[arm-allstar] RPI with 3 FOBs

[Roger Coudé]

I am not sure, but if the problem is related to usb capabilities, we should count in terms of audio streams.As an example, our sites with 3 nodes are composed of two repeaters (duplex=2) and one link tranceiver (duplex=0)So, there is a possibility of 5 different audio streams at a given time running in the usb system, not counting the ethernet.If you have 3 simplex radios, you have a maximum of 3 audio streams.Is that a good reasoning?Roger



      De : Jack Koehler 2 <jckoehler2 at gmail.com>
 À : 'Roger Coudé' <ve2dbe at yahoo.ca> 
 Envoyé le : jeudi 13 Septembre 2018 9h40
 Objet : RE: [arm-allstar] RPI with 3 FOBs
   
#yiv4626567558 #yiv4626567558 -- _filtered #yiv4626567558 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv4626567558 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv4626567558 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv4626567558 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv4626567558 #yiv4626567558 p.yiv4626567558MsoNormal, #yiv4626567558 li.yiv4626567558MsoNormal, #yiv4626567558 div.yiv4626567558MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;font-family:New;}#yiv4626567558 a:link, #yiv4626567558 span.yiv4626567558MsoHyperlink {color:blue;text-decoration:underline;}#yiv4626567558 a:visited, #yiv4626567558 span.yiv4626567558MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv4626567558 span.yiv4626567558EmailStyle17 {color:#1F497D;}#yiv4626567558 .yiv4626567558MsoChpDefault {font-size:10.0pt;} _filtered #yiv4626567558 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv4626567558 div.yiv4626567558WordSection1 {}#yiv4626567558 Simplex only Roger.  From: Roger Coudé [mailto:ve2dbe at yahoo.ca] 
Sent: Thursday, September 13, 2018 7:36 AM
To: Jack Koehler 2
Subject: Re: [arm-allstar] RPI with 3 FOBs  
Jack,Are they full duplex or simplex nodes?73Roger  De : Jack Koehler 2 <jckoehler2 at gmail.com>
À : 'ARM Allstar' <arm-allstar at hamvoip.org> 
Cc : 'Roger Coudé' <ve2dbe at yahoo.ca>
Envoyé le : mercredi 12 Septembre 2018 11h00
Objet : RE: [arm-allstar] RPI with 3 FOBs  Roger,
I run a RPi3b with 4 fobs that control 4 Alincos driven with 2 radioless mic RPis.
Indeed had many troubles initially tracked down to power supply and cables issues.
Switched to a 5A, 5V clean switcher and short 18Ga power interconnect wiring solved the issues I had.
The Pis are very noisy devices as the current draw swings fluctuates considerably.
Jack  K3OYH


-----Original Message-----
From: ARM-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf Of " Roger Coudé via ARM-allstar"
Sent: Wednesday, September 12, 2018 9:05 AM
To: ARM Allstar
Cc: Roger Coudé
Subject: [arm-allstar] RPI with 3 FOBs

Our network uses 22 Raspberry PI spread all over the province of Québec.
11 RPIs with 1 radio
7 RPIs with 2 radios
3 RPIs with 3 radios

At locations where we have 3 sound cards per RPI, we experienced a lot of trouble (computer frozen, very slow ethernet, corrupted SD, missing sound card in LSUSB list, etc)
Those systems are running ok for a few days, but then the SSH begin to be very slow, and after a few hours the repeater freezes.
Most of the time, the systems reset by itself around midnight (Strange because I have not programmed it for that).
After swapping RPIs, power supply, sound cards, we always get an instable situation.
We had to climb mountains many times, sometimes just to power cycle a jammed RPI :(

We plan to install a second RPI at those locations in order to never have more than 2 sound cards per RPI.

Has anybody encountered the same situation, have a solution for that…

73
Roger VE2DBE 
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