JK801 - Rotatable 80 / 75 m band dipole
The JK801 is a motorized inductance coil loaded as well as end capactive loaded rotatable dipole, with a small footprint, giving great performance on 80M. This antenna is made for the Ham operator that is looking for a compact dipole antenna to work on 80M. The best performance of this dipole is achieved at approx 130Ft or higher.
It is made with very high quality materials and the best in its class in the market in terms of mechanical construction and electrical performance.
This Dipole has a good 40 kHz bandwidth for each setting on the motorized inductor. The motorized inductor gives this dipole a full band coverage of 1:1 SWR on 80 m. This is achieved with a screw driver antenna type controller in the radio shack.
Radiation pattern at 155 feet (47.24 m above average ground
NEC image of the antenna.
Approx wt. = 77 lb (35 kg)
Wind Area = 3.8 sqft (0.35 m2)
Max Wind Speed = 100 Mph (161 kph)
Max Turning Radius = 27.5 ft (3.38 m)
Total Element length = 55 ft (16.76 m)
Feedpoint = 50-Ohm Direct
Power = 5 kW Average or Balun restricted
Average Gain = 1.87 dBi (Freespace)
Average Gain = 7.64 dBi @28 degrees elevation @130 ft (39.6 m) above ground
Average Gain = 7.97 dBi (155 ft (47 m) @23 deg) Avg. ground
SWR Bandwidth 2:1 = 40 kHz (each setting)
1:1 SWR full band coverage with each setting on motorized inductance coil.
*** Parts Needed but not supplied with the Antenna : Control Cable and Screwdriver type antenna
controller (Example MFJ-1924). ***
Tuning device (Motorized inductance coil)
JK801 - Rotatable 80/75 m band dipole
- Brand: JK Antennas
- Product Code: JK801
- Availability: In Stock