This evening, I did the 'EasyFix1' on my V1.2 LimeSDR - - the same fix that @sdr_research suggested TWO DAYS AGO - - which was REALLY EASY to do - removing ONE SMT coil (MN18) from the board at the RX1_L Port that was in parallel with the matching transformer. The results WERE ASTOUNDING!!! Here are the BEFORE and AFTER pictures on the 40m Band this evening:
BEFORE on 40m:
AFTER on 40m:
...and here is the AM Band that we could NEVER get before....
..Finally, here are two pictures of the 75m Band that was VERY marginal before, but looks GREAT now..!!:
So, Ladies and Gentlemen...GO HEAT UP YOUR SOLDERING IRONS AND REMOVE THAT MN18 COIL!! It will make your LimeSDR work like a CHARM on HF and you can even receive the US AM Radio Band, too..!!
Obviously I need to do more refined testing, but I'm here to tell you - - THE LIME LIVES ON HF!!!
de Marty, KN0CK