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Antenna Bi-Bande 144/432Mhz
The boom being in 4 parts, the antenna is easily transported in a small car
post 27 Sep 2024
Antenna for UHF VHF Links →
10 El.Homebrew UHF Yagi for Satellites
Ideal relationship between length & Gain... for 3-4 DBd more Gain we need in practice about a double Boom in length and much higher number of Elements
144 mhz long yagi constrution details
Uses .125' 3.175 mm diameter aluminum elements, which are to be supported on two parallel non conducting lines that will not stretch
2 meter Halo antenna
Flat aluminium bar is the easiest material to make an antenna with as it is easy to bend and if 3 mm or more thick, is strong enough for most applications at VHF and UHF
150
Ideal relationship between length & Gain... for 3-4 DBd more Gain we need in practice about a double Boom in length and much higher number of Elements
Uses .125' 3.175 mm diameter aluminum elements, which are to be supported on two parallel non conducting lines that will not stretch
Flat aluminium bar is the easiest material to make an antenna with as it is easy to bend and if 3 mm or more thick, is strong enough for most applications at VHF and UHF
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica
Conrad Electronic Electronic components online shop in German and Italian