[RTTY] [WriteLog] SO2V with WriteLog and the K3

[VK4TI]

Fantastic. Thanks for the information 

Trent Sampson 
0408 497550


On 08/02/2011, at 8:26 PM, Ed Muns <w0yk at msn.com> wrote:

> SO2V with WriteLog and the K3
> 
> Ed Muns, W0YK
> 
> 
> 
> Contesting with the K3's two receivers is now even more effective with the
> enhancements in recent WriteLog versions 10.8x.  This paper describes the
> feature for RTTY, but it is also useful for CW and SSB.  Basically, an Entry
> Window is dedicated to each receiver (VFO) and transmit occurs on the VFO
> frequency whose Entry Window has "focus".  SO2V denotes using the two VFOs
> (sometimes controlling two independent receivers) in the same radio.  Two
> independent receivers are needed to simultaneously listen to both
> frequencies, one in each ear.  This is usually used on the same band,
> although the K3 allows the receivers to be on different bands.  (SO2R
> denotes using two separate radios in the same way and this is usually done
> on two different bands.)
> 
> 
> 
> In WriteLog, the K3's second receiver (Sub-Receiver) is configured in the
> Ports Setup window as another K3, except that it is given the same COM port
> assignment as the main K3.  (Note that this COM port is for computer control
> of the K3, different than the two COM ports described below for FSK/PTT
> keying.)  On the Radio/Number of Radios menu, 2 is selected.  Then, in each
> Entry Window, the frequency button is clicked and "Rig on Comm Port x"
> selected for the first (K3 Main Receiver) and "Rig(2) on Comm Port x"
> selected for the second (K3 Sub-Receiver).  Enable SUB in the K3 and audio
> from each VFO is fed into the left and right ear, respectively.  On the
> Radio menu, select Headphones Split so that the non-focus audio stream is
> not muted.  Or, if you prefer muting, use Headphones Normal.  I always
> listen to both VFOs (or, both radios in SO2R), but many contesters prefer
> muting for more focused concentration.
> 
> 
> 
> For RTTY, two independent modems are needed, one for each receiver.  If
> MMTTY is used for each modem, then two independent installations of MMTTY
> must be made.  Using a standard stereo phone cable, the left (Main receiver)
> and right (Sub-receiver) audio streams feed the computer soundcard.  The
> first instance of MMTTY is configured to decode the left channel and the
> second instance of MMTTY is configured to decode the right channel.  Call
> signs selected, i.e., clicked, from each window are copied to the
> appropriate Entry window
> 
> 
> 
> For FSK, two additional COM ports are required, again, one for each instance
> of MMTTY.  Separate FSK/PTT keying interfaces are used, one on each COM
> port.  At the K3, the two interfaces are connected to the FSK and PTT inputs
> on the K3.  This makes them logically "wire-OR'd" for those who know what
> that means.  Operationally, only one of the interfaces will be keyed by
> WriteLog/Rttyrite/MMTTY at a given time, so there is no conflict and either
> one drives the K3 when it's Entry Window has focus.
> 
> 
> 
> I haven't explored this scheme using AFSK, but the principle is the same.
> Both instances of MMTTY should be able to drive the soundcard speaker, or
> Line Out, output which is connected to the K3 Line In jack.
> 
> 
> 
> When focus is moved to the second Entry Window, the K3 is simply put into
> SPLIT mode so that transmission occurs on that frequency.  Receive decoding
> remains fixed in each of the two Rttyrite MMTTY windows.  When focus is
> moved back to the first Entry Window, SPLIT is removed so that any
> transmission occurs on the Main receiver's frequency, using the call sign in
> that Entry Window.
> 
> 
> 
> If a KAT3 is installed in the K3, writelog.ini can be configured to swap
> between ANT1 and ANT2 as focus moves between the two Entry Windows.  This is
> envisioned to provide SO2R with a single K3 on two different bands.  Seems
> like it should work although I haven't tried it.  I want separate radios for
> SO2R which is supported by commercial SO2R accessories like antenna
> switches.
> 
> 
> 
> In addition, macros of K3 programmable commands can be defined in
> writelog.ini and assigned to keyboard keys as well as used in messages.
> This opens up lots of possibilities exceptional K3-WriteLog integration.
> Consult the WriteLog Help file for details (search on 'K3'.)
> 
> 
> 
> 
> 
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