[RTTY] List of Winlink stations

[Terry]

The automated packet robots do not meet the ARRL Considerate Operator's
Frequency Guide that says "It's good practice--and plain old common
sense--for any operator, regardless of mode, to check to see if the
frequency is in use prior to engaging operation. If you are there first,
other operators should make an effort to protect you from interference to
the extent possible".       

The purpose of a band plan per the ARRL is:  "A band  plan refers to a
voluntary division of a band to avoid interference between incompatible
modes."

The ARRL is soliciting input for a new band plan that accommodates RM-11708.
The recent interference of robot packet to the FT5 DX-Expedition has the
attention of lots of folks.    This is the perfect time to move the
automated packet stations out of traditional RTTY/CW/SSB sub bands as they
have proven to cause interference.    That's is why we have to submit inputs
the ARRL band plan committee.





-----Original Message-----
From: RTTY [mailto:rtty-bounces at contesting.com] On Behalf Of Joe Subich,
W4TV
Sent: Sunday, March 16, 2014 10:26 AM
To: rtty at contesting.com
Subject: Re: [RTTY] List of Winlink stations


> If it was then why go there knowing what may happen. It's like going 
> for a Sunday evening walk on the I-95 interstate.

The problem is this *is not confined to the "automatic" subband*.

The rules allow automatically controlled stations to *answer calls*
*anywhere* except 60 meters provided:
> (1) The station is responding to interrogation by a station under
 > local or remote control; and
>
> (2) No transmission from the automatically controlled station occupies  
> a bandwidth of more than 500 Hz.
     - section 97.212(c)

The issues with this are: 1) the "calling station" can not hear signals in
his skip zone or stations the "other side" of the robot he is calling; 2)
once the automatically controlled station has established a link with a
station under local or remote control there appears to be *nothing* to
prevent the two stations from "up-shifting" to a faster rate/wider bandwidth
signal.

> Excuse me, but was this NOT the very reason that the "auto" sub band 
> was created?

Automatically controlled stations are like *any other* amateur station they
do not have an exclusive right to any frequency - whether they are in the
automatic control subband or not.  *All* amateur stations are required to
stand-by if the frequency is in use (e.g. first come, first served).

 > You don't go looking for a SSB QSO in the CW portion do you?

One is not legally allowed to transmit SSB (or any wide bandwidth mode
- including wide bandwidth image) in those frequencies reserved for narrow
bandwidth modes (identified as "RTTY, data" in 97.305(c)).  For your
information, there is no "CW portion" - CW is permitted on *all* amateur
frequencies.  See 97.305(a) "Except a specified elsewhere in this part, an
amateur station may transmit a CW emission on any frequency authorized to
the control operator."

73,

    ... Joe, W4TV


On 3/16/2014 11:02 AM, John Becker wrote:
>
> On 3/16/2014 9:39 AM, Terry wrote:
>
> < Averaging it out, on 40 meters, there is a Winlink robot operating 
> every 476 Hz just waiting to QRM you. Not good. 73 Terry, AB5K
>
> Excuse me, but was this NOT the very reason that the "auto" sub band 
> was created?
> If it was then why go there knowing what may happen. It's like going 
> for a Sunday evening walk on the I-95 interstate. You don't go looking 
> for a SSB QSO in the CW portion do you?
> But maybe some may.
>
> JAB
> _______________________________________________
> RTTY mailing list
> RTTY at contesting.com
> http://lists.contesting.com/mailman/listinfo/rtty
>
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