General Frequency Range Rx 0.030-29.999999 MHz*1 Tx 1.800-1.999999 MHz*2 3.500-3.999999 MHz*2 (varies with version) *1guaranteed range: 0.5-29.999999 MHz *2varies according to version Mode USB, LSB, CW, RTTY (FSK), AM No. of memory channels 101 (99 regular, 2 scan edges) Frequency resolution 1 Hz Frequency stability Less than ±200 Hz from 1 minute to 60 minutes after power on. After that rate of stability less than ±30 Hz/hr. at +25°C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ±350 Hz Power supply requirement 13.8 V DC ±15% (negative ground) Current drain (at 13.8 V DC) Receive Transmit Stand-by 1.3A max audio 2.0A max. power 20.0A Usable temperature range -10°C to +60°C (+14°F to +140°F) Antenna connector SO-239 (50Ω) Dimensions (projections not included) 240mm (W) x 95mm (H) x 239mm (D); 97/16in (W) x 33/4in (H) x 913/32in (D) Weight 3.8 kg; 8 lb 6 oz ACC connector 13-pin REMOTE connector 2-conductor 3.5 (d) mm; (1/8") Transmitter Modulation system SSB AM