Here is the method I use to install the radio module.??For reference, pin 1 of the module is in the upper left corner of the module in your picture.? Count clockwise from pin 1.? ?I put a small amount of solder on the first pad (pin 13) to the left of the output pad (pin 12, trace to FL1) in your picture.? I then place and hold the module in the desired alignment/position while I remelt the solder on the pad and press the module against the board. This solder joint holds the module in the correct position.? ?I then press down on the module in the opposite corner and solder the module at pad 1 (which is the opposite corner).? Finally, I solder all of the remaining pads and resolder pad 13 if required.
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Easy way to insure proper placement of the SA818 chip when soldering . 
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Hi Paul, I was able to power cycle my Allstar 10 times and out of those 10 reboots I was able to connect to my iPhone twice. This is sad?but normal for the new IOS. Apple made changes to the network?driver to support the new watches and airpods that has caused issues for ham radio. If you check the ham?forums?this problem is widespread.
When you do get a good connection the raspberry PI connects?/ disconnects / reconnects so allstar does not always read the IP aloud.
Things to check... No special characters?in the SSID (Cell phone name) or Password - make sure you use only letters and numbers!?
Make sure your cell phone is not named "Paul's iPhone" or "Paul's" as this will not?work in Linux
There are a few things to make the connection percentage go up. Make sure you're on the hotspot screen Make sure your phone is not connected to another wifi source ?
This problem is not limited to raspberry PI however they seem to have a bigger issue then other devices. If you have a TP-Link travel router, try programming that to log into your phone and plug that into your PI ethernet.
My club is using over 200 PI-STAR devices and those users with IOS devices had to abandon the idea of connecting via the iphone and went to cell hotspot until Apple fixes the issue.?
Darrell,?
Thanks for the reply. I really appreciate the help.?
I have tried 2 different iPhones and 1 Android (LG) smart phone...as well as 2 separate?home WiFi networks.?
The results - neither of the iPhones would connect to my SHARI. Doing a simple power restart of the SHARI concurred?that no IP address was spoken from the SHARI while on the iPhones. This is very different than the Android and home WiFi networks.?
I understand how to turn on/off the iPhone hotspots but the iPhone no longer allows a visual indication (with an IP address) that the SHARI is connected.?
Basically, I want to connect the SHARI (RPi) to my iPhone.?
Paul
W4END
Paul, I assume you want to have your raspberry PI login so you can use your allstar node portable?
First use option 7 and setup both your home and iphone wireless settings
When you leave the house you will most likely have to cycle power for the PI to look for the next?available?WIFI.?
The biggest?issue now is the new ISO will not send a SSID unless your on the hotspot screen (the one where you turn the hotspot on/off).
Steps: Turn on the hotspot in ISO - leave on hotspot screen Within 10 seconds turn on PI This should now connect - see green oval at top Once connected you can leave hotspot screen
read this link ==>?
Let me know if I can provide any additional?help
--
Darrell Black (517) 917-2226 GigaHacker@...73 de W8DSB "In God we trust, all others we monitor"
GMRS WRDE739
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Added a Receive Audio Output Jack
I wanted to connect an amp/speaker for good quality receive audio to my SHARI. I monitor various networks often. See my hookup in the files folder.
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I wanted to thank SHARI for a cool ASL hotspot. I group at the Yuma Hamfest was showing it off.
I have it on a Pi2 running WB6NIL's ASL img. (allstalink.org) Install went easy. I needed to change the freq on the SHARI. Downloaded the shari-pixx-prog and install python-serial.?
Works great
Thanks,
David?
KE6UPI
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Re: SHARI CW vs. Voice ID
Remove the semi-colon from in front of the CW ID and put one in front of the voice ID.? Restart the Asterisk Server (menu item 13)
; ID recording files must have extension gsm,ulaw,pcm,
; or wav. No file extension is used.
; All ID recording files should be sampled at 8KH
?
;idrecording=/etc/asterisk/local/node-id
; Main ID voice
idrecording=|iDE W4END/L
; Main ID CW
idtalkover=|iDE W4END/L
; ID when signal present
?
;idrecording=/etc/asterisk/local/node-id
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Hello all, I am trying to go back to using CW as an ID instead of Voice as an ID.? Can someone please walk me thru how to do that without having to reload the MicroSD card. From what I have read, and compared to my other nodes, it should already be transmitting CW for the ID....but it is definitely voice.? Below is the lines from rpt.conf line 220+
ID SETTINGS
; ID recording files must have extension gsm,ulaw,pcm,
; or wav. No file extension is used.
; All ID recording files should be sampled at 8KH
?
;idrecording=/etc/asterisk/local/node-id
; Main ID voice
;idrecording=|iDE W4END/L
; Main ID CW
;idtalkover=|iDE W4END/L
; ID when signal present
?
idrecording=/etc/asterisk/local/node-id
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My guess is after saving the edit to reload Asterisk or reboot the Pi. ?
-W4INT
Paul,
Glad you got it. Want to share with the class what you found?
-Pres W2PW
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Yes.? Please email us at kitsforhams@...?with your questions about our waiting list.
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Paul,
Glad you got it. Want to share with the class what you found?
-Pres W2PW
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Is it possible to know where one is on the list to purchase a Shari node? If so, how, or what does one do to obtain this information?
TIA
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I think I'm going to do the same. With the proliferation of wall warts and even larger supplies all switched now, and all the kinds of RF flying around in this crackerbox palace of an apartment, I probably need, or should have, them on just about everything connected with RF.
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Thanks Steve! Much appreciated.
I really need to order a bunch and put them on everything around
here.
On 5/4/2020 12:49 PM, Steve Matzura
wrote:
toggle quoted message
Show quoted text
Darn good question, Chris, blind or not. I know those who have
supposedly perfect (20/20) vision who stare at these things,
asking "how's a wire supposed to get in there?"
I have a couple of these kinds of choke sitting around. They
are cylindrical, with a hole in the center going from end to
enc. There's a hinge on one side and a clamp to keep the thing
shut and cylindrical on the other. A little finger pressure--OK,
sometimes a lot of finger pressure--and the thing opens like a
banana opens after you pull the peel down. When closed, it
usuall closes around the wire tightly enough to keep it in
place.
HTH
On 5/4/2020 12:01 PM, Chris Smart
wrote:
I'm blind so I have to ask... split core as in two halves
split down the middle, and you just pass the cable through the
hole?
On 5/4/2020 6:33 AM, N8AR wrote:
One of the
cores I mentioned isavailable from Mouser.
The split core is available from Digikey??
|
Darn good question, Chris, blind or not. I know those who have
supposedly perfect (20/20) vision who stare at these things,
asking "how's a wire supposed to get in there?"
I have a couple of these kinds of choke sitting around. They are
cylindrical, with a hole in the center going from end to enc.
There's a hinge on one side and a clamp to keep the thing shut and
cylindrical on the other. A little finger pressure--OK, sometimes
a lot of finger pressure--and the thing opens like a banana opens
after you pull the peel down. When closed, it usuall closes around
the wire tightly enough to keep it in place.
HTH
On 5/4/2020 12:01 PM, Chris Smart
wrote:
toggle quoted message
Show quoted text
I'm blind so I have to ask... split core as in two halves split
down the middle, and you just pass the cable through the hole?
On 5/4/2020 6:33 AM, N8AR wrote:
One of the cores
I mentioned isavailable from Mouser.
The split core is available from Digikey??
|
I'm blind so I have to ask... split core as in two halves split
down the middle, and you just pass the cable through the hole?
On 5/4/2020 6:33 AM, N8AR wrote:
toggle quoted message
Show quoted text
One of the cores I mentioned isavailable from Mouser.
The split core is available from Digikey??
|
One of the cores I mentioned isavailable from Mouser.
The split core is available from Digikey??
|
One of the wall warts I tested is an Inland (Bought at Microcenter).? It has a small core on it near the Pi.? It has the same problem.? The core is too small and in the wrong place for this problem.? It might have an effect at the wall wart switching frequency - not sure.
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I use a CanaKit 5Vdc? 2.5A Wall Wart power supply with my Shari and I have not noticed any hum! But it does have a ferrite filter core as part of the?
power supply cable near the end that plugs into my RPi. Not sure what the mix is of the core as it is enclosed as part of the cable.
Vince - NY5AR
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Thanks for this!
I need to buy some ferrite filters like you describe below.
What's the best source for a bunch of them cheap?? Amazon? eBay?
One of the online ham radio retailers?
Thanks again for helping to nail this down.
Chris
On 5/3/2020 10:39 PM, N8AR wrote:
toggle quoted message
Show quoted text
I have performed additional testing to better understand the buzz
phenomena.
I fabricated a current probe that measures the current on the
power supply cable and cabled it to an HP8901 modulation
analyzer.? The power supply cable was intentionally routed next to
the SHARI? antenna to produce a worst case situation. Pictures of
the setup have been added to the Files folder.? I found that with
no ferrite filter on the power supply the AM modulation was almost
20%.? Adding 1 Laird 28B1020-100 core (similar to mix 31) with 2
turns through it reduced the modulation to less than 0.5%
(essentially gone).? With the core installed, no buzz could be
located for any position of the receiving HT antenna.? I also
found that? curling my hand around the antenna and vary its
position was a good way to test the suppression as different hand
positions revealed buzzing when no ferrite was used.
I also tried a Laird split core, P/N 0431164181, with similar
results
I tested both VHF and UHF and found the buzzing phenomena was
worse at VHF than UHF.
I also verified that the same modulation situation occurred when I
transmitted with the HT (rather than listening) which is why
someone might tell you they hear buzzing on your audio.? With the
ferrite, the modulation also disappeared.
The bottom line is the buzzing on both transmit and receive is
being caused by the Pi power supply modulating the RF antenna
current coupled onto the Pi supply power cable.? It can be
eliminated with one ferrite core at the Pi power supply.? This
buzzing is not caused by SHARI.? Any node with a built-in radio or
the HT you are using to talk to your node can cause this to occur.
Steve - N8AR
|
Ferrites are our friends!? --
The views I present are that of my own and NOT of any organisation I may belong to.
73 de Simon, VK3XEM.
On Mon., 4 May 2020, 12:39 N8AR, < n8ar73@...> wrote: I have performed additional testing to better understand the buzz phenomena.
I fabricated a current probe that measures the current on the power supply cable and cabled it to an HP8901 modulation analyzer.? The power supply cable was intentionally routed next to the SHARI? antenna to produce a worst case situation. Pictures of the setup have been added to the Files folder.? I found that with no ferrite filter on the power supply the AM modulation was almost 20%.? Adding 1 Laird 28B1020-100 core (similar to mix 31) with 2 turns through it reduced the modulation to less than 0.5% (essentially gone).? With the core installed, no buzz could be located for any position of the receiving HT antenna.? I also found that? curling my hand around the antenna and vary its position was a good way to test the suppression as different hand positions revealed buzzing when no ferrite was used.
I also tried a Laird split core, P/N 0431164181, with similar results
I tested both VHF and UHF and found the buzzing phenomena was worse at VHF than UHF.
I also verified that the same modulation situation occurred when I transmitted with the HT (rather than listening) which is why someone might tell you they hear buzzing on your audio.? With the ferrite, the modulation also disappeared.
The bottom line is the buzzing on both transmit and receive is being caused by the Pi power supply modulating the RF antenna current coupled onto the Pi supply power cable.? It can be eliminated with one ferrite core at the Pi power supply.? This buzzing is not caused by SHARI.? Any node with a built-in radio or the HT you are using to talk to your node can cause this to occur.
Steve - N8AR
|
Steve-N8AR
Larry Macionski