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
September's transmitter hunt will be on the 11th and starts at the Southern starting point at 7pm, staging & mileages will be taken at 6:30pm. Coordination or assistance is on the H2 (Apex) repeater 449.925 (-) pl 131.8Hz .
