I have to start out by saying that I am not familiar with that Startech
box, but if you are using a desktop, you may want to consider installing
a serial card. When computers stopped coming with serial ports, I
installed a dual serial card in my desktop rather than mess around with
USB-to-serial adapters. The one I bought was from Newegg and cost about
$12 (including shipping from China). My computer originally came with
Windows 8.1 and the serial card installed with no issues (once I went to
the manufacturer's website and got the latest drivers). I upgraded(?) to
Windows 10 last year and it survived the transition with no issues.
For the interface, I built the W3YY interface kit
(http://www.w3yy.com/fsk.htm). My radio is an IC-7410 and I can report
that FSK RTTY works flawlessly with MMTTY and N1MM+. (NOTE: FSK RTTY
with this hardware combination does *NOT* work with DM780!) The other
serial port does work with CW on N1MM+, CWType and even DM780.
73,
de Scott N0IU
On 9/2/2016 2:22 PM, 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
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