The L3Harris RF-5710A-MD001 is a wideband HF/LF modem engineered for long-range military and government communications. It supports NATO-interoperable waveforms with full software upgradeability and built-in Ethernet connectivity. The unit delivers adaptive equalization to eliminate intersymbol interference from HF multipath propagation, convolutional FEC with Viterbi soft decision decoding across all data rates, and adaptive excision filtering to suppress up to four simultaneous co-channel interferers. Compliant with MIL-STD-188-110A/B and multiple STANAG waveform standards, the RF-5710A-MD001 provides auto-detection between QAM and serial tone modulations with 200 stored waveform presets.
## Technical Specifications
• **Data Rates:** 75 bps to 9,600 bps fully adaptive; STANAG 5065 MSK for higher-speed LF/MF; 19,200 bps adaptively-equalized HF waveforms supported
• **Waveform Support:** MIL-STD-188-110B (Appendix C), MIL-STD-188-110A, STANAG 4539, STANAG 4285, STANAG 4481, STANAG 4529, STANAG 4415, STANAG 5065, FSK
• **Modulation:** Programmable FSK center and shift frequencies in 1 Hz increments
• **Error Correction:** Convolutional FEC with Viterbi soft decision decoding
• **Interference Mitigation:** Adaptive excision filtering (four simultaneous signals maximum)
• **Presets:** 200 waveform configurations
## Electrical & Environmental
• **Power Input:** 85 to 260 VAC, 47 to 440 Hz; less than 15 W consumption
• **Audio I/O:** 600 Ω balanced input (–35 to +10 dBm); 600 Ω balanced output (–40 to +10 dBm adjustable)
• **Radio Control:** Open collector 45 V / 50 mA or non-polarized contact closure 45 V / 200 mA
• **Operating Temperature:** 0°C to +50°C
• **Storage Temperature:** –40°C to +80°C
• **Humidity:** 0 to 90% non-condensing
• **Shock:** MIL-STD-810E Method 516.4 Procedure 1 (40G, 11 mS)
• **Vibration:** MIL-STD-810E Method 514.4 Category 9 (shipboard)
## Data Interfaces
• EIA RS-422 balanced
• EIA RS-423/RS-232D unbalanced
