CDR-3250/80 TECHNICAL MANUAL
Table 1-1 CDR-3250/80 Specifications-Cont.
Item Specification
Issue 2.2 Change 2 1-5
Generated Spurious Above 0.14 MHz, two at no more than -110 dBm. All others less than -120 dBm
Intermodulation Distortion:
2nd-order Input intercept point of +40 dBm (+55 dBm above 1.6 MHz with 2600-1107-2 RF
Analog module )
3rd-order Input intercept point of +30 dBm
OUTPUTS
WBIF Wideband IF, 456 kHz, 20 kHz min. BW
NBIF (analog) Narrowband IF reconstructed from I & Q equal to selected bandwidth,
455 kHz, -10 dBm ± 3 dB over dynamic range
Third IF (digital) I & Q outputs from DSP
Video Demodulated FM, 500mV peak to peak into 75 ohms (deviation equal to 30% of
selected bandwidth)
FSK Provides RS232 compatible output
C.O.R. NORM and ALT Carrier Operated Relay signals
Audio Line Output
(Normal)
600 ohms balanced pair on audio connector short circuit protected, less than 3%
distortion at rated output, (FM mode only with de-emphasis on).
AM, CW, LSB, USB, ISB: 0 dBm ±3 dB (Normal audio is the USB when ISB mode
is selected).
FM: 0.5 V/kHz AC coupled (4V p-p max.)
Audio Line Output
(Alternate)
600 ohms balanced pair on audio connector short circuit protected, less than 3%
distortion at rated output, (FM mode only with de-emphasis on). 0 dBm ±3 dB.
(Alternate audio is the LSB when ISB mode is selected)
PHONES 0 to 2V p-p, 8 ohm load impedance to front panel phone jack. Short circuit
protected. Speaker output in parallel to rear panel audio connector.
Reference 10 MHz , 0 dBm, 50 ohms nominal.
INPUTS
Synthesizer Reference 10 MHz external standard, 0 dBm, 50 ohms
Antenna 50 ohms nominal
GENERAL DATA
Power Requirements 90 - 260 VAC 47 - 440 Hz, 60 watts, switching mode power supply
Dimensions CDR-3250 - 19" (48.2 cm) wide, 3.5" (8.9 cm) high, 22.03 (55.95 cm) deep
CDR-3280 - 8.45" (2.17 cm) wide, 3.5" (8.9 cm) high, 22.25" (57.05 cm) deep
Weight CDR-3250 - Approx 21.8 lbs. (9.9 kg) (Unpackaged)
CDR-3280 - Approx 16.0 lbs. (7.25 kg) (Unpackaged)
Courtesy of http://BlackRadios.terryo.org
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