[hpsdr] [OT] Hermes VNA calibration

[Joe Martin K5SO]

Hi Mike, 

I use the NARDA Model 370BNM 50-ohm terminator (N connector) with my HP network analyzer/S-parameter test set;  it’s flat  over the DC-18GHz range.  

73, Joe K5SO

On Oct 10, 2014, at 7:49 AM, AA8K73 GMail wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> 
> What is a good 50 ohm termination to use for Hermes VNA calibration?
> 
> The open and shorted ones are easy.  When I calibrate with a 50 ohm load and then measure other 50 ohm loads, I get variation.
> 
> I've tried a Decibel DB4303B, Relm T44100, Bird Termaline, and various, small BNC terminators.
> 
> Where can I find a 50 ohm precision terminator that will be flat on HF to 50 MHz?
> 
> 
> Mike - AA8K


 1412959370.0