Sensitivity: 0.25 uV for 10 dB S+N/N, all bands. 0.8 uV typical with RF amplifier off.
Selectivity: 16-pole crystal ladder filtering. 2.4 kHz bandwidth, 1.6 to 1 shape factor at 6/60 dB. Three position switch selects standard ssb filter, optional 1.8 kHz ssb filter, 500 Hz cw filter, or 250 Hz cw filter.
Notch Filter: Greater than 50 dB notch tunable between 200 Hz and 3.5 kHz.
Audio Bandpass Filter: 8 pole active band pass centered at 750 Hz. Variable fader control selects filtered for flat audio response.
CW Spot: Removes offset and shifts BFO 750 Hz.
I-F Frequencies: 9
MHz and 6.3
MHz.
Antenna Input: Low impedance, unbalanced.
RX Antenna Input: Switchable 50 ohm RCA phono jack provides separate input to receiver section only.
Audio Output: 1 watt @ 8 ohms with less than 2% distortion. Built-in speaker.
Spurious Responses: All below equivalent 10 dB S+N/N signal except 1.838
MHz (less than 15 dB S+N/N), 21.300
MHz (less than 20 dB S+N/N), and 28.980
MHz (which can be eliminated by using low end of 29.0 - 29.5
MHz band segment).
Noise Blanker: Switchable on/off with adjustable threshold and blanking width.
I-F Rejection: Greater than 60 dB.
S-Meter: Automatically switched on when receiving. Calibrated to 50uV at S9, +/- 3 dB.
Dynamic Range: 95 dB, typical.
Offset Tuning: Dual range, MAX +/- 4 kHz; MIN +/- 1.5 kHz, typical.
Receiver Recovery Delay: Less than 30 mS from key-up.
