- App_rpt-users - lists.keekles.org

Allstar RTCM unit bandwidth usage
by Bradlington 15 Mar '17

15 Mar '17

Good day I am new to ALLSTAR and we have recently integrated Allstar RTCM unit into our clubs local repeater. We are using a 3G dongal for internet connectivity -through an ethernet bridge feeding out to both the DMR and Allstar RTCM units. The data usage has dramatically increased since the inclusion of ALLstar . Does anyone have an accurate table of data consumption for various duty cycles per day so we can see if this is normal or if there is another reason for presumed excessive data consumption . On average the DMR alone used 70 Meg per day - since the addition of allstar RTCM , combined it has gone up to approx 220 Meg /day. Kind regards Bradley Glen zs5bg

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Dial
by Ryan Gross 15 Mar '17

15 Mar '17

Hi, I have a RP2 running DIAL and works great tied into a Micor Base Station. The question I have is I want to set up some crons to runs macros at top of hour like ID and time. but the kicker is I am using main audio as primary and injecting aux audio this care PL direct into with Repeter builder rim or URI pin 23 Right as tone out. What I am looking is how to set up the hourly Id's not to transmit PL. and a way to setup Id's similar to the methods used on Scom 7330. Thus far I have not found a solution. Ryan n3ssl n3ssl(a)yahoo.com

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Can I "hook" app_rpt events?
by William Higgins 15 Mar '17

15 Mar '17

I may have overlooked this in the research I've done so far, but I thought I would ask here. Is there a way to "hook" an event in app_rpt? For example, I'd like to run a script every time my repeater ids. Is there a way to do that? Executing a shell script or hitting a web service would be ideal. I might also want to perform other actions based on other events that app_rpt performs. It seems like this might be a reasonable feature request if it doesn't already exist. Thanks in advance for any guidance y'all have on this. I'm still relatively new to AllStar Link and am still learning. Bill Higgins N0NOE KC0DBS Repeater on Node 44011 N0NOE Simplex on Node 43758

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Simulcasting with RTCM/voter
by Hayden Honeywood 14 Mar '17

14 Mar '17

Another interesting PDF which states 83uS at 1KHz - http://www.simulcastsolutions.com/userfiles/file/simulcastforums/technology…

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Simulcasting with RTCM/voter
by Hayden Honeywood 14 Mar '17

14 Mar '17

Really interesting thread so far. Tim I was getting those figures from an article I read here - http://urgentcomm.com/networks_and_systems/mag/designing_simulcast_networks… "Analog FM systems on 25 kHz channels typically can withstand two relatively strong, equal amplitude signals with up to 150 microseconds relative delay before speech is unintelligible, according to Garry C. Hess in *Land-Mobile Radio System Engineering"* I have used radio mobile quite a lot. It might be time to ascertain my coverage. The only gripe I have with Radio Mobile is that it overestimates at low band VHF by default. UHF coverages are pretty accurate in my opinion. I've also used Splat, and still use Splat to overlay onto Google Earth. Do you change the strong signal margin on one site in Radio Mobile to 0dB/20dB for the 10dB difference, then plot the two together? Hayden

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allstar on dial
by K7ILO 14 Mar '17

14 Mar '17

Hello gang. So I decided to switch over to dial from acid so that my system can stay being supported so I installed dial onto a PC based machine. All the articles I have read by doing a Google search says that allstar will start downloading and installing after a few seconds of dial installation. Well, mine hasn’t started in 2 days so is there a script somewhere that needs to be started? Im sure this question has popped up but I have forgotten or do not know how to retrieve messages from the archives. Could someone point me in the direction of getting allstar to download and install so that I can set my system back up. Thanks K7ILO Las Vegas, NV

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Simulcasting with RTCM/voter
by Hayden Honeywood 14 Mar '17

14 Mar '17

Hi All, Thanks for all on the list who have given me a hand with getting the RTCM/voter boards running. I currently have 1/3 of my system installed at the sites. It's as follows: A TX only site - running a VOTER board, latest "Chuck" firmware. 9.6MHz OCXO replacing the onboard crystal and a 10MHz OCXO to keep the transmitter stable all on 53MHz. On my bench at home I have an identical setup except with a receiver in addition. Both radios are the same, audio injected in the same spot. I've been testing various frequency offsets to avoid the cancelling of the signal due to the inherent propagation effects at 6 metres. I've been able to run my bench radio into a dummy load and place it so that another radio nearby connected to an external antenna is receiving them almost the same (i.e. overlap). Currently 1-2Hz sounds the best. I have been encoding tone, however there is a very audible hum, as if the CTCSS tone from each transmitter is not in phase. The tone is 91.5Hz. I've checked/readjusted deviation levels etc, also checked the 9.6MHz OCXO etc but I cannot seem to null it out. I've also tested the Simulcast Launch Delay.The main site is about 13 miles away, so I put a value of 330 in there to represent a delay of 66uS on the bench test radio. This makes a little bit of improvement, but not an overall huge improvement. Does anyone have an ideas that I've missed or more information on the usage of the Simulcast Launch delay? Hayden

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Simulcasting with RTCM/voter
by Hayden Honeywood 14 Mar '17

14 Mar '17

Thanks for the information Joe. The RTCM generates the CTCSS in the main audio path with an entry in voter.conf. There is no separate deviation adjustment on the board, you set a global level in that config file. OK on the delays between sites etc. I think I understand whats going on there. As I mentioned beforehand I think a lot of my issue is that the 2nd site radio is on the bench and the delay from the main site TX is causing distortion problems. I'm hoping to document a lot of the simulcast information on my blog in time. In answer to some of your points - 1) I've played with the offset mainly because at low band 50MHz due to the propagation effects, complete cancellations happen in overlap when both signals from the transmitters are approx the same. Whereas on UHF I believe this is not to much of an issue due to reflections, doppler etc. Only really an issue with fixed stations I believe. Offsetting by a few Hz I can hear the null move around, and cancellation is not so bad. 2) The exciters have been set the same - same model, same inputs etc. 3) Yes. The only differences may be is that the VCO of the units is modified to 50MHz from 70 by adding capacitance in various places. The alignment of both VCO's is the same however - set to 3V on a specific test point. 4) Yep all the same. I've used a CTCSS encoder input which is post pre-emphasis and limiting. Limiting is done by the RTCM. 5) As above - although I've noticed that the CTCSS's deviation on the bench test transmitter is about 50Hz low when aligning for a 1K = 3K deviation. I've tried turning up the TX level pot to equal it, but it still sounds the same. Hayden

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DTMF timing
by mca555＠mac.com 12 Mar '17

12 Mar '17

Hi all, I’m having an issue with certain portable radios where the DTMF tones seem to be ‘bouncing’, i.e. a single tone is decoded multiple times for one press. The simple answer is “Buy a better radio!”, but that’s way too easy. The question is: Is there a way to tell the DTMF decoder to require a digit to be held longer before decoding? Thanks! Mark

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Re: [App_rpt-users] RPi w/DIAL Repeater Stuck In Transmit Mode
by DuaneVT . 11 Mar '17

11 Mar '17

I just bought an RA-35 to replace my node's DIY fob. VERY NICE BUILD! I should have gone with the RA-35 when considering the futzing to wire the fob and several unuseable fobs with blob ICs. Duane KA1LM 42996

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