Multifunction instrument can analyse antenna parameters from 1,8-170 MHz

17 May 2006 Test & Measurement

The MFJ-259B is a complete radio test station, fully portable, which is intended primarily for use by radio hams.

Available from Radio Accessories & Data Modems, the test facilities include: frequency counter, RF signal generator, SWR (standing wave ratio) analyser, RF resistance and reactance analyser, coax analyser, capacitance/inductance meter, amongst others.

Radio Accessories & Data Modems has a complete range of radio communications products and test equipment available for many types of users.

Giving a complete picture of an antenna's performance the MFJ-259B instrument can show antenna Complex Impedances for frequencies from 1,8 to 170 MHz. The Complex Impedance can be read as a series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees). Additonally, the velocity factor, coax cable loss in dB, length of coax and the distance to a 'short' or 'open' can be measured in feet. One can also read inductance in μH and capacitance in pF, at RF frequencies.

A large easy-to-read two-line LCD screen and side-by-side meters clearly display the relevant information. With a built-in Ni-Cad charger circuit, it is fully portable for use at remote sites, up towers, and on DX-peditions. Enclosed in a rugged all-metal cabinet it measures 102 x 51 x 172 mm.

For more information contact Radio Accessories & Data Modems, +27 (0)11 802 2976, [email protected]

Further reading:

New technique for measuring DNA damage could improve cancer therapy
Test & Measurement
Scientists at the National Institute of Standards and Technology have developed a new technology for measuring how radiation damages DNA molecules.

Read more...

---

Precise DC power analysis
Conical Technologies Test & Measurement
The ITECH IT2705 DC power analyser is designed to help engineers and researchers capture it all, from the tiniest deep sleep currents to the highest peak operating loads.

Read more...

---

What is a JTAG connector?
Spectrum Concepts Test & Measurement
JTAG was originally created to test for common problems, but lately, it has become a way of configuring devices.

Read more...

---

SIGLENT launches new 8 GHz DSO
Vepac Electronics Test & Measurement
SIGLENT has unveiled the enhanced SDS7000A/AP models, building on the success of its SDS7000A high-resolution digital oscilloscope series.

Read more...

---

Multi-functional high-res oscilloscopes
Coral-i Solutions Test & Measurement
RIGOL Technologies has launched two powerful additions to its oscilloscope portfolio that are tailored to meet the growing challenges of power electronics, automotive systems, and high-speed digital designs.

Read more...

---

TDK expands programmable PSU series
Accutronics Test & Measurement
With a 3U high chassis, the GAC and GAC-PRO provide extremely high-power density for a fully featured programmable AC power source.

Read more...

---

Analysing magnetic fields
Accutronics Test & Measurement
The engineers at Narda Safety Test Solutions have achieved a breakthrough in isotropic measurement and analysis of low-frequency magnetic fields in the form of their latest digital H-field probe.

Read more...

---

A new class of sampling scope
Comtest Test & Measurement
The PicoScope 9400A Series combines the huge analogue bandwidth of sampling oscilloscopes with the triggering architecture of real-time oscilloscopes.

Read more...

---

Single channel, programmable PSU
Electrocomp Express Test & Measurement
Rohde & Schwarz’ NGC101 is a NGC100-series power supply with a wide range of functions that make them ideal for use in development labs and industrial environments.

Read more...

---

Next-gen LineScan camera
Eagle Africa Technology Test & Measurement
New Imaging Technologies has launched the new LiSaSWIR, its next-generation SWIR LineScan camera and sensor.

Read more...

---