Blank Frank`s RS232 - Lowe HF-225 interface

  
If you have access to a Lowe HF-225 shortwave receiver, then you might be interested in this page. If you don`t, then you`d probably be better off leaving now. What follows is a project I completed some time ago, which allows the Lowe HF-225 to be controlled from a PC, or other device with an available RS232 port. The Rx has an input for a remote keypad, and, consequently, was begging for me to hook my PC up to it. I don`t feel the need to spell out the advantages, since you obviously understand or you wouldn`t have found this page. In summary though, the combination of hardware and software presented here allows me to select frequencies using mouse clicks, configure preset frequency buttons , log significant events and scan up and down through the frequency range using predetermined step sizes and rates.
Blank Frank`s RS232 - Lowe HF-225 interface - schematic




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