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FT Meter per Yaesu FT-857 / FT-897


Un simpatico ed utile accessorio e' l’FT Meter per la serie Yaesu FT-857 / FT-897
post 02 Feb 2024
FT Meter per Yaesu FT-857 / FT-897

Swr Meter Links

83



Will a high SWR blow up my transmitter"
Where the energy really goes in an antenna system, Will a high SWR blow up my transmitter?

Wattmetro/ROSmetro automatico 1.8 - 60 MHz
Lo strumento fornisce una misura piuttosto precisa nelle bande HF e VHF fino a 50 MHz, entro un range di potenze compreso fra 5 e 120W

Wattmetre de -60 a +60 dBm et mesureur de champs
Build my wattmeter myself. The option chosen was to make a directional coupler which would take approximately -50 dB from the signal to be measured. 60 dBm 1kW

Led Swr Bridge
An LED SWR bridge is almost always used with an antenna tuner


Linear-loaded-short-dipole-21mhz

Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band

Rx antennas 4Square Rx Vertical Array

Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m

Atu balanced feeder antenna system

Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR