This jumper module is used with SLCAB8R radio cable. It is compatible with virtually all Yaesu radios that have an 8-pin round type Mic jack.
G1 / G2 Jumper Settings - To maintain compatibility with as many radios as possible, this jumper module has two small jumpers that can be set to provide additional Ground ("G") connections needed by some radios (see below). These two jumpers should be installed as follows for the following radios only. Do *NOT* install either jumper if your radio isn't listed below:
Both jumpers "G1" and "G2" should be installed for the FT-890, FT-980, FT-990, FT-1000 and the FT-1000D.
Only jumper "G1" should be installed for the FT-847, FT-920, FT-950, FT-1000MP, FT-DX1200, and FT-DX5000.