Description
JPC-12 7MHz-50MHz 100W Multiband HF Shortwave GP Antenna QRP for Amateur Radio
Product parameters:
1. Package weight: approx. 1.35 kg Package size: 36 * 22 * 4 cm
2. The shrinking length is approximately 34.5 cm and the erect length is approximately 410 cm.
3. Frequency: can operate in 8 bands (7 MHz-50 MHz) at 40, 30, 20, 17, 15, 12, 10, 6 meters.
4. Impedance: 50 (Ω)
5. Rolling power: 100 W
6. Longitudinal wave: 40 m SWR band <1.3, other bands can be set to 1.1
Slider reference data:
Near the aluminum tube, for 4 turns of 7 MB, the pull rod retracts about 10 cm and the foot shaft is 1.1-1.3
The 14 MB slider is positioned 6 turns close to the side of the rod antenna and retracts approximately 20 cm. Foot wave 1.1-1.3
21.4 Aluminum tube and 4-pole antenna, 7-10 cm, vertical wave 1.1-1.3
29.6 As long as the antenna is being pulled out of the mast, all components retract approximately half a distance; the standing wave measures 1.2
Precautions:
1. Place the ground grid connection ring directly onto the screw of the ground anchor and screw it into the base. Then there is the connecting base - four aluminum tubes - charging coil - rod antenna.
2. In the case of SWR matching, if a frequency analyzer is available, first find the lowest point of the SWR to see if the resonant frequency is high or low. If the resonant frequency is high, this means the antenna is too short. To lengthen the whip antenna or increase the number of turns in the loading coil, shorten the whip antenna or reduce the number of turns in the loading coil if the resonant frequency is low.
If no talent meter is available, use the SWR meter supplied with the radio, set it to FM, AM, or RTTY mode, reduce the transmit power to about 10 watts, press the transmit button, adjust the radio frequency control, and scan for each frequency band. Observe the minimum point of the standing wave, and then use the adjustment method described above.
3. If using the grounding grid, tear off 3-4 sections. The antenna impedance can be changed by adjusting the angle of the grounding grid.
Package contents:
1 x Aluminum alloy base (black anodized)
1 x Multiband charging coil (40 m - 10 m; Material: Nylon. Note: The charging coil is manufactured by opening a mold rather than by manual production)
1 x ground anchor 10 x 240 mm (unplated to ensure good grounding)
4 x Alumina Tubes Black 19 x 320 mm (Anode Sandblasting Oxidation)
1 x 2.5 m stainless steel telescopic antenna (thickness can be adjusted)
1 x 10-core grounding cable (tear as needed when used; usually tear 3 strands)
1 x fabric bag
Product parameters:
1. Package weight: approx. 1.35 kg Package size: 36 * 22 * 4 cm
2. The shrinking length is approximately 34.5 cm and the erect length is approximately 410 cm.
3. Frequency: can operate in 8 bands (7 MHz-50 MHz) at 40, 30, 20, 17, 15, 12, 10, 6 meters.
4. Impedance: 50 (Ω)
5. Rolling power: 100 W
6. Longitudinal wave: 40 m SWR band <1.3, other bands can be set to 1.1
Slider reference data:
Near the aluminum tube, for 4 turns of 7 MB, the pull rod retracts about 10 cm and the foot shaft is 1.1-1.3
The 14 MB slider is positioned 6 turns close to the side of the rod antenna and retracts approximately 20 cm. Foot wave 1.1-1.3
21.4 Aluminum tube and 4-pole antenna, 7-10 cm, vertical wave 1.1-1.3
29.6 As long as the antenna is being pulled out of the mast, all components retract approximately half a distance; the standing wave measures 1.2
Precautions:
1. Place the ground grid connection ring directly onto the screw of the ground anchor and screw it into the base. Then there is the connecting base - four aluminum tubes - charging coil - rod antenna.
2. In the case of SWR matching, if a frequency analyzer is available, first find the lowest point of the SWR to see if the resonant frequency is high or low. If the resonant frequency is high, this means the antenna is too short. To lengthen the whip antenna or increase the number of turns in the loading coil, shorten the whip antenna or reduce the number of turns in the loading coil if the resonant frequency is low.
If no talent meter is available, use the SWR meter supplied with the radio, set it to FM, AM, or RTTY mode, reduce the transmit power to about 10 watts, press the transmit button, adjust the radio frequency control, and scan for each frequency band. Observe the minimum point of the standing wave, and then use the adjustment method described above.
3. If using the grounding grid, tear off 3-4 sections. The antenna impedance can be changed by adjusting the angle of the grounding grid.
Package contents:
1 x Aluminum alloy base (black anodized)
1 x Multiband charging coil (40 m - 10 m; Material: Nylon. Note: The charging coil is manufactured by opening a mold rather than by manual production)
1 x ground anchor 10 x 240 mm (unplated to ensure good grounding)
4 x Alumina Tubes Black 19 x 320 mm (Anode Sandblasting Oxidation)
1 x 2.5 m stainless steel telescopic antenna (thickness can be adjusted)
1 x 10-core grounding cable (tear as needed when used; usually tear 3 strands)
1 x fabric bag