The large clear Led is the TX indicator and protrudes through the top of the metal enclosure holding the Arduino Uno board.
The bolt, seen here between the padlock /chain rings…..is the external ON/OFF switch, see below.
Las Vegas Transmitter Hunters
April's Transmitter hunt is on the 10th and starts at the Southern starting point at 2pm, staging & mileages will be taken at 1:30pm. Coordination or assistance is on the H2 repeater 449.925 (-) pl 131.8Hz . Andy KJ7RFN will be hiding the transmitter.
