Jump to content
  • 0

myGMRS Node Troubleshooting, Missing Heartbeat/Pulse



My node seems to have stopped working. I can still connect to the network and transmit to the network through the node but the node does not seem to be sending audio back to my radio. I noted the yellow "HB" led is no longer illuminating.  Any thoughts or ideas? I did reach out to N3XCC for his input.

Here is a link to the video of the RIM-Maxtrax board. 





I see the RIM will disable PTT when a 'heartbeat'/'pulse' is missing from the computer. It makes sense to me that the yellow LED on the RIM labeled "HB" is Heart Beat. Now I need to figure out why that has gone missing. When I look back at the Raspberry Pii itself I can see it is getting power as the red LED is stable. The green activity led weakly flashes about once every second.


2nd EDIT:

After spending hours today I went to clean the USB port with some alcohol and noted the heartbeat returned. It went away a few minutes later. I thought it was the USB connection but that tested good. I found that heart beat returns if alcohol is applied to the chip in the center of the board. It appears to be a hardware issue at this point.

Link to comment
Share on other sites

0 answers to this question

Recommended Posts

There have been no answers to this question yet

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Guidelines.