Amateur Radio Station: N1UL | North Marco Bay QTH of K5MI
Ulrich L. Rohde
Marco Island Radio Club Station. Trustee N1UL Ulrich L. Rohde
The station also includes an R&S XK2100 and an ICOM 781 transceiver. The RX on the left is an R&S ESVN40 .9 kHz to 3GHz all mode system test receiver for exact signal measurements to 0.1 dB accuracy and the ESH3 test receiver (9 kHz to 30 MHz) next to the XK2100L to measure exact antenna patterns.
In front of the pneumatic mast with yagi is a ship vertical with remote tuner visible.
Pneumatic antenna mast fully retracted to 13 feet (ca 4 meters) - "hurricane friendly position!"
Pneumatic antenna mast extended to full height of 55 feet (ca 18 meters) with SteppIR yagi.
The antenna is made of fiber-glass elements with tuning copper strips inside, that driven with stepper motors mounted to the boom, adjust the strips automatically in length based on the frequency of the transceiver. Thus the antenna is always optimally tuned.