Belar LP-1A MW loop (broadband mod) Null at 60 and 210 degrees
http://belar.com/AM/lp1.htm
This radio is primarily for MW Broadcast and 160m Amateur Band reception, although the loop does perform up to 5MHz and above at reduced efficiency.
Shortwave AM operation, use 6kc filter, AM
USB, LSB, or CW operation, use 3 kc filter