[RTTY] RTTY & Digital Interference problems

[Joe Subich, W4TV]

On 2015-01-05 12:52 PM, RLVZ--- via RTTY wrote:
> I'll say the "street goes both ways"! I received interference all
> weekend from Non-RTTY Digital signals while I was operating in the so
> called RTTY band.

Complain to the Winstink/CRAPTOR message system operators who were
responsible for that interference.  They have no "listen before
transmit" capability *at all*.  That interference was not from JT65/JT9
or PSK31/63 operations - both of which are generally limited to fairly
narrow ranges from xx.076-xx.080 and xx.70-xx.074 respectively (with
10 meter PSK also at 28.120-28.125).

> Fact is, the RTTY band is far too narrow during major RTTY Contests
> such as the ARRL RU and the upcoming CQ WPX RTTY Test.

That may be true ... but does not grant you, or anyone else, the right
to arbitrarily transmit over existing users of other frequencies without 
even so much as a listen or QRL? in their mode.

73,

   ... Joe, W4TV


On 2015-01-05 12:52 PM, RLVZ--- via RTTY wrote:
> I'll say the "street goes both ways"!  I received interference all  weekend
> from
> Non-RTTY Digital signals while I was operating in the so called RTTY  band.
> Fact is, the RTTY band is far too narrow during major RTTY Contests such
> as the ARRL RU and the upcoming CQ WPX RTTY Test.
>
> 73,
> Dick- K9OM
>
>
>
> In a message dated 1/5/2015 11:10:37 A.M. Eastern Standard Time,
> rtty-request at contesting.com writes:
>
> The  street goes both way. The JT65 (Which I am one of) and other digital
> mode  ops need to listen also before they transmit. Intentional inference
> happens  both way.
>
> I had intentional interference from both RTTY and Digital ops  in the So
> called RTTY freqs.  It seems with in the RTTY Ranks that  250hz separation
> is enough to go up or down from the station they just  worked and start
> calling  cq.
>
> _______________________________________________
> RTTY mailing list
> RTTY at contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty
>