Trash? What the heck is ‘trash’?
de WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n4...@aol.com Sent: Sunday, March 15, 2009 11:38 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question Mike, Don't pitch em in the trash, I'll take em. Collin -----Original Message----- From: Mike Besemer (WM4B) <mwbese...@cox.net <mailto:mwbesemer%40cox.net> > To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> Sent: Sun, 15 Mar 2009 10:35 pm Subject: RE: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question Guys, As I said in my previous post, I DID that. No joy. Mike WM4B ---------------------------------------------------------- From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> [mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Don Kupferschmidt Sent: Sunday, March 15, 2009 10:33 PM To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> Subject: Re: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question Mike, Take the advise that Skipp has given you. In one project I didn't heed the advise of others to preset the coils from the service manual and I was pulling my hair out for days trying to figure out why the exciter wouldn't tune up properly. Do like he says . . . . reset everything back to the chart indicated height position. Then use the manual to tune up the exciter. Trust me, (and others), the exciter *will* tune up properly UNLESS you have something else going on. 73, Don, KD9PT ----- Original Message ----- From: "skipp025" <skipp...@yahoo.com <mailto:skipp025%40yahoo.com> > To: <Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > Sent: Sunday, March2015, 2009 8:57 PM Subject: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question > > Based on my experience with radios like the Micor Mobile with > the tx band-pass filter and the MSR-2000 exciter... the best > way to tune up these units is to find the coil preset information > in the Service Manual and start with reseting those items back > to the chart indicated height position. > > Sure you can adjust some coils when moving the exciter small > distances from the last operating frequency. But some coils > are not simple peak or dip adjustments. They interact with the > previous or trailing coil adjustments and should be adjusted > per the manual only... re-tweaks just don't do it. > > In the process of tuning the exciter and related filters you'll > sometimes see only slight meter movements as you step up through > the chain/process. One stage adjustment of the MSR-2000 is really > hard to see initial meter movement. > > A re-tweak of the exciter won't always show the mentioned small > meter movements and it's sometimes very easy to adjust a stage > to a wrong peak/dip. > > So start from scratch most every time. Be sure to use the coil > position chart information provided in the manual or your results > will surely vary. > > cheers, > s. > >> "Mike Besemer \(WM4B\)" <mwbese...@...> wrote: >> >> Not lookin' good for the home-team. I've got some reading at the meter >> plug >> pin 3, but L403 doesn't effect it at all. No indication at meter plug 4 >> at >> all. Guess I need to troubleshoot or scare up another exciter. Good >> thing >> this is a long-term project! >> >> >> >> 73, >> >> >> >> Mike >> >> WM4B >> >> >> >> From: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> [mailto:Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Eric Lemmon >> Sent: Sunday, March 15, 2009 4:46 PM >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> Subject: RE: [Repeater-Builder] Micor Mobile TLD8262B10 Exciter Question >> >> >> >> Mike, >> >> Probably. The fact that you could receive the signal suggests that the >> exciter is working, but just has a very low output. Tuning should fix >> that. >> Most commercial-band VHF exciters will tune to 2m without modification, >> but >> that is not always the case. >> >> 73, Eric Lemmon WB6FLY >> >> -----Original Message----- >> From: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> [mailto:Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Mike Besemer >> (WM4B) >> Sent: Sunday, March 15, 2009 1:30 PM >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> Subject: RE: [Repeater-Builder] Micor Mobile TLD8262B10 Exciter Question >> >> Eric, >> >> Got that. thanks. But the exciter is okay as-is (except for tuning), is >> that correct? >> >> Mike >> >> From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> [mailto:Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Eric Lemmon >> Sent: Sunday, March 15, 2009 4:19 PM >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> Subject: RE: [Repeater-Builder] Micor Mobile TLD8262B10 Exciter Question >> >> Mike, >> >> Besides tuning the exciter, you'll also need to tune the bandpass filter >> that is between the exciter and the PA. Start here: >> <www.repeater-builder.com/rbtip/micorvhfbpf.html> >> >> 73, Eric Lemmon WB6FLY >> >> -----Original Message----- >> From: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> [mailto:Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Mike Besemer >> (WM4B) >> Sent: Sunday, March 15, 2009 1:00 PM >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com> >> Subject: [Repeater-Builder] Micor Mobile TLD8262B10 Exciter Question >> >> Micor Gurus, >> >> I just came into possession of a Micor Mobile with this exciter >> installed. >> The unit had no Channel Elements installed when I got it, so I borrowed >> one >> out of another Micor I have just to try the radio out. With a 147.015 MHz >> Channel Element installed in this exciter, I get no power from the radio, >> but I do hear the signal in a nearby receiver. >> >> I swapped the Exciter (same Part #) from my other (working) Micor into >> the >> unknown radio and get good power using this channel element. With the >> unknown exciter in the known-good radio, I get no power output. >> Obviously, >> I've isolated the 'issue' to the exciter. >> >> My question is, will this exciter work in the 2-meter range without >> modification? If so, then apparently I've got some troubleshooting to do. >> If not, what mods need to be done to make it work down this low? >> >> Thanks in advance, >> >> Mike >> WM4B >> > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > >
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