Operating Manual 6175.4760.02 – 01 4.123
M3SR Series 4100 HF Modem
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:
*)
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.
R&S M3TR R&S M3SR Series 4100
STANAG-4539 xx
STANAG-4285 xx
STANAG-4529 xx
STANAG-4415
*)
xx
MIL-STD-188-110B, Section 5.3
and App. C
*)
xx
MIL-STD-188-110B, App. F x
STANAG-4481 x
STANAG-5065 (RX only) x
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