[RTTY] Why is 40 Meter contesting in CW segment?

Sun Dec 5 07:06:08 PST 2010

> The 40 metre band is in need of some international sorting. Just
> listen to it during the weekend of the CQWW SSB test. I heard SSB
> right to the bottom end of the band, 7002, would you believe! RTTY
> also spreads during the same contest and similar, so we really
> should get out of the way of the CW guys.

Since SSB typically requires more than 25 times the bandwidth of
a CW signal (100 Hz vs. 2700 Hz), a more "fair" division of the
available 200 KHz would be 7000 - 7035 for CW, 7035-7070 for
RTTY (data modes > 300 Hz should be prohibited) and SSB above
7070.  ESSB and data modes more than 300 Hz wide should be
completely prohibited.   The Region 1 band plan that allows only
10 KHz for digital modes is, quite simply, absurd and unrealistic.

One could allow for some flexibility during major operating events
(e.g., contests) but SSB down to 7002 is a bit "over the top."

As far as the QRP CW boys, they should simply "suck it up" and deal
with the QRM like everyone else.

73,

    ... Joe, W4TV

On 12/5/2010 9:36 AM, Roger Cooke wrote:
> Should have checked my bandplan first!!!  Hand before brain again.
> John is correct of course.
>
> However, in "practice" it is somewhat different. Unfortunately the
> plans
> are not adhered to rigidly and the resulting mess is what we have to
> deal
> with. All modes it might be from 7050 - 7200  but I would not like to be
> the first to put my RTTY on 7090, which logically thinking, is where it
> should be.
>
>    The 40 metre band is in need of some international sorting. Just
> listen to
> it during the weekend of the CQWW SSB test. I heard SSB right to the
> bottom end of the band, 7002, would you believe!  RTTY also spreads
> during the same contest and similar, so we really should get out of the
> way of the CW guys.  And the QRP SSB guys should go above 7100
>
> 73 de Roger, G3LDI
>
> On 05/12/2010 13:34, John Barber GW4SKA wrote:
>> The Region 1 bandplan at
>> http://www.iaru-r1.org/index.php?option=com_remository&Itemid=173&func=startdown&id=67
>> shows:
>> 7000 - 7040    CW only
>> 7040 - 7050    Digital modes only
>> 7050 - 7200    All modes
>>
>> RTTY contesters can go anywhere up from 7040 but not below. CW ops can use
>> anywhere in the band EXCEPT 7040-7050.
>>
>> The problems come with the various 'centres of activity' such as QRP CW at
>> 7030 and QRP SSB at 7090. Maybe they should be moved right up the band. They
>> get completely wiped out in their own mode contests anyway ....
>>
>>>     Unfortunately, there are still some Region 1 countries that are not
>>> enjoying
>>> the extension, and that frequency
>>> is being used for SSB. It seems a little unfair when SSB has a huge part
>>> of the
>>> band, i.e. 7060 to 7200
>> Not what the bandplan says. 7060 - 7200 is all modes, NOT SSB only. Here in
>> the UK, the RSGB removed  the limitation on digimodes above 7043 in March
>> 2009 to come in to line with the IARU region 1 plan.
>>
>> Cheers,
>> John GW4SKA
>>
>>
>>
>> ----- Original Message -----
>> From: "Roger Cooke"<g3ldi at yahoo.co.uk>
>> To: "Gary AL9A"<al9a at mtaonline.net>;<rtty at contesting.com>
>> Sent: Sunday, December 05, 2010 9:31 AM
>> Subject: Re: [RTTY] Why is 40 Meter contesting in CW segment?
>>
>>
>>> Just noticed these comments about the placement of RTTY on 40 metres. In
>>> the UK,
>>> our bandplan says that
>>> we operate RTTY in the 7030 region. We have been upsetting the QRP CW guys
>>> for
>>> some time, especially
>>> in contests. At our recent Spectrum meeting, as Chairman of BARTG, I
>>> suggested
>>> that now that we have the
>>> extension to 40 metres, i.e. 7000 to 7200, it would make eminently more
>>> sense to
>>> transfer the data section to
>>> the more "normal" part of the band, i.e. 7080 - 7100.
>>>     Unfortunately, there are still some Region 1 countries that are not
>>> enjoying
>>> the extension, and that frequency
>>> is being used for SSB. It seems a little unfair when SSB has a huge part
>>> of the
>>> band, i.e. 7060 to 7200 but
>>>
>>> there is not much we can do YET to achieve this aim. I shall keep pushing
>>> for
>>> it, but I think we will have to
>>>
>>> wait until those other countries have the extension in bandwidth too.
>>>    Now, wouldn't it be nice to go back to what 40 metres used to be........
>>>
>>> Regards from Roger, G3LDI
>>> Swardeston, Norfolk.
>>>
>>>
>>>
>>>
>>>
>>> ________________________________
>>> From: Gary AL9A<al9a at mtaonline.net>
>>> To: rtty at contesting.com
>>> Sent: Sun, 5 December, 2010 3:59:10
>>> Subject: Re: [RTTY] Why is 40 Meter contesting in CW segment?
>>>
>>> You can expect some disagreement from AK hams who are authorized to use
>>> SSB
>>> in the 40M segment from 7.075 to 7.100 Mhz.  I believe the authorization
>>> was
>>> made to accomodate potential emergency use, but we can use that segment
>>> with
>>> or without an emergency.
>>>
>>> 73,
>>> Gary AL9A
>>>
>>> ----- Original Message -----
>>> From: "Gordon Bousman"<nw7d.ham at gmail.com>
>>> To:<rtty at contesting.com>
>>> Sent: December 04, 2010 4:55 PM
>>> Subject: [RTTY] Why is 40 Meter contesting in CW segment?
>>>
>>>
>>>> I'm wondering if it would not make more sense on 40 meters to have RTTY
>>>> contesting up in the traditional .80 to .100 segment of the band rather
>>>> down
>>>> in the 7030 to 7050 CW portion where we have to co-mingle with CW ops?
>>>> The
>>>> .80 - .100 segment seems to be completely vacant much of the time and
>>>> seems
>>>> like a wasted band segment today.  I know that some CW ops tend to get
>>>> very
>>>> irritated with the RTTY contesting in the 7030-7050 portion.  If I
>>>> understand it correctly, some DX countries were required to operate down
>>>> in
>>>> the lower section but now with the recent changes to 40 Meters band
>>>> plans,
>>>> would it make sense to try and move up to the 7080-7100 portion so that
>>>> CW
>>>> ops and RTTY contesters are not QRM'ing each other?
>>>>
>>>> 73, NW7D
>>>> _______________________________________________
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>>
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