Dual Alford Slot Antenna
post 19 Dec 2021
Antenna for UHF VHF Links →
VHF-UHF Yagi Antenna Feed Design
Balanced feed line are readily available in various impedances 75/300/450 ohms, but the use of a balanced feedline presents some physical requirements that are not easy to get around
Yagi 7 el. Per 70 cm. Ecologica
La lunghezza totale del boom e' di circa 1m. poiche' dietro al riflettore e' previsto il fissaggio al mast. La sezione e' 1 x 2 cm
Yagi 9 elements
The first director can be moved forward or backward to search for the best ROS
6-Element yagi for 144 MHz
The design has been performed using yagimax2 software and practical tests. I created several prototypes before I found out the correct measurement
7 Elements Yagi for 146Mhz
7 Elements yagi configured in vertical 2 stacked antenna tuning
154
Balanced feed line are readily available in various impedances 75/300/450 ohms, but the use of a balanced feedline presents some physical requirements that are not easy to get around
La lunghezza totale del boom e' di circa 1m. poiche' dietro al riflettore e' previsto il fissaggio al mast. La sezione e' 1 x 2 cm
The first director can be moved forward or backward to search for the best ROS
The design has been performed using yagimax2 software and practical tests. I created several prototypes before I found out the correct measurement
7 Elements yagi configured in vertical 2 stacked antenna tuning
Antennas_manufacturers
About Rtty mode
Audio Recording
Amplifiers
Antennas Satellite
Amateur Television ATV
Aprs software
Beacon
Band Plan Ham Radio
Capitals Europe
DX cluster software
Italy provices
Italia-call-ham radio Italy provices Ham Radio Clubs Italy
EME Ham Radio Satellite
Grid Software
Ham shirts
Ham radio Magazine
Log Converter Software
Logs Search Services
Meteor scatter
Microwave
Mac Ham Radio Software
Practice with the soldering
Propagation Solar Cycle
Power Supply
PMR 466Mhz
Packet Radio TNC
PSK31 software
Prefix World
Propagation prediction
Qrp low power
QSL Printing
QRSS Amateur VLF operating
Radio old Museum
Radio portal
Surplus radio
Sstv Photo
SWL Shortwave DX Radio
Telegraph Morse code
VHF Activit
Web SDR