Argonaut Model 515

5-bands: 3.5, 7, 14, 21, & 28 MHz, 10 meters split into 500 kHz segments - 29.0 & 29.5 segments require optional crystals

0.35 uV sensitivity for 10 dB S+N/N

4-pole crystal lattice filter with 2.4 kHz bandwidth, 1.7 shapte factor at 6/50 dB points

Offset tuning with LED indicator

Resonate control

Direct frequency readout

Full CW break-in

Adjustable sidetone level and pitch

Built-in "S" and SWR meter

Built-in speaker

No-tune final amplifier

5 watts input

LED RF indicator

TVI filter

Automatic 750 Hz Cw offset

Automatic sideband selection, reversible

Tilt-up bail