[GreenKeys] 60 Meters now open to RTTY on USB

[Wa3frp]

I'm passing along something that Chen, W7AY wrote on another message board. 

Note that the "RTTY" emission specifically mentions 60H0J2 which is 60.0 Hz wide and thus restricted to PSK31 among today's commonly used modes. 

It is possible that 22.73 baud Minimal Shift Keying is also allowed.  It is also possible that 23hz RTTY would be allowed. 

 As explained in the quoted paragraph above, the word "RTTY" is mentioned only because J2B has historically been called radioteletype ("RTTY").  The key is the "60H0" part of the emission designator.  The "RTTY" signal must fit inside 60 Hz, which 170 Hz shift RTTY does not.

If you are curious about emission designators, see here http://www.comsearch.com/articles/emission.pdf 

Within the document, the FCC has alternated between 60H0J2B and 60H0J2D.  Breaking down 60H0J2B, 60H0 means 60.0 Hz, J is SSB suppressed carrier, 2 means quantized (digital) information, and the ending B means machine reception (as opposed to aural reception) of telegraphy.  An ending D, means that it is meant for data.  

73
Russ - WA3FRP
wa3frp at aol.com



Message: 3
Date: Tue, 22 Nov 2011 17:15:21 -0500
From: "Larry Tighe" <larryradio at att.net>
Subject: [GreenKeys] 60 Meters now open to RTTY on USB
To: "Greenkeys Greenkeys" <greenkeys at mailman.qth.net>
Message-ID: <0C0C48E6A0464280BEA708258B3DE669 at d2400>
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This might be a nice opening for RTTY.  60 Meters is 5 specific channels 
limited to now, 100 watts.
To date, it's been fone only and very much a "gentlemen's band".  Very 
curtious operators and
they limit their use time of a given channel.

  60 METER IMPROVEMENTS

  Hams gain a power increase (from 50 to 100 watts PEP ERP)
in the 60 meter band plus the substitution of a clearer channel
(5358.5 kHz added -- 5368 kHz deleted).  Four emission types
(USB phone, RTTY, CW and data) are now allowed on all five
authorized 60 meter channels although ham operations remain
on a secondary basis in that band.

  http://tinyurl.com/60MetersIsImproved



lar




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