[GreenKeys] FCC RM-11708
Ron Kolarik
rkolarik at neb.rr.com
Sun Apr 20 21:28:08 EDT 2014
Mark I have no problem with lifting the 300 baud limit, the problem lies
with the way the RM was jammed through by 2 directors with NO input
from members or stakeholders in the RTTY/data subbands. The current
limit only applies to HF and not v/uhf where there's MHz of spectrum, instead
of kHz, to experiment in. The last time ARRL tried this they got input but
ignored it and pushed ahead anyway. Here's a couple background links,
some things never change.
http://www.zerobeat.net/bandplan-dissent.html
http://apps.fcc.gov/ecfs/document/view?id=6518309211
There are still so many holes in the RM it's painful, ignores IARU Region 2
bandplan, no protection for narrow band users, section IV would allow the
store and forward bots anywhere in the data sub-bands. Region 1 already
has a problem with unattended ops on 30m killing most of the digital space.
2.8kHz bandwidth? okay but run it with like bandwidth modes in the voice/
image segments. There are times when it would be an andvantage for emcomm
to send voice/image/data on the same frequency which they can't do now.
The Winlink issue has been festering for well over a decade. They refuse to
be part of a solution to mitigate interference, the network admin even told
the RMS guys to turn off busy channel detection!! The favored Pactor modes
are designed to overcome narrowband interference, the RTTY, PSK, CW signals
they just crushed so some boatie could get his email. The worst part of it all is
inability to identify the offenders, there is cw id available for some of the modes
but the users turn it off. A Winlink user managed to jam the FT5ZM dxpedition for
over and hour on 40m, don't know if he was ever identified or not.
The ARRL has also adopted Winlink as part of it's emcomm role.
Ron
K0IDT
----- Original Message -----
From: Mark Richards
To: GreenKeys
Sent: Sunday, April 20, 2014 5:51 PM
Subject: Re: [GreenKeys] FCC RM-11708
I think it is also worthwhile to consider we not toss the baby out with the water that the League has managed to sully. Their original petition had some awful holes in it, which they managed to clear up in subsequent comments. I think they learned something from those who commented (some 900!).
Removing the "symbol rate" restriction is of tremendous value to the Amateur Service as it lifts an antiquated cap which has, in some measure, prevented us from developing modes that would provide for greater data rates. Without a bandwidth restriction (next paragraph) removing the cap would mean a real mess. I am in favour of lifting this restriction based upon its consistency with the purpose of the Amateur Service.
There is no codified bandwidth for digital emissions on the rules. RM-11708 establishes one at 2.8KHz, which is identical to that expected from SSB and phone operation. Therefore, if this is adopted by the FCC, we will have clamped on a rule that legislates bandwidth for digital emissions, which is a good thing, particularly as the cap on "symbol rate" would be gone.
I read a few of the linked remarks. As in most things having to do with legalese and government, I am left wondering if I've poorly understood what the League offered and similarly misunderstand the opposition.
As for WinLink and those issues, I just don't know. However, I must wonder, with the imposed bandwidth restriction of 2.8KHz, if we will have less of an issue with these operations under the proposed rule changes than what me might have now?
/K1MGY
On 04/20/2014 14:49, Ron Kolarik wrote:
Forward from another list. The topic didn't seem to get much interest the last time
around, time to comment before it's too late.
Ron
K0IDT
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