Use of concrete in amateur antennas

Can someone explain what these structures are in my backyard? (Renting) r/landscaping 640x853 pic

Can someone explain what these structures are in my backyard? (Renting) r/landscaping 640x853 picture

Can someone explain what these structures are in my backyard? (Renting) r/landscaping 640x853 pic

Microwaves101 Phased Array Antennas 664x993

Concrete Vibrator used to decrease air voids and increase density r/oddlysatisfying 640x1136

1989 400x516

Build A Phased-Array Radar In Your Garage That Sees Through Walls Hackaday 600x600

Jamesburg Earth Station Can Be Yours for $3 Million 600x330

RIGHT-click here 493x640

These signs are on the door to the roof of my apartment building 640x425

Build A Phased-Array Radar In Your Garage That Sees Through Walls Hackaday 855x492

Registry Titles with Descriptions and Expanded Essays Recording Registry National Recording Preservation Board Programs Library of Congress 1394x468 image

10-62-1 DEFINITIONS 849x740 pic

Title 20 1214x536 image

Integrated Development Ordinance (IDO) Interactive Integrated Development Ordinance 1200x421

Chapter 87 555x359 photo

Chapter 38 797x320

Sensors Free Full-Text Evaluation of Propagation Characteristics Using the Human Body as an Antenna 550x358 picture

The Village Beacon Record - August 25, 2022 by TBR News Media 475x480 photo

10-62-1 DEFINITIONS 807x775

Zoning Ordinance 400x516 pic

Trail Terms 550x413 pic

Russia 750x938

Underground for a new service, 2 transfer switches, 2 generators, load bank, vault for step down transformer, and 2 800 amp spares for later on. All quad feed 600s 640x853 photo

Pirate girl 750x923 image

Zoning Ordinance 615x808

Zoning Ordinance 615x788 photo

Chapter 576x518

What is at the top of the Freedom Tower? 583x1110

PONDERS TAFT-HARTLEY 450x640

Part 11 791x993