to calculate the length of a half-wave dipole antenna:

L= 468/f

L = total length of dipole per band in feet; and
f = frequency in MHz.



Illustrated above is KC6WDK's simple multiband dipole antenna for 80 and 40 meter operation. The 40 meter section also permits use on 15 meters. The sections are separated by 2' at the far ends of the 40 meter elements. The antenna is made from scrap lengths of insulated wire with the ends twisted together. The 50-ohm RG-58 coax is coiled at the feed point to form a broadband choke balun which prevents antenna currents from flowing back into the transmission line.

Despite the scrounge-and-improvise construction and although only 12 feet off the ground, this antenna performs very well.


***HOME***
***RECEIVER***
***Q-MULTIPLIER***
***2-BAND VFO***
***500mW TRANSMITTER***
***3W 2-BAND TRANSMITTER***
***15 METER CONVERTER***
***15 METER VXO-TUNED TRANSMITTER***
***FIELD STRENGTH METER***
***WATTMETER***
***CRYSTAL TESTER***
***SUPPLIERS***