In what regard? 45.45 baud/170 Hz shift Baudot RTTY is not excessively
wide and certainly within the bandwidth requirements (300 baud/1000 Hz
shift).
73,
... Joe, W4TV
On 4/27/2014 5:43 PM, XE3/K5ENS via Elecraft wrote:
Joe,
You shouldn't have any problem agreeing RTTY should not be
used as a digital mode.
Keith, K5ENS
I would also hope there is a time and place for more courtesy.
Including maintaining a *clean*, narrow signal that does not use
half again as much spectrum as a reasonable communications grade
signal as defined by ITU (and NTIA).
97.3(a)(43) Spurious emission. An emission, or frequencies outside
the necessary bandwidth of a transmission, the level of which may be
reduced without affecting the information being transmitted.
(SSB) Phone = 2K80J3E => Necessary bandwidth 2.8 KHz. Emissions outside
2.80 KHz = "Spurious emission"
97.307(a) No amateur station transmission shall occupy more bandwidth
than necessary for the information rate and emission type being
transmitted, in accordance with good amateur practice.
97.307 (c) All spurious emissions from a station transmitter must be
reduced to the greatest extent practicable. If any spurious emission,
including chassis or power line radiation, causes harmful
interference to the reception of another radio station, the licensee
of the interfering amateur station is required to take steps to
eliminate the interference, in accordance with good engineering
practice.
SSB greater than 2.8 KHz is neither "good engineering practice" nor
"necessary for the information rate and emission type being transmitted".
73,
... Joe, W4TV
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