This whole thread about ACSSB legality reminds me of read it again regarding
TV channel 7 digital conversions of a few months ago.
-- Original Message --
Received: Thu, 12 Nov 2009 07:47:54 AM PST
From: wd8chl wd8...@gmail.com
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater
: [Repeater-Builder] ACSSB
Could you please provide a rule number to back this up?
Linear Modulation and ACSSB share 4K00J3E as the emission designator.
On Thu, Nov 12, 2009 at 5:34 AM, n0fpe n0...@cox.net wrote:
One thing to remember. Amatuers are NOT authorized to use ACSSB above 30mhz.
Please
@yahoogroups.com
Subject: Re: [Repeater-Builder] ACSSB
Interesting thing about part 97. It is written differently than any other
part of the rules. In most of the rules they tell you what you can do and if
it isn't specifically spelled out then you can't do it.
In part 97 it is the other way
wonder why the fcc does not allow acssb above 30 mhz on the ham bands? seems
to me they would want to promote more efficient modes through all the ham
bands.
another interesting thing would be to see 2 meter repeaters go to 2 or 3 mhz
splits and employ some form of efficient modulation mode
Rev. Robert P. Chrysafis wrote:
wonder why the fcc does not allow acssb above 30 mhz on the ham bands? seems
to me they would want to promote more efficient modes through all the ham
bands.
another interesting thing would be to see 2 meter repeaters go to 2 or 3 mhz
splits and employ
n0fpe wrote:
One thing to remember. Amatuers are NOT authorized to use ACSSB above 30mhz.
Please check part 97 for the exact modes we are able to use.
heck if we were there would be tons of ACSSB repeaters already modified into
the ham band.
I don't believe that comment on legality. But no,
I find nothing in Part 97 which would preclude ACSSB, as it appears to meet the
definition of phone, but I do recall some debate at the time on whether the
audio frequency inversion scheme/pilot tone was a form of
scrambling/encryption, which would have made it illegal on the ham bands. The
On Thursday 12 November 2009 07:34:08 n0fpe wrote:
One thing to remember. Amatuers are NOT authorized to use ACSSB above 30mhz.
Please check part 97 for the exact modes we are able to use.
heck if we were there would be tons of ACSSB repeaters already modified into
the ham band.
No, thats
At 11/12/2009 07:47, you wrote:
n0fpe wrote:
One thing to remember. Amatuers are NOT authorized to use ACSSB above
30mhz. Please check part 97 for the exact modes we are able to use.
heck if we were there would be tons of ACSSB repeaters already modified
into the ham band.
I don't believe
Could you please provide a rule number to back this up?
Linear Modulation and ACSSB share 4K00J3E as the emission designator.
On Thu, Nov 12, 2009 at 5:34 AM, n0fpe n0...@cox.net wrote:
One thing to remember. Amatuers are NOT authorized to use ACSSB above 30mhz.
Please check part 97 for the
The demise of ACSSB in our area was the overall
range was limited to poor sensitivity relative to
a similarly situated uhf repeater.. Typical
sensitivity of the mobiles was .4-.5~.6uv or so
compared to sub .2uv on uhf and vhf fm mobiles
that were readily available.. Sound quality did not
I was playing with the ideas of making adapters, but it is supprisingly
difficult to throw audio exactly 90 degrees out of phase over a broad
frequency range.
Anyway it might be practical to adopt the pilot tone to an HF radio. I'd
transmit a 100Hz pilot tone, or something that would go through
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