Do you really need the PTT line for CW Rick?

Rick Hambly (W2GPS) wrote:
> Hello All,
> 
> Now that I have DX4WIN V8.02 with its expanded list of COM ports I am trying 
> to interface it with my
> software defined radio. This radio is openHPSDR hardware with PowerSDR 
> software, the same software
> used with the FlexRadio products, like the Flex-5000. I am using Phil 
> Covington's virtual COM port
> driver. DX4WIN sees the radio on COM25. The radio sees DX4WIN on COM24.
> 
> DX4WIN <=> COM25 <=> Virtual COM Port software <=> COM24 <=> PowerSDR <=> SDR
> (CAT,
>  PTT,
>  Key)
> 
> Here's what works: The CAT control works fine using the Kenwood TS-2000 
> protocol. DX4WIN reads the
> radio parameters correctly and can change them manually or when I click on a 
> spot. The keyline and
> PTT line work as expected when the state of these lines are changed via the 
> DTR and RTS checkboxes
> in the setup screen, Radio tab. This was done only to see if these lines 
> worked and they do.
> 
> What doesn't work: The CW keyboard will not activate the transmitter. I hear 
> the local sidetone from
> DX4WIN but it does not activate PTT nor does the keyline have any effect.
> 
> I have the CW setup screen set to Device Type = DX4WIN, Radio 1/2 Signal = 
> None, Reverse = NOT
> checked, Interface = COM25 (the same as the CAT port), DTR=PTT, RTS=CW 
> Keying, External Keyer = COM1
> (there is no "none" setting).
> 
> When I substitute MixW for DX4WIN and send CW it works fine.
> 
> I have reviewed the forum, internet, and help file information I can find 
> with no success. Has the
> CW keyboard been tested with these new high number COM ports? Am I missing 
> something in the setup?
> 
> Rick, W2GPS
> 
> 
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