May 2010 - App_rpt-users - lists.keekles.org

Re: [App_rpt-users] Noise Problem with URI
by Ken 04 May '10

04 May '10

I would be curious to know what level you run the tx output at ? ? I put an extra pot inside my exciter,?at the audio input, so that I could?run the txmixer (or whatever it is called) at around 500 - half of full scale. ? I had a noise problem on the CTCSS input of the Hantronics, as well, when I added the separate PL signal later on. .? That is because?the Hamtronics CTCSS input?is *very* low level and high impedance. In that case, I just put a 47 ohm resistor at the exciter input.??The URI has no trouble driving into this low-Z and it killed that particular noise. ? =====? ? I get one more noise that I cannot figure out though ... at the end of a users transmission there is kind of a low-pitched "glug-glug" noise before the courtesy beep - seems like some sort of artifact similar to a previous version that would not play disconnect messages - but would still make some sort of noise... ? Ken

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Note: Be sure to delete the attachment when replying to this
by hwstar＠rodgers.sdcoxmail.com 04 May '10

04 May '10

Please delete the attachement when replying to this thread. The limit is 200K after which your message will be rejected. Steve The asterisk computer is powered by a local AC outlet and the DC supply shares the same AC circuit. The AC and DC grounds are bonded. The DC supply also floats about 650 amp hours of battery back up. Even with all the batteries, I never had any luck using a inverter or a UPS tied to the DC buss. I thought it would be nice to power the windows based echo link computer from a computer grade UPS (or inverter) that uses the main DC supply with the batteries. But it introduces to much noise into the system that seems to only shows up on the UHF machines. So I have to have battery back up for the PC's separate of the system. Has anyone ever tried a "Car Computer" case that is designed to run off of 12 volts DC? I should have some time Wednesday night to try all of the suggestions, Thanks again. I will keep everyone posted. 73's Mike / KB8WLW 145.410 MHz PL 110.9 224.480 MHz PL 141.3 442.225 MHz PL 131.8 442.450 MHz PL 131.8 927.6125 MHz PL 131.8 Echo Link Node # 146520 This is a KB8RST Sponsored System www.kb8wlw.com kb8wlw(a)me.com _______________________________________________ App_rpt-users mailing list App_rpt-users(a)qrvc.com http://qrvc.com/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users(a)qrvc.com http://qrvc.com/mailman/listinfo/app_rpt-users

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Noise Problem with URI and Voter Comment
by MICHAEL SMITH 04 May '10

04 May '10

Sorry guys I just realized when I was hitting reply, I was replying directly to the individual. I would guess proper etiquette would be to email the group. Or at least CC the group. Thanks for all of the suggestions, I will try adding in a resistor or a voltage divider. I will have to check to see if I have a 1:1 transformer laying around. And yes the "RADIO TUNE TXVOICE" was on the far low side. I will also double check to see if the monitor is creating the noise by turning it off. I thought the same thing (regarding local HT noise) and hooked up the audio input leads to the audio path and seen this (hopefully I can attach a picture). I also had someone off site confirm they heard the noise. I did not think about trying to figure out the frequency. The asterisk computer is powered by a local AC outlet and the DC supply shares the same AC circuit. The AC and DC grounds are bonded. The DC supply also floats about 650 amp hours of battery back up. Even with all the batteries, I never had any luck using a inverter or a UPS tied to the DC buss. I thought it would be nice to power the windows based echo link computer from a computer grade UPS (or inverter) that uses the main DC supply with the batteries. But it introduces to much noise into the system that seems to only shows up on the UHF machines. So I have to have battery back up for the PC's separate of the system. Has anyone ever tried a "Car Computer" case that is designed to run off of 12 volts DC? I should have some time Wednesday night to try all of the suggestions, Thanks again. I will keep everyone posted. 73's Mike / KB8WLW 145.410 MHz PL 110.9 224.480 MHz PL 141.3 442.225 MHz PL 131.8 442.450 MHz PL 131.8 927.6125 MHz PL 131.8 Echo Link Node # 146520 This is a KB8RST Sponsored System www.kb8wlw.com kb8wlw(a)me.com

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Re: [App_rpt-users] Noise Problem with URI and Voter Comment
by Jim Duuuude 04 May '10

04 May '10

All I know is that my cheap poopy monitor is NOTORIOUS for causing noise on transmit using a URI and a relatively high input impedance audio input to the transmitter. Sometimes, this can be corrected by putting a 1k resistor across the drive to the transmitter (the URI can easily handle that low of an impedance) From: kb8wlw(a)me.com Subject: Re: [App_rpt-users] Noise Problem with URI and Voter Comment Date: Tue, 4 May 2010 10:01:37 -0400 To: telesistant(a)hotmail.com I thought I tried that, but will try again later today. I have used two different monitors, CRT and LCD. Mike / KB8WLW kb8wlw(a)me.com On May 4, 2010, at 9:00 AM, Jim Duuuude wrote:turn off the monitor.. does the noise go away?? > From: kb8wlw(a)me.com > Date: Tue, 4 May 2010 08:41:06 -0400 > To: app_rpt-users(a)qrvc.com > Subject: [App_rpt-users] Noise Problem with URI and Voter Comment > > I would love to see the ability to vote sites with the app_rpt software. After some side discussion with a fellow lister, I understand this would be very difficult to implement. Is there another alternative to time based GPS interface? I know it would not be "true" voting, but may be helpful in some cases. Would it be possible send time data to get the signals close and then select the receiver based on receiver signal strength? > > Now for my real question. I have looked through the archives and did not see anything, but I am suffering a noise problem. Ok I know what your thinking, it must be a ground loop. But I do not believe it is and I tried grounding everything. Let me give some history. I first setup Asterisk on a laptop and connected to a 900 MHz GE net station (again, thanks Doug for the help putting it on the air). Because the oscillator is always hot, you can here a carrier locally with an HT. Immediately I heard a high frequency whine that changed with screen changes on the computer. I tried three different computers and two other repeaters, a 440 Mastr II Station and home brew UHF Hamtronics. All of the configurations had the same noise. I even tried isolating some equipment offsite. During some trouble shooting, I noticed something that I thought was strange. I had the transmitter locked on the air by grounding the PPT line and when I stopped Asterisk by sending a "astdn.sh", th > e noise stops. > > The noise is only present when asterisk is running. The only thing in common is me and the URI. Any suggestions? > > Thanks, > Mike / KB8WLW > 145.410 MHz PL 110.9 > 224.480 MHz PL 141.3 > 442.225 MHz PL 131.8 > 442.450 MHz PL 131.8 > 927.6125 MHz PL 131.8 > Echo Link Node # 146520 > This is a KB8RST Sponsored System > www.kb8wlw.com > kb8wlw(a)me.com > > > > > _______________________________________________ > App_rpt-users mailing list > App_rpt-users(a)qrvc.com > http://qrvc.com/mailman/listinfo/app_rpt-users

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Noise Problem with URI and Voter Comment
by MICHAEL SMITH 04 May '10

04 May '10

I would love to see the ability to vote sites with the app_rpt software. After some side discussion with a fellow lister, I understand this would be very difficult to implement. Is there another alternative to time based GPS interface? I know it would not be "true" voting, but may be helpful in some cases. Would it be possible send time data to get the signals close and then select the receiver based on receiver signal strength? Now for my real question. I have looked through the archives and did not see anything, but I am suffering a noise problem. Ok I know what your thinking, it must be a ground loop. But I do not believe it is and I tried grounding everything. Let me give some history. I first setup Asterisk on a laptop and connected to a 900 MHz GE net station (again, thanks Doug for the help putting it on the air). Because the oscillator is always hot, you can here a carrier locally with an HT. Immediately I heard a high frequency whine that changed with screen changes on the computer. I tried three different computers and two other repeaters, a 440 Mastr II Station and home brew UHF Hamtronics. All of the configurations had the same noise. I even tried isolating some equipment offsite. During some trouble shooting, I noticed something that I thought was strange. I had the transmitter locked on the air by grounding the PPT line and when I stopped Asterisk by sending a "astdn.sh", the noise stops. The noise is only present when asterisk is running. The only thing in common is me and the URI. Any suggestions? Thanks, Mike / KB8WLW 145.410 MHz PL 110.9 224.480 MHz PL 141.3 442.225 MHz PL 131.8 442.450 MHz PL 131.8 927.6125 MHz PL 131.8 Echo Link Node # 146520 This is a KB8RST Sponsored System www.kb8wlw.com kb8wlw(a)me.com

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motorola t1504 duplexers
by Jim Duuuude 03 May '10

03 May '10

Does anyone have a good source of Motorola T1504 (or even T1507) UHF duplexers (in good working and non-rusted shape). I am finally out of good working ones, and the supply of them in ebay has seemed to dry out. Thanks!!! JIM WB6NIL

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Screen Saver
by David Powell-Williams 03 May '10

03 May '10

>From the Linux command prompt: setterm -blank 0 73, Dave VE7MQ.

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Disabling connect/disconnect announcement.
by Neil Addis (WA5JXY) 03 May '10

03 May '10

Ok, I have seen some discussion concerning connect/disconnect announcements, but most of it was concerning Echolink/IRLP. Don't know if this has been discussed before, but what I would like to do, is turn off node connect/disconnect announcements. It would be great to do it "selectively" (i.e macro or system command) I want all other announcements to work (i.e. *7, *81, etc) Reason is, if I have several nodes (right now 6) connected as perm links, it takes forever to "say" they are connected or disconnected when I do a site normal, etc. Beeps are ok.... Ideas? Thanks, Neil

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Screen Saver
by Neil Addis (WA5JXY) 03 May '10

03 May '10

I would like to disable the screen saver mode in CentOS/asterisk/app_rpt. I made sure the BIOS power saving is off, but the screen still blanks. I looked around in CentOS but didn't find where it might be set. Ideas? Thanks, Neil

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Re: [App_rpt-users] App_rpt-users Digest, Vol 15, Issue 2
by Neil Addis (WA5JXY) 03 May '10

03 May '10

On Sun, May 2, 2010 at 3:44 PM, <app_rpt-users-request(a)qrvc.com> wrote: > Send App_rpt-users mailing list submissions to > app_rpt-users(a)qrvc.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://qrvc.com/mailman/listinfo/app_rpt-users > or, via email, send a message with subject or body 'help' to > app_rpt-users-request(a)qrvc.com > > You can reach the person managing the list at > app_rpt-users-owner(a)qrvc.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of App_rpt-users digest..." > > > Today's Topics: > > 1. Re: Re Iax_Rpt on Windows 64 bit (Jim Duuuude) > 2. Re: App_rpt-users Digest, Vol 15, Issue 1 (Neil Addis (WA5JXY)) > 3. Re: Re Iax_Rpt on Windows 64 bit (Steve Gladden) > 4. Iax_Rpt on Windows (Ken) > 5. Re: Iax_Rpt on Windows (Bob Brown - W?NQX) > 6. Re: Re Iax_Rpt on Windows 64 bit (Tony Langdon, VK3JED) > 7. Re: Re Iax_Rpt on Windows 64 bit (Steve Gladden) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 2 May 2010 09:43:04 -0700 > From: Jim Duuuude <telesistant(a)hotmail.com> > Subject: Re: [App_rpt-users] Re Iax_Rpt on Windows 64 bit > To: <g4rky(a)yahoo.co.uk>, app_rpt mailing list <app_rpt-users(a)qrvc.com> > Message-ID: <BAY119-W414B3DA8F06D1D29737AD7B1F10(a)phx.gbl> > Content-Type: text/plain; charset="iso-8859-1" > > > "They" (who in the heck are "they", anyway??) say that its *supposed* > to work under Linux, but I do not know that from personal experience. > > JIM "anti-gui" DIXON, WB6NIL > > > Date: Sun, 2 May 2010 12:46:06 +0100 > From: g4rky(a)yahoo.co.uk > To: App_rpt-users(a)qrvc.com > Subject: Re: [App_rpt-users] Re Iax_Rpt on Windows 64 bit > > also, > anyone know of a Linux version of IAX_rpt? > I tried using it under wine on Ubunutu but cant get any audio in/out.... > 73, > Matt > > On 2 May 2010 12:28, REDBUTTON_CTRL <jrorke(a)cogeco.ca> wrote: > > Hi, Anyone know if IAX_Rpt works on windows 7 64 bit? > > > > Thanks, > > Jon VA3RQ > > _______________________________________________ > > App_rpt-users mailing list > > App_rpt-users(a)qrvc.com > > http://qrvc.com/mailman/listinfo/app_rpt-users > > > >

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