[Elecraft] ESSB and the rules
Ron D'Eau Claire
ron at cobi.biz
Mon Sep 28 17:14:29 EDT 2009
Yes, and from the information I have, H3 and J3 (among others) are both
considered "phone". H3 is full carrier SSB, so there's no lower limit to the
audio frequency allowed, only a 3 kHz upper limit. What's not defined in
Part 97 is what the 3 kHz means - 3 dB down from peak, 6 dB down? And no
slope information for the roll-off beyond that.
I'm glad the rules aren't more restrictive.
I have been on the air long enough to remember when there were serious
arguments for banishing all "phone" from the HF bands as a huge
spectrum-waster. Compared to CW and even most other digital modes, it
certainly is!
More recently was a movement to stop a huge abuse of the HF bands that
effectively eliminates almost all "routine" communications for long periods
of time, even occasionally seriously interfering with real emergency
communications. Those Hams were petitioning for banning "contesting" on the
Ham bands - at least the HF bands. And they had a point. Of course what
happened was that a compromise was reached in which some HF bands are "off
limits" to all contests. Everyone has been accommodated.
Hopefully that's a model we'll continue to use when coming to agreements
about other forms of operation.
Ron AC7AC
-----Original Message-----
Not according to the FCC ....
Dave AB7E
Brett Howard wrote:
> Read my message again. ESSB is a mode!
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