CX2CO 1966 Uruguay
CX2CO, Ricardo Sierra was on the back of several Gus Browning DXer Magazines. He advertised for Electro-Voice microphones.
CX2CO, one of the world's top rated phone DXer's, writes us that his new E-V Model 664 microphone has resulted in "better and more consistent QSO's." Considering his DX record - over 270 countries - this is indeed quite a statement. He adds that, even under "severe conditions of propagation and interference", most contacts report "normal reception and 100% understanding" of his transmissions. This, CX2CO claims, is due in large measures to the improved modulation provided by his new 664 mike.
QSL K8CX Collection
From the back of "THE DXERS MAGAZINE" by Gus Browning
Issue 67, March 27, 1968