I am in a group in Sydney that uses 4 of these. We experence the same issue. We ended up fitting a timer that turns the power on/off. We set the time to do this every Tue at 2AM. If they happen to go off air during the week then the timer will revive them on Tues at 2AM. Yes, its an annnnoying porblem but the timer does work as a good work around. We are suspicious of RF getting into them that causes the hang up to occur. Seems to occur in the 2-3 month time period but we can see no pattern to it.

Allen and Byron at Byonics are aware of the issue.

This is the timer we use:
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Compton
VK2HRX
Sydney, Australia

About the only 3 'internal' things that would provide no audio are:

Hello. I have two MT4BB units being used as low-current-draw digis on mountain tops. I am having an issue with them working for a few weeks/months/etc then falling off the the face of the earth. We know they have power as they're on the same power source as the VHF repeaters that are up there working fine. We have no reboot capability, at least not remotely, so I am wondering if anyone knows of an issue that would cause them to just lock up/halt without reason? It's infuriating as we picked them for their all-in-one design and simplicity. Now I am questioning if there is maybe something else we should be using. Anyone able to suggest why this might be happening or have any similar experiences?

Has it been powered down for a long time?

Try resetting the TT4 by going back in with your PC and check the settings, mine did this once and going back in, re-entering my settings and powering back up, fixed my issue.

73,
Danny NF4J

Sent using the mobile mail app

Used to work, but now....
Using CALIBRATE get a red/TX light, but no sound heard when monitoring with another radio, no matter what setting.
Using MONITOR, no sound heard no matter what setting.
I have an idea what might be wrong, but will withhold that idea from here until others offer suggestions, to see if i am thinking the same.

There's an error, there, its a 30 mile or so gap between digis where nothing is heard.

Hi Mike! Very good to hear from you. The old email is still good but I'll message you the new one that I actually use.

What I've had to do down here is use the TT4 as a digi only on a Yaesu 2980 and use the TT3 for the weather into an 02AT on low power into a dummy load which the TT4 digi hears just fine. My internet here can be iffy and the digis around the area couldn't hear me from the house at all. None of the mobiles passing through are heard either. So there's a 40+ mile wide space between digis with me being right in the middle. The Weather station was not hearable by the existing digis even with a decent antenna but I had a good packet signal from both. My little APRS Yaesu HT on the big antenna could decode packets coming from one of the digis no with some skipped packets but it couldn't hear the Yaesu HT.? I picked up a Yaesu 2980 and hooked it up to the TT4 and I'm using that as the digi at about 30 watts on the meter. The TT4/2980 digi has filled in about a 80 mile gap between digis and other digis hear it ok. The Igate is one of those cheap receive only Chinese Igate units connected to my router via a lan cable. The Igate has worked with no issues for about 3 years. There is no computer connected, I'd have to be here much more often to justify installing one. I don't necessarily need the Igate now but I've experimented with and without and things seem to work better with it.?

What started the whole thing was I found that the original 02AT was totally deaf, just squelch noise. The deep cycle battery was only holding 11 volts after 5 years and i didn't want to buy another. As you know, I'm totally off grid and the weather station was on its own single solar panel and battery separate from the house. I been wanting to move the weather station from its old location behind the house and into the garage so I had to move everything including the antenna. The system has been there working for close to 5 years. There was a digi that could hear the weather station about 10 miles from the house when i originally installed it all but the digi just disappeared from the map.

I will send you the new email. Text me when you send something, I don't really check that email very often either.

Tim/KJ7AZ

Hi all,

My name is Geoffrey, callsigns F4FXL and KC3FRA, currently living in France.
I own 3 TT4 and despite being a TT4 user for quite a while, I am new to the group. John KB7JJG told me about this group after I helped him troubleshoot putting a Bluetooth module in his TT4. He told me that some people have been struggling with similar projects thus I thought it might be useful to post a link to all of my TT4 and .

73
Geoffrey F4FXL / KC3FRA

Your request is of an "administrative" type.

Please do not post to the Group!

Requests of an administrative nature are to be directed to the Group Owner directly at:

[email protected]

Thanks,

Joe, N2QOJ - Group Owner

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W4GCW

this did not work. TT4 works great as a digi but no luck at all on PEET weather. Going to do it the easy way. I'll use the TT4 for the digi and the TT3 for weather. Seems to be the only way. If someone comes up with a way to make the Peet and TT4 work properly let us know.

Thanks
KJ7AZ

I'm agreeing on packet mode. I'll try that later today. Cross your fingers, knock on wood, throw a penny over your shoulder.

KJ7AZ

开云体育

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73, Arnie, N1BAC

Here is something I noticed which may or may not be of use. This concerns Abaud and Bbaud. Setting Abaud and Bbaud to 2400 causes the TT4 unit to transmit a continuous string of hexadecimal weather packets. Even though the TNC is set to 2400 you still need to use 19200 to log into it TeraTerm. I'm assuming that's the USB cables doing BUT..... Logging into the TT3 using the same cable requires 2400 baud. Checking the Abaud and Bbaud after logging into the TT4 still shows both set to 2400. What I'm wondering is if there may be a flaw of some kind that causes the TT4 to switch baud rates internally without changing the command. The Peet equipment sends data at 2400 baud. Maybe the TT4 just isn't on the right baud rate or bit rate. 2400, 8, 1 null... Finally, the Peet weather stations have a packet mode. I might take a try and see if something can be done with that. Rather than sending data every second it sends every 5 minutes. Packet mode is a longer packet but who knows, might get lucky.

Had to surrender and put the WXTrack back online. I had it working great as a digi but it just wont function for WX with the Peet. I'll keep watching to see if anyone gets lucky or maybe a firmware update or something.

OK, Thank You. I got the DIGI up and running without issue. May have to just put the TT3 back online because the weather is more important. Will keep working with it here. Thanks again.