JPC-12 7MHz-50MHz 100W Multi Band HF Shortwave GP Antenna QRP For Ham Radio
Product parameters:
1. Packing weight: about 1.35kg Packing size: 36*22*4cm
2. The shrinkage length is about 34.5cm, and the erection length is about 410cm
3. Frequency: can work in 8 bands (7mhz-50mhz) at 40.30.20 17.15.12.10.6 meters.
4. Impedance: 50 (Ω)
5. Rolling power: 100w
6. Longitudinal wave: 40m swr band <1.3, other bands can be adjusted to 1.1
Slider reference data:
Close to the aluminum tube for 4 turns of 7mb, the pull rod retracts about 10cm, and the foot wave is 1.1-1.3
The position of the 14mb slider is close to the side of the rod antenna 6 turns and pulls back about 20cm. Foot wave 1.1-1.3
21.4 Aluminum tube and 4 pole antenna, 7-10cm, vertical wave 1.1-1.3
29.6 As long as the antenna is pulled out from the pole, everyone pulls back about half a section, the standing wave is 1.2
Precautions:
1 Put the ground grid connection ring directly on the screw of the ground anchor and screw it into the base. Then there are the link base - four aluminum tubes - loading coil - rod antenna.
2. In the case of standing wave adjustment, if there is a talent analyzer, first find the lowest point of the standing wave to see whether the resonance frequency is high or low. If the resonant frequency is high, it means that the antenna is short. To lengthen the rod antenna or increase the number of turns of the loading coil, if the resonance frequency is low, shorten the antenna of the rod antenna or reduce the number of turns of the loading coil.
If there is no talent meter, use the standing wave meter that comes 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 knob, and search for each frequency band. The minimum point of standing wave, look at the level of resonance frequency, and then use the above method to adjust
3. When using the ground net, tear 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: Load coil is processed by opening mold instead of manual manufacturing)
1 x Ground Anchor 10 x 240 mm (not plated to maintain 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 customized)
1 x 10-strand Ground Wire Cable (tear as needed when using; generally tear 3 strands)
1 x Cloth Bag
Shipping Information:
Free Quick Shipping to USA.
Estimated Time of Arrival: within 3-8 working days.
Warranty:
1.Customers have the right to request a return within 60 days from the date of product receipt.
2.At Itopteng, we offer prompt customer service to assist with product usage inquiries and facilitate returns or refunds.
JPC-12 7MHz-50MHz 100W Multi Band HF Shortwave GP Antenna QRP For Ham Radio
Product parameters:
1. Packing weight: about 1.35kg Packing size: 36*22*4cm
2. The shrinkage length is about 34.5cm, and the erection length is about 410cm
3. Frequency: can work in 8 bands (7mhz-50mhz) at 40.30.20 17.15.12.10.6 meters.
4. Impedance: 50 (Ω)
5. Rolling power: 100w
6. Longitudinal wave: 40m swr band <1.3, other bands can be adjusted to 1.1
Slider reference data:
Close to the aluminum tube for 4 turns of 7mb, the pull rod retracts about 10cm, and the foot wave is 1.1-1.3
The position of the 14mb slider is close to the side of the rod antenna 6 turns and pulls back about 20cm. Foot wave 1.1-1.3
21.4 Aluminum tube and 4 pole antenna, 7-10cm, vertical wave 1.1-1.3
29.6 As long as the antenna is pulled out from the pole, everyone pulls back about half a section, the standing wave is 1.2
Precautions:
1 Put the ground grid connection ring directly on the screw of the ground anchor and screw it into the base. Then there are the link base - four aluminum tubes - loading coil - rod antenna.
2. In the case of standing wave adjustment, if there is a talent analyzer, first find the lowest point of the standing wave to see whether the resonance frequency is high or low. If the resonant frequency is high, it means that the antenna is short. To lengthen the rod antenna or increase the number of turns of the loading coil, if the resonance frequency is low, shorten the antenna of the rod antenna or reduce the number of turns of the loading coil.
If there is no talent meter, use the standing wave meter that comes 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 knob, and search for each frequency band. The minimum point of standing wave, look at the level of resonance frequency, and then use the above method to adjust
3. When using the ground net, tear 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: Load coil is processed by opening mold instead of manual manufacturing)
1 x Ground Anchor 10 x 240 mm (not plated to maintain 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 customized)
1 x 10-strand Ground Wire Cable (tear as needed when using; generally tear 3 strands)
1 x Cloth Bag
Shipping Information:
Free Quick Shipping to USA.
Estimated Time of Arrival: within 3-8 working days.
Warranty:
1.Customers have the right to request a return within 60 days from the date of product receipt.
2.At Itopteng, we offer prompt customer service to assist with product usage inquiries and facilitate returns or refunds.
A
Charges fast, works great, and the magnet is strong. The lifetime warranty is a huge bonus! If you’re looking for a reliable, high-quality charger with unbeatable warranty protection, this is the one to get! Highly recommend.
A
As advertised. Looks so classic and exactly as the good old days of transistor radios...the real transistor 😎 Size is big enough...see pictures. Sound is deep and full of base. Good reception of radio bands. Has Bluetooth and USB too but didn't try them yet. It captured our hearts my wife and I. Really recommend. Arrived before delivery date in a well packed package.
A
We love this radio and have it in our kitchen and it brings back nice memories. It’s simple to operate with dial tuning and the FM stations come in clear. The sound is also good and the look and quality is nice. Bluetooth device hook up is a breeze. We are very glad we purchased this radio.
A
Great portable antenna, especially when there isn't something to support a long wire. I've had this for a few months and wound up using this as my Field Day antenna (you can see it off to the right, behind my shelter in the photo below) and I got good results. It's quick and easy to set up, and very portable with it's nicely organized case. I've used this for POTA activations, and POTA hunting with great results.
A
This antenna works great, and great for the price, I'm pretty sure its the same antenna that HRO and DX engineering sell as "their" brand. The 20M and 40M tuning marks on the coil will get you pretty close to where you need to be with good SWR, you can also take the coil off and adjust the whip to work 17m, 15m 12m and 10m. I took the ground radio ribbon cable and split it into 5 sections of 2 strands and spread it out into a star strutcure I used this QRP CW at a state park in New York for about 2 hours and made 25 contacts several to the west coast and 2 DX contacts!
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