Hi Phil: Here's what I have so far in the screenshot. I don't have GPS lock from indoors so some of the fields aren't populated. I was able to set and get a callsign as a test. Here are some observations: 1. The OTS command should be included in the web table - this is necessary for beacons to set a timeslot. 2. I'm not seeing a return for MVC with the Pico. 3. The code you already wrote for graphically showing GPS status, might be handy to put on this page as well - it's nice for adjusting the position of the unit if it's inside, to optimize reception. Tomorrow I'll install chrome on my laptop and take the unit outside to se what other fields get populated. Cheers, Steve NU7B

Looks outstanding Phil - and a UI improvement over the barebones serial monitor of an IDE. I'm doing some outdoor testing of the pico right now, but I'll have a look at this in the next day or so.

Harry, that looks well worth a visit. If I am in Sweden, that will be on my itinerary. My wife and I have visited Italy several times and I've been to some of the technology museums. For those that are radio specific, there is the Museo della Radio in Verona. It has a good collection of hardware but it resembled a warehouse and the exhibits needed some love. I really liked the Museum of Electrical Technology at the Univ. Pavia, about 40 km S of Milan. It covered the period between the Voltaic Pile to almost present-day. There's a special section on amateur and military radio, and I also liked the exhibits on transoceanic telegraphy and multiplexing. Some photos from Pavia: Early spark transmitter and coherer-type receiver (I don't know the origin of this model RX.) Geloso RX - This was a manufacturer in Milan up to the early 1970's SAIT wide-range RX Military DF RX (1943) Gibson Girl distress transmitter, 1944 Enigma cryptography engine

Thanks Donald: Thanks for the site info. A few years ago I had a dedicated WSPR station and tracked a few of the earlier revs of the balloon-borne WSPR beacons - I could usually hear the 20m ones if they were in single-hop range - and they were 10mW. My first flight will probably be the Zachtek. I have both the Chinese and a couple of Orbs 32" balloons coming in. Only thing I haven't figured out yet is a source of industrial-grade helium. I'll contact some of the places in the city -ideally I'd like to get a mid-sized 40 cu ft cylinder and get it refilled every so often. Amazon sells nozzles that fit into the standard cylinder thread. But even an empty cylinder costs >$150 😒, and I'm assuming it should have a DOT certification or the refillers won't handle it. I imagine I would have a problem getting a tank filled with Hydrogen, and electrolysis is impractical for the amount of H2 needed.

Donald: I'm new to the balloon beacons. What did you do for reporting on these pico TX's? Which tracking website aggregated the data - do Zachtek users only use LU7AA? Does the Zacktek pico TX have a temperature sensor? Steve NU7B