[GreenKeys] Legal digital modes?

[Ralph Mowery]

Almost anything goes if I read the rules correctly. Section 4 seems to state
that as long as you publish the codes you can use them.   There are other
rules as to speed and such but you can look them up.   Here is the rtty/data
part.


97.309 RTTY and data emission codes.
(a) Where authorized by �97.305(c) and 97.307(f) of this Part, an amateur
station may transmit a RTTY or data emission using the following specified
digital codes:


(1) The 5-unit, start-stop, International Telegraph Alphabet No. 2, code
defined in International Telegraph and Telephone Consultative Committee
Recommendation F.1, Division C (commonly known as Baudot).
(2) The 7-unit code, specified in International Radio Consultative Committee
Recommendation CCIR 476-2 (1978), 476-3 (1982), 476-4 (1986) or 625 (1986)
(commonly known as AMTOR).

(3) The 7-unit code defined in American National Standards Institute
X3.4-1977 or International Alphabet No. 5 defined in International Telegraph
and Telephone Consultative Committee Recommendation T.50 or in International
Organization for Standardization, International Standard ISO 646 (1983), and
extensions as provided for in CCITT Recommendation T.61
(Malaga-Torremolinos, 1984) (commonly known as ASCII).

(4) An amateur station transmitting a RTTY or data emission using a digital
code specified in this paragraph may use any technique whose technical
characteristics have been documented publicly, such as CLOVER, G-TOR, or
PacTOR, for the purpose of facilitating communications.

(b) Where authorized by ��97.305(c) and 97.307(f) of this Part, a station
may transmit a RTTY or data emission using an unspecified digital code,
except to a station in a country with which the United States does not have
an agreement permitting the code to be used. RTTY and data emissions using
unspecified digital codes must not be transmitted for the purpose of
obscuring the meaning of any communication. When deemed necessary by an EIC
to assure compliance with the FCC Rules, a station must:


(1) Cease the transmission using the unspecified digital code;
(2) Restrict transmissions of any digital code to the extent instructed;

(3) Maintain a record, convertible to the original information, of all
digital communications transmitted.




> GE OMs;
>
> What digital modes are legal for amateurs in the US?
>
> You go on 20m, and geeze louise there are alot of them!
>
> I've heard every mode that the rigblaster supplied-software can copy.
>
> Did the FCC relax their rules - because just about everyone has a PC,
> can get the S/W for free/cheap, and decode all the signals?
>
> Or are they too busy SELLING off SPECTRUM to pay attention...
>
>                      :-)
>
> 73's
> tony W6ESE / ex-WA2EAA
> NNNNZCZC
>