WebSep 1, 2001 · Sep 1, 2001. #1. Antenna Building. A 72 ohm vertical dipole antenna. Step 1: Take 2,953 and divide it by the frequency in Megahertz that you want to. listen to (eg. 2953/144Mhz = 20.5 inches). This is 1/4th of a wavelength. WebFeb 6, 2024 · Joined. Nov 17, 2004. Messages. 2,270. Feb 1, 2024. #1. As a random project, I decided to modify a cheap/unused 144/430 MHz Nagoya NA-771 antenna I had lying around to work best on 700 MHz. I cut the element down to about 7.27" to perform ideally on 772 MHz (middle of the 700 MHz repeater output range) as per KD4SAI's …
Custom Modified 700 MHz Scanner Antenna - RadioReference.com Forums
WebSuper easy!!! You can make this Wifi antenna to extend your Wifi range by hand. First, cut the bottom off of an empty soda can. Next, punch a hole through the center of the can's bottom and screw in your new antenna connector, using a screwdriver. Finally, pierce a hole through each end of the can using a hand drill. WebApr 20, 2013 · How to Build a Gray-Hoverman Super Antenna Putting it together is easy. In addition to the foam core board and copper tape, you'll also need a really cheap balun transformer (which you can get at any … flight lo29
Build A Phased-Array Radar In Your Garage That Sees …
WebMar 20, 2024 · The antennas use a 24 volt power supply with a resistor to limit the current to the I think 12 volt relays. I am also interested in the super scanner antenna, so when … WebApr 7, 2015 · To make the low-cost student built radar kits we added a pair of microwave switches and used a switched-array layout nearly identical to the thru-wall radar. These … WebThis guide will teach you how to make a durable discone antenna aimed at the rtlsdr crowd. I will show you how to build a complete discone antenna with just materials from home … flight load checker