Operation Manual

Tuning :keypad input - 1 kHz resolution

Fine tuning :UP/DOWN keys approx. 10kHz steps

Memory storage :30 frequencies incl., all parameters,

and modes can be stored and

recalled for read out and print out.

IF filter : AM – 4 kHz, 7 kHz, 10 kHz

:FSK, USB – 2. 2 kHz

:CW – 2 .2 kHz

Audio filter :LF filter 5ooHz width with 1500 Hz

Centre frequency for CW and FSK

Antenna impedance :50: asym., BNC connector

Outputs : record output approx. 350 mV

External speaker

11.3. Receiver Features

Sensitivity measurements in PV PD across the antenna input at

50: impedance. AM and SSB sensitivity determined at signal to

noise ratio of 10 dB at receiver output:

AM signal : carrier modulated 70% and 1 kHz

SSB signal : carrier de-modulated,

resolved

at 1 kHz

60 kHz to 2 MHz : AM - 1.2PV, typical 0.8PV

: SSB – 0.6PV, typical 0.4PV

2 MHz to 30 MHz : AM – 0.9 PV, typical 0.6PV

: SSB – 0.5PV, typical 0.3PV

Selectivity:

SSB carrier de-modulation (2.2kHz CF) 20 dB

IF filte

band-width kHz shape facto

KHz -6 dB -60 dB -80 db SF6:60dB

2.2 2.3 3.4 5.5 1:1.5

4.0 5.9 9.8 10.7 1:1.7

7.0 8.8 12.9 14.6 1:1.5

10.0 10.5 21.5 1:2.0

CW filter position : (to carrier frequency)

-6 dB point at -0.8 kHz and +1.35 kHz

LF frequency 1500 Hz to carrier frequency

500 Hz filter : centre by 1500 Hz

Band-width : 500 Hz at –3 dB

:1000Hzat–10dB