[Repeater-Builder] Mitrek COS ?
I have recently purchased an ICS LinkerIIa controller. Super nice guy onthe phone with prompt shipping.. I have a question for the group..Where I live we have a lot of problems when we do not use PL/CTCSS onrepeaters for various reasons. So my question is this... I am using aconverted Mitrek plus 50W mobile (of course PA is turned down)with the HLN4181 tone board.I understand all of the connections etc (thanks repeater-builder.com!)to the outside of the radio. I do not intend to run the repeater atany time in COS mode. It will be in PL mode at all times. If I do thiswill I still have to hook up the COS to the repeater controller ornot? I assume that I can just use the CTCSS input on pin 9 of P1(Port1) on the controller for full control and not hook up pin 8 (COSinput). Is this correct or am I totally looking over something? Againlet me state again the repeater will be in PL decode mode at alltimes.. I do not intend to remove the PL at any time..Thanks ahead of timeShane KI4M Ring'em or ping'em. Make PC-to-phone calls as low as 1¢/min with Yahoo! Messenger with Voice. 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] Mitrek COS ?
Shane, In my case, I had to supply a COS indication to be able to move to the next stage... then the inbound signal is evaluated for the presence of the CTCSS tone Once both conditions are met,my controller will key the transmitter. I don't know for sure how the linker-II operates, but... I have a RC-210 on a Micorand it will not key the transmitter unless it gets a COS signal. COS is step 1... adding the requirement of TOS (CTCSS) is step 2. Most controllersset for tone squelch operation (at least all I have ever had dealings with)will require both conditions to be met before it will key the transmitter... I also run a tone on my 6m repeater. I was having trouble with my micor in that the COS signal would never go completely to zero volts... this would have kept the transmitter keyed all the time if I didn't require the tone. Like you, I do not plan to disable the tone.. ever. Asthe signaling logic for both the TOS and COS are positive in my application, I just tied both COS and TOSdetect (from the controller)to the TOS indicator on the radio. Now whenthe receiversees a tone on the inbound signal, both get the proper logic signal needed to key the repeater. The repeater works fine, but I am unable to drop the tone requirement on the input.I haven't had a chance to deal with the "floating COS voltage" as of yet... but I plan to correct the condition when I get a chance. I would reccomend connecting the controller according to the manufacturers instructions but this approach should work for you.. 73 Mike Perryman www.k5jmp.us -Original Message-From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED]On Behalf Of Shane AutreySent: Thursday, May 18, 2006 11:06 PMTo: Repeater-Builder@yahoogroups.comSubject: [Repeater-Builder] Mitrek COS ?I have recently purchased an ICS LinkerIIa controller. Super nice guy onthe phone with prompt shipping.. I have a question for the group..Where I live we have a lot of problems when we do not use PL/CTCSS onrepeaters for various reasons. So my question is this... I am using aconverted Mitrek plus 50W mobile (of course PA is turned down)with the HLN4181 tone board.I understand all of the connections etc (thanks repeater-builder.com!)to the outside of the radio. I do not intend to run the repeater atany time in COS mode. It will be in PL mode at all times. If I do thiswill I still have to hook up the COS to the repeater controller ornot? I assume that I can just use the CTCSS input on pin 9 of P1(Port1) on the controller for full control and not hook up pin 8 (COSinput). Is this correct or am I totally looking over something? Againlet me state again the repeater will be in PL decode mode at alltimes.. I do not intend to remove the PL at any time..Thanks ahead of timeShane KI4M Ring'em or ping'em. Make PC-to-phone calls as low as 1¢/min with Yahoo! Messenger with Voice. 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] Mitrek COS ?
Hi Richard and Neil... In my instance, it floats between 3 and 3.5 volts which is just enough to confuse my controller as to which state the squelch is actually in. Both approaches would probably work just fine... but haven't had a chance to deal with it yet. I can think of a number of instances whenone might want to disable the input tone.I haven't had a need to so far, so the issue hasn't been resolved as of yet. During the summer is when most station owners want to do maintenance on AM-Directional systems, so my days have been pretty full of late. grin! Thanks for the ideas thoughI will check into it once I get a chance 73 Mike Perryman www.k5jmp.us -Original Message-From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED]On Behalf Of [EMAIL PROTECTED]Sent: Friday, May 19, 2006 11:22 AMTo: Repeater-Builder@yahoogroups.comSubject: Re: [Repeater-Builder] Mitrek COS ? Mike Perryman wrote: I was having trouble with my micor in that the COS signal would never go completely to zero volts... Mocom-70 was good for that too .. my solution came from a fire-alarm controller: Details are fuzzy, but ~ it used some dual-input flip-flop comparator chip (7476 ?) ... sample (waffle-voltage) on one input a reference on the other. When the relative voltages reversed, made for a nice clean on-off at the output, and a xstr follower allowed for switching some juice... /. Hmmm ... I have run into this problem in the past ... I fixed it by biasing the emitter of the first (external) transistor off ground with a voltage divider .. or sometimes by placing a diode in series with the emitter. One time - I think it was a Standard land-mobile radio, the COS feed (aka squelch detector) was several volts above ground. In that instance, I installed a voltage divider between A+ and ground - to positive bias the added transistor above ground so when the squelch opened, the sense lead to the external transistor turned it on. Make sense? Neil 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] Mitrek COS ?
Ok, enjoy, Neil Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Mitrek COS ? Date: Fri, 19 May 2006 12:13:02 -0400 Hi Richard and Neil... In my instance, it floats between 3 and 3.5 volts which is just enough to confuse my controller as to which state the squelch is actually in. Both approaches would probably work just fine... but haven't had a chance to deal with it yet. I can think of a number of instances when one might want to disable the input tone. I haven't had a need to so far, so the issue hasn't been resolved as of yet. During the summer is when most station owners want to do maintenance on AM-Directional systems, so my days have been pretty full of late. grin! Thanks for the ideas though I will check into it once I get a chance 73 Mike Perryman www.k5jmp.us -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, May 19, 2006 11:22 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Mitrek COS ? Mike Perryman wrote: I was having trouble with my micor in that the COS signal would never go completely to zero volts... Mocom-70 was good for that too .. my solution came from a fire-alarm controller: Details are fuzzy, but ~ it used some dual-input flip-flop comparator chip (7476 ?) ... sample (waffle-voltage) on one input a reference on the other. When the relative voltages reversed, made for a nice clean on-off at the output, and a xstr follower allowed for switching some juice... /. Hmmm ... I have run into this problem in the past ... I fixed it by biasing the emitter of the first (external) transistor off ground with a voltage divider .. or sometimes by placing a diode in series with the emitter. One time - I think it was a Standard land-mobile radio, the COS feed (aka squelch detector) was several volts above ground. In that instance, I installed a voltage divider between A+ and ground - to positive bias the added transistor above ground so when the squelch opened, the sense lead to the external transistor turned it on. Make sense? Neil - --- -- YAHOO! GROUPS LINKS a.. Visit your group Repeater-Builder on the web. b.. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. - --- -- 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] Mitrek COS ?
Shane, I would always hook up the COS as well as the CTCSS decode for one reason. The controller will cut off the audio to the repeater transmitter as soon as the COS signal goes away. The CTCSS decode will always hang a few hundred milliseconds and cause a long squelch break on the repeater output when a user unkeys unless the COS is used to shut off the audio before the CTCSS decode goes away. Also - for maintenance using a signal generator without the CTCSS encode capability, I would like to have the capability to turn off the CTCSS capability. You might also find in some emergency situation that you wanted to turn off the CTCSS requirement to allow all users to operate whether they knew the CTCSS code or not. Just a thought - 73 - Jim 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] Dayton webcam
For those who can't be there, mms://66.231.242.90/video 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/
[Repeater-Builder] my we are a bunch of trouble makers here at Dayton
For those of you not here at Dayton, I want you to know it's a great year to be here and there's a lot going on. Had my first great braut and the coffee is still bad. Kevin, Scott, Ken aren't any better lookin' than last year... but the same applies to you know who. :-) Lot's of boat anchors that want to go home with us... I'll give you the damage control at the next post. back soon, 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/
Re: [Repeater-Builder] my we are a bunch of trouble makers here at Dayton
skipp025 wrote: For those of you not here at Dayton, I want you to know it's a great year to be here and there's a lot going on. Had my first great braut and the coffee is still bad. Kevin, Scott, Ken aren't any better lookin' than last year... but the same applies to you know who. :-) Lot's of boat anchors that want to go home with us... I'll give you the damage control at the next post. back soon, skipp As a Dayton newbie, I have no idea if this is a big or small year, but its definitely the most fun I've had in a long time. If you can't find it here... you can't find it. Got to meet Kevin, Scott, and Ken and the RB gang and talk to Ken for a while about his new toys he's working on. AWESOME... And I'm in total overload, being a first-timer. I'm sure that the second I get home I'll think... WHY DIDN'T I BUY THAT (FILL IN THE BLANK) THAT I SAW AT DAYTON?! :-) Very cool. And strange. It's weird to count the number of cars in the hotel parking lot that DON'T have ham plates and lots of antennas on them -- on one hand. That's oh-so-backward? Nate WY0X 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/
