Control of the FT-897D transceiver via USB. Scheme, description

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Control of the FT-897D transceiver via USB. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Civil radio communications

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I bought an FT-897D transceiver and immediately thought about how to connect it to a computer. I wanted the connection to be carried out with a single USB cable, and all additional devices would be inside the transceiver. I spied this idea somewhere on the Internet, and its implementation in my version turned out as shown in Fig. 1.

Controlling the FT-897D transceiver via USB
Fig. 1

The FT-897D transceiver has a battery compartment that is usually empty. So I decided to place all the necessary "pieces of iron" in it. He removed the bottom cover of the transceiver, glued two strips of textolite to it and placed a four-port hub - a USB hub (1) on them. I inserted a sound card connector (1) into the left (according to Fig. 2) connector of the hub, a miniature “flash drive” (3) into the right one, and a USB cable connector (4) into the central one, the second end of which I soldered to the Unicom interface board -Dual(5). I connected the input and output of the sound board in the same way with the help of two small cables (6 and 7) to the Unicom-Dual board. The hub connector for connecting to a computer is located on the side wall of the hub. To access it, one of the jumpers between the slots in the ventilation cover has been removed.

From the connector intended for connecting the Unicom-Dual to the transceiver (8), I removed the case, since otherwise it would not fit in the available free space, and connected it to the transceiver connectors with short cables brought out through the hole in the battery compartment cover. A view of the rear wall of the transceiver is shown in fig. 2 (1 - access to the computer).

Controlling the FT-897D transceiver via USB
Fig. 2

Now a computer connected to the transceiver "sees" through the USB hub two COM ports of the Unicom-Dual interface, a sound card and a "flash drive" on which all drivers, a hardware log, a description of the transceiver, as well as a lot of necessary information are recorded. This is very convenient when using someone else's computer on an expedition.

Author: Alexander Chernyak

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