[Elecraft] K3: Is Width of Notch-Filter adjustable in some reasonable amount?

[Joe Subich, W4TV]

> Just wait until the ARRL proposal for a 2.1 kHz digital mode
> bandwidth in the CW/digital segments passes.

2.1 KHz bandwidth ... try 3 to 5 KHz!

I'm waiting on the Commission to post the proposal for comments -
then I will object to the unregulated bandwidth *and* propose that
RTTY/DATA be allowed *in the _phone_ bands*.  After all, even narrow
digital QSOs are being squeezed badly on 80 meters and the "WARC"
bands as it is.  There is certainly no problem with frequency
sharing between phone and data on six and two meters.

73,

    ... Joe, W4TV


On 9/23/2013 9:35 PM, Vic K2VCO wrote:
> Just wait until the ARRL proposal for a 2.1 kHz digital mode bandwidth
> in the CW/digital segments passes. Then we'll have autobots popping up
> that wipe out ten CW or narrow digital QSOs in one blow!
>
> On 9/23/2013 5:10 PM, Joe Subich, W4TV wrote:
>>
>> JT65A tends to be found at xx.076-xx.0785 and JT9 tends to be found
>> at xx.0785-xx.080 on most HF bands (substitute 10.138, 18.102 and
>> 24.917 for xx.076 on those bands).
>>
>> Note most RTTY collisions involve the RTTY folks who park on xx.080
>> Mark (FSK displaying mark frequency).  Since space shifts down, the
>> RTTY signal will chew up 300 Hz or more of the JT9 "center of activity."
>> The bigger problem is the WinLink (PACTOR) autobots that come up
>> anywhere in xx.075-xx.080 without listening for *any* other activity.
>>
>> 73,
>>
>>     ... Joe, W4TV
>>
>>
>> On 9/23/2013 7:33 PM, Fred Jensen wrote:
>>> Where do I find the definitions of "JTxx Territory?"  I operate RTTY
>>> only in a handful of contests, but I could be one of the encroachers.
>>>
>>> 73,
>>>
>>> Fred K6DGW
>>> - Northern California Contest Club
>>> - CU in the 2013 Cal QSO Party 5-6 Oct 2013
>>> - www.cqp.org
>>>
>>> On 9/23/2013 1:28 PM, KD7YZ Bob wrote:
>>>
>>>> That I do because the RTTY people have a
>>>> horrible tendency to get right into the edges of what they perceive is
>>>> JT65 territory.
>