Here are the specifications of the Hammarlund HQ-215.

• Double conversion superhet. First IF is 3.055MHz. Second IF is 455kHz.

• 26 silicon transistors, 13 diodes and 2 Zener diodes in the full wave bridge, regulated power supply.

• Frequency Coverage: 3.4 - 30mHz in 24 200kHz segments. Segments are selected via a front panel bandswitch. The frequency coverage for each band is based on crystals installed in a crystal socket section.

• Antenna Input: 50-75 ohms - unbalanced

• Audio Response: 250 Hz to 6.5kHz +-3 db

• Audio Output: Greater than 1.5 watts with less than 10% distortion into 3.2 ohms.

• Modes: AM, CW, USB, LSB

• SSB/CW Sensitivity: Less than 0.5 uv for 10db signal plus noise to noise ratio.

• AM Sensitivity: Average 1.0uv for 10db signal plus noise to noise ratio.

• Selectivity: 2.1kHz mechanical filter with 2.1 shape factor.

• Optional Filters: 500Hz, 6 kHz

• Image Rejection: Better than -50db

• Stability: <100Hz per hour

• Frequency Readout: +-200 Hertz on all bands.

• A.G.C.: Selectable - slow/fast. Attack time less than 5ms. Slow release greater than 2s. Fast release less than 0.5s. Less than 10db output change with 2uv to 20,000uv input change.

• Noise Limiter: Self-adjusting series type.

• Power Requirements: 117/234 volts, 50-60 Hz, 19 watts. Also works with 12-15 VDC (negative ground only).

• Dimensions: 15.8" wide, 6.8" high, 14" deep.

• Weight: 18lbs

• Manufacture date: 1968-1969

Latest update: 03/30/03