Hf Modem; Basics Of Hf Modem - R&S M3SR 4100 Series Operating Manual

M3SR Series 4100

4.5 HF Modem

4.5.1 Basics of HF Modem

The Rohde & Schwarz HF modem option provides transparent shortwave, non-hopping data
communication capabilities, based on common STANAG (NATO Standardization Agree-
ment) and MIL-STD (US Military Standard) publications. They allow the user to perform data
transmission optimized for speed vs. robustness according to the present channel condition
and the wanted communication scenario. There are a couple of different legacy data mo-
dems which have been promulgated by NATO or the US Department of Defense to ensure
interoperability and performance issues.
The following communication waveforms are supported:
STANAG-4539
STANAG-4285
STANAG-4529
STANAG-4415
MIL-STD-188-110B, Section 5.3
and App. C
MIL-STD-188-110B, App. F
STANAG-4481
STANAG-5065 (RX only)
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Those waveforms are not selectable directly, but they are interoperable with
STANAG-4539. Therefore one should adjust STANAG-4539 when communication with one
of the mentioned waveforms is planned.
With ALE-2G and ALE-3G only waveforms STANAG-4539 and STANAG-4285 are sup-
ported.
With R&S EK4100 Systems only reception is supported.
Operating Manual 6175.4760.02 – 01
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R&S M3TR
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HF Modem
R&S M3SR Series 4100
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