ, and brought down to the ham > band.) And how was that done..? > This particular machine has been a pain in > the @$% - RX sensitivity isn't what it should > be, What is it..? You might have some lightning damage in the receiver front end. One of the Canadian guys mentioned this problem a month or two back. > PA keeps going out, etc. Seems like we're up > at the site every couple of months do > make some sort of repair on it. > I'm wondering if we should just cut our > losses and get another machine, or > should I keep plugging away at this repeater? > If we do decide to chuck it, how much can I > expect to spend to get a comparable replacement > - we use this machine during severe weather > season for forwarding reports to the NWS, and > it's open other times. We want to add remote > RX sites (you've probably seen my inquiries > about those in the past) but I don't want to > start adding remote RX sites until I get the > main repeater working reliably. > I'm open to suggestions... > Thanks, > Mark - N9WYS I can't tell you what is best for your needs, but the PA issue is probably bigger than just that one part (the power amplifier). A circulator and a fan would be a godsend if you must run the 80 power level in the stock PA. You can repair it again, buy an $1100.00 drop in replacement from TPL or sub something else in. I've done all three, now I'm making my own predriver units for larger trailing PA's. All things considered, a working MSR is a good unit. cheers skipp skipp025 at yahoo.com www.radiowrench.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: SEA 222 ACSB Repeater P.A. re-use?
How timely, One of the Uniden 220 amplifiers is currently at ebay auction if you want a see one up close. Milcom ARX2125 222MHz 125W PEP Amplifier Item number: 5719255886 This is the very frequency selective unit I mentioned, power drops quickly above 222 MHz. You will need the skills to move this unit up to Amateur Service. cheers skipp www.radiowrench.com/sonic 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] Need Motorola Programing Software
Need Motorola Programing Software for Motorola CDM750 Radio Motorola Software Number HVN9025D. If you have it please me know. Thanks for the Help. 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: Astron Power Supply Crowbars
Most of the crowbar problems I've sourced once past the Astron regulator board were traced to weak filter caps of aged units. The crowbar circuit works well. skipp > "Daron J. Wilson" <[EMAIL PROTECTED]> wrote: > > Let's not lose sight of the fact that the motor circuits that are > > generating the spikes should be examined for ways to reduce or > eliminate > > same. Moreover, tinkering with the power supply crowbar circuits is > > really treating the symptom rather than the problem. > > I have to disagree. Both of my rack mount 50 amp supplies have done > this, on remote sites or in the garage with NO problem on the input > side. If you try to draw more than 10-12 amps when you turn them on, it > immediately crowbars. The only way to get it to run is to turn it off, > drain the caps, remove the load and turn it back on. Then you can > attach the load *spark* and it works fine. That is the design flaw that > I feel needs to be corrected. > > 73 N7HQR Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Kendecom/Advance Communication Systems
Kevin Custer wrote: > Joel Mele wrote: > >> Hello to the group: >> >> The local ham club might be getting some Homeland Security funds from >> the County. >> >> The group is considering equipment from Kendecom/Advanced >> Communication Systems. >> >> I do not have any knowledge of, or experience with this >> manufacturer.I would appreciate any comments or info the group >> might have concerning this equipment. > > > > I have owned a few Kendecom repeaters in the past that were bought by > the County because it wasn't politically correct for me to build and > sell (or give) them to the County. > > Out of about five that were bought, only one is still in service. They > are deaf and spurious by nature. Tuning seems to fade over a short > period of time like the Spectrum machines. I had to add receive preamps > to them to be even close to a Micor or Mastr II. > > My advice is to keep looking > Kevin Custer > ...and for what you spend on the Kendecomm, you can buy a Kenwood commercial grade repeater, or a whole bunch of Micors or MastrII's, or Mitrek's, or what have you... -- Jim Barbour WD8CHL 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: MSR2000 PA out - again...
> "N9WYS" <[EMAIL PROTECTED]> wrote: > I have an MSR2000 on 444.550 for the > local ham club / county EMA. The PA (a > 110W model) is out again. We just had > this repaired by the local Motorola > shop, with whom we've had very good > results from in the past. We're running > the PA at about 80W, Not good, 60 watts max for typical repeater operation is about as far as I'd push it. You probably would not have noticed the repeater doing 40 to 60 watts vs 80. > so I'm thinking we didn't "burn it up", > but I can't help but wonder if there > is anything inherently wrong with the > MSR2000 PA for UHF. There is, do you have an A or B version (model number suffix at the end)? > This is the third time the PA has failed > in this particular machine in about a > 2-year time frame. You've got more than a PA problem. Possible high reflected power or lock to talk users. Do you have a circulator following the transmitter? > (This was a repeater originally tuned > for 460 MHZ, and brought down to the ham > band.) And how was that done..? > This particular machine has been a pain in > the @$% - RX sensitivity isn't what it should > be, What is it..? You might have some lightning damage in the receiver front end. One of the Canadian guys mentioned this problem a month or two back. > PA keeps going out, etc. Seems like we're up > at the site every couple of months do > make some sort of repair on it. > I'm wondering if we should just cut our > losses and get another machine, or > should I keep plugging away at this repeater? > If we do decide to chuck it, how much can I > expect to spend to get a comparable replacement > - we use this machine during severe weather > season for forwarding reports to the NWS, and > it's open other times. We want to add remote > RX sites (you've probably seen my inquiries > about those in the past) but I don't want to > start adding remote RX sites until I get the > main repeater working reliably. > I'm open to suggestions... > Thanks, > Mark - N9WYS I can't tell you what is best for your needs, but the PA issue is probably bigger than just that one part (the power amplifier). A circulator and a fan would be a godsend if you must run the 80 power level in the stock PA. You can repair it again, buy an $1100.00 drop in replacement from TPL or sub something else in. I've done all three, now I'm making my own predriver units for larger trailing PA's. All things considered, a working MSR is a good unit. cheers skipp skipp025 at yahoo.com www.radiowrench.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] MSR2000 PA out - again...
Have you done any troubleshooting yourself to find out what is failing. Did you go thru the troubleshooting routine in the manual. I've found that MSR amps are very good and only fail very rarely. I've seen the Choke feeding the power to the mid level amps have a bad connection...you'll read the voltage on the collectors in idle, but when you go to TX the voltage will go away. I've seen this on a number of amps of the 2000 series. I've also seen people repair these by replacing the transistors in the mid level amp, and of course it works for a while because they disturbed the choke and got a decent connection again. But the only real way to repair it is to remove the board and remove the choke and clean the leads and reinstall it and make sure it is well soldered. Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Member: ARRL, RSGB, RCA, WERA and ORC -Original Message- From: N9WYS [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 07, 2004 9:01 AM To: Repeater-Builder@yahoogroups.com; [EMAIL PROTECTED] Subject: [Repeater-Builder] MSR2000 PA out - again... I have an MSR2000 on 444.550 for the local ham club / county EMA. The PA (a 110W model) is out again. We just had this repaired by the local Motorola shop, with whom we've had very good results from in the past. We're running the PA at about 80W, so I'm thinking we didn't "burn it up", but I can't help but wonder if there is anything inherently wrong with the MSR2000 PA for UHF. This is the third time the PA has failed in this particular machine in about a 2-year time frame. (This was a repeater originally tuned for 460 MHZ, and brought down to the ham band.) This particular machine has been a pain in the @$% - RX sensitivity isn't what it should be, PA keeps going out, etc. Seems like we're up at the site every couple of months do make some sort of repair on it. I'm wondering if we should just cut our losses and get another machine, or should I keep plugging away at this repeater? If we do decide to chuck it, how much can I expect to spend to get a comparable replacement - we use this machine during severe weather season for forwarding reports to the NWS, and it's open other times. We want to add remote RX sites (you've probably seen my inquiries about those in the past) but I don't want to start adding remote RX sites until I get the main repeater working reliably. I'm open to suggestions... Thanks, Mark - N9WYS 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] MSR2000 PA out - again...
I have an MSR2000 on 444.550 for the local ham club / county EMA. The PA (a 110W model) is out again. We just had this repaired by the local Motorola shop, with whom we've had very good results from in the past. We're running the PA at about 80W, so I'm thinking we didn't "burn it up", but I can't help but wonder if there is anything inherently wrong with the MSR2000 PA for UHF. This is the third time the PA has failed in this particular machine in about a 2-year time frame. (This was a repeater originally tuned for 460 MHZ, and brought down to the ham band.) This particular machine has been a pain in the @$% - RX sensitivity isn't what it should be, PA keeps going out, etc. Seems like we're up at the site every couple of months do make some sort of repair on it. I'm wondering if we should just cut our losses and get another machine, or should I keep plugging away at this repeater? If we do decide to chuck it, how much can I expect to spend to get a comparable replacement - we use this machine during severe weather season for forwarding reports to the NWS, and it's open other times. We want to add remote RX sites (you've probably seen my inquiries about those in the past) but I don't want to start adding remote RX sites until I get the main repeater working reliably. I'm open to suggestions... Thanks, Mark - N9WYS 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] MastrII base/rptr CG card problems
I cannot get the CG card to work in a base/rptr MastrII. I've tried 2 dip switch and 1 versatone CG card and Pin 5 on J908 does not swing above ~.24mV on correct tone inject (supposed to go to +4v when correct tone is active). I do NOT have H68-69 jumpered or H41-42. On the 10v card, I have H1-2 and H1-3 jumpered. Also using the remote audio card but that shouldn't be a problem. I think this is a jumper problem. Any help will be appreciated. John/N4SJW 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] Build Micor Channel element?
Yes, I have to agree. I have been doing business since with ICM since the late sixties - never had any problems. One time, ICM didn't have the circuit diagram for a particular GE Mastr-Pro transmitter I needed a crystal for so, I fotocopied my manual diagram and parts list and sent it to them. Neil McKie - WA6KLA robert c ehrhorn wrote: > > I have had ICM do all of my crystals with no problem at all. 6-8 > pairs for races, 3 for the local club and 2 pair for myself. > but those were all Motorola elements and not GE. but to be on > frequency from day 1 to the end .. PRICELESS > > bob > > On Wed, 01 Sep 2004 18:11:05 -0700 Bob Dengler > <[EMAIL PROTECTED]> writes: > > At 9/1/2004 05:57 PM, you wrote: > > > > >from several vendors for around $3 each. Yeah, I wince every time > > I > > >have to spend $100 to set up a new repeater, but I know it is going > > to > > >be on-frequency, all the time! > > > > > >73, Eric Lemmon WB6FLY > > > > I only had ICM compensate a Mastr II ICOM for me once. Drifted like > > > > crazy. Now I install them myself with 50 °C PTC thermistors on the > > > > xtals. Stability is better than 1 PPM. > > > > Bob NO6B > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > Get your name as your email address. > Includes spam protection, 1GB storage, no ads and more > Only $1.99/ month - visit http://www.mysite.com/name today! > > > 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] Build Micor Channel element?
I have had ICM do all of my crystals with no problem at all. 6-8 pairs for races, 3 for the local club and 2 pair for myself. but those were all Motorola elements and not GE. but to be on frequency from day 1 to the end .. PRICELESS bob On Wed, 01 Sep 2004 18:11:05 -0700 Bob Dengler <[EMAIL PROTECTED]> writes: > At 9/1/2004 05:57 PM, you wrote: > > >from several vendors for around $3 each. Yeah, I wince every time > I > >have to spend $100 to set up a new repeater, but I know it is going > to > >be on-frequency, all the time! > > > >73, Eric Lemmon WB6FLY > > I only had ICM compensate a Mastr II ICOM for me once. Drifted like > > crazy. Now I install them myself with 50 °C PTC thermistors on the > > xtals. Stability is better than 1 PPM. > > Bob NO6B > > > > > > > > Yahoo! Groups Links > > > > > > > Get your name as your email address. Includes spam protection, 1GB storage, no ads and more Only $1.99/ month - visit http://www.mysite.com/name today! 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] ham band db224
anyone in GA/FL have a surplus / extra / new? ham band cut (140-150) db224 or db264 laying about? looks like the stationmaster took a lick during the hurricane and needs to be replaced doug 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/
