[BVARC] FT8 on CW reserved frequencies

[David Lira]

Can someone educate me on what a CW reserved/exclusive frequency is on 40
meters? I thought part 97 said you could CW anywhere on 40m but were
limited on rtty/data to 7.000-7.125. What am I missing?

Regards,
David

On Wed, Oct 15, 2025, 22:33 Joseph Benoit via BVARC <bvarc at bvarc.org> wrote:

> Read the rules again. FT8 is a digital mode and can be used anywhere but
> CW-exclusive segments. DX stations (and their respondents) frequently
> operate on away fro busy "FT8" frequencies.
>
> On Wed, Oct 15, 2025, 9:51 PM Kori Rahman via BVARC <bvarc at bvarc.org>
> wrote:
>
>> FT8 only operates on a single frequency on each band,(some bands like 6m
>> etc have two defaults but only one is usually used). There are alternate
>> frequencies for a version of FT8, called JS8Call but that's limited too
>>  For 40m FT8 takes place on 7.074MHz USB, and JS8Call is on 7.078 MHz
>> USB).
>>
>> My only guess is that it's one person either with no idea what they're
>> doing, or with insufficient harmonic suppression...
>>
>> All that to say: Are you sure it's FT8? Because a lot of other modes
>> sound similar. Especially FSK modes like RTTY... Anything that uses
>> Frequency shifting. I guess packet is possible too. There are HF Winlink
>> stations all over the spectrum. But mostly the upper portion of CW or lower
>> of voice, in the vicinity of FT8 frequencies. If you have a waterfall
>> display you can compare the signal to those on this website:
>> https://www.hfunderground.com/wiki/index.php/Signal_Identification
>>
>> Hope that helps! 73!
>>
>>
>> Kori Rahman, WX5KR
>> Houston POTA, President
>> Brazos Valley Amateur Radio Club
>> - Vice-President and Club Call Sign KK5W Trustee
>> Cross Roads Ham Radio Club
>> Fort Bend County EMROG
>> District 14 SW Unit ARES
>> Texas State RACES
>> Cell: (770) 298 8516
>> Kori113 at gmail.com
>>
>> On Wed, Oct 15, 2025, 9:18 PM Jay Davidson via BVARC <bvarc at bvarc.org>
>> wrote:
>>
>>> Why are people running FT8 right in the middle of CW on 40?
>>>
>>> It’s horrible-overrunning swaths of the band.
>>>
>>> Trying to copy some DX and all I hear under the weak CW tone is
>>> someone’s sound card  bleeding over.
>>>
>>> 7.0650
>>>
>>> I don’t want to hop to FT8 to copy and get their call sign because I’d
>>> be just as bad.
>>>
>>> Idk
>>>
>>> 73,
>>> KJ5HMX
>>>
>>>
>>> Sent from my iPhone
>>> ________________________________________________
>>> Brazos Valley Amateur Radio Club
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