<s>
The	O
TRML	B-Application
(	O
,	O
or	O
"	O
Telefunken	O
mobile	O
airspace	O
surveilance	O
radar	O
"	O
)	O
is	O
a	O
family	O
of	O
air	O
defense	O
radars	O
first	O
developed	O
by	O
Telefunken	O
and	O
currently	O
produced	O
by	O
Hensoldt	O
.	O
</s>
<s>
Retractable	O
mast	O
versions	O
are	O
TRML-2D	O
with	O
a	O
rotating	O
parabolic	O
antenna	O
and	O
TRML-3D	O
with	O
a	O
rotating	O
phased	O
array	O
antenna	O
,	O
designated	O
as	O
Nahbereichsradar	O
(	O
NBR	O
)	O
or	O
"	O
short	O
range	O
radar	O
"	O
by	O
the	O
Bundeswehr	O
.	O
</s>
<s>
The	O
latest	O
TRML-4D	O
comes	O
with	O
non-retractable	O
,	O
rotating	O
base	O
active	B-Architecture
electronically	I-Architecture
scanned	I-Architecture
array	I-Architecture
(	O
AESA	B-Architecture
)	O
solid-state	O
antenna	O
.	O
</s>
<s>
TRML-2D	O
was	O
designed	O
as	O
an	O
autonomous	O
mobile	O
command	O
system	O
for	O
air	O
defense	O
with	O
an	O
integrated	O
search	O
radar	O
.	O
</s>
<s>
The	O
range	O
of	O
the	O
radar	O
is	O
60km	O
for	O
TRML-2D	O
,	O
200km	O
for	O
the	O
TRML-3D/32	O
,	O
and	O
250km	O
for	O
TRML-4D	O
.	O
</s>
<s>
TRML	B-Application
can	O
feed	O
the	O
detected	O
tracks	O
into	O
air	O
defense	O
combat	O
management	O
systems	O
(	O
HFLaAFüSyS	O
9	O
,	O
HEROS	O
2	O
)	O
to	O
create	O
more	O
detailed	O
picture	O
of	O
the	O
airspace	O
.	O
</s>
<s>
TRML-2D	O
uses	O
rotating	O
parabolic	O
antenna	O
with	O
a	O
cosecant-square	O
pattern	O
,	O
where	O
the	O
lower	O
edge	O
slightly	O
deviating	O
from	O
the	O
parabolic	O
shape	O
(	O
a	O
so-called	O
"	O
lower	O
lip	O
"	O
)	O
.	O
</s>
<s>
TRML-3D	O
version	O
is	O
fitted	O
with	O
a	O
16	O
or	O
32-element	O
passive	B-Algorithm
electronically	I-Algorithm
scanned	I-Algorithm
array	I-Algorithm
.	O
</s>
<s>
The	O
marine	O
search	O
radar	O
TRS-3D	O
was	O
created	O
from	O
blocks	O
used	O
by	O
the	O
TRML-3D	O
.	O
</s>
<s>
The	O
radar	O
unit	O
includes	O
a	O
completely	O
redesigned	O
AESA	B-Architecture
antenna	O
with	O
solid-state	O
GaN	O
elements	O
,	O
mounted	O
on	O
a	O
non-retractable	O
continuously	O
rotating	O
base	O
.	O
</s>
<s>
TRML-4D	O
combines	O
digital	B-Algorithm
beamforming	I-Algorithm
with	O
pulse-Doppler	B-Algorithm
radar	I-Algorithm
to	O
detect	O
difficult-to-locate	O
airborne	O
targets	O
such	O
as	O
hovering	O
helicopters	O
or	O
low-flying	O
cruise	O
missiles	O
.	O
</s>
