Topband: WSPR and topband

[Joe Subich, W4TV]

On 4/26/2023 2:17 PM, Richard Karlquist wrote:
 > Does anyone know how the NCDXF beacons on 20 thru 10 meters in a dozen
 > plus countries are legal?

FCC rules do no apply outside the US (including 4U1UN).  I believe the
one or two NCDXF beacons in the US operate under a Special Temporary
Authorization.

73,

    ... Joe, W4TV

On 4/26/2023 2:17 PM, Richard Karlquist wrote:
> Does anyone know how the NCDXF beacons on 20 thru 10 meters in a dozen
> plus countries are legal?
> 
> Also, how did you arrive at 1836.6 kHz?  Why not say 1.990 MHz to avoid
> QRM.
> 
> ---
> Rick Karlquist
> N6RK
> 
> On 2023-04-26 09:22, TreeN6TR wrote:
> 
>> So - it has been brought to my attention that unattended beacons below 10
>> meter are not allowed (although I guess that would not apply to VLF?).
>>
>> More specifically:
>>
>> A beacon
>> <https://www.law.cornell.edu/definitions/index.php?width=840&height=800&iframe=true&def_id=40d9be5829ebfd04d54c322e5e44c122&term_occur=999&term_src=Title:47:Chapter:I:Subchapter:D:Part:97:Subpart:C:97.203>
>> may
>> be automatically controlled while it is transmitting on the 28.20-28.30
>> MHz, 50.06-50.08 MHz, 144.275-144.300 MHz, 222.05-222.06 MHz or
>> 432.300-432.400 MHz segments, or on the 33 cm and shorter wavelength bands.
>>
>> Therefore - this beacon will only be operated when it is "attended".
>>
>> Perhaps someone can define exactly what that means in the case of a WSPR
>> signal (or even FT8).
>>
>> Tree
>>
>> On Wed, Apr 26, 2023 at 8:30 AM TreeN6TR <treen6tr at gmail.com> wrote:
>>
>>> Hi All -
>>>
>>> I have recently purchased a WSPR transmitter that I will be putting on 160
>>> meters soon.  It will be running 200 mw (at least for now) and be connected
>>> to my TX antenna most of the time.
>>>
>>> I know many of you are more experienced at using this "mode" than I am -
>>> but wanted to help raise awareness of the benefits of having WSPR beacons
>>> out there (hope that isn't a non-PC word to associate with them).
>>>
>>> There is a database of reception reports that can be accessed to see what
>>> openings are created.
>>>
>>> I know a lot of people rely on FT8 for this purpose, but this unattended
>>> method of monitoring conditions has value as well.
>>>
>>> Look for K7RAT coming soon to 1836.6 kHz on the even minutes.
>>>
>>> 73 Tree N6TR