SCA.9
         With the R71A in the FM mode, tuned to 67 kHz,  I  con-
         nected  the  ICOM's vlf antenna input through a 0.1 ufd
         capacitor2 to the earphone jack of a $16 General  Elec-
         tric AM/FM portable radio, and can now listen in on the
         world of SCA!

         In the first few minutes of tuning around,  I've  heard
         the  Physicians' Network, Muzak, commodity reports, and
         several data transmissions.

         I built a simple SCA interface, consisting of a capaci-
         tor and resistor, into a plastic film canister.

CONTINUED IN SCA.10