[TOEC] USA Phone band expansion

[Jan Erik Holm]

Jag gör så här istället.

73 SM2EKM
-------------------------------------

Donald Chester wrote:
> Up to an extra 150 kc/s for phone on 75 m for Extra class.
> 
> 75m Phone Allocations
> 
> 
>             General      Advanced      Extra
> 
> Current      3850-4000   3775-4000   3750-4000
> 
> New          3800-4000   3700-4000   3600-4000
> 
> Increase         50           75        150
> 
> 
> 
> 40m Phone Allocations
> 
>              General      Advanced       Extra
> 
> Current      7225-7300    7150-7300    7150-7300
> 
> New          7175-7300    7125-7300    7125-7300
> 
> Increase        50            25           25
> 
> Much better than anything I had anticipated, but we are still left with 
> a cumbersome matrix of subbands based on operator class combined with 
> emission mode.
> 
> Considering the relief in congestion we have already experienced due to 
> the general decline in amateur activity in recent years, there should be 
> plenty of room for all on 75m, without the griping about AM "taking up 
> too much room on the crowded band."  Of course, if the FCC eventually 
> eliminates the code requirement, expect an initial spike in activity as 
> hoards of no-code Techs upgrade, but after the initial spike I predict a 
> return to stagnant growth.  There should still be plenty of room for AM 
> activity.
> 
> Once the expansion goes into effect, we should immediately commence AM 
> activity on the new frequencies, including the 3600-3700 kc/s Extra 
> segment.
> 
> I have looked over the R & O, but I am not sure if it means that 
> 3600-3700 is restricted to Extra class for all modes, or just that 
> Extras can now use phone in the segment.  How this will affect non-voice 
> licence class restrictions is not made entirely clear in the FCC document:
> 
> "12. Regarding the division among license classes of the spectrum on 
> which we today
> authorize phone emissions, we adopt the Commission’s proposal to 
> authorize stations of General
> Class licensees to transmit voice emissions in the 3800-4000 kHz 
> frequency segment, thereby
> increasing by 50 kHz the spectrum for voice communications by these 
> stations. Because we
> have decided to authorize more 75 m spectrum for voice communications 
> than was proposed in
> the NPRM, we also authorize stations of Advanced Class licensees to 
> transmit voice emissions in
> the 3700-4000 kHz frequency segment, thereby increasing by 75 kHz the 
> amount of spectrum for voice communications by these stations. We also 
> authorize stations of Amateur Extra Class
> licensees to transmit voice emissions in the 3600-4000 kHz frequency 
> segment, thereby
> increasing by 150 kHz the spectrum authorized to these stations for 
> voice communications. In
> the 40 m and 15 m bands, we adopt the Commission’s proposal to authorize 
> stations of Amateur Extra and Advanced Class licensees 7125-7300 kHz, 
> stations of General Class licensees 7175-7300 kHz, and stations of 
> General Class licensees 21275-21450 kHz for phone communications."
> 
> If Generals and above will still be able to use 3600-3700 for non-voice 
> modes, expect digital modes to continue to operate in this segment.  I 
> suspect that may be the reason such a big hunk was set aside for Extras 
> - to limit phone activity in that region of the band so that some of the 
> digital stuff can continue on those frequencies.
> 
> Although the thinking of government agencies is extremely unpredictable, 
> this doesn't look well for the ARRL's bandwidth proposal.  If the FCC 
> were seriously considering limitations by bandwidth any time soon, it is 
> unlikely they would have gone to all the trouble to work out this plan, 
> only to have to revise it in the near future to accomodate 
> subbands-by-bandwidth.
> 
> Looks like we'll soon be able to join the Canadians in their "AM Window" 
> on 3720.
> 
> The change is expected to go into effect sometime in mid-November.
> 
> http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-06-149A1.pdf
> 
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