GTEM 1250 – 1300

GTEMCELL GTEM-1250 Family

The GTEMCELL GTEM-1250 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”.

Compared to other measuring methods like EMC test in anechoic chambers or OATS (Open Area Test Sites), GTEM-cells offer some significant advantages for the testing of small and medium sized EUT´s (Equipment Under Test) up to a frequency range of 20 GHz. Quick turnarounds of the EUT as well as numerous testing variations are easy and fast to handle. Switching from emission to immunity testing requires only simple adjustments from receiver input to amplifier output.

You are irrespective of long waiting times associated with off-site test labs or weather and ambient delays that can occur at OATS facilities. Whether you are at the design qualification, pre-compliance, compliance, or production sampling stage, the GTEM is the right choice for you!

GTEM 1250 –  Main Technical Specifications / Max EUT Size

Frequency range

0,01 MHz – 20GHz*

Septum Height [mm]:

1250

Max EUT Size (LxWxH)cm

950 x 950 x 700mm

Defined test Vol. +3dB

700 x 750 x 450 mm

Typical VSWR

1:1,2

Typical VSWR at critical frequency

<1:1,6

Max Input power, W continuous/*pulsed

500/*1Kw

Input connector

N

Nominal impedance

50

Window in the door

Diam.200 mm.

Empty Technical panel

N.3 Diam.200 mm.

Mechanical Dimensions

Outer LxWxH [cm]:

610×325,6×215,6cm.+25 cm trolley

Door WxH [cm]:

80×110

Weight Kg. Approx.

1200

Wheeled undercarriage

25cm high

Electrical Specifications

Mains connectors

Fix/CEE

Main Switch

16A magneto-thermal

Input Socket plug

16Aac (Single phase + ground)

Output Socket EUT tape

16Aac (Single phase + ground)

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 connectors

N.1 N-N, N.2 SMA-SMA

Indoor LED Light

N.2x20W

Secondary  EMC Filter

N.1  10A AC/DC f

Electrical Equipment / Options

AC filter 30A/2 wire (2PH+Ground)

AC filter 16A/4 wires (3PH+N+Ground)

DC filter feed-through 300A  450V

Electrical safety interlock

9-poles signal filter (DB9)

25-poles signal filter (DB25)

Channel for fiber optic leads (6 couples)

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

GTEM-1250_Datasheet

GTEM-1300_Datasheet

GTEM Power vs. Field

Manipulator brochure

• 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