[WT-support] CW Speed variations - K1EL V22 Chip now available

[Denny Sahovic, KX7M]

Has anyone tried V22 yet?

In 3.19 and 3.20, PTT drops at every space. Is there a way to extend the 
PTT hold?

Denny, KX7M

Rich Hallman - N7TR wrote:
>
> K1EL now has an updated V22 chip available that hopefully fixes some 
> of these issues.
>
> _http://k1el.tripod.com/WinKeyer2.html_
>
> Version 22 Description of Changes:
>
> 1) In pre-V22 the POT RANGE parameter was not validated, if an illegal 
> value was entered
>
> erratic behavior could result. In V22 an illegal value is ignored
>
> 2) The Speed Pot value is now averaged to reduce random speed pot 
> changes due to noise.
>
> 3) Changes in Speed Pot are ignored during transmit. Again this 
> reduces random speed pot
>
> changes due to induced RF. This was never proven to be a problem in 
> V21 but it was easy to
>
> implement. The speed pot will be monitored in between active dits and 
> dahs so that a user
>
> can still change speed while transmitting but not a responsively as in 
> previous versions.
>
> 4) PTT release is measured one dit time after the last element sent. 
> In addition a tail setting of 1
>
> means no additional delay time is inserted beyond the dit time. In 
> other words delay equals
>
> setting minus 1. This greatly improves the QSK performance. Hang time 
> operation has not
>
> been changed.
>
> 5) Direct paddle input now operates for all modes. In v21 and earlier 
> only Imabic A and B would
>
> work for direct paddle input.
>
> 6) V22 now operates properly for cases where it is connected to a host 
> application and the host
>
> PC goes into standby which places the USB ports into standby sleep 
> mode. In V22 WKUSB
>
> will go into sleep mode and will wake up when the PC does and remain 
> connected to the host
>
> application. In V21 if the host went to sleep WKUSB would disconnect 
> and go into standalone
>
> mode. So when the PC woke up WKUSB would not be connected.
>
> 7) Mutli-press pushbutton sequences are supported for standalone 
> operation. This allows
>
> messages 5 and 6 to be accessed directly and also maps the serial 
> number decrement
>
> command to a push button press sequence. This is described in the new 
> revision of the WK2
>
> datasheet.
>
> 73  Rich N7TR
>
> *From:* support-bounces at win-test.com 
> [mailto:support-bounces at win-test.com]* On Behalf Of* Tom Taormina
> *Sent:* Tuesday, February 26, 2008 8:22 AM
> *To:* support at win-test.com
> *Cc:* 'microHAM Support'; k1el at k1el.com
> *Subject:* [WT-support] CW Speed variations
>
> We've talked this subject to death and still both of my MK2R's running 
> under WT begin erratic CW speed problems sooner or later during a 
> contest. I recorded a transaction log for OM7MM at MicroHam and he 
> said he could not see any anomalous behavior of the MK2R.
>
> I just had an interesting experience with Green Heron and relate it 
> here because I would like for all of you to consider if the issue is 
> USB related.
>
> I have six Green Heron rotor control boxes. With their USB ports 
> connected, I experienced extremely erratic behavior. It took many 
> restarts to connect to the GH server each time I shut one of the boxes 
> off. Sometimes, I had to delete and reinstall the drivers or the 
> devices. I decided to install an 8 port Serial card in the computer 
> and all of the problems have gone away. I have worked with W2FU in the 
> past and know him to be a very capable engineer, but I am also aware 
> that USB protocol is massively more complex than serial or parallel 
> protocol.
>
> Is it possible that the time has NOT YET come for USB to be stable 
> enough for our needs in ham radio, or is USB too complex for the 
> amateur to implement? Just a thought. The three groups involved in 
> this issue need to have a summit and fix this problem.
>
> *Tom Taormina, K5RC*
>
> *CQ Contest Hall of Fame**
> **Virginia City NV**
> **www.k5rc.cc* <http://www.k5rc.cc>
>
> *FOC 1760**
> *NACHO-W7RN RANN-K7RC
>
> ------------------------------------------------------------------------
>
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