40M NVIS Inverted-V Antenna SWR Test: 6-1/2' vs 10' AGL

Build and setup a 40M Dipole Antenna for Near Vertical Incident Skywave (NVIS) configuration to have local, statewide & regional communications. I setup the antenna in a 3-1/2 ft horizontal layout and then raise the center feed point to 6-1/2 ft and then finally raise it to 10 ft height Inverted-V. We measure and compare the SWR readings using a RigExpert Antenna Analyzer. #nvis Note: Antenna dimensions are starting values only. Local soil conditions, terrain, installation height, and the surrounding environment can affect resonance and SWR. Always verify and fine-tune your antenna using an antenna analyzer. Antenna Building Supplies TUOFENG 20 AWG Electrical Wire 400 Feet Stranded Wire [200 ft Black and 200 ft Red] Flexible Silicone Wire 20 Gauge Hook Up Wire Cable of Tinned Copper Wires https://amzn.to/4eOMDQo BNTECHGO 18 Gauge Silicone Wire Spool 250 ft Green Flexible 18 AWG Stranded Tinned Copper Wire https://amzn.to/3R2ebrJ BNTECHGO 26 Gauge Silicone Wire Spool 250 ft Red Flexible 26 AWG Stranded Tinned Copper Wire https://amzn.to/4dLILhS HRLORKC 10pcs Right Angle Speaker Plugs 4mm/0.16" 90 Degree Connector Right Angle Banana Plugs for Speaker Wire (Red and Black) https://amzn.to/4tCppAy 96 Pcs Heat Shrink Wire Connectors Kit- Electrical Waterproof Crimp Terminals Set- Insulated Rings https://amzn.to/4ufZDn1 Plustool Crimping Tool for Heat Shrink Connectors AWG22-10, Ratcheting Wire Terminal Crimper https://amzn.to/4wxhBCK LAND 165FT/50M Fiberglass Tape Measure - Dual-Inch/Metric Scale, Lightweight & Durable, Portable Long Measuring Tape https://amzn.to/4twTcut Bonsicoky 10 Pcs M5 Stainless Steel Single Wire Rope Clips https://amzn.to/3Ra3rYd 150A Watt Meter Power Analyzer, High Precision RC with Digital LCD Screen&2 Sets of 45amp Power Pole Connectors https://amzn.to/4nFpBh9 12 Pack 2" Carabiner Clip Plastic S Carabiner Clips https://amzn.to/4tzz7Uk Cutelec Rope Winder 2pcs Paracord Line Winder Rope and Cord Organizer Rope Winder 6" Random Color Parachute Cord Keeper Rope Organizer Spool Tool for Paracord, Rope, Twine, & Mason Line https://amzn.to/438LLif Tenkara Rod Telescopic Fishing Rod-Ultra Short Telescopic Fishing Tenkara Rod Portable Collapsible Bass Crappie Full Kit Carbon Fiber Fishing Pole https://amzn.to/4dblEx8 onelinkmore BNC Female to Dual Banana Female Socket Binding Post RF Coax Splitter Adapter Connector for HF Radio Antennas Pack of 2 https://amzn.to/3PIoHnx Line Winder Rope and Cord Organizer Rope Winder Paracord Cord Keeper Rope Organizer Spool Tool Prevent Knots Recoils and Kinks (10pack) https://amzn.to/4fmt41R XHF UL Listed 1/4 in 20Ft 3:1 Waterproof Heat Shrink Tubing Marine Grade Wire Cable Adhesive Lined Tube Insulation https://amzn.to/4nuNbgx TKDMR 10pcs Insulated 4mm Banana Jack Female to Female Socket Connectors - Coupler for 4MM Banana Plug https://amzn.to/3Rn1DuX Bonsicoky 8mm Socket Wrench Screwdriver, High-Carbon Steel Hex Nut Driver https://amzn.to/4dIlSvQ Blulu 1 Pcs Cross Base for Tear Drop/Feather Flags Adjustable Free Spin X-Base Mount Portable Flagpole Feather Flag Stand https://amzn.to/4fo2PIv 24 ft Long Telescoping Extension Pole // Multi-Purpose Extendable Pole with Universal Twist-on Metal Tip // Lightweight and Sturdy https://amzn.to/439LqMh BNC SMA Coax Connector SMA Male to BNC Female Coaxial Connector Low Loss Coax Adapter for RF Antennas https://amzn.to/4uKY6Fe BNC Female to Female Adapter Connector (5 Pack), 50 Ohm Gold-Plated Copper RF Coaxial Barrel Connector https://amzn.to/42BHkwq BNC Female to UHF Male Adapter, 50 Ohm Brass PL259 Coax Connector https://amzn.to/49K4bJR SMA Female to BNC Male Adapter - Male to Female Coaxial (RF) Connector https://amzn.to/3RoEAQs RRR Antenna 2 Pack Large Antenna Wire Winders (Green) https://amzn.to/4tElvav HF End Fed Antenna, 4 Band 8 Band 1MHz to 30MHz 100W Power End Fed Radio Antenna https://amzn.to/4udzSn5 BNC Male Plug to 2X 4mm Dual Banana Female Jack Socket Binding Post RF Coax Coaxial Splitter Connector BNC Banana Adapter for HF Radio Antennas https://amzn.to/3R6UEGB 50pcs Cable Ties Reusable Fastening Wire Organizer Cord Rope Holder 7 Inch (Black https://amzn.to/4uVdyim DEWALT TSTAK Tool Storage Organizer, Long Handle (DWST17808) https://amzn.to/4ug2psr DEWALT Tool Box TSTAK II, 13 In. Flat Top Tool Storage Case, Stackable Organizer Hard Case Portable Toolbox, Heavy Duty, Holds Up To 66 lbs (DWST17807) https://amzn.to/3R9yMKG DEWALT Tool Organizer Foam Insert (DWST88801) https://amzn.to/438WnxA DEWALT Tool Organizer, TSTAK III, Single Deep Drawer, Heavy Duty Latches, Removable Compartments for Small Tools and Accessories (DWST17803) https://amzn.to/4nAUZ0q DEWALT Tool Tote, TSTAK System (DWST17809) https://amzn.to/4nAVZSe DEWALT Tool Box with Wheels Modular, Large Rolling Tool Box With Telescopic Handle, Portable Carrier Deep Stackable TSTAK Storage (DWST17820) https://amzn.to/3RHS1uQ