JPC-350 100W HF Vertical Antenna for Ham Radio,80-6 Meters 8 Bands with Slide Regulator, Portable 18.4ft (5.6m) for Field Emergency Outdoor Use

1. 80m Band:Deploy all 3 ground grid sections fully. Retract the ​whip antenna completely, then pull back ≈1 section + 13cm (any section works). Position the sliding contact on the ​red coil within the ​gray-marked area (ensure the contact spring does not touch adjacent coils). Frequency: ​3.550 MHz | SWR: ​1.5:1 2. 40m Band:Ground grid length: ≈8.25m (excess wire coiled on the terminal end using a winding board). Retract the ​whip antenna completely, then pull back ≈36cm. Position the sliding contact on the ​red coil within the ​gold-marked area. Frequency: ​7.070 MHz | SWR: ​1.5:1 3. 20m Band:Ground grid length: ≈4.2m. Retract the ​whip antenna completely, then pull back ​3 bottom sections + 27cm. Position the sliding contact on the ​red coil within the ​white-marked area. Frequency: ​14.200 MHz | SWR: ​1.5:1 4. 17m Band:Ground grid length: ≈3.2m. Retract the ​ ​whip antenna from the bottom: ​6 sections + 18cm. Position the sliding contact on the ​red coil within the ​white-marked area. Frequency: ​18.120 MHz | SWR: ​1.5:1 5. 15m Band:Ground grid length: ​2.6m. Retract the ​whip antenna from the bottom: ​7 sections + 25cm. Position the sliding contact on the ​red coil within the ​white-marked area. Frequency: ​21.200 MHz | SWR: ​1.5:1 6. 12m Band:Ground grid length: ≈2.15m. Retract the ​whip antenna from the bottom: ​8 sections + 37cm. Position the sliding contact on the ​red coil within the ​white-marked area. Frequency: ​24.900 MHz | SWR: ​1.5:1 7. 10m Band:Remove the inductor coil and aluminum radiator; use only the ​whip antenna. Retract from the bottom: ​7 sections + 21cm (ground grid ≈1.95m).Frequency: ​28.490 MHz | SWR: ​1.5:1 Alternatively, ground grid ≈1.75m:Frequency: ​29.350 MHz | SWR: ​1.5:1 8. 6m Band:Use only the ​whip antenna. Retract from the bottom: ​11 sections + 9cm (ground grid ≈1.1m). Frequency: ​52.000 MHz | SWR: ​1.5:1

• 【Extended Frequency Range】: JPC-350 HF vertical antenna operates across 8 bands (80m, 40m, 20m, 17m, 15m, 12m, 10m, 6m), upgraded from JPC-12 with simple structure, easy installation, and stable performance for amateur radio and emergency communication.
• 【Superior Signal Reception】: Building on JPC-12's proven performance, this vertical HF antenna delivers excellent reception quality with reliable signal capture and transmission across all frequency bands.
• 【Lightweight & Portable】: Weighing only 1.5KG, sets up in 5 minutes by one person. Split design enables compact storage and easy transport - ideal for field operations, balconies, or emergency deployments.
• 【Optimized SWR Performance】: Achieves low standing wave ratio (SWR) ≤1.5 across operating frequencies, ensuring maximum signal efficiency for both beginners and experienced ham radio operators.
• 【Durable Construction】: Premium aluminum alloy and stainless steel construction ensures longevity.
• 【Safety note】: Avoid use during thunderstorms or in strong electromagnetic fields to prevent lightning damage.