| ETS-EMCO 7405 E & H Near Field Probes
The ETS-EMCO 7405 Probe Set is apassive,
near field probe set designed asa diagnostic aid
for locating andcharacterizing sources of E and
H-Fieldemissions. The set consists of three loopprobes, one stub and one ball probe, anextension
handle, an optional battery-poweredpreamplifier,
and a foam-linedcarrying case with a manual andapplication note.
The handle of each probe terminates in aBNC connector. Probes are designed tobe
used with a signal analyzing devicesuch as an
oscilloscope or spectrumanalyzer. The optional
preamplifier isuseful when signal amplification isnecessary for the analyzing device.
The loop probes are H-Field selective anddirectional. Sensitivity is relative to loopdiameter.
For example, the 6 cm loop canbe used to make a
general survey for HFieldemissions, while the
smallerdiameter loops can isolate specificsources.The ball and stub probes are E-Fieldselective
and omni-directional. The stubprobe is designed for
precise E-Fieldsource location, such as signal
traces orIC pins. The ball probe has a largesensing element and is capable oflocating
weaker signals.
Typical applications include locating andcharacterizing emissions from PCBs,ICs,
etch runs, cables, cover seams, etc.
Features:
-
Broadband Frequency Range
-
Linear Response
-
Locates both E and H- Field
-
Emissions Sources
-
Specialized Sizes / Shapes for
Sensitivity
-
Includes Free Carrying Case
-
New Optional Preamplifier for
-
Signal Amplification
Specifications:
| Electrical Characteristics of Probes |
| Model
7405 |
Probe
Type |
Primary
Sensor |
E/H
Or H/E
Rejection |
Upper
Resonant |
| 901B |
6.0 cm Loop |
H-Field |
41 dB |
790.0 MHz |
| 902B |
3.0 cm Loop |
H-Field |
29 dB |
1.5 GHz |
| 903B |
1.0 cm Loop |
H-Field |
11 dB |
2.3 GHz |
| 904B |
3.6 cm Ball |
E-Field |
30 dB |
> 1.0
GHz |
| 905B |
6.0 mm Stub
Tip |
E-Field |
30 dB |
> 3.0
GHz |
| Nominal
Gain of Optional Preamplifier |
| Frequency |
Gain |
| 100 kHz |
35.5 dB |
| 1 MHz |
38.1 dB |
| 100 MHz |
37.2 dB |
| 1 GHz |
32.5 dB |
| 2 GHz |
25.0 dB |
| 3 GHz |
13.0 dB |
| Electrical
Characteristics of Optional Preamplifier |
Model 7405 |
Bandwidth |
Noise Figure
(@ 100 MHz freq) |
Saturated Output Power
(@ 100 MHz freq) |
1db Gain Compression Intercept |
Connector |
| 907B |
100
kHz3 GHz |
3.5
dB (typical) |
+12.0
dBm (typical) |
+
10.0 dBm |
TYPE
BNC |
| 907BN |
100
kHz3 GHz |
3.5
dB (typical) |
+12.0
dBm (typical) |
+
10.0 dBm |
TYPE
N |
|
