Dieting Blog

The 20/20 Step Time Domain Reflectometer (TDR) was designed to provide the clearest picture of coaxial or twisted pair cable lengths and to pin-point cable faults.   Step TDR’s, unlike, Pulse TDR’s have no dead-zone on any range and they can provide an impedance (Z) reading for the cable, both graphically and digitally.

Additionally, the 20/20 Step TDR, like the Tektronix^® 1502C, can be used on either coax or twisted pair cables and provide a clearer picture of cable faults or events including:

• Shorts
• Opens
• Wet cable
• Bridged taps
• Load coils
• Split pairs
• Cable kinks
• Crushed cable
• Cable faults
• Series resistive faults
• Shunt faults
• Splitters
• Poor connections
• Poor quality cable
• Lossy cable
• Other impedance deviations

Frequency Domain Reflectometers (FDR) test cable at specific frequencies or frequency bands.  Time Domain Reflectometers (TDR) test a cable against the manufacturer’s Characteristic Impedance, which basically tests the cable for any and all frequencies. The 20/20 TDR has 16 different models depending on application. They are used in broadcast, wireless, cellular, land mobile, telephone, Voice-Data-Video, RF, CATV, aerospace, military, or special applications such as Time-Based TDRs, or Project IceCube at the South Pole.  Any where there is a need to test cable for high bandwidth applications our 20/20 TDR’s can accurately locate cable faults, save troubleshooting time, and reduce service call costs.    

Ordering Information

All 20/20 TDR models include: AC-DC Wall power adapter, Padded Belt Case with strand hook and shoulder strap, PC serial cable, Operator Manual, Quick Start Guide, CD with TDR PC Vision Software, and copies of documentation.

Optional Accessories include: Kit Soft Carrying Case, Hard Carrying Case, Click on “ACCESSORIES” at the bottom of the page for detailed description and part numbers.

The VIA Bravo product line is a family of general purpose vector impedance analyzers used to measure impedance and resonant frequencies of circuits and antennas from 100 kHz to 200 MHz. VIA Bravo analyzers are available in both single port (S11) and dual port (S11/S21) versions. Applications include Commercial Radio, Aviation, and Radio Frequency Identification (RFID).

The VIA Bravo is a handheld Vector Impedance Analyzer for measuring the impedance & resonant frequencies of circuits and antennas. The Analyzer has the capability of providing accurate measurements and sweep displays of impedance, reactance, resistance, phase angle, return loss, SWR, and relative spectrum analysis. The VIA Bravo’s testing functionality, combined with its 100 kHz to 200 MHz frequency range, make it a versatile tool for many service applications. The VIA Bravo is being used in areas such as MRI, wireless telemetry, 2 way radio, aviation, and Radio Frequency Identification (RFID).

The VIA Bravo Analyzer is available in three versions with the capability of simultaneously displaying two separate measurement graphs and the respective scales.

The versions include the standard S11 Bravo, the eXtra Fine frequency resolution S11 Bravo XF, and the full S21 network analyzer Bravo II. A Smith Chart displaying the measured circuit impedances is also available using the Bravo PC Vision software in conjunction with a PC.

The Bravo PC Vision Software application, included with the VIA Bravo!, provides the user with the capability of remotely operating the VIA Bravo through a serial port connection while viewing Real-Time results on a P.C. The software makes the capture, storage, and printing of documentation and reports easy.

The VIA Bravo has proven to save time, improve on reliability and quality, and reduce service wait time.

The CellMate EX is an antenna analyzer that operates in the cellular frequency range of 600 – 999 MHz. This low cost analyzer provides graphical plots of SWR and Return Loss, numerical results, and plot storage.

AEA’s CellMate EX Analyzer is a graphical 600 – 999 MHz antenna analyzer that is primarily used to graph and examine antenna VSWR and Return Loss plots. The CellMate EX includes Signal Generator and Relative Field Strength modes, multi-layer menus, auto scaling and auditory cues for extremely flexible operability.

As a low priced, accurate, and graphical analyzer, The CellMate EX provides data plots in a fraction of the time and cost it takes to do it manually. At twenty ounces, the CellMate EX Analyzer is light weight and easily hand held. With the Analyst Director Software to interface with your PC, you have endless curve storage and printout capability.

AEA’s 140-525 Analyzer operates in the UHF/VHF band, and has a frequency range of 135 -525 MHz. The 140-525 provides graphical plots of VSWR and Return Loss, numerical results, and plot storage.

AEA Technology’s 140-525 Analyzer is a graphical antenna analyzer covering 135 to 525 MHz that speeds visualization of VSWR and Return Loss plots. The onscreen plot allows you to quickly determine the best match frequency and the 2:1 bandwidth points. 140-525 has 15 memories for plot storage and a relative Field Strength meter to determine if there is excessive RF in the testing area.

At 20 ounces, the 140-525 Analyzer is light weight and easily hand held. With the Analyst Director Software (Windows 95/98/2000/ME/XP compatible) to interface with your PC, you have endless curve storage and printout capability.

The 140-525 and its software is a powerful, yet cost effective, VHF/UHF testing tool set that should be in every Engineer/Technicians tool box.

The VIA Analyzer is an impedance analyzer for the HF band. The VIA has a frequency range of 100 kHz to 54 MHz. Features include graphical representations of SWR, Return Loss, Impedance, and Resistance.

The VIA Analyzer is a handheld, enhanced capability SWR Analyzer used for tuning antennas and antenna circuits. The Analyzer has the capability of providing accurate measurements and sweep displays of SWR, Return Loss, Impedance, and resistance. It also provides a reference to the Magnitude of X and Phase Angle. The VIA ‘s testing functionality, combined with its 100 kHz to 54 MHz frequency range, make it a versatile tool for many antenna service applications as well as the understanding of complex tuning issues.

The optional VIA Director Software application provides the user with the capability of remotely operating the VIA through a serial port connection while viewing high definition results on a P.C.

The software makes the printing and storage, of documentation and reports easy.

The VIA Analyzer is a handheld, enhanced capability SWR Analyzer used for tuning antennas and antenna circuits. The Analyzer has the capability of providing accurate measurements and sweep displays of SWR, Return Loss, Impedance, and resistance. It also provides a reference to the Magnitude of X and Phase Angle. The VIA ‘s testing functionality, combined with its 100 kHz to 54 MHz frequency range, make it a versatile tool for many antenna service applications as well as the understanding of complex tuning issues.

The optional VIA Director Software application provides the user with the capability of remotely operating the VIA through a serial port connection while viewing high definition results on a P.C.

The software makes the printing and storage, of documentation and reports easy.