I did a little research on FCC Regs and found this according to a sub
article in QEX May/June 2000
"The transmission of telephony in digital format
(emission designator J1E or J2E) is
perfectly legal in the phone bands. The
restriction placed on transmitted baud
rate by §97.307(f)(3) of the FCC rules does
not apply. In fact, there is no upper limit
on the bit rate for this mode."
and later in a box on the second page it starts
Is Digital Voice Permissible under Part 97?
There has been some discussion about
Part 97 of the FCC Rules and whether
digital voice is “legal.” A careful
reading of the Rules will show that
digital voice is indeed provided for
The whole article can be read here
http://www.arrl.org/files/file/Technology/tis/info/pdf/0056x003.pdf
see the box on the second page which explains it in detail.
Unfortunately the main article is somewhat over my head much like most
stuff in QEX but I keep reading anyway.
In Canada we have less restrictions regarding the band plans and Digital
Voice is allowed here as well.
David Moes
[email protected]
VE3DVY
On 4/5/2013 1:17 PM, Richard Fjeld wrote:
I have thought about this also.
Some data modes use carrier, others are audio. Some data modes in the phone
portion will conserve bandwidth, but will consume bandwidth in the CW portion.
It will be interesting to see how it sorts out.
Rich, n0ce
----- Original Message -----
From: ab2tc
To: [email protected]
Sent: Friday, April 05, 2013 9:18 AM
Subject: Re: [Elecraft] Free DV (digital voice as reported in QST-Aprilissue)
Correction,
Replace term "digital" below with "data".
Knut - AB2TC
ab2tc wrote
> Hi again,
>
> This slightly OT thread is becoming rather long but I'll risk another
> entry. Nobody has addressed the issue about whether these types of signals
> are actually permitted in our phone bands. I have never seen a precise
> definition of what the FCC means with the terms "phone", "digital" or
> "image". If digital voice meats the criteria for "digital", according to
> FCC they should go in the CW portion of the bands! I can't imagine that
> would be popular with the CW folks.
>
> AB2TC - Knut
> <snip>
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