Century 21 Digital Model 574

Medium power solid state cw transceiver covering 80 - 10 meters. Double direct conversion receiver. Built-in AC power supply.

• eHam

• Keyer Model 670
• Calibrator Model 276
• Crystal for 28.5 - 29.0 MHz Model 273
• DC Circuit Breaker Model 1170

• Frequency Coverage: 3.5 to 4.0; 7.0 to 7.5; 14.0 to 14.5; 21.0 to 21.5; 28.0 to 28.5; 28.5 to 29.0 MHz. (Crystal not supplied for 28.5 to 29.0 MHz, but available as accessory, Model 273.)
• VFO Frequency Stability: less than 20 Hz change per degree Fahrenheit, averaged over a 40^o change from 70^o to 110^o, after 30 minute warmup. Less than 20 Hz change from 105 to 125 VAC line voltage.
• Direct Frequency Readout: 5 red LED digits, 0.3" high, accurate to nearest 1 kHz.
• Tuning Rate: Approximately 17 kHz per revolution of main tuning knob.
• Power Requirements: 105 - 125 VAC, 50-60 Hz. 10 watts receive, 100 watts transmit.
• Construction: Rigid aluminum chassis and sub-panels. Aluminum case. Grey front panel, black textured vinyl cover.
• Dimensions: HWD 6.125" x 12.5" x 12"
• Weight: 15.5 lbs

• Sensitivity: 1 uV or less for 10 dB S+N/N.
• Selectivity: Three position; 0.5, 1.0, and 2.5 kHz.
• VFO Frequency: 5.0 to 5.5 MHz. Double Direct Conversion.
• Antenna Input: 50 ohms, unbalanced.
• Audio Output: 1 watt @ 8 ohms, less than 2% harmonic distortion. Built-in speaker; PHONES jack.
• Offset Tuning: Approximately +/- 5 kHz, defeatable with ZERO BEAT switch.

• DC Input Power: 70 watts
• RF Output Power: 25-30 watts, typical.
• Output Impedance: 50 - 75 ohms, unbalanced.
• T/R Switching: Full break-in cw with PIN diode switch.