Unfortunately Win-Test’s Bandmap always toggles between the first and second VFO wrongly indicating “Split” Operation. With a polling ratio of 1:10 (Win-Test: 100ms and CW-Skimmer: 1000ms) the frequencies are displayed in both applications correctly. The virtual splitter sends the data requests from both applications to the transceiver: Let’s have a closer look at what I mean with packet routing.
Sdrplay and n1mm logger at the same time serial#
Virtual Serial Splitter allows us to use the same com port with several applications, however, they have no intelligence regarding packet routing. Now we have established the communication, we can start with the problems 😉 This is how the configuration looks like now: It’s intuitive, very reliable, and freeware! This is a list of the ones I found:Ī Virtual Com-Port Splitter allows us to access the same physical Com-Port of a Computer multiple times simultaneously. Several companies offer a variety of virtual COM port/splitter/router applications. Unfortunately, Windows allows natively only one application to use the serial (com)-port at any moment.īut nobody is wondering, that in the golden days of Computer Virtualization also virtual COM-Port drivers became available. With the introduction of CW-Skimmer, another application announced access to the transceivers interface. In the “old days” the transceiver was connected exclusively to logging software like Win-Test or N1MM. For decoding morse code (CW), Alex Shovkoplyas, VE3NEA wrote the neat software CW-Skimmer which can decode up to 700 CW stations in conjunction with a wideband receiver.
IntroductionĪ couple of weeks ago I modified my Yaesu FT1000MP short wave transceiver to be able to use it with an external software defined radio (SDR).
We will see what happens when multiple programs try to talk to the transceiver at the same time, what problems appear and how we can successfully monitor and debug them. In this article, we will investigate how various Contest programs (Win-Test, N1MM, and CW-Skimmer) communicate with the FT1000MP shortwave transceiver over the serial port.
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