Swann CUBIC ASTRO 102 BX Service Manual page 7

OCUBIC
COMMUNICATIONS
SIIW..
III
DIVISION
Key:
RCA jack
EXT. Modulation: RCA jack
Receiver Selectivity: SSB and CW--2.4 kHz OOndwidth, two 8-pole crystal
filters with shape factor 1.4; 6 dB to 100 dB
Fuse:
Ext. L.O.:
Circuit Design:
Receiver Sensi-
tivity:
Image Rejection:
Passl:and Tuning:
Dynamie Range:
Audio Output Power:
Meter:
Circuit Design:
Power Input:
Power Output:
Unwanted Sideband
Rejection:
Harmonie Output:
3 amp fast blow
RCA jack
R
. 1
ecelver
Single conversion to 9.00165 MHz IF using double 001-
anced mixer. Exceptional immunity to overload and cross
modulation.
10 dB S+N/N typical at 0.35 uV
Better than 60 dB
CWN--300 Hz l:andwidth. IF crystal filter in series
with one 8 pole SSB filter
SSB and CW eight pole cutoff continuously variabIe
high pass or low pass. LED readout shows equivalent
audio passband.
CWN--IF crystal filter continuously tunable over 300 to
3000 Hz with passband control
AGC greater than 100 dB; third order intercept +15 d.Bm
Greater than 3 watts into 4 ohms.
S-units from 1 to 9; 20, 40 and 60 dB over S-9
Transmitter
Excellent hannonic and TV1 suppression. ALC limits SSB
peak power and CW power to 100 watts output.
235 watts PEP input at 13.6 V
00
input
100 watts PEP into 50 ohm non-reactive load at 13.6 V
00
>60 dB down at 1000 Hz audio note
? 45 dB below peak power level
Carrier SUPJlression: >50 dB below peak power level
2-2