[RTTY] Startech USB COM port adapter

[Alex]

On 2016-09-03 12:32, Alex wrote:
> Hi Kim,
> 
> I don't have any experience with that particular adapter. Until now
> I've always used a 4 port UART board in the desktop as someone
> described earlier. However, I'm considering getting rid of the desktop
> and replace it with a laptop. I just finished building a new interface
> (which I call the Amazon Special) that only requires a single USB
> port, and provides for CAT, Audio board (Behringer), groundloop
> isolation through transformers and optocouplers, and FSK keying using
> the TinyFSK solution by Andy Flowers, K0SM:
> 
> http://www.frontiernet.net/~aflowers/tinyfsk/
> 
> It seems to me that folks only really struggle with serial port
> solutions when it comes to FSK keying, so I'd really consider the
> TinyFSK solution. It looks to me that it can easily be adapted for use
> with the K3S and you won't need W1AN interface I think, if you add a
> DB15 connector to the TinyFSK interface. The web page describes how it
> can be used with N1MM.
> 
> I tested the TinyFSK interface with Airlink Express in the SCC contest
> and it works just peachy. Airlink Express (not contesting software!)
> will have native support for the TinyFSK in the next release.
> 
> 73,
> --Alex KR1ST
> 
> 
> On 2016-09-02 15:22, William K Carr III wrote:
>> I have a Startech ICUSB2324X USB to 4 COM port adapter that I want to
>> use with N1MM+ and the MMTTY engine to key FSK and PTT through the
>> W1AN interface that plugs into the DB15 connector on my K3S.
>> 
>> This Startech adapter was recommended by a local RTTY contester who
>> uses it without problems on Windows 7. I'm using Windows 10 64 bit.
>> 
>> The drivers installed OK and I have 4 active COM ports (5, 6, 7 and 9)
>> in Device Manager. I decided to get this working with MMTTY by itself
>> before loading the MMTTY engine with N1MM+.  I have COM5 (first port
>> on the Startech box) cabled with a straight thru cable to the DB9 end
>> of the W1AN adapter. When I set MMTTY Options TX for FSK and select
>> COM 5 and hit OK, MMTTY throws an error that says it can't open COM 5.
>> Changing to another COM port gets the same result.
>> 
>> Now here's the weird part. I configured MMTTY and the K3S to use the
>> USB sound interface built into the K3S, and that works fine with AFSK.
>> I left the serial cable connected. However, when I transmit, I noticed
>> that the PTT line on the W1AN adapter is activated by MMTTYand keys
>> the K3S!! The red LED on the adapter is on.  If MMTTY can't open open
>> the designated COM port, how can it toggle RTS?
>> 
>> Anyone have suggestions on how to get this working or experience with
>> the ICUSB2324X adapter?
>> 
>> Kim  K5TU
>> 
>> 
>> 
>> 
>> Sent from Samsung tablet
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