Spectrum Analyzer Accessories

PR-261 - Near Field "Sniffer" Probe Set
ZTF-1 - 50-ohm to 75-ohm Matching Network

PR-261 - Near Field "Sniffer" Probe Set

The PR-261 is the ideal tool kit for the investigation of RF electromagnetic fields. It is indispensable for EMI pre-compliance testing during productive development, prior to third party testing. The set includes three hand-held probes with a built-in pre=amplifier covering the frequency range from 10 kHz to 100 MHz. The set includes one magnetic field probe, one electrical field probe and one high impedance probe. All have high sensitivity and are matched to the 50W inputs of spectrum analyzers. The power can be supplied either from the batteries or through a power cord directly connected to B+K Precision Model 2630. Signal feed is via a 1.5 meter BNC-cable. When used in conjunction with a spectrum analyzer, the probes can be used to locate and qualify EMI sources. They are especially suited to locate emission "hot spots" on PCBs and cables, as well as evaluate EMC problems at the breadboard and prototype level. They enable the user to evaluate radiated fields and perform shield effectively comparisons. Mechanical screening performance and immunity tests on cables and components are easily performed. Faulty components and poor bonding locations can be isolated. The magnetic probe incorporates a high degree of rejection of both stray and direct electrical fired, and provides far greater repeatability than with conventional field probes. Measurements can be made on the very near field area that is close to components or radiation sources. The electric field (monopole) probe has the highest sensitivity of all three probes. It can be used to check screening and perform pre-compliance testing on a comparative basis. The high impedance probe is used to measure directly on the components under test or at the conductive trace of a PC board. It has an input capacitance of only 2 pF and supplies virtually no electrical charge to the device under test.

Probe Set Specifications
All probes are electrically shielded and are supplied in a carrying case.
Frequency Range	100kHz to 1.2 GHz
Power Supply	6V from Spectrum Analyzers or Batteries
Operating Current	10-15 mA
Probe Dimensions	40 X 19 X 195 mm (approx.)

PR261

BK Precision PR 261 2615/20/25/30 SNIFFER PROBE

$1,035.00

2630 Main Product Page

TE-26 - 50-ohm Feedthru Termination

The output levels of the tracking generator of the Models 2620 and 2630 are correct only when terminated into 50 ohms. The Model TE-26 provides a 50 ohm termination and a BNC feedthru connection so that the tracking generator output may be fed into a high impedance circuit at a calibrated level.

TE26

BK Precision TE 26 2615/20/25/30 FEED THRU 50ohm

Discontinued

2630 Main Product Page

ZTF-1 - 50-ohm to 75-ohm Matching Network

Most RF networks (except cable TV) have an impedance of 50 ohms. The spectrum analyzers also have a 50 ohm input impedance, which allows direct connection. Cable TV networks have an impedance of 75 ohms. To use the spectrum analyzer with 75 ohm networks, Model ZTF-1 will match the 75 ohm network to the 50 ohm input impedance of the spectrum analyzer.

ZTF1

BK Precision ZTF1 75 to 50 OHM ADAPTER

$62.00

2630 Main Product Page