[Elecraft] K2 Problem in NAQP

[Don Wilhelm]

Jim,

As "advertized", in AFSK-A or FSK-D data submodes, the K3 should display 
the mark frequency.
The K2 does not - it displays the suppressed carrier frequency.
The K3 in DATA-A behaves the same as the K2 and displays the suppressed 
carrier frequency.

Check the data sub-mode that you have set on the K3 and also check the 
mark frequency you have set (HOLD PITCH).

73,
Don W3FPR

On 7/25/2011 6:47 PM, radioshoppe wrote:
> Rich, Don and others who have responded,
>
> SRI it has taken several days to respond.  Sometimes life gets in the way of
> fun.  Please don't take my comments below personal.  They are just my
> observations and thoughts.
>
> I have done a bit more reading and observing and here is what I know.  The
> K2 in RTTY mode now transmits and receives on the same frequency after
> aligning the RTTY filters per Don's instructions.  When the K3 is in FDK-D
> mode both radios transmit and receive to each other when both dials indicate
> the same frequency.  When observing the "bracket" at the bottom of the P3
> connected to the IF output of the K3 I can see the shift you spoke of
> between USB/AFSK-A and FSK-D.  So I think we are on the same page about this
> now.
>
> The thing that concerns me now is that it's generally accepted that RTTY is
> on LSB from the carrier.  Apparently, it is not with my K2 in RTTY mode
> (AFSK) and my K3 in FSK-D mode.  Test with three different Yeasu models
> confirms they transmit and receive the mark frequency below my K2 and K3.  I
> suspect that it's the same for other models in that line and ICOM as well.
> I've read the manuals of two different ICOM radio's and they imply ICOM is
> the same as the Yeasu.  I have no knowledge of Kenwood on this subject.  So
> what this amounts to is that when I schedule to meet someone on a certain
> frequency I have to tune the mark frequency above the agreed frequency to
> communicate with them.  If I don't find them there then I have to go back to
> the agreed frequency.  (With my K3 I normally only use FSK-D.)  Of course,
> the majority of my reported frequencies in contesting do not agree that
> reported by the other corresponding party in an exchange.
>
> Not to belabor the issue, but I don't understand why Elecraft apparently
> chose this way making it different from other radio manufacturers.  I'm
> certainly open for more thoughts.  Have to get out of here at this
> moment....an electrical storm is in the immediate area.
>
> 73,
>
>
> Jim, W0EM.
>
>