Specifications

andWiMo (Germany). Other reasonably priced interfaces are available on the market.

Cable

Generally the cable between the computer and the interface (or the radio) is a straight wired

serial data cable (RS232 DB9/DB9). Exceptions are: FT-847 (null modem cable), FT-100 (

Yaesu CT-62 cable) and JRC (special wiring).

RS 232/USB converters

While a com port on the mother card is always preferable, if your computer does not have a

serial RS232 input, you need an RS232/USB converter. Make sure your converter supports

RTS/DTR/CTS/CTS as required for CW/PTT keying/TX Interrupt... or by some protocols.

Once your RS232 converter is recognized by Windows, in order to set up TRX-Manager, you

must determine the number assigned to the com port created by the driver. You have to go

into the Device Manager and expand the Ports line to see the list (the com port number

may be different depending on which USB device is connected to your computer).

TRX-Manager supports com ports from #1 to #32. If a com port has been created outside

that range, you can re-assign the com port number (between 1-32) from the device manager.

How to choose your Serial to USB Converter

USB to Serial converters built with FTDI chips are strongly recommended (http://www.ftdichip.com/

); they are very reliable and provide very fast communications.

The cheap converters built with PROLIFIC chips (and all clones) are prone to malfunctions and

slow communications with TRX-Manager.

A multi-ports PCI card (internal to the computer) is a very good solution which minimizes RFI and a

cheaper alternative to 4 separate USB/Interface Cable.