Ben Witvliet

6 Questions 15 Answers 0 Followers

Questions related from Ben Witvliet

MatLab script to read foF2, fxI, foE and foEs from inosonde SAO-file?

From most Digisonde ionosondes I can download SAO-files containing all the measured and derived values. I only need foF2, fxI, foE and foEs as function of time. Does anyone have a MatLab script to...

14 January 2016 7,853 3 View

Any software that calculates the polarization of downward ionospheric waves?

Is there any software (e.g. ionospheric raytracing software) that produces the polarization of the downcoming waves in ionospheric radio wave propagation?

23 September 2015 9,957 5 View

Can you please help to find as many publications as possible on the interference of wind turbines with 80-800 MHz broadcasts, radio links and radar?

Concerns on interference of wind turbines and wind turbine parks on the distribution of RF broadcast signals, point-to-point radio links and radar are raised from time to time. The interference...

23 March 2015 5,099 2 View

How does one calculate the true power of a noise-like signal that is only a few dB above the (known) receiver noise floor?

I measure the power of RF ambient noise (radio noise) that is captured by the antenna with a sensitive receiver that has an true RMS detector. If the power of the ambient noise is only a few dB...

07 August 2014 5,468 5 View

How do you obtain a 12VDC UPS with linear power supply?

For a research project we need a UPS (Un-interuptible Power Supply or 'no-break') that puts out 12VDC instead of the more common 220VAC. Also it should use a linear voltage regulator in stead of a...

22 July 2014 1,450 3 View

How do I realize a "rat-race" hybrid coupler for HF (3-30 MHz)?

I would like to connect the dipoles of a Turnstile Antenna to the 2 inputs of such a 4-port network, so that an incoming LHCP wave produces a signal at output port 1, and a RCHP wave produces a...

01 July 2014 9,977 15 View