Congratulations on the purchase of the IC-502A portable 6 meter SSB transceiver. The IC-502A was designed to be operable anywhere like most portables, but we also included features found in . most base sets like a very effective noise blanker, RIT, S&RF meter, CW monitor, and a full 3 watts output on USB. A highly stable VFO allows operation between 50 MHz and 51 MHz. The aluminum die cast frame provides a very strong yet light housing for the 2 circuit boards, and the aluminum sides snap off easily if service is ever necessary or to change batteries. The IC-502A operates on 9 inexpensive C cell batteries, or an external 13.8V DC source. The IC-502A will also operate on nicad batteries, contained in the BC-20/BC-15 nicad battery/charger kit. For AC operation, we recommend the IC-3PS which not only provides power for the IC-502A, but also doubles as a stand and holder for the IC-50L 10 watt linear amplifier. You can use the built-in whip antenna for portable use, or an external antenna can be connected to the antenna connector on the back of the IC-502A. We are sure that you will have years of lasting enjoyment from your IC-502A, manufactured by the leader in communication equipment: ICOM Incorporated.