ja używam:
http://pl.aliexpress.com/item/Shortwave-antenna-analyzer-talented-MR100-talent/32448368164.html?ws_ab_test=searchweb201556_0,searchweb201602_2_10037_10017_10021_507_10022_10032_10009_10020_10008_10018_10019_101,searchweb201603_1&btsid=adbf0dfc-ae29-467c-9ac9-f458e14010ad |