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K Sections => K3/4 - Waveform Analysis & RF Generation => Topic started by: PurelyNonsense on 03-23-2017 -- 11:06:43

Title: Low Frequency VSWR measurements
Post by: PurelyNonsense on 03-23-2017 -- 11:06:43
Good afternoon all,
I wanted to know if anyone on here has a good method for measuring VSWR below 10 MHz. I need it for 450 kHz up to 1 GHz. From 10 MHz and up, we have a VSWR bridge by Anritsu but I'll need it lower. Is there a good bridge out there? Or a good method that I'm missing? Thanks.
Title: Re: Low Frequency VSWR measurements
Post by: Hawaii596 on 03-23-2017 -- 13:28:32
Agilent 86205A is good from 300 kHz to 6 GHz. Simple to use.
Title: Re: Low Frequency VSWR measurements
Post by: microwave-kevin on 11-06-2017 -- 22:00:17
The Anritsu / Wiltron bridge is about -40dB so that will give you 1.02, the special option bridge will give you > 46 dB 1.01, what are you looking for. If you are below 10MHz treat everything as DC/AC not K3-K4.

tex
Title: Re: Low Frequency VSWR measurements
Post by: dminesinger on 11-06-2017 -- 22:16:49
HP/8721A, 100 kHz to 100 MHz.
Title: Re: Low Frequency VSWR measurements
Post by: briansalomon on 11-07-2017 -- 18:14:13
A Keysight N9913A Fieldfox will give you a readout in VSWR down to 30Khz.

http://www.keysight.com/en/pdx-x201901-pn-N9913A/fieldfox-handheld-microwave-analyzer-4-ghz?cc=US&lc=eng


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