PL259/SO239 Calibration Kit Images




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PL259/SO239 Calibration Kit Schematic








Construction Notes

This PL259/SO239 Calibration Kit is a necessity for making error free measurements of devices with PL259 or SO239 connectors on a Vector Network Analyzer. By measuring known calibration standards (50 Ohm Load, Short and Open circuits) we are able to vectorially subtract the systematic errors from our measurement, significantly enhancing it's accuracy. Once the Calibration Kit was assembled, measurements were taken on the Calibration Kit with a Rohde & Schwarz Vector Network Analyzer to obtain the data needed by a Network Analyzer to utilize it in its Vector Error Correction equation. This all sounds very complicated and the theory of it really is. The good news is that the Calibration Kit is easy to build and anyone with access to a Network Analyzer can make the measurements on the Cal Kit for enty in to your own Vector Network Analyzer. The most important thing is to learn something and have fun building this very useful device. Drop me a line if you find this project helpful or have any questions.





Antenna Switch Parts list


Hammond 1550CBK Die Cast Enclosure Digikey Hammond 1550CBK $11.25
Amphenol 132360 SMA Male 50 Ohm Term (Qty 2) Allied Electronics Termination Image $2.86
Amphenol 202112 SMA Male Short (Quantity 2) Allied Electronics SMA Male Short Image $1.84
PL259 Male to Male adapter (Quantity 3) Universal Radio PL259 Male to Male Image $2.49
SO239 to SMA Female Bulkhead connector (Qty 6) 3w~DIY-cable~kom SO239 to SMA Image $2.50





Project Downloads


PL259/SO239 Calibration Kit Schematic (AutoCad .DWG File) Click here to Download
PL259/SO239 Calibration Kit Schematic (Adobe .PDF File) Click here to Download
PL259/SO239 Calibration Kit Mechanical Drawing (AutoCad .DWG File) Click here to Download
PL259/SO239 Calibration Kit Mechanical Drawing (Adobe .PDF File) Click here to Download
Hammond 1550CBK Die Cast Enclosure Drawing (AutoCad .DWG File) Click here to Download
Hammond 1550CBK Die Cast Enclosure Drawing (Adobe .PDF File) Click here to Download