Re: [Repeater-Builder] Two CTCSS Tones out of One TX
[EMAIL PROTECTED] wrote: BTW, the primary reason I wrote an MVP repeater conversion article was because at the time the only instructions available at the time (from WB6RFW) said the MVP CG boards were pretty useless after the radio has been duplexed and to get rid of it. I felt it was just plain wrong to replace a perfectly good CTCSS board with an inferior unit. Agreed-a club here has a couple of UHF MVP's that have had a VHF front end swapped in for use as a 'satellite' receiver. They encode and decode full duplex just fine. Only hitch is that you can't do split tones. -- Jim Barbour WD8CHL 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] Two CTCSS Tones out of One TX
If nothing else, be certain both tones are not distorted. Neil - WA6KLA Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Two CTCSS Tones out of One TX Date: Fri, 21 Apr 2006 18:20:43 -0700 (PDT) You will likely end up with an audible sound by using two signals at the same time. Let's say you use 77.0 Hz and 192.8 Hz. These are unrelated but you will still get the sum and difference frequencies coming out, which would give you around 115 Hz and 269 Hz. You might hear the one at 269. If you used two signals that were much closer, you could hear a slow beat note. Also, depending on the kind of decoders you use, they may not be happy seeing another sub-audible tone present along with the desired one. After saying this, I bet someone will come along and tell you that it will work, and how to do it! Bob M. == --- Kevin Natalia Mitchell [EMAIL PROTECTED] wrote: Hi All, I am wanting to use one TX from our repeater site, to link to two link RX's, these are on opposite sides of the repeater. I was thinking about having two different CTCSS tones, one for each, and then having the TX generate the two tones together. This way I can use one freq., but still have some form of control over the links by switching either, or both CTCSS tones off/on as required. Any ideas, or comments on this setup would be helpful Regards Kev. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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] Two CTCSS Tones out of One TX
Hi All, I am wanting to use one TX from our repeater site, to link to two link RX's, these are on opposite sides of the repeater. I was thinking about having two different CTCSS tones, one for each, and then having the TX generate the two tones together. This way I can use one freq., but still have some form of control over the links by switching either, or both CTCSS tones off/on as required. Any ideas, or comments on this setup would be helpful Regards Kev. As has been pointed out, there are some problems with running two different PL tones at the same time, both on the TX and at the RX sites. It can be done, but it also can have some problems. Here is a thought, a possible solution to the problem. Run a single tone at the TX site, but selectable from 3 choices, say 100.0, 107.2, and 114.8. This can easily be done by diode switching on a Comm-Spec or similiar type encoder. At each RX site, have 2 decoders, one set to a common tone, maybe 100.0. When this PL is selected, both sites will be active. At site A, there will also be a parallel decoder on 107.2, and at site B there will be a parallel decoder on 114.8. So to run both sites, 100.0 is selected at the TX site. For site A only, run 107.2, and for site B only, run 114.8. This solution will cost a little more, but will be much easier to implement and keep running without problems, using any type of decoder. Joe __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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] Two CTCSS Tones out of One TX
How about making it even easier? Just connect the switch outputs of your controller to the encoder dip switch, and then you can easily turn on the tone decode you need with the controller, either automatically or manually. Mick - W7CAT Be sure to check out all the latest at http://www.wyocat.com/tarra Here is a thought, a possible solution to the problem. Run a single tone at the TX site, but selectable from 3 choices, say 100.0, 107.2, and 114.8. This can easily be done by diode switching on a Comm-Spec or similiar type encoder. At each RX site, have 2 decoders, one set to a common tone, maybe 100.0. When this PL is selected, both sites will be active. At site "A", there will also be a parallel decoder on 107.2, and at site "B" there will be a parallel decoder on 114.8. So to run both sites, 100.0 is selected at the TX site. For site "A" only, run 107.2, and for site "B" only, run 114.8. This solution will cost a little more, but will be much easier to implement and keep running without problems, using any type of decoder. Joe __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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/ __ NOD32 1.1501 (20060421) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com 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] Two CTCSS Tones out of One TX
That is an easy problem to fix, simply make a low pass filter to roll off everything above about 220 HZ. -- Original Message -- Received: Fri, 21 Apr 2006 08:20:49 PM CDT From: Bob M. [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Two CTCSS Tones out of One TX You will likely end up with an audible sound by using two signals at the same time. Let's say you use 77.0 Hz and 192.8 Hz. These are unrelated but you will still get the sum and difference frequencies coming out, which would give you around 115 Hz and 269 Hz. You might hear the one at 269. If you used two signals that were much closer, you could hear a slow beat note. Also, depending on the kind of decoders you use, they may not be happy seeing another sub-audible tone present along with the desired one. After saying this, I bet someone will come along and tell you that it will work, and how to do it! Bob M. == --- Kevin Natalia Mitchell [EMAIL PROTECTED] wrote: Hi All, I am wanting to use one TX from our repeater site, to link to two link RX's, these are on opposite sides of the repeater. I was thinking about having two different CTCSS tones, one for each, and then having the TX generate the two tones together. This way I can use one freq., but still have some form of control over the links by switching either, or both CTCSS tones off/on as required. 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] Two CTCSS Tones out of One TX
Good idea, did not think about this option. This will serve our situation well. And will be an easy fix. Regards Kev. As has been pointed out, there are some problems with running two different PL tones at the same time, both on the TX and at the RX sites. It can be done, but it also can have some problems. Here is a thought, a possible solution to the problem. Run a single tone at the TX site, but selectable from 3 choices, say 100.0, 107.2, and 114.8. This can easily be done by diode switching on a Comm-Spec or similiar type encoder. At each RX site, have 2 decoders, one set to a common tone, maybe 100.0. When this PL is selected, both sites will be active. At site A, there will also be a parallel decoder on 107.2, and at site B there will be a parallel decoder on 114.8. So to run both sites, 100.0 is selected at the TX site. For site A only, run 107.2, and for site B only, run 114.8. This solution will cost a little more, but will be much easier to implement and keep running without problems, using any type of decoder. Joe __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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] Two CTCSS Tones out of One TX
Hi All, I am wanting to use one TX from our repeater site, to link to two link RX's, these are on opposite sides of the repeater. I was thinking about having two different CTCSS tones, one for each, and then having the TX generate the two tones together. This way I can use one freq., but still have some form of control over the links by switching either, or both CTCSS tones off/on as required. Any ideas, or comments on this setup would be helpful Regards Kev. Get Skype and call me for free. 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] Two CTCSS Tones out of One TX
I did run 162.2 and 192.8 on a HT90 and it did work with a Micor and M Pro receiver on the station end. Newer digital tone decoders will not work because the agregate of the two tones will cause the tone to look like the sum of the two, but it will excite a decoder reed, or frequency selective decoder. The tones were not distorted and not noticable in the AF pass band. Steve NU5D On 4/21/06, Bob M. [EMAIL PROTECTED] wrote: You will likely end up with an audible sound by usingtwo signals at the same time. Let's say you use 77.0Hz and 192.8 Hz. These are unrelated but you willstill get the sum and difference frequencies coming out, which would give you around 115 Hz and 269 Hz.You might hear the one at 269. If you used two signalsthat were much closer, you could hear a slow beatnote.Also, depending on the kind of decoders you use, they may not be happy seeing another sub-audible tonepresent along with the desired one.After saying this, I bet someone will come along andtell you that it will work, and how to do it!Bob M.== --- Kevin Natalia Mitchell [EMAIL PROTECTED]wrote: Hi All, I am wanting to use one TX from our repeater site, to link to two link RX's, these are on opposite sides of the repeater. I was thinking about having two different CTCSS tones, one for each, and then having the TX generate the two tones together. This way I can use one freq., but still have some form of control over the links by switching either, or both CTCSS tones off/on as required. Any ideas, or comments on this setup would be helpful Regards Kev.__ Do You Yahoo!?Tired of spam?Yahoo! Mail has the best spam protection aroundhttp://mail.yahoo.comYahoo! 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/ -- Ham Radio Spoken Here.NU5D 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.
