2 Elements on 10M / 2 Element on 12M / 2 Elements on 15M / 2 Elements on 17M / 2 Elements on 20M / 12ft Boom
JK Antennas Navassa-5 Multi-Band Yagis interlace full-size 20, 17, 15, 12 and 10-meter elements on a single 12 ft. boom with a rugged 2 in. diameter. Named after the Navassa Island DXpedition, these antennas are based on a collaborative design effort by Daniel Horvat, E73M/N4EXA and JK Antennas.
JK’s unique design places full-size elements on a single boom and produces amazing 2-element mono-band performance on all 5 high bands! This results in producing good gain and great SWR bandwidth on all 5 bands. An optional 6-meter kit adds 2-more elements to make these antennas work on the 50 MHz Magic Band.
* Boom Length: 12 ft.
* Boom Diameter: 2.0 in.
* Wind Area: 8.97 Sq. ft.
* Maximum Wind Speed: 100 MPH
* Maximum Turning Radius: 19.45 ft.
* Longest Element: 36.8 ft.
* Element Construction: Stainless-steel through-bolts (no rivets or worm clamps)
* Mast size: Heavy duty U-Bolts supplied for 2 in. OD Masts
* Approximate Weight: 59 lbs.
* Power Handling: 5,000 watts (limited by balun selected)
* 1:1 Balun is required (not supplied)
These antennas have been designed to give the ham radio operator an excellent antenna for operation on all 5 high bands with automatic band switching and a single feed line. The short boom length was employed to keep the antenna compact and the installation simple. Navassa-5 antennas use direct 50-ohm coaxial feed with the all driven elements connected by a robust metal strap balanced transmission line. A high-quality 1:1 current balun is required. The COMTEK COM-BAL-11150DT is recommended for full power handling and best performance.
Like all JK Antennas, Navassa-5 beams are manufactured with high quality materials and hardware; like their larger low-band Yagis. A 1/4 in. (6mm) thick mast plate and all mounting hardware is included with these antennas.
When you think about working DX on the WARC and Classic High Bands using a high-performance Yagi, think about JK Antennas Navassa-5 Multi-Band Yagis.
|Gain at 65ft above ground||12.56 dbi||12.4 dbi||11.79 dbi||11.82 dbi||11.39 dbi||12.44 dbi|
|Gain in Freespace||7.0 dBi||6.8 dBi||6.24 dBi||6.36 dBi||6.2 dBi||6.65 dBi|
|Peak F/B||12 dB||12 dB||12 dB||12 dB||12 dB||16 dB|
|Peak F/R||12 dB||12 dB||12 dB||12 dB||12 dB||16 dB|
|2:1 SWR Bandwidth||800 Khz||Less than 1.5:1||450KHz||Less than 1.5:1||Less than 1.5:1||800 KHz|
|1.5:1 SWR Bandwidth||600 KHz||100 KHz||350 KHz||100KHz||350KHz||600 KHz|
|Max Element Length||18.7 ft||19.8 ft||24 ft||28.2 ft||36.8 ft||9.4 ft|
** All pricing shown assumes the basic mounting hardware. Additional costs may apply for customized mast plates and hardware.
** Pricing shown above includes Mast Plate and mounting hardware
Price : US$1,285.00 **
An auxiliary cable that helps to support a metal platform above the Arecibo Observatory radio telescope’s reflector dish in Puerto Rico snapped in the early morning hours of August 10, causing a 100-foot gash in the reflector dish. Operatio... Read more
“Jim Heath W6LG shows his newly installed antenna and tower at his residence. The tower has a maximum height of 30 feet as restricted by Placer County Ordinances as show in the County General Plan and adopted by the City Rocklin. The... Read more
Elecraft K4 ” “Congratulations to the QSO Today Virtual Ham EXPO Team! A very successful event that was a lot of fun for all of us here a... Read more