Yes, as Jerry points out, doing all of this with ex-commercial rigs means you'll have "Reverse Burst" or "Squelch Tail Elimination", which are both very adequately documented on the Repeater-Builder website.
(They are two different things, technically... different number of degrees of phase shift on the CTCSS on un-key. Some modern commercial rigs even allow you to CHOOSE which one you'd like to detect... and the S-Com 7330 allows you to choose which one you want to transmit.) I have an in-band link (would prefer not to, but similar limitations) that's a MASTR-II "talking" to a MASTR-II with the stock CTCSS boards. Every unkey is perfectly silent. Which is as God intended. (LOL!) Sure wish ham manufacturers would get on the ball on this feature and get it in the ham rigs. It's only been a decade or so now... all of our repeaters do it... the rigs don't know how to decode it, and I refuse to mess with "chicken burst". I just use "real" radios, and it all sounds great! (BIG GRIN...) -- Nate Duehr, WY0X n...@natetech.com On Tue, 10 Nov 2009 20:19 +0000, "Jerry" <gdste...@yahoo.com> wrote: Thanks for the ideas. I really can't add radios to the existing sites as we don't always know which systems will be linked. I'll have to check to see how many of our local repeaters drop their encoded pl after the input drops. If the pl drops right away, I think your solutions will be the way I go. Thanks, Jerry K8CMI --- In [1]repeater-buil...@yahoogroups. com, Pointman <shield1...@...> wrote: > > Make sure you Full PL BOTH tx and rxers. I have had great luck with this method. At least with the Motorolas I use as soon as the input signal is dropped, the no squelch tall...and therefore no constant keying. > de KM3W > > --- On Tue, 11/10/09, Nate Duehr <n...@...> wrote: > > From: Nate Duehr <n...@...> > Subject: Re: [Repeater-Builder] Linking Repeaters Remotely > To: [2]repeater-buil...@yahoogroups.com > Date: Tuesday, November 10, 2009, 5:50 AM > > > > > > > > > > > > > > > > > Â > > > > > > > > > > > > On Nov 9, 2009, at 5:30 PM, Jerry wrote: > > > > > There have been times when during events it would have been great if two different repeaters had been linked. I've been kicking around the idea of a portable repeater linker consisting of one VHF Radius, one UHF Radius, and a RICK controller in the crossband mode. I've talked to the different repeater owners and they have given me permission to give my idea a try. > > > > > > The 'linker' works great the first time. The receiver radio hears the output of the first repeater and keys the transmitter radio which keys up the repeater. The problem comes in when the transmitter unkeys. The receiver radio hears the tail of the second repeater and keys up. When the second machine drops, the transmitter radio hears the tail of it's repeater and keys up. This continues FOREVER. > > > > > > Does anyone have any ideas or additional logic I can add to solve this problem? > > > > > > Thanks, > > > > > > Jerry > > > > Kinda. > > > > First... the idea Matthew offered will work. CTCSS on user signal received on both repeaters. Kinda. > > > > Problem: ID's. The RICK isn't properly ID'ing the "link" transmitters. > > > > Many of us have been down this path on the list. It'll lead to an annoying discussion of Part 97 if we go too far down that road. But you DO need to ID every transmitter. 'Nuff said. > > > > Best way: Put a dedicated link TX/RX at each repeater site or some sort of VoIP linking on its own controller port. In-band RF linking on the user input frequencies is a kludge at best. It can double with users, and has other timing problems... > > > > If you MUST link in-band, make the link margin (RF power) high enough that if the link doubles with someone, the LINK wins and captures the repeater receiver well enough that at least one of the transmissions can be heard by all... > > > > --- > > Nate Duehr, WY0X > > n...@natetech. com > References 1. mailto:Repeater-Builder%40yahoogroups.com 2. mailto:Repeater-Builder%40yahoogroups.com 3. mailto:gdste...@yahoo.com?subject=re:%20Linking%20Repeaters%20Remotely 4. mailto:repeater-buil...@yahoogroups.com?subject=re:%20Linking%20Repeaters%20Remotely 5. http://groups.yahoo.com/group/Repeater-Builder/message/95547;_ylc=X3oDMTM1ZGJvcHZmBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEbXNnSWQDOTU1NTkEc2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMjU3ODg0MzQ0BHRwY0lkAzk1NTQ3 6. http://groups.yahoo.com/group/Repeater-Builder/members;_ylc=X3oDMTJlaTNpZXBqBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA3Z0bARzbGsDdm1icnMEc3RpbWUDMTI1Nzg4NDM0NA--?o=6 7. http://groups.yahoo.com/group/Repeater-Builder/files;_ylc=X3oDMTJmdWl0bW05BF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA3Z0bARzbGsDdmZpbGVzBHN0aW1lAzEyNTc4ODQzNDQ- 8. http://groups.yahoo.com/group/Repeater-Builder;_ylc=X3oDMTJkcHZlcHQ5BF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA3Z0bARzbGsDdmdocARzdGltZQMxMjU3ODg0MzQ0 9. http://groups.yahoo.com/group/Repeater-Builder/post;_ylc=X3oDMTJkdmNodjlmBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA2Z0cgRzbGsDbnRwYwRzdGltZQMxMjU3ODg0MzQ0 10. http://us.ard.yahoo.com/SIG=14kp3sq7i/M=493064.12016295.13793596.10835568/D=groups/S=1705063108:MKP1/Y=YAHOO/EXP=1257891544/L=/B=h24RNUPDhE0-/J=1257884344926356/K=K_FucmWAj3IP7b2f0nJ36A/A=5898843/R=0/SIG=11kkq36go/*http://advision.webevents.yahoo.com/parentingzone/ 11. http://groups.yahoo.com/;_ylc=X3oDMTJjZDBjZmNwBF9TAzk3MzU5NzE0BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEc2VjA2Z0cgRzbGsDZ2ZwBHN0aW1lAzEyNTc4ODQzNDQ- 12. mailto:repeater-builder-traditio...@yahoogroups.com?subject=change%20delivery%20format:%20Traditional 13. mailto:repeater-builder-dig...@yahoogroups.com?subject=email%20delivery:%20Digest 14. mailto:repeater-builder-unsubscr...@yahoogroups.com?subject=unsubscribe 15. http://docs.yahoo.com/info/terms/
