User's Manual

PRELIMINARY FCC ID: BIB61201001 DESCRIPTION 2-10
PRELIMINARY MCC-6120 SDR Packet Data Radio Network
MCC-6120 SDR LOWBAND RECEIVER SPECIFICATIONS
CHARACTERISTIC SPECIFICATION
Frequency 39-50 MHz .0005%
DDS 1 Hz steps
Modulation: Rate
Type
Format
4.8kbps, 9.6 kbps, and 19.2 kbps
BPSK (4.8 kbps); GMSK (9.6kbps & 19.2kbps)
NRZ
Noise Figure < 8 dB minimum
Sensitivity: Bit Error Rate < 10
-3
at 9.6
kbps
-113 dBm at 9.6 kbps -110 at 19.2 kbps
IF Bandwidth (3/80 db) 13/40 kHz typical
RF Bandwidth (3 db) 13 MHz typical
Signal Acquisition Time < 5 msec
3
rd
Order Intercept Point >- 4 dBm
Image Response Attenuation > 70 dB minimum
Spurious Response Attenuation > 70 dB minimum
I/O MCC Standard (Refer to Section 3.2)
TABLE 2.2
MCC-6120 SDR LOWBAND TRANSMITTER SPECIFICATIONS
CHARACTERISTIC SPECIFICATION
Frequency 39-50 MHz .0005% Synthesized 10kHz
steps
RF Power Output > 100 Watts at 12 V
DC
Input
Load VSWR < 2:1 Rated Power
Harmonic Levels 70 dB below Unmodulated Carrier
Modulation: Rate
Type
Format
4.8kbps, 9.6 kbps, and 19.2 kbps
BPSK (4.8 kbps); GMSK (9.6kbps & 19.2kbps)
NRZ
Spurious > 70 dB below Unmodulated Carrier
Transmit Modulation Spectrum 10 kHz offset – 40 db
25 kHz offset – 70 db
Tx Duty Cycle 16% Max without shutting down transmitter
20% will shut down the transmitter
T/R Switch Solid-State
Switching Time < 100 microseconds
I/O MCC Standard (Refer to Section 3.2)
High VSWR Protection Withstands Infinite VSWR
TABLE 2.3