[Repeater-Builder] Re: GE Mastr II/IDA Controller - Selective COR?
--- In Repeater-Builder@yahoogroups.com, John J. Riddell [EMAIL PROTECTED] wrote: Regarding the time out problem in the GE Mastr II, check the repeater control board, 19D417385 G2 and add a .01 capacitor from pin 5 of U-1 and U-2 (555 timers) to ground. * I'm not sure if I have the same kind of control board as you are talking about. Mine says 19B234871 P1 Is this board layout the same? Thanks, Derek 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: GE Mastr II/IDA Controller - Selective COR?
Who made the MASTR Eleven and what years? :-) (-; --- In Repeater-Builder@yahoogroups.com, John J. Riddell [EMAIL PROTECTED] wrote: We had a similar problem here about 20 years ago on VE3RSOa fully commercial set-up Mastr 11 repeater and as I recall it was a 555 timer that needed a .01 Mfd bypass installed on one of the leadsI'll try to dig thru my notes to see if it was documented. It's on one of the boards in the control shelf. John VE3AMZ - Original Message - From: derek_mcintyre [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thursday, July 29, 2004 9:54 PM Subject: [Repeater-Builder] GE Mastr II/IDA Controller - Selective COR? | I am using a full blown GE Mastr II repeater station with an IDA | control board (I suppose this is a factory installation). It has a | speaker on the front, with a volume control and a few selector | switches, and jumpers on the board which select time out, hang time, | etc. I have a CW identifier interfaced as well. | | I am not using any additional controller with this station and am | having a strange problem. Quite often, the repeater seems to drop | users. It's not a time-out timer problem. Users will be talking. | One will un-key, and the next one will pick it up, but the repeater | will NOT repeat! When he finally unkeys, the next user will pick it | up and it will work just fine. It's not one user in particular. | There is no time frame associated with it. It's like the unit has | selective COS. It drops whoever it wants to. | | Is there anything that you can think of that would make this happen? | I have changed hang times all over the place, even took the time out | timer to 10 minute mode. In the manual there is a master timer but | I don't think this is a timing issue. If I can't get this | straightened out, I'll probably wind up having to put an external | controller on the thing. Any suggestions? | | Thanks | KC4FWC | | | | | | | | 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: GE Mastr II/IDA Controller - Selective COR?
OOOPS! That should have been a IV, not a VI (4, not a 6). Simple typo transposing the 'letters'. Joe M. Joe Pedulla wrote: So what happened to Mastr IV V ? BTW To the original post, its MASTR II as in MASTR 2 -Original Message- From: mch [mailto:[EMAIL PROTECTED] Sent: Thursday, July 29, 2004 23:03 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: GE Mastr II/IDA Controller - Selective COR? It's about 24 companies down the acquision road from what is now M/A-Com, and date is not known. ;- They have to get through MASTR VI-X (4-10) first. Joe M. Coy Hilton wrote: Who made the MASTR Eleven and what years? :-) (-; 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: GE Mastr II/IDA Controller - Selective COR?
So what happened to Mastr IV V ? BTW To the original post, its MASTR II as in MASTR 2 -Original Message- From: mch [mailto:[EMAIL PROTECTED] Sent: Thursday, July 29, 2004 23:03 To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: GE Mastr II/IDA Controller - Selective COR? It's about 24 companies down the acquision road from what is now M/A-Com, and date is not known. ;- They have to get through MASTR VI-X (4-10) first. Joe M. Coy Hilton wrote: Who made the MASTR Eleven and what years? :-) (-; 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: GE Mastr II/IDA Controller - Selective COR?
Thanks much for the info. Just the type of answer I was searching for. I'll try that this weekend. Thanks again, KC4FWC Regarding the time out problem in the GE Mastr II, check the repeater control board, 19D417385 G2 and add a .01 capacitor from pin 5 of U-1 and U-2 (555 timers) to ground. These were ommitted by GE for some reason, and if missing can make these timers unstable. Quoting the Sams 555 timer applications sourcebook, Page 18: If the control pin (Pin 5) is not used, it is recommended that it be bypassed to ground with a .01 mfd capacitor to prevent any noise from altering the calculated pulse width 73 John VE3AMZ Waterloo, Ontario. 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/
