ORIGINAL MESSAGE: (may be snipped)
On Wed, 27 Nov 2013 01:17:15 -0500, W4TV wrote:
>
>The entire premise of RM-11708 is flawed. There *is* a limit on
>occupied bandwidth for digital modes at HF. That limit is found
>in the very definition of "data" - see section 97.3(c)(2) which
>reads:
>
>> (2) Data. Telemetry, telecommand and computer communications
>> emissions having (i) designators with A, C, D, F, G, H, J or R as
>> the first symbol, 1 as the second symbol, and D as the third symbol;
>> (ii) emission J2D; and (iii) emissions A1C, F1C, F2C, J2C, and J3C
>> having an occupied bandwidth of 500 Hz or less when transmitted on
>> an amateur service frequency below 30 MHz. Only a digital code of
>> a type specifically authorized in this part may be transmitted.
REPLY:
Joe, I think you're reading the above paragraph wrong. The 500 Hz limitation
only applies to the five modes listed in (iii) above. The modes in (i) and
(ii) are not included in the 500 Hz limitation.
73, Bill W6WRT
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