User Manual Part 2

Link CX-24 User’s Manual
Version 1.0 Page 49 February 2004
Appendix B - Technical Specifications
Table B.1 – Link CX-24 DS-3 or Ethernet Version (24 GHz)
General
Frequency Range 24.05-24.250 GHz
Compliance (USA) FCC Rules Part 15.249
Capacity
Full-duplex DS-3, per Bellcore GR-499-CORE, or
45 Mbps Ethernet, per IEEE 802.3
Emission Bandwidth 26 dB at 13.9 MHz
Channel Center Frequencies
• Channel 1 (Tx Low/Rx High) Transmit -- 24.072GHz/Receive -- 24.212GHz
• Channel 1 (Tx High/Rx Low) Transmit -- 24.212GHz/Receive -- 24.072GHz
• Channel 2 (Tx Low/Rx High) Transmit -- 24.088GHz/Receive -- 24.228GHz
• Channel 2 (Tx High/Rx Low) Transmit -- 24.228GHz/Receive -- 24.088GHz
Modulation Type 16 QAM
Transmitter
Maximum RMS Power Output 0 dBm
Power Output Stability +/- 2 dB
Frequency Stability +/- 0.24MHz
Transmit Duty Cycle 100%
Emissions Mask & Spurious and Harmonic Output Per FCC CFR 47 Part 15.249
Channel Frequency Selection Software-controlled
Automatic Tx Power Control (ATPC)
Maintains a constant Carrier-to-Noise Ratio at both
ends of a link, operator enabled ON or OFF
Transmitter Attenuation Range
0-30 dB in 1 dB steps, and Mute 40 dB, operator
controlled
Receiver
Type Double Heterodyne
Error Correction FEC Reed Solomon Decoding
Sensitivity at 10-6 BER -78 dBm state guaranteed
Typical Unfaded BER 10
-10
Frequency Stability +/- 0.24MHz
Channel Frequency Selection Software-controlled
Maximum Receive Level without Receiver
Degradation
-35 dBm
Maximum Receive Level without Receiver
Damage
-30 dBm