8

There's a few parts: §97.109 Station control. (d) When a station is being automatically controlled, the control operator need not be at the control point. Only stations specifically designated elsewhere in this part may be automatically controlled. Automatic control must cease upon notification by a District Director that the station is transmitting ...


5

Nothing. And this is a point of some controversy. In contests that allow electronic aids (like spotting networks and skimmers), the users are generally in a separate category. In some cases you go from Single Operator to Single Operator Unlimited, in other cases: Multi-Op Single transmitter. Other contests prohibit aids of any kind, including skimmers. ...


4

You might already know about this, but the Automatic Link Establishment (ALE) system has similar goals and might be what you're looking for.


4

You may be able to operate the device without consideration of your amateur radio status. CFR 47 Part 15.231 permits the low power use of 433 MHz without a license provided certain transmission repetition rates and maximum field strength rates are met. 433 MHz is commonly used by non-licensed home weather stations under part 15 provisions. If you need to ...


3

Digital signals are allowed, so long as they follow this FCC regulation: §97.221 Automatically controlled digital station. (a) This rule section does not apply to an auxiliary station, a beacon station, a repeater station, an earth station, a space station, or a space telecommand station. (b) A station may be automatically controlled while ...


3

Your automated system would require a PC of some kind to evaluate the beacon reception so SDR, especially cognitive radio, looks like the way to go. I'd suggest getting familiar with GNU Radio and Kali Linux as well as SDR-Radio and SoftRock to work out the band-and-frequency selection process, using the aforementioned beacons as a starting point. Once ...


2

This is the sort of task for which it is at least easiest to do outside of the model of GNU Radio Companion. That is, you would take the generated code and instead of executing it directly, modify it — or, perhaps, load it as a module. First of all, I recommend changing from WX GUI to QT GUI. WX support in GNU Radio Companion is deprecated, and the ...


2

Telemetry is explicitly allowed in §97.111. You must use an authorized "digital code", which probably means ASCII. And you must use a publicly documented technique. I don't see any specification in the manual of how this device works, but it's probably something simple like FSK, so no difficulty there. §97.309 RTTY and data emission codes. (a) ...


1

In the US, if you don't want to reinvent the wheel then your easiest solution would probably be APRS, more specifically the Citizen Weather Observer Program, which is a standardized system to send weather station data to the National Oceanic and Atmospheric Administration via APRS and/or the internet. Thousands of weather stations in North America already ...


1

Legal discussion To ISM or not to ISM, that is the question So, in Europe, 433 MHz is an ISM band – you could even operate a device there if you weren't a licensed Ham! That also includes the fact that if you choose to go for unlicensed operation rather than amateur licensed operation, the no-encryption rule, and the callsign rule (both of which frankly ...


1

If you don't have identification, then it's probably not a ham band item. The only exception to that rule is model aircraft controllers, and that is only for 6m, specific frequencies, and still doesn't apply. You probably want a Part 15 device. See the FCC rules, but basically you can make up to 5 without FCC approval (Conditions apply) for non-commercial ...


1

Afraid I have to disagree with the accepted answer and say that no, as a foundation license you are not allowed to do this. The key is in the "additional restrictions" in "schedule 2" of the license, as quoted by M6JNY. If you scroll to page 13 in that document, you'll see that no frequencies are allocated for beacon use for foundation license holders. As ...


1

My understanding of the rules is that your idea would be perfectly legal. According to the OFCOM terms (PDF file): 10(1) The Licensee may conduct Unattended Operation of Radio Equipment provided that any such operation is consistent with the terms of this Licence. Additional restrictions which apply to the Unattended Operation of Beacons are ...


1

Certainly unattended packet radio stations can operate without a control operator present. Not just digipeaters, but store-and-forward messaging systems and also the Packet BBS systems. Of course, the station needs to be sure to identify every 10 minutes. You will notice that on voice repeaters the ID is allowed to be done in Morse code AFSK.


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