[aprssig] Open Source/Commercial Use acceptable APRS Alternative?

Dana Myers k6jq at comcast.net
Mon Aug 7 17:34:18 EDT 2023

On 8/7/2023 2:06 PM, Dana Myers wrote:
> On 8/7/2023 5:33 AM, Greg Troxel wrote:
>> Receiving data on Part 15 LoRa and retransmitting it over Part 97 seems
>> against Part 97.  This is sort of funny; getting weather from your
>> outside sensor via Part 15 to yoru console, and then over Part 15 WiFi
>> to your computer, and then periodically creating APRS packets and
>> sending them over 2m is fine.  There's no ban on transmitting
>> information that has traversed another service, but rather "No station
>> shall retransmit programs or signals emanating from any type of radio
>> station other than an amateur station"  97.113(c).
> IANAL and haven't read the CFR in a long time but I don't think Part 15
> emitters count as 'radio stations', at least in Part 97. Now I'll have to look at definitions.

47 CFR 15.5(b) :

    (b) Operation of an intentional, unintentional, or incidental radiator is subject to the conditions that no harmful
    interference is caused and that interference must be accepted that may be caused by the operation of an authorized radio
    station, by another intentional or unintentional radiator, by industrial, scientific and medical (ISM) equipment, or by an
    incidental radiator.

47 CFR 15.3(o):

    (o) Intentional radiator.  A device that intentionally generates and emits radio frequency energy by radiation or induction.

Part 15 regulates intentional radiators - things that generate and emanate radio energy
are not radio *stations*. This non-interference rule distinguishes clearly between Part 15
radiators (such as a LoRaWAN tracker) and an "authorized radio station" (such as an amateur
radio station).

A LoRaWAN tracker is no different than the remote temperature sensor on a 915MHz Part 15
weather station.

Dana  K6JQ

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