The U.S. Phone band extends down to 7.125, which means 7.127.5 or 7.128 LSB
(depending on how confident you are in the cleanliness of your transmitted
signal) is perfectly legal.
The FCC made that change in 2007 or 2008, if I recall.
73, Chris WF3C
On Thursday, May 7, 2015, VK4TS Trent Sampson <vk4ts@outlook.com> wrote:
> " Also, I have heard numerous US hams call on 40M below 7150,"
>
> I just figured they could because I often park simplex on 7130~7140 and
> work
> plenty of US stations
>
>
>
> -----Original Message-----
> From: CQ-Contest [mailto:cq-contest-bounces@contesting.com <javascript:;>]
> On Behalf Of Ed
> Sawyer
> Sent: Thursday, 7 May 2015 8:02 PM
> To: cq-contest@contesting.com <javascript:;>
> Subject: Re: [CQ-Contest] Log Checking Technology
>
> I think its great that this is finally getting the action that it has
> deserved. Kudos to Randy for leading the way on it.
>
>
>
> 2 comments/questions from me:
>
>
>
> 1) I am very curious how Power was decided to be abused in the cases
> where that was a violation. Randy and I have had some dialog on my case of
> seeing the difference in score and on air observation of my station
> changing
> from the low power to the high power use and category. There were a couple
> of cases where it would have been likely obvious that I couldn't be using
> low power any more (and wasn't) that Randy and I talked about.
>
> 2) I have heard numerous people working outside of USA bands yet don't
> see any USA calls on the warning list. Is there a way that they should be
> reported in the future for possible investigation? If so, I was unaware of
> this interest of the committee. As all USA ops know, there seems to be
> some
> difference in legal interpretation between country regulatory authorities
> on
> exactly when you are "out of band". Here in the US, the sideband is
> considered part of the transmitted signal and therefore you can't legally
> transmit on 21449. Whether you can transmit on 212447.5 is a matter of
> debate depending on the cleanness of your signal vs the -40dB skirts of
> your
> signal spectrum but clearly, for any SSB signal 21448 and above is not
> going
> to be legal for even the cleanest SSB signal from what I can determine
> (maybe some even debate this - not sure). Also, I have heard numerous US
> hams call on 40M below 7150, some have even called me while I am listening
> split. Should we be emailing these infractions somewhere when observed?
>
> Ed N1UR
>
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--
Chris Plumblee
407.494.5155
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