Unless its a SDR tx/rx ?
G..
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From: "James Moritz" <[email protected]>
Sent: Thursday, December 29, 2011 3:43 PM
To: <[email protected]>
Subject: LF: Re: USB QRS
Dear Mal, LF Group,
...>Does anyone know of a QRS prog that uses the USB port on a computer
instead of the Serial or Parallel ports
de mal/g3kev...>
More to the point, how to connect the other end of the USB cable to the
transmitter, given that it only contains fixed 0, +5V power supply
connections and a differential pair carrying high-speed bi-directional
data. The usual solution is to use one of the inexpensive USB - RS232
converters. The one in use here takes the form of a cable with USB plug on
one end and D9 plug on the other, containing the interface circuit. It
seems to work fine.
Cheers, Jim Moritz
73 de M0BMU
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