Re: Transmit indicator light.
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Hi Gary. ? I¡¯ve been kind of busy and just got around to checking out this link.? It didn¡¯t lead me to anything useful.? ? Regards. ? Max K 4 O D S. ? I've Never Lost the Wonder. ? Antique Electronics Site: ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Gary Anderson
Sent: Thursday, April 19, 2018 6:03 AM
To: [email protected]
Subject: Re: [BITX20] Transmit indicator light. ? Hi Max,
I'm assuming that you have an enclosure from Sunil (VU3SUA) by the description.? He has pictures on his website showing how he has done the? RX/TX LED wire-up.
The website is??the pictures are the second and third from the last.
He is picking up the 12V RX and TX control signals from the uBITX RX/TX relay by soldering wires to the bottom of the uBITX PCB.? He also picks up the ground from the relay.? He then routes 3 wires (RX,TX,GND) to a small prototype board with series current limiting resistors on RX and TX.? No reason you couldn't put your resistors anywhere along that route.? I would have put them right on the PCB.
Regards,
Gary
AG5TX
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