STANAG 4538 Preliminary OnAir Test Results

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STANAG 4538 Preliminary On-Air Test Results

• Comparison of STANAG 4538 FLSUXDL and US
  MIL-141A ALEFED-STD1052

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Testing Background

• Initial on air tests of STANAG 4538 FLSU
• 97km NVIS link Wolcott NY - Stockbridge NY
• PRELIMINARY
• Full results are in a paper, authored by Mike
  Wadsworth and Eric Peach, and will be presented
  at Nordic HF 01
• Testing performed with baseline 3 radio
  firmware. Expected hand off to DERA/TNO/FFI June,
  2001

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Testing Background

• Automated test script
• Test sequence performed every 30 minutes
• MIL-STD-141A call placed, time to link and
  frequency recorded
• As soon as linked data message sent with
  FED-STD-1052, followed by a return to scan
• Message Throughput calculated based on time to
  linktime to transfertime to return to scan
• 4538 FLSU performed, time to link and frequency
  recorded (circuit link),return to scan
• 4538 packet link with message transfer, message
  throughput calculated based on time to link, time
  to transfer, time to terminate link

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Testing Background

• MIL-STD-141A ALE performed LQA every hour, always
  called on the best ranked frequency
• 4538 FLSU called on next frequency in the scan
  list, no effort expended to call on best
• 10 frequencies between 3 and 8 MHz utilized
• Testing performed at 10 Watts

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