1800-1810 recommendation is from ARRL. Not regulation, just recommendation.
RTTY in this segment is very rare and almost all I have ever heard is the
centennial W1AW/portables. Many but not all W1AW/portable activations who
do 160M RTTY are sticking to the recommendation. Also in 1800-1810 you will
find some domestic CW. http://www.arrl.org/band-plan
Most EU entities have restrictions and aren't allowed below 1810.
There certainly is some multi-tone digital mode I hear a lot around
1835-1840, maybe JT65.
Tim N3QE
On Thu, Dec 4, 2014 at 6:42 AM, KE1F Lou <lmecseri@cfl.rr.com> wrote:
> The reason I am asking that an experienced operator told me that RTTY mode
> is
> restricted bellow 1.810Mc
>
> There is no FCC rule and I can't find any "recommendation" such as the DX
> window
> anyplace.
>
> I am just wondering about the source of this 1.810 comment.
>
> 73 Lou KE1F
>
>
> On 12/3/2014 9:28 PM, Tim Shoppa wrote:
>
>> Are you asking because of the upcoming TARA RTTY Melee that seems to
>> include 160M?
>>
>> Many band plans (e.g. ARRL's) show RTTY concentrating in 1.80-1.81.
>>
>> I have 15 RTTY 160M QSO's in my log almost all from W1AW/portables this
>> year. They tend to cluster in 1.805-1.810 and 1.840-1.845. But with ARRL
>> 160M going on in same weekend as TARA RTTY Melee, and how the entire
>> bottom
>> 50-80 kc of 160M will be occupied for sure, those normally free spots will
>> be in high demand by CW contesters.
>>
>> Tim N3QE
>>
>> On Wed, Dec 3, 2014 at 8:42 PM, KE1F Lou <lmecseri@cfl.rr.com> wrote:
>>
>> Is there an officially designated frequency band for RTTY operation in
>>> the
>>> U.S.?
>>>
>>> 73 Lou KE1F
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