RF Test Equipment

· Peak/Avg power readings: 300 and 3000 W range

· Peak and Peak/Hold (2 sec) function

· Frequency range: 1.8 MHz to 60 MHz

· True shielded directional coupler

· Displays FWD power, REF power, and VSWR

· Dual movement meter system

· PL259 Coax connector

· Top cover is powder coat finished

· 115VAC to 12VDC adapter is included

· Dimensions: 4.75" wide x 4.25" high x 4" deep

· Weight 1.5 lbs.

      

Palstar PM2000A In Line Wattmeter

 Front View

TTS Systems

Ten Tec/TAPR Vector Network Analyser

 Front View

This new  VNA gives experimenters, designers and educators their first affordable access to many capabilities of conventional bench-top Network Analyzers. Even a used conventional Analyzer sells typically for $ 5000 and up. The VNA covers 200 kHz to 120 MHz. Use it to test low power amplifiers, characteristics of coax cables, measure and adjust filters, check antenna impedance vs. frequency, antenna SWR, even measure the length of transmission lines using TDR feature (Time Domain Reflectometer). The VNA measures forward/reverse gain and phase response of a circuit. Also measures input and output reflection (complex impedance) and provides S parameters. Make measurements of one-port networks (input, ground) and two-port networks (input w/ground, output w/ground). VNA also functions as general purpose signal generator. Frequency accuracy in either analyzer mode or signal generator mode can be enhanced with use of customer provided external frequency reference.

Here are some of the tools needed to work with Transmitters, Receivers and Antenna. While the items are primarily orientated towards the ‘Ham Radio’ market they can be  valuable tools in the professional radio workshop.

Radio designers need to perform intermodulation-distortion (IMD) testing on their gear. During such tests, a two-tone signal is typically presented to the device under test and a measurement taken of the device's IMD. IMD tests are performed on both receivers and transmitters. As performance requirements increase, it becomes more difficult to generate two-tone signals having the required spectral purity.
To generate a test signal during two-tone IMD testing, it is generally desirable to combine the outputs of two standard signal generators. However, insufficient isolation between the combiner ports produces IMD products in the output stages of the generators themselves that mask the performance of the device under test.
Port isolation of around 30 dB is the best possible value for a simple hybrid combiner. That has made it difficult to make IMD measurements on newer equipment that must be tested to high input-signal levels. Usually, special (read expensive) test fixtures are needed to achieve clean, high-level test signals.
Ten-Tec's two-port IsoLine combiner/splitter achieves a typical port-to-port isolation of >50 dB over any 30-MHz of bandwidth within most of its range of 2-300 MHz.  The IsoLine typically achieves greater than 60 dB of isolation over narrower frequency ranges.  That is the best in the industry and is fully three orders of magnitude better than anything else we are aware of.  A built-in adjustment control allows users to optimize isolation for their particular frequencies of interest.

Ten Tec Isoline Model 651 High Isolation Combiner Splitter