RE: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question
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
Re: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question
Thats what I call things that have been relocated to my shack. Actually my trash is stuff. It changes names when it enters the shack. Collin -Original Message- From: Mike Besemer (WM4B) mwbese...@cox.net To: Repeater-Builder@yahoogroups.com Sent: Mon, 16 Mar 2009 6:00 am Subject: RE: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question 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 To: Repeater-Builder@yahoogroups.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-buil...@yahoogroups.com] On Behalf Of Don Kupferschmidt Sent: Sunday, March 15, 2009 10:33 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Micor Mo bile 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 To: Repeater-Builder@yahoogroups.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-buil...@yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:46 PM To: Repeater-Builder@yahoogroups.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 VHF20exciters 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@yahoogroups.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 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@yahoogroups.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 Subject: RE
RE: [Repeater-Builder] Re: Micor Mobile TLD8262B10 Exciter Question
Skipp, I went down both roads with the same outcome. no response from the 2nd set of coils. No time to troubleshoot further. may have a bad transistor or coil. Hopefully time will materialize soon. 73, Mike WM4B _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of skipp025 Sent: Sunday, March 15, 2009 9:58 PM To: Repeater-Builder@yahoogroups.com 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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:46 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Mike Besemer (WM4B) Sent: Sunday, March 15, 2009 1:30 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:19 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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
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 To: Repeater-Builder@yahoogroups.com Sent: Sunday, March 15, 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-buil...@yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:46 PM To: Repeater-Builder@yahoogroups.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@yahoogroups.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 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@yahoogroups.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 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@yahoogroups.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 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
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-buil...@yahoogroups.com] On Behalf Of Don Kupferschmidt Sent: Sunday, March 15, 2009 10:33 PM To: Repeater-Builder@yahoogroups.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. mailto:skipp025%40yahoo.com com To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Sunday, March 15, 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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:46 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Mike Besemer (WM4B) Sent: Sunday, March 15, 2009 1:30 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:19 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.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@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com
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 To: Repeater-Builder@yahoogroups.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-buil...@yahoogroups.com] On Behalf Of Don Kupferschmidt Sent: Sunday, March 15, 2009 10:33 PM To: Repeater-Builder@yahoogroups.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 To: Repeater-Builder@yahoogroups.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-buil...@yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, March 15, 2009 4:46 PM To: Repeater-Builder@yahoogroups.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@yahoogroups.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 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@yahoogroups.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 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@yahoogroups.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
