I am a novice and discovers with astonishment this because the mountain range is outstanding and I do not expect such a good result with antennas 43 cms: Diamond NR770S fixed in case mounted with an elbow PL Angled M / F the other box mounted on a buggy with HP-AC / U (do search on Google) I am not an expert, nor amateur radio, so I used the basic functions with a transmission on VHF and IDCS coding (8,9,10,11 menu) Advanced features are complex especially with a manual in English and in French nothing: this is the point of the product BIG negative.
Warning especially for the uninitiated not to choose frequencies that disrupt VHF UHF professional because this device far exceeds the frequencies authorized in France ....! In theory requires a license for Amateur Radio use this product. So use caution and intelligently without disrupting marine bands, aviations etc ....
Great product for me :), remains just evaluate its durability over time