Fig. 25
From: Review of the accomplishments of mid-latitude Super Dual Auroral Radar Network (SuperDARN) HF radars
![Fig. 25](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40645-019-0270-5/MediaObjects/40645_2019_270_Fig25_HTML.png)
Range-Time-Parameter plots of elevation angle for beam 7 of the HOK data at 06–12 UT on 23 February 2014 for: uncalibrated (top) and calibrated data (bottom). Adapted from Fig. 6 of Ponomarenko et al. (2015)