Band decoder ICOM LPF amplifier antenna switch with 8 pin connecto
BAND DECODER FOR ICOM RADIOS with 8 pin connector
Band decoder connects to the rig via an accessory connector (usually ACC2) on the back of the transceiver. The output open-emitter shorts to the ground the band terminal determined by band voltage signal came from the radio.
WARC bands are combined as follows: 10/14, 18/21 24/28 MHz.
The DC voltage to control is up to 50 V with max current 1.0 A .
The R4 resistor value may be varied between 2.2 – 4.7 KOhm to provide the stable decoding of 10m voltage.
PTT, ALC, +13.8 V and GND lines are coming through to control the amplifier.
Size 55 x 32 x 15(h) mm