6x2 Antenna switch control

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!!Rear side [https://remoteqth.com/img/wiki-6x2-rear.png|noborder] * '''DC POWER''' - input jack 5,5/2,1 mm size for DC power between 12-14 Volts. Same Power on pin8 ANT outputs. * '''ETHERNET''' - OPTIONAL module for controlled switch manual over simple web page. * '''microSD''' - not implemented. * '''BCD IN''' - band data inputs activate two levels, dependency to JP8 jumper ** HIGH - TTL voltage input ** LOW - grounded input (contains own 1k pull up resistor) * '''PTT TRX''' - grounded activate input PTT from transceiver (contains own 1k pull up resistor) * '''PTT PA''' - PTT continues from TRX to this output for power amplifier. If detect collision between inputs band, this output will be deactivate. * '''ANT''' - six outputs, will be in two levels dependency to preset JP1 and JP2 jumper. Also 12V DC power and ground available. ** ULN if use internal driver ULN2803A - open collector 500 mA each outputs ** UDN if use internal source 12V power driver UDN2580A.
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