How come the USB to serial converter doesn attach directly to the PSKMeter DB9?”
The female DB9 connector on the PSKMeter is designed to mate with the male end of a standard serial cable (the other end of which would normally mate with the serial port on a computer). However, the USB to serial adapter’s DB9 male connector is designed to also mate with a serial cable, rather than a device directly. The result is that to connect the USB adapter to the PSKMeter, you have several options. The first is to connect the adapter to the PSKMeter with a short length of RS232 cable. This is what most people do. However, there is no reason that the female threaded posts that are embedded in the adapter cannot be drilled out, leaving a straight hole. 4-40 screws can then be used to attach the adapter to the PSKMeter’s DB9 jack. Several of our customers have done that and report that is relatively easy and works well.
