
Data sheet
Multistandard HF modem
◆
Single-tone modem technology
◆
Short preamble (Rohde & Schwarz
◆
waveforms)
Forward error correction (FEC)
◆
HF Modem ¸GM 2200
Fast and reliable data transmission up to 9600 bit/s
Remote control (ASCII code)
◆
CW suppression
◆
Compact plug-in module
◆
Built-in test (BIT)
◆
Software available for:
◆
–
–
–
–
–
Rohde & Schwarz advanced
waveforms
STANAG 4285
MIL-STD-188-110 A, Section 5.3
STANAG 4529
MIL-STD-188-110 B, App. C/
STANAG 4539, Annex B, Section 4

The multimode HF Modem
¸GM 2200 is currently the most
advanced serial HF data modem and
is fully integrated in the ¸XK 2000
radio equipment family. This modem
can form the backbone of a fast and
reliable data transmission system.
Thus large volumes of data such as fax,
color video still pictures and electronic
mail from PC to PC can be sent rapidly
anywhere in the world.
The modem makes it possible to transmit
data economically and reliably via shortwave at high speed (up to 9600 bit/s) in
contrast to traditional data transmission
techniques such as radioteletype (RTTY)
that allow 50 Bd or 100 Bd only.
The software is available for the
following waveforms:
Rohde & Schwarz advanced
◆
waveforms
STANAG 4285
◆
MIL-STD-188-110 A, Section 5.3
◆
STANAG 4529
◆
MIL-STD-188-110 B, App. C/
◆
STANAG 4539, Annex B, Section 4
These waveforms can be ordered in any
combination, i.e. separately and independently of each other, and enabled in
the ¸XK2000.
Of course, they are interoperable with
the corresponding waveforms of the
earlier ¸GM 2000 and ¸GM 2100
modems, thus enabling problem-free
communication with existing systems
and with modems of other makes.
In conjunction with a system processor/
communication server and appropriate software and interfaces from
Rohde & Schwarz, offi ce communication
terminals such as fax machines, color
video cameras/monitors or PCs may be
connected and the associated data (in
compressed form to save time) is transmitted via shortwave.
A system with the HF Modem
¸GM 2200 and a system processor
coupled with ARQ-supported RSX.25 data protection yields 100 % error-free data when taking all software error correction facilities and data compression
techniques into
account. The transfer time for an A4size text page is only about 3 s to 6 s and
that for a color picture including compression less than half a minute, using
the 5400 bit/s waveform.
The waveforms constitute the basis for
reliable and error-free HF data transmission. An ARQ data link protocol ensures error-free data fl ow. Owing to
our information technology and software solutions such as COM2000 or
¸PostMan II, the Rohde & Schwarz
2700 bit/s and 5400 bit/s waveforms
are used in connection with the ARQ
RSX.25 protocol. Used for the ALIS
or ALE link establishment method,
this protocol is specially adapted to
the Rohde & Schwarz 2700 bit/s and
5400 bit/s waveforms.
However, waveforms in line with
STANAG and MIL-STD such as the
new 9600 bit/s high-speed waveform
(STANAG 4539, Annex B, Section 4) cannot be used together with the RSX.25
protocol. For these waveforms, radio protocols such as STANAG 5066 are available on request.
2 HF Modem ¸GM 2200

Ordering information
HF Modem
Multimode HF modem, plug-in type for ¸XK 2000 series of equipment;
to be ordered together with Software ¸GM 2200 S through ¸GM 2204 S
Software for ¸GM 2200
Rohde & Schwarz 2700 bit/s + 5400 bit/s
useful data rate (with FEC1), autobaud capability but without interleaving) from 900 bit/s to 4500 bit/s;
5400 bit/s with FEC switched off
MIL-STD-188-110 A Section 5.3 Single Tone
useful data rate (with FEC, interleaving) from 75 bit/s to 2400 bit/s; 4800 bit/s
with FEC and interleaving switched off
STANAG 4285
useful data rate (with FEC, interleaving but without autobaud capability) from 75 bit/s to 2400 bit/s;
1200 bit/s, 2400 bit/s and 3600 bit/s even with FEC and interleaving switched off
STANAG 4529
useful data rate (with FEC, interleaving but without autobaud capability) from 75 bit/s to 1200 bit/s;
600 bit/s, 1200 bit/s and 1800 bit/s even with FEC and interleaving switched off;
occupies half the bandwidth of the STANAG 4285 waveform
MIL-STD-188-110 B Appendix C or STANAG 4539, Annex B, Section 4
useful data rate (with FEC, interleaving capability) from 3200 bit/s to 9600 bit/s;
12800 bit/s with FEC and interleaving switched off
¸GM 2200 6117.5500.02
¸GM 2200S 6117.6006.02
¸GM 2201S 6117.6258.02
¸GM 2202S 6117.6506.02
¸GM 2203S 6117.6758.02
¸GM 2204S 6117.7002.02
1)
FEC: f orward er ror correction.
HF Modem ¸GM 2200 3

More information at
www.rohde-schwarz.com
(search term: GM2200)
Certified Quality System
ISO
9001
DQS REG. NO 1954 QM
North Amer ica: Tel. 888 837 87 72, option 2 (from within the USA and Canada), +1 410-910-78 00, option 2 (from other countries) , e-mail: customer.support@rsa.rohde-schwarz.com
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14001
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Europe: Tel. +4 9 1805 12 4242, e-mail : customersupport@rohde-schwar z.com ·
Asia: Tel. +65 684 63710, e-mail: customersupport .asia@rohde-schwarz.com
www.rohde-schwarz.com
Certified Quality System
AS
9100
DQS REG. NO 1954 AS
Certified Quality System
AQAP-110
Audit report GP Q2-NO 96.07
¸is a registered trademar k of Rohde & Schwarz GmbH & Co. KG · Trade names are trade marks of the o wners · Printed in G ermany (Pe ch)
PD 5213.5597.32 · ¸GM 22 00 · Version 0 4.00 · June 2 005 · Data w ithout tolerance limits is not binding · Subjec t to change