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See attached. Really not that complicated to solder a few 1/8W axials and a TO92 to make an interface. I think I sketched out your board correctly -- L1 holds relay on (and is the signal you want to

Whoops sent that too fast forgot the pictures. And the rest of my message. N 1 has the astron 12amp power supply on it, N2 has the the solar battery bank on it. And the other side goes to the tiny

Hi Rob, thanks for looking into this. The stuff with mosfets and the like is over my head. It looks like it is the model c according to the relay? on it. There are 6 wire connections on it labeled

I have driven TT bank pins with a (10K or so) pullup from bank input pin to TT vdd and an open-drain mosfet to pull it down (source is at gnd). I used BSN20 (sot23) but a decent thruhole part would be

The relay listed (SLA-12VDC-SL-C) as 3 variations which appear to be SPST Normally Open (N/O) for model -A, SPST Normally Closed (N/C) for model -B,?or SPDT (switch between N/C and N/O) for model -C.

I am not familiar with the device you site, and I ddin't see a schematic or anything on the wiring - especially the relay.It looks like it was designed for A/C and using a DPDT relay to switch between

So I know this is an old topic but I've finally got my tt4 on a standalone battery that automatically switches when mains power is lost. So my use case for banks is to have both banks exactly the same

Thank you for your quick response Allen. ?I do not have an issue with my reception on my MTT4B. ?I had gotten the preamp to play with and was looking to understand it’s limits before I ruined

Paul, We built a few for repeater projects and put them up on the Byonics webstore. Very few sold and we dropped it. ( I have built a few on special request when parts were available) You can see the

Kim, Where did you get a Byonics pre amp? I do not see one on their website. Paul -----------------------------------------From: "k1m" To: [email protected] Cc: Sent: Sunday July 3 2022 10:36:55AM

Kim, The Byonics Preamplifier is for receivers only. Transmitting through it will smoke the preamp and is likely to kill your MTT4B's power amplifier? too. ( Which is to say, "No!" Its a bad idea!)

I have a byonics preamp 1.? I have a couple questions.? 1:? Can it be used with my MTT4B, i.e. does it hurt the preamp to have a transmitting signal from my MTT4B go through the preamp or is it

It looks like you have the configuration program. First makes ure you only have 1 app running - make sure TeraTerm is closed. Us the Configuration app to do the following: Read Config Save Setting

Did you pick up the TT4 at a ham fest? It appears to me that the chip was used.? Type "Restore" at the prompt and see if it resets to the default settings. The setup your terminal program to capture

Hello, good morning, it took me a while to respond to do several tests, and I sent some images. I am connected to the tiny track with RS232 pins 2-3-5 with a null cable, I can read it and also load

I think you are just not identifying the position report.? It appears your transmitting in the Mic-E format (or maybe APRS compressed).? Those formats are not 'human readable'.? You can use aprs.fi

Whala!? I made the changes you suggested.? I changed the TT4 MYCALL from AB9NN-9 to a more apropriate AB9NN-10.? I also saw that the MONITOR showed that I was over driving the TT4.? When I turned

Simple rule of APRS device configuration:? Every device should have a unique -SSID to avoid confusion when debugging issues. If your mobile is AB9NN-9, then your TT4 needs to be something

Pretty sure those AB9NN's are comming off of the TT4 attached to my base station and computer.? I know because I have seen them when my mobile was not active.? Also the Yeasu FTM400-XDR has WIDE 2-1

According to the trace you included below, you most certainly ARE receiving from AB9NN-9, but it seems to only be transmitting status reports and telemetry.? Are you sure it has a GPS fix? And why is