however the FCC's bandwidth limitation on "RTTY" really means PSK31
and other narrow band digital modes, not 170 Hz 45.5 baud FSK.
Not true ... if 2K80J2D is permitted *any* J2D mode (including 45.45
baud AFSK) with a bandwidth *less than* 2800 Hz would also be permitted.
Traditional RTTY (170 H shift, 45.45 baud) can be equally
described as 370H0F1D, 370H0F1B, 370H0J2D or 370H0J2B depending on
whether it is generated as AFSK or FSK and whether the content is
generalized data or data meant for on screen display (automatic
detection).
73,
... Joe, W4TV
On 3/17/2014 1:09 PM, Fred Jensen wrote:
The last sentence also needs to be updated. Permitted emissions are now
USB, CW, and "RTTY," however the FCC's bandwidth limitation on "RTTY"
really means PSK31 and other narrow band digital modes, not 170 Hz 45.5
baud FSK.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org
On 3/17/2014 7:13 AM, Sam Morgan wrote:
here is another update that would be welcome:
pg 40 says:
The U.S. 60-meter channel assignments
correspond to VFO settings of 5330.5, 5346.5,
5366.5, 5371.5, and 5403.5 kHz. USB is the only
mode allowed on this band.
I think the new frequencies are as follows:
5330.5, 5346.5, 5357.0, 5371.5, and 5403.5 kHz.
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