Cubic Communications CDR-3250 - Page 14

CDR-3250/80 TECHNICAL MANUAL
Table 1-1 CDR-3250/80 Specifications-Cont.
Item Specification
1-4 Issue 2.2
4th IF (DSP) 51 selectable bandwidths (100 Hz to 16 kHz).
Bandwidths are effective bandpass filter bandwidths at the 3 dB down points.
Shape factor is 3 dB to 60 dB (Better than 2:1, 400 Hz and above). Inband ripple is
1 dB max.
Standard selectable bandwidths are as follows:
No. BW (Hz) No. BW (Hz)
0 100 26 2100
1 150 27 2200
2 200 28 2300
3 250 29 2400
4 300 30 2500
5 350 31 2600
6 400 32 2700
7 450 33 2800
1
8 500 34 2900
9 550 35 3000
10 600 36 3100
11 650 37 3200
12 700 38 3300
13 800 39 3400
14 900 40 3500
15 1000 41 4000
16 1100 42 5000
17 1200 43 6000
18 1300 44 7000
2
19 1400 45 8000
2
20 1500 46 9000
2
21 1600 47 10000
2
22 1700 48 12000
2
23 1800 49 14000
2
24 1900 50 16000
2
25 2000
1
ISB mode restricted to 2800 Hz BW only.
2
Bandwidths from 7 kHz to 16 kHz are available in AM or FM only.
INTERFERENCE IMMUNITY
IF Rejection 100 dB minimum
Image Rejection 100 dB minimum
Cross Modulation Unmodulated wanted signal of -60 dBm together with a modulated (30% AM at 1
kHz) unwanted signal of -10 dBm spaced 100 kHz apart will produce less than 10%
cross modulation of wanted signal.
Blocking Attenuation of a wanted RF signal of -60 dBm and caused by an unmodulated
signal of +10 dBm spaced 100 kHz away is less than 3 dB.
Oscillator Reradiation -110 dBm, up to 1 GHz from receiver antenna connector into 50 ohms.
Spurious Responses -120 dBm equivalent or less for -50 dBm input signals
Courtesy of http://BlackRadios.terryo.org