RE: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
I agree... When I was a board tech, we would wash boards in a tub of organic cleaner. I can't remember the name of it, but we nicknamed it green death because it was pretty hard on our skin. After letting the board soak in it a while, we'd then take it out rinse it well, then dry it with compressed air. Never cleaned monitor boards though, I was nervous about getting water in or under the flyback. Richard, N7TGB -Original Message-From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED]On Behalf Of Fred TownsendSent: Tuesday, January 03, 2006 11:18 AMTo: Repeater-Builder@yahoogroups.comSubject: Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base I'd like to second Skipps comments and add one of my own. At the factory we used ordinary dish washers (until we got the commercial washers) to clean PC boards. Most components are water safe. Exceptions, are non hermetic parts like switches and transformers; things with paper or bakalite coil forms. Spic and Span is a little harsh. For general cleaning, including automatic dish washers, useArm and Hammer baking soda. If you think someone has used an acid flux (sometimes necessary to solder nickel or steel) clean with ammonia before the baking soda. Finally if you have rosin flux isopropyl alcohol works well. Don't use rubbing alcohol (contains water) or use alcohol in the automatic dish washer (it will burn).Fred AE6QL YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
hello Fred i remembered seeing my friends that were working at a radio-mobile dept washing there phoenix ,all there parts,with a misture of Mrnet and alcool and passing air compressor after water to clean ad get dry all parts they even put the part under a red light when it was time for the coffee break :-) gervais Original Message Follows From: Fred Townsend <[EMAIL PROTECTED]> Reply-To: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base Date: Tue, 03 Jan 2006 11:17:54 -0800 skipp025 wrote: >>"gervais fillion" <[EMAIL PROTECTED]> wrote: >>well fred this is in interesting discussion here >>i dont have all the knowledge to work on the modification too fit the >>controler you see so i must pay for it in a telecom company here every >>time i need to do something on it (as many others too ) >> >> > >One reason why this group is here... to take the rocket science out of >repeater and radio work/projects. With enough information, it would not be >a problem to do the modification yourself. > > > >>these MSR are so rare to find good one around here, sometime you may find >>one but when you see it you wonder why it is not at the scrap yardthey >>are so used and dirty. >> >> > >I pull the cards, receiver, transmitter, power amplifier and power supply >from the chassis. I then mix up a bucket of warm water - Spic and Span and >scrub down everything. Hose all the soap out and let it dry in the sun or a >warm shop with air moving by it. A warm towell and a compressed air supply >help blow out the remaining moisture. > I'd like to second Skipps comments and add one of my own. At the factory we used ordinary dish washers (until we got the commercial washers) to clean PC boards. Most components are water safe. Exceptions, are non hermetic parts like switches and transformers; things with paper or bakalite coil forms. Spic and Span is a little harsh. For general cleaning, including automatic dish washers, useArm and Hammer baking soda. If you think someone has used an acid flux (sometimes necessary to solder nickel or steel) clean with ammonia before the baking soda. Finally if you have rosin flux isopropyl alcohol works well. Don't use rubbing alcohol (contains water) or use alcohol in the automatic dish washer (it will burn). Fred AE6QL >For the most part, there is nothing left in the cabinet that will be >damaged by a good cleaning if you can remove the remaining clean >water/moisture within a reasonable time frame. Micor or MSR hardware can >be cleaned up pretty well. > > > >>,it will not happened often this "turn on and off event" so it will not >>damage the equipment. >> > >The MSR Power supply - Ferro Resonant transformer is very hard to kill. I >doubt you'll hurt the repeater/base. > > > >>i remember seeing somewhere on the web an australian that built a board >>that what use to turn on and off a remote wheater station ,,,that was >>operate via a repeater ,,, another thing to find >> >> > >A number of dtmf controllers are available. Most are repeater controllers. >I mentioned the hamtronics unit because it is well suited for the your >task. > >good luck >skipp > > > > > > > > >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: interface to shut off a radio on temporaly base
Title: Message Kitchen dishwashers are also great for cleaning gunked-up mobile radio accessories like control heads, speakers, mics, mounting brackets, etc. Remove the speakers, mic elements, PC boards that contain switches, and other electronics that don't take kindly to water first of course. Even cable harnesses can go into the dishwasher - just put a baggie over the cable ends and seal with electrical tape (better to put these on the top rack away from the electric heater/dryer). Avoid agressive automatic dishwasher detergents if there are metallized parts like brushed aluminum estucheons and the like. Back in the day, after we had collected several PC or terminal keyboards that had suffered "coffee contamination" I'd run them through the dishwasher, key-side-down to assist in drainage/drying. Probably 3/4 of them survived and could be returned to service. A simple and non-time-consuming fix when you have nothing to lose and can't justify the time or cost to take apart and clean manually. I'd like to second Skipps comments and add one of my own. At the factory we used ordinary dish washers (until we got the commercial washers) to clean PC boards. Most components are water safe. Exceptions, are non hermetic parts like switches and transformers; things with paper or bakalite coil forms. Spic and Span is a little harsh. For general cleaning, including automatic dish washers, useArm and Hammer baking soda. If you think someone has used an acid flux (sometimes necessary to solder nickel or steel) clean with ammonia before the baking soda. Finally if you have rosin flux isopropyl alcohol works well. Don't use rubbing alcohol (contains water) or use alcohol in the automatic dish washer (it will burn). YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
skipp025 wrote: "gervais fillion" <[EMAIL PROTECTED]> wrote: well fred this is in interesting discussion here i dont have all the knowledge to work on the modification too fit the controler you see so i must pay for it in a telecom company here every time i need to do something on it (as many others too ) One reason why this group is here... to take the rocket science out of repeater and radio work/projects. With enough information, it would not be a problem to do the modification yourself. these MSR are so rare to find good one around here, sometime you may find one but when you see it you wonder why it is not at the scrap yardthey are so used and dirty. I pull the cards, receiver, transmitter, power amplifier and power supply from the chassis. I then mix up a bucket of warm water - Spic and Span and scrub down everything. Hose all the soap out and let it dry in the sun or a warm shop with air moving by it. A warm towell and a compressed air supply help blow out the remaining moisture. I'd like to second Skipps comments and add one of my own. At the factory we used ordinary dish washers (until we got the commercial washers) to clean PC boards. Most components are water safe. Exceptions, are non hermetic parts like switches and transformers; things with paper or bakalite coil forms. Spic and Span is a little harsh. For general cleaning, including automatic dish washers, useArm and Hammer baking soda. If you think someone has used an acid flux (sometimes necessary to solder nickel or steel) clean with ammonia before the baking soda. Finally if you have rosin flux isopropyl alcohol works well. Don't use rubbing alcohol (contains water) or use alcohol in the automatic dish washer (it will burn). Fred AE6QL For the most part, there is nothing left in the cabinet that will be damaged by a good cleaning if you can remove the remaining clean water/moisture within a reasonable time frame. Micor or MSR hardware can be cleaned up pretty well. ,it will not happened often this "turn on and off event" so it will not damage the equipment. The MSR Power supply - Ferro Resonant transformer is very hard to kill. I doubt you'll hurt the repeater/base. i remember seeing somewhere on the web an australian that built a board that what use to turn on and off a remote wheater station ,,,that was operate via a repeater ,,, another thing to find A number of dtmf controllers are available. Most are repeater controllers. I mentioned the hamtronics unit because it is well suited for the your task. good luck skipp 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/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
you might want to take a look at this dtmf controller it will do what you ask http://www.nhrc.net/nhrc-remote-plus/index.php keith va3kmc gervais fillion wrote: > well fred this is in interesting discussion here > i dont have all lthe knowledge to work on the modif too fit the controler > you see > so i must pay for it in a telecom compagny here every time i need to do > something on it (as many others too ) > these MSR are so rare to find good one around here ,sometime you may find > one but when you see it you wonder why it is not at the scrap yardthey > are so used and dirty. > > ,it will not happened often this "turn on and off event" so it will > not damage the equipment > > i remember seeing somewhere on the web an australian that built a board that > what used > to turn on and off a remote wheater station ,,,that was operate via a > repeater ,,, > another thing to find > > ok best whishes Fred at you and you family ,for this new year > > gervais,ve2ckn > > > > > Original Message Follows > From: Fred Townsend <[EMAIL PROTECTED]> > Reply-To: Repeater-Builder@yahoogroups.com > To: Repeater-Builder@yahoogroups.com > Subject: Re: [Repeater-Builder] Re: interface to shut off a radio on > temporaly base > Date: Mon, 02 Jan 2006 18:03:44 -0800 > > > > skipp025 wrote: > > >>Hello back, >> >>You'd be installing a dtmf decoder on the vhf repeater receiver audio >>output. The Hamtronics TD-2 would do the job quite nice. >> >>I would probably do something different from throwing the AC Mains on and >>off, but it's not a bad idea. It just makes me nervous trying to tell >>someone how/why to switch semi large AC loads on and off. >> >>A high ac load current Solid State Relay with 3-30 volt dc control would be >>required. Good ones seem to run about $10 to $20 US on the used/new old >>stock market place. >> >>I would have simply disabled the UHF MSR with some dc logic lines... but >>shutting off the unused MSR isn't a bad deal when you're paying for >>electricity. >> >>Note the SSR (solid state relay) should be the switch at zero cross sine >>wave type, else you'll have large thuds and groans from the power >>transformer switching on during fractional on times of the supply ac sine >>wave. >> > > There is a characteristic about SSRs that you should be aware of. In the off > state a SSR can have a leakage value that can be as low as 100K ohms. That's > enough to light a NE2 neon bulb. It's also enough to shock you if you get > across an open circuit. Be sure to include a safety switch in series for > working on the system. Of course you need a fuse or circuit breaker too. > > Fred, AE6QL > > >>You could easily be in and out of this project for about $100 US. >> >>cheers, >>skipp >> >> >> >> >>>"gervais fillion" <[EMAIL PROTECTED]> wrote: >>>well skip >>>i would go for that kind of project: >>>on the vhf transmetter i would install a controler that would control the >>>AC of the uhf link msr, >>>as simple as that in theory >>> >>>i would send a dtmf code on the vhf and the controler would turn off the >>>uhf radio by cutting the 120vac,as simple as that . >>> >>>now i must find a board that can do that ,and add a relay for the turn on >>>and off of the msr uhf >>>73/s skipp >>>gervais,ve2ckn >>> >>>Original Message Follows >>>From: "skipp025" <[EMAIL PROTECTED]> >>>Reply-To: Repeater-Builder@yahoogroups.com >>>To: Repeater-Builder@yahoogroups.com >>>Subject: [Repeater-Builder] Re: interface to shut off a radio on >>> >>> >> >>temporaly >> >> >>>base >>>Date: Mon, 02 Jan 2006 17:59:28 - >>> >>> >>>>"gervais fillion" <[EMAIL PROTECTED]> wrote: >>>>Well,i dont know if i am at the right place but i'm >>>>going fishing here! >>> >>>What are you using for bait..? :-) >>> >>> >>>>I have 2 MSR 2000 ,one is a Repeater the other one is >>>>a uhf msr2000 used as a link. >>> >>>>They are are both united by a cable,a big 1.5 x 2.5 >>>>inch plug. I need an interface that i would install >>>>on the vhf repeater so i would shut off the uhf link >>>>via a dtmf code i would send on the air , or sometime >>>>i could had at
Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
well fred this is in interesting discussion here i dont have all lthe knowledge to work on the modif too fit the controler you see so i must pay for it in a telecom compagny here every time i need to do something on it (as many others too ) these MSR are so rare to find good one around here ,sometime you may find one but when you see it you wonder why it is not at the scrap yardthey are so used and dirty. ,it will not happened often this "turn on and off event" so it will not damage the equipment i remember seeing somewhere on the web an australian that built a board that what used to turn on and off a remote wheater station ,,,that was operate via a repeater ,,, another thing to find ok best whishes Fred at you and you family ,for this new year gervais,ve2ckn Original Message Follows From: Fred Townsend <[EMAIL PROTECTED]> Reply-To: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: interface to shut off a radio on temporaly base Date: Mon, 02 Jan 2006 18:03:44 -0800 skipp025 wrote: >Hello back, > >You'd be installing a dtmf decoder on the vhf repeater receiver audio >output. The Hamtronics TD-2 would do the job quite nice. > >I would probably do something different from throwing the AC Mains on and >off, but it's not a bad idea. It just makes me nervous trying to tell >someone how/why to switch semi large AC loads on and off. > >A high ac load current Solid State Relay with 3-30 volt dc control would be >required. Good ones seem to run about $10 to $20 US on the used/new old >stock market place. > >I would have simply disabled the UHF MSR with some dc logic lines... but >shutting off the unused MSR isn't a bad deal when you're paying for >electricity. > >Note the SSR (solid state relay) should be the switch at zero cross sine >wave type, else you'll have large thuds and groans from the power >transformer switching on during fractional on times of the supply ac sine >wave. > There is a characteristic about SSRs that you should be aware of. In the off state a SSR can have a leakage value that can be as low as 100K ohms. That's enough to light a NE2 neon bulb. It's also enough to shock you if you get across an open circuit. Be sure to include a safety switch in series for working on the system. Of course you need a fuse or circuit breaker too. Fred, AE6QL >You could easily be in and out of this project for about $100 US. > >cheers, >skipp > > > >>"gervais fillion" <[EMAIL PROTECTED]> wrote: >>well skip >>i would go for that kind of project: >>on the vhf transmetter i would install a controler that would control the >>AC of the uhf link msr, >>as simple as that in theory >> >>i would send a dtmf code on the vhf and the controler would turn off the >>uhf radio by cutting the 120vac,as simple as that . >> >>now i must find a board that can do that ,and add a relay for the turn on >>and off of the msr uhf >>73/s skipp >>gervais,ve2ckn >> >>Original Message Follows >>From: "skipp025" <[EMAIL PROTECTED]> >>Reply-To: Repeater-Builder@yahoogroups.com >>To: Repeater-Builder@yahoogroups.com >>Subject: [Repeater-Builder] Re: interface to shut off a radio on >> >> >temporaly > >>base >>Date: Mon, 02 Jan 2006 17:59:28 - >> >> >"gervais fillion" <[EMAIL PROTECTED]> wrote: >> > Well,i dont know if i am at the right place but i'm >> > going fishing here! >> >>What are you using for bait..? :-) >> >> > I have 2 MSR 2000 ,one is a Repeater the other one is >> > a uhf msr2000 used as a link. >> >> > They are are both united by a cable,a big 1.5 x 2.5 >> > inch plug. I need an interface that i would install >> > on the vhf repeater so i would shut off the uhf link >> > via a dtmf code i would send on the air , or sometime >> > i could had at the uhf msr to stop tx when i decide, >> > does it exist somewhere?? >> >>Yes, if you add many of the common tone decoders or >>small repeater controllers with logic outputs use to >>disable the UHF Radio. >> >> > Why all this, it will be used as a link on a big network >> > of repeaters and time too time we need locally to connect >> > too my echoirlp system so i need to close the uhf link >> > so the network wont hear us >> > 73/s all and thanks if you can help me >> > gervais,ve2ckn >> >>Wire a tone decoder/control circuit like the Hamtronics >>TD-2 DTMF controller into your system. Simply disable >>the push to talk (transmit) and receiver audio/cor >>functions in the link UHF radio or the interface connections >>from the link radio back inside the VHF Repeater. >> >>cheers, >>skipp >> >> >> >> >> >> >> >> >>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: interface to shut off a radio on temporaly base
skipp025 wrote: Hello back, You'd be installing a dtmf decoder on the vhf repeater receiver audio output. The Hamtronics TD-2 would do the job quite nice. I would probably do something different from throwing the AC Mains on and off, but it's not a bad idea. It just makes me nervous trying to tell someone how/why to switch semi large AC loads on and off. A high ac load current Solid State Relay with 3-30 volt dc control would be required. Good ones seem to run about $10 to $20 US on the used/new old stock market place. I would have simply disabled the UHF MSR with some dc logic lines... but shutting off the unused MSR isn't a bad deal when you're paying for electricity. Note the SSR (solid state relay) should be the switch at zero cross sine wave type, else you'll have large thuds and groans from the power transformer switching on during fractional on times of the supply ac sine wave. There is a characteristic about SSRs that you should be aware of. In the off state a SSR can have a leakage value that can be as low as 100K ohms. That's enough to light a NE2 neon bulb. It's also enough to shock you if you get across an open circuit. Be sure to include a safety switch in series for working on the system. Of course you need a fuse or circuit breaker too. Fred, AE6QL You could easily be in and out of this project for about $100 US. cheers, skipp "gervais fillion" <[EMAIL PROTECTED]> wrote: well skip i would go for that kind of project: on the vhf transmetter i would install a controler that would control the AC of the uhf link msr, as simple as that in theory i would send a dtmf code on the vhf and the controler would turn off the uhf radio by cutting the 120vac,as simple as that . now i must find a board that can do that ,and add a relay for the turn on and off of the msr uhf 73/s skipp gervais,ve2ckn Original Message Follows From: "skipp025" <[EMAIL PROTECTED]> Reply-To: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: interface to shut off a radio on temporaly base Date: Mon, 02 Jan 2006 17:59:28 - >"gervais fillion" <[EMAIL PROTECTED]> wrote: > Well,i dont know if i am at the right place but i'm > going fishing here! What are you using for bait..? :-) > I have 2 MSR 2000 ,one is a Repeater the other one is > a uhf msr2000 used as a link. > They are are both united by a cable,a big 1.5 x 2.5 > inch plug. I need an interface that i would install > on the vhf repeater so i would shut off the uhf link > via a dtmf code i would send on the air , or sometime > i could had at the uhf msr to stop tx when i decide, > does it exist somewhere?? Yes, if you add many of the common tone decoders or small repeater controllers with logic outputs use to disable the UHF Radio. > Why all this, it will be used as a link on a big network > of repeaters and time too time we need locally to connect > too my echoirlp system so i need to close the uhf link > so the network wont hear us > 73/s all and thanks if you can help me > gervais,ve2ckn Wire a tone decoder/control circuit like the Hamtronics TD-2 DTMF controller into your system. Simply disable the push to talk (transmit) and receiver audio/cor functions in the link UHF radio or the interface connections from the link radio back inside the VHF Repeater. cheers, skipp 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/ YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [Repeater-Builder] Re: interface to shut off a radio on temporaly base
well skip i would go for that kind of project: on the vhf transmetter i would install a controler that would control the AC of the uhf link msr, as simple as that in theory i would send a dtmf code on the vhf and the controler would turn off the uhf radio by cutting the 120vac,as simple as that . now i must find a board that can do that ,and add a relay for the turn on and off of the msr uhf 73/s skipp gervais,ve2ckn Original Message Follows From: "skipp025" <[EMAIL PROTECTED]> Reply-To: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: interface to shut off a radio on temporaly base Date: Mon, 02 Jan 2006 17:59:28 - >"gervais fillion" <[EMAIL PROTECTED]> wrote: > Well,i dont know if i am at the right place but i'm > going fishing here! What are you using for bait..? :-) > I have 2 MSR 2000 ,one is a Repeater the other one is > a uhf msr2000 used as a link. > They are are both united by a cable,a big 1.5 x 2.5 > inch plug. I need an interface that i would install > on the vhf repeater so i would shut off the uhf link > via a dtmf code i would send on the air , or sometime > i could had at the uhf msr to stop tx when i decide, > does it exist somewhere?? Yes, if you add many of the common tone decoders or small repeater controllers with logic outputs use to disable the UHF Radio. > Why all this, it will be used as a link on a big network > of repeaters and time too time we need locally to connect > too my echoirlp system so i need to close the uhf link > so the network wont hear us > 73/s all and thanks if you can help me > gervais,ve2ckn Wire a tone decoder/control circuit like the Hamtronics TD-2 DTMF controller into your system. Simply disable the push to talk (transmit) and receiver audio/cor functions in the link UHF radio or the interface connections from the link radio back inside the VHF Repeater. cheers, skipp 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/
