Multi Band HF Portable Antenna for Ham Radio JPC12 7MHz 50MHz 100W 8 Band
Multi Band HF Portable Antenna for Ham Radio JPC12 7MHz 50MHz 100W 8 Band. Features: Brand new and high quality Made of high quality materials, JPC-12 7MHz-50MHz 100W multi-band HF shortwave for GP antenna QRP for amateur radio. Packing weight: about 1.35kg Packing size: 36224cm 2. Shrunken length is about 34.5cm, standing length is about 410cm 3.
Frequency: Can work in 8 frequency bands (7mhz-50mhz) at 40.30.20 17.15.12.10.6 meters. Longitudinal wave: 40m swr frequency band. Slider reference data: Close to the 7mb aluminum tube for 4 turns, retract the lever about 10cm, and the foot wave is 1.1-1.3 The 14mb slider is located 6 turns close to the side of the whip antenna, and pulls back about 20cm. Foot wave 1.1-1.3 21.4 Aluminum tube 4-pole antenna, 7-10cm, vertical wave 1.1-1.3 29.6 As long as the antenna is pulled out from the pole and everyone pulls it back about half a knot, the standing wave is 1.2 Precautions: 1 Put the ground grid connecting ring directly on the screw of the ground anchor and screw it into the base.
Then there is the link base - four aluminum tubes - loading coil - telescopic antenna. When adjusting the standing wave, if you have a analyzer, first find the lowest point of the standing wave to see whether the resonant frequency is high or low. If the resonant frequency is high, it means the antenna is short.Lengthen the telescopic antenna or increase the number of turns of the loading coil. If the resonant frequency is low, shorten the telescopic antenna or reduce the number of turns of the loading coil. At the lowest point of the standing wave, look at the resonant frequency, and then adjust it using the above. When using floor net, tear off 3-4 pieces. The antenna impedance can be changed by adjusting the angle of the ground grid.
Package Included: 1 x Aluminum alloy base (anodized to black) 1 x multi-band load coil 40m - 10m; material: nylon. Note: the load coil is molded and not hand-made 1 x ground anchor 10 x 240 mm (uncoated to maintain good grounding) 4 x black aluminum oxide tubes 19 x 320 mm (anodized sandblasted) 1 x 2.5 m stainless steel telescopic antenna (thickness can be custo mized) 1 x 10 strands of ground wire (tear as needed when using; generally tear 3 strands) 1 x cloth bag Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Also, the each additional item means exactly the the same color and size.