RF BRIDGE 0.1 - 3000 MHz
With this known RF SWR Bridge board you can measure in thru-mode filters, amplifiers and in reflective mode antennas, impedances, inductance, capacitance and impedance matchings and much more.
Topography of PCB of this SWR Bridge was designed by David Fainitski and it was published in open source on his web site here
Last measurement showed that this RF Bridge works great even up to 3000 MHz !
Using ANRITSU RF Vector Analyzer I did a lab measurements of Directivity of this known RF SWR Bridge. So as we can see on the graph above we can use this SWR RF Bridge for ideal measurement of well-matched devices up to 1000 MHz. Then up to 2500 MHz this bridge can be used for reliable measurement and even up to3000 MHz it is usable for indicative measurement.
Not bad for such low cost device, isn't it ?
You can use it with HiQSDR or compatible SDR Transceivers with N2ADR software and NWT series of USB RF Analyzers or any other RF signal sources with detector.
This RF Bridge comes with the red protective caps on its SMA connectors.
Click on the circuit and get it large.
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Click the button below and buy RF Bridge for 10 USD + 5 USD shipping.