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pre-selection below 7.0 MHz. Triple pre-selection 7.0 - 26 MHz. Calibration
every 100 kHz point. Tuning: Below 3.7 MHz the big spinner knob after calibration.
Above 3.7 MHz: Calibration every 100 kHz with big spinner knob and fine
tuning within 1 kHz with fine spinner knob on 0 - 100 kHz scale right under
on the main scale. Or for the coaststation transmitting bands frequencies
choice between 19 x-tals. They cover each 100 kHz. Pre-selection must nevertheless
be peaked on maximum signal strength. Also the antenna trim condensator.
Bandwith: Sharp: 0.5 kHz with switching on 2 crystals in the first 560
kHz LC-filter. Narrow: 2 kHz, Medium: 4 kHz , Wide: 8 kHz. For CW and SSB
productdetectors are switched on. Modes: CW-AM-SSB. For USB a separate
x-talfilter is installed. (togheter with Narrow the best results). LSB
via CW, the BFO 30 degrees turned to the right and Narrow filter gives
good results with AVC switched on long because the applied productdetector.
Image rejection >70 dB up to 26 MHz. IF rejection >90 dB. Sensitivity :
0.2 uV gives an understandable CW signal. Tubes: EF 85, EBF 80, ECH 81,
EAA 91(noise limiter), EL 95, ECF 80 (calibration oscillator), OB 2.=
73, Frans Koop, PA1SR
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