On Oct 19, 6:03 pm, John Miller wrote:
Perfect for any SW portable, Sony's legendary ANLP 1 window loop
active antenna with clip and suction cup. Great condition, with copy
of manual, complete except NO CARRY CASE. Includes optional filter
unit.

Sorry no PP cash, check or MO.

US sales only.

$75 shipped.

What is this optional filter unit?

junius