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Re: Looking for opinions

 

Thanks all!!! I am going to try the Shari until I get a separate Pi4b.? I am not going to need the 100's of connections.? Patrick, can you 'splain the sound card addition?? I really need to look at that for another repeater!!!? Links?
Re: Looking for opinions

 

开云体育

I would recommend separating hub from radio hardware.

The simpleusb usb driver, Supermon/Allmon/Allscan, etc. whatever you want to run on it, takes away from potential for max connections. That's why the W6EK repeater gets kind of choppy during really busy All Nodes Net sometimes. They're running all that stuff on the same hardware, and it gets a little starved for CPU resources, as it tries to handle a bunch of connections, as well as Supermon and a sound fob for the repeater. Even better if you can run Supermon (if you use that) somewhere other than the machine hosting any IAX2 connections at all. This is what we do. My system has a server that exists just to run Allmon2 (I prefer that for various reasons to Supermon), and it doesn't host any of the actual traffic. So even if the web server is busy doing all kinds of junk, it won't have any impact on other parts of the system.

For my network, Blind Hams, I am using a mixture of ASL and HamVoIP, where I have two Raspberry Pi's located in data centers for optimal tier routing (I have Gigabit symmetric fiber in my home, but it's still residential-class routing), one at a mmulti-gigabit residential fiber connection, and the rest on Linode VPSs. I hope to eventually eliminate the VPSs, at least for the U.S. west coast and Europe connections. I have a hub in Australia, but it gets very little use, so I'm not concerned much about that one.

Between all that, even without any load balancing, I can handle probably a good 300 or so connections across all the nodes without any jittering. That could be increased to approximately 423 connections with load balancing just across the three rPi4's on the system, not counting the VPSs, but I haven't have that kind of load on the system yet, so haven't implemented measures to accommodate for that. A single rPi4 not running simpleusb with load balancing enabled can handle about 141 connections before it bottlenecks, and maybe a few more with compromises.


73

N2DYI


On 5/4/2024 12:16 AM, nh6bf via groups.io wrote:

I have a Shari Pi VHF.? I also have a cloud node up on Vultr.com.? The cloud node is not doing too well and has losses if I get more that a 6 nodes on it.? Anyway, I am thinking about using the VHF Shari as a node and a hub, maybe less that a dozen other nodes on it.? Any opinions on how the Shari could handle that?? Does the hat take up significant resources???

de NH6FU

Re: Looking for opinions

 

The SHARI is not the problem.. there are nodes out are hubs with over 100 nodes and bridges connected to them. One such comes to mind, Blind Hams- ALLSTAR 50631X. X being 0 through I think 6.. I connect to 5 in Dallas..

Anyhow it's the horse power of the Raspberry Pi that determines how many it can handle.. I use Raspberry PI 2's in repeater service for over 6 years. I recall a RPI3 will handle 5-6 nodes at the same time, and RPI4's handle upwards over 50.. The exact numbers I don't recall and the sun is not up yet nor coffee made..

So getting back to your question, the answer lies in the version of RPI you are using.. I'm sure others will comment based on that.

Larry W8LM...
Looking for opinions

 

I have a Shari Pi VHF.? I also have a cloud node up on Vultr.com.? The cloud node is not doing too well and has losses if I get more that a 6 nodes on it.? Anyway, I am thinking about using the VHF Shari as a node and a hub, maybe less that a dozen other nodes on it.? Any opinions on how the Shari could handle that?? Does the hat take up significant resources???

de NH6FU
Creating Favorites in DVSwitch Mobile for Android

 

I did not see a topic on this subject. I noticed there is a Macros option which looks like you may be able to add one or two.

Is this the maximum list, or how to increase the number to say 5 or 6?

Thanks,

Rich H. W9ABE
Re: Quick question about "transmit a level/transmit b level"

 

Oh gotcha.. that answers my question perfectly, thank you !
Re: Quick question about "transmit a level/transmit b level"

 

Oh interesting.. Thanks for that Steve !?
Re: Quick question about "transmit a level/transmit b level"

 

If you wish to reduce power... and you're that intent on doing it for some reason.. like you're on the 20th floor in NYC... then an SMA 3db ( or more) attenuation can be used at the antenna.. 3dB would take the ERP to 200mW, (6dB to 100mW) 6dB would also reduce the receive sensitivity bay about 1S unit.

Not totally off topic...... but a further comment about those wishing to QRO their SHARI...

Saturday.. with a new Baofeng AR-5RM on my belt I got in the car and drove about 1/2 mile to help a friend. My SHARI sits in the ham shack on top of a 4 drawer file cabinet. My home is a log cabin on 25 acres. The Saturday morning net started up and I could hear the net even though my HT was on my belt down by the seat belt inside the car.. ?
With the SHARI at 400mW I have no problem hearing or using my shari anywhere on my 25 acres and beyond.. The Shari has a "stock" 2 inch antenna and the Baofeng has 6-7 inch antenna, So 1/2 mile with one antenna in a car is good. Once outside of the car the SHARI was Full Quieting.? Mind you my home is on the prarie ranch land in Kansas..

The AR-5RM is a new Baofeng, much improved. Has 999 channels,AIRBAND... and 222mhz.. plus a USB-C charge port on the battery. It has a FCC ID: and a pair of them on Amazon was $53 delivered to my door step..

Larry W8LM-
Re: Quick question about "transmit a level/transmit b level"

 

The RF power output of the SA818 module used in the SHARI products is about 1 watt on high power and 1/2 watt on low power.? This is selected by a jumper to ground conncted to a pin on the SA818.? We ground this pin in SHARI,? While the RF IC used in the SA818 has a way to lower power via a register setting, NiceRF has not implemented this capability in the firmware of the SA818 so power out can not be changed by software.

In SHARI. the 1/2 watt output of the SA818 is routed through a low pass filter which has about 1 dB insertion loss so the nominal output is about 400 mW.?

Steve - N8AR
Re: Quick question about "transmit a level/transmit b level"

 

开云体育

?

I was wondering if I can lower the power of my node?

?

Hmm, it is already putting out very low power… you could put the shortest rubber duck you can find on it, and limit it’s reach that way…

?

?

I'm assuming it's done via the sa818 programing in option transmit level, but what's the difference between transmit A level and? transmit B ?

I thought TXA and TXB were in SimpleUSB?

Anyway, they affect audio level coming from your node, not power output, and TXB won’t do anything.

?
Re: Quick question about "transmit a level/transmit b level"

 

开云体育

Greetings:

I'll let someone else more familiar with the radio module say something about power adjustment, but you can't do that through software. The TX A and TX B levels are for audio transmitted by the node. BTW, TX B isn't wired to anything on a SHARI, so you can ignore it.


On 4/30/2024 7:20 AM, Jordan via groups.io wrote:

Hi, Just a quick question.. I was wondering if I can lower the power of my node? I'm assuming it's done via the sa818 programing in option transmit level, but what's the difference between transmit A level and? transmit B ?

I apologize for my newb question but I couldn't find this information.

Quick question about "transmit a level/transmit b level"

 

Hi, Just a quick question.. I was wondering if I can lower the power of my node? I'm assuming it's done via the sa818 programing in option transmit level, but what's the difference between transmit A level and? transmit B ?

I apologize for my newb question but I couldn't find this information.
SA818 Filters Settings Not being retained.

 

My first visit here, so be gentle...

I bought some SA818 VHF modules on Aliexpress - Using a windows 11 box / terminal with software running in a terminal window - No problem programming the SA818 using a CH340 UART - BUT - I run into a problem with the Filters section.?

sa818 --port com3 version
SA818: INFO: Firmware version: V1.1

sa818 --port com7 filters --emphasis disable --highpass disable --lowpass disable
SA818: INFO: +DMOSETFILTER:0 filters [Pre/De]emphasis: disabled, high-pass: disabled, low-pass: disabled

Using sound modem and a waterfall display I can see the filters removed - even see 88.5 hz ctcss on receive - BUT - either power cycle or PTT causes the lo pass filter to be invoked and everything below 300 hz is blocked on RX until I reprogram the SA818.? The Freq info and band width, etc remains but the filter setting defaults back to having the low filter enabled.? I wanted to use this module to receive DMR signals - 20 hz to 6khz and with the 300 hz filter in place this wont work - neither will dsp ctcss decode work in ASL usb radio config

So, I am wondering if there is a later firmware flash (and how to do) for the SA818 Module ?? Thanks again, steve nu5d
Re: DTMF Code to shutdown Shari Pi when using a mobile hotspot

 

If there's a better choice, lay it on me! Of course, I have no need for autopatch anything so it may not matter...

Bob
KK6RQ?
Re: Shari Frequency

 

Thanks! No log file. We’ll just have to reprogram it.

On Apr 14, 2024, at 15:43, Patrick Perdue <borrisinabox@...> wrote:

?If your friend used a recent version of SA818-prog, and the system hasn't been changed or re-imaged since it was last programmed, you can simply run SA818-prog to read the last programmed parameters from /root/SA818.log.

If there is no file in /root/SA818.log, then the best you can do is program the radio again, or connect to a known active node and scan for it on another radio.

You can't read settings from the radio, only write to it, so there is no way to pull the parameters directly from the radio once set.

You can also do

cat /root/SA818.log

from bash, if it exists.

This is what my last programming looks like on one of my nodes.


[root@allstar50368 ~]# cat /root/SA818.log

Last values programed to SA818:
------------------------------------------------------
Channel Spacing: 1
Tx Frequency: 438.8000
Rx Frequency: 438.8000
Tx CTCSS code: 0014 Frequency: 107.2 Hz
Rx CTCSS code: 0014 Frequency: 107.2 Hz
CTCSS Reverse Burst: n
Squelch Value: 1
Volume Value: 6
PreEmphasis Enabled: y
High Pass Enabled: n
Low Pass Enabled: n
------------------------------------------------------
[root@allstar50368 ~]#

hth.

73

N2DYI


On 4/14/2024 4:23 AM, Luis D via groups.io wrote:
My friend forgot the frequency and tone squelch for his Shari pi hat. How do you find out what it is?
Re: Shari Frequency

 

If your friend used a recent version of SA818-prog, and the system hasn't been changed or re-imaged since it was last programmed, you can simply run SA818-prog to read the last programmed parameters from /root/SA818.log.

If there is no file in /root/SA818.log, then the best you can do is program the radio again, or connect to a known active node and scan for it on another radio.

You can't read settings from the radio, only write to it, so there is no way to pull the parameters directly from the radio once set.

You can also do

cat /root/SA818.log

from bash, if it exists.

This is what my last programming looks like on one of my nodes.


[root@allstar50368 ~]# cat /root/SA818.log

Last values programed to SA818:
------------------------------------------------------
???? Channel Spacing: 1
??????? Tx Frequency: 438.8000
??????? Rx Frequency: 438.8000
?????? Tx CTCSS code: 0014 Frequency: 107.2 Hz
?????? Rx CTCSS code: 0014 Frequency: 107.2 Hz
?CTCSS Reverse Burst: n
?????? Squelch Value: 1
??????? Volume Value: 6
?PreEmphasis Enabled: y
?? High Pass Enabled: n
??? Low Pass Enabled: n
------------------------------------------------------
[root@allstar50368 ~]#

hth.

73

N2DYI

On 4/14/2024 4:23 AM, Luis D via groups.io wrote:
My friend forgot the frequency and tone squelch for his Shari pi hat. How do you find out what it is?
Shari Frequency

 

My friend forgot the frequency and tone squelch for his Shari pi hat. How do you find out what it is?
Re: DTMF Code to shutdown Shari Pi when using a mobile hotspot

 

开云体育

*B1 is to shutdown the pi which is commented out for safety. just uncomment it.

; Autopatch must be configured to work
; Autopatch up
61=autopatchup,context=sip-outgoing,noct=0,farenddisconnect=1,dialtime=20000,quiet=0
; Autopatch down
0=autopatchdn

which is set aside for 6 command



On 4/13/2024 5:52 PM, Brad N8PC via groups.io wrote:

*6 commands are for Auto patch commands

On 4/13/2024 11:17 AM, Bob KK6RQ wrote:
I use that, as well as the command right next to it to reboot; however I modify it for my 12 key DTMF pad and use *6x (or other numbers not already assigned to another command).

Bob
KK6RQ
_._,_._,_
Re: HISTORY LOGS

 

ssh into your node and go to the following directory

/var/log/asterisk

filename is: messages

you can open it with nano or in any editor as it is a text file

On 4/12/2024 4:52 PM, James Hall wrote:
Is there a file in HamVOIP similar to this one in IRLP "/home/irlp/log/messages"? When I was first monitoring the bootups via hdmi I could see an error message "low voltage". I sure would like to see log history of dtmf, log ins, error codes etc. for the node.

Jim Wh7CD node 27373
Re: DTMF Code to shutdown Shari Pi when using a mobile hotspot

 

开云体育

*6 commands are for Auto patch commands

On 4/13/2024 11:17 AM, Bob KK6RQ wrote:

I use that, as well as the command right next to it to reboot; however I modify it for my 12 key DTMF pad and use *6x (or other numbers not already assigned to another command).

Bob
KK6RQ
_._,_._,_
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