GTEM 750 – 800 – 800F

The GTEMCELL GTEM-750/800 is a TEM waveguide with the upper-frequency limit extended to the GHz range. It is under consideration as an alternative measurement facility for both radiated emission and immunity measurements. It is included in the standard IEC 61000-4-20 “Emission and Immunity Testing in Transverse Electromagnetic (TEM) Waveguides”.

PARTNER:

WWW.GTEMCELL.COM

MARKETS:

TEST STANDARDS:

IEC/EN 61000-4-20 ,
IEC/EN 61000-4-3 ,

GTEM 750

GTEM 800

GTEM 800F

GTEM Power vs. Field

Manipulator brochure

SPECIFICATIONS

GTEMCELL GTEM 750 Family
The GTEM cell is, in principle, a tapered coaxial line (offset septum plate), which is terminated by a hybrid combination of discrete resistors and RF absorber to achieve a 50 Ohm broadband match. It is applied for the measure of Radiated emissions and radio frequency field-immunity test. The GTEMCELL GTEM 750 family consist of the: GTEM-750 made with 65cm pyramidal carbon-foam absorbers (RAM). GTEM-800 made with 51cm EMC Truncated pyramidal absorbers (RAM). GTEM-800F made with Ferrite tiles on the bottom and 45cm Hybrid pyramidal carbon-foam absorbers (RAM).

GTEM 800 – Main Technical Specifications / Max EUT Size
Frequency range	0,01 MHz – 20GHz*
Septum Height [mm]:	800
Max EUT Size (LxWxH)cm	62x62x50
Defined test Vol. within 6dB	26,5×26,5×26,5
Typical VSWR	1:1,2
Typical VSWR at critical frequency	<1:1,5
*Max Input power, W continuous/pulsed**	1KW/*2,5Kw
Input connector	7/16 or N female
Nominal impedance	50
Window in the door	Diam.250 mm.


Mechanical Dimensions
Outer LxWxH [cm]:	400x220x150
Door WxH [cm]:	60×60 (clear passage)
Weight Kg. Approx.	500
Wheeeled undercarriage	70cm high


Electrical Specifications
Mains connectors	Fix/CEE
Main Switch	16A magneto-thermal
Input Socket plug	16Aac (Single phase + ground) IEC
Output Socket EUT tape	16Aac (Single phase + ground) Schuko
Additional EUT sockets	Optional
Ground connection	M6 bolt
AC filter wires (Single PH+Ground)	16Amp. 2 wires
Channel for fiber optic leads	3 couples
RF feed-thru connector	N.1 N-type double female
RF feed-thru SMA type connectors	N.2 SMA type double female
Secondary EMI filter AC/DC	N.1 10A 250V.

Electrical Equipment / Options
AC filter 30A/2 wire (2PH+Ground)
AC filter 16A/4 wires (3PH+N+Ground)
Electrical safety interlock
Indoor lighting 20W LED
9-poles signal filter (DB9)
25-poles signal filter (DB25)
Channel for fiber optic leads (3 couple)
Additional RF feed-thru N-type connector
Additional RF feed-thru SMA type connector
RJ11 (RJ9) feed-thru connector
Technical panel pre-drilled for options
Video camera system


Mechanical Equipment / Options
Gas / Water feedthrough plates
Honeycomb panel
Fans N.1 12x12cm
Empty Technical panel GTEM-750 Datasheet GTEM-800 Datasheet GTEM-800F Datasheet	GTEM´s Main differences from competitors: Trolley with wheels and brakes, one person alone can move the cell! Unique inox steel construction for heavy tropical ambient (optional) Door with 3 rows of gaskets (optionally up to 5 rows), no maintenance is necessary. (no CuBe finger strips! that after some months breaks...) Use of hi-power ceramic BeO resistors up to 4-6GHz 100-200W ea. and 2,5KW peak power resistance. Over dimensioned Heatsink, No fans required also with Hi-power! High transparency glass with high shielding performance Spherical surface absorber to avoid phase delay of reflected signals Unique flange transition from rectangular to coax line with a quick change of input connector: N, SMA, or 7/16 DIN Strong and at the same time light structure reinforced with U bars. The safe connection between the metal sheets with multi-grip special rivets and Ni-Cu-Ag gaskets Three (3) year warranty from the date of manufacturing