My original Bridges you can buy ONLY here in my web store or in my eBay store!
I am not supplying these Bridges to other sellers.
There are a lot of fake Bridges available on Ebay or in other online auctions. There is the fake product from China there! They even printed my web store URL on their fake Bridges.
So if you bought the fake bridge on eBay do not ask me why it is not working. I will do not answer on this question and you will be blocked by spam filter. Ask about the seller you bought it from.
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.
We take PayPal and you can pay pushing "Buy Now" button.
Click the button below and buy RF Bridge for 15 USD + 5 USD shipping.