[Elecraft] Is there a reason the receive is so Skinny

[XE3/K5ENS via Elecraft]

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 





--
View this message in context: http://elecraft.365791.n2.nabble.com/Is-there-a-reason-the-receive-is-so-Skinny-tp7587977p7587998.html
Sent from the Elecraft mailing list archive at Nabble.com.