ePix Power Mapper 3

Power Mapper

With the ePix Power Mapper, you are no longer working in the dark. This meter is specially designed to show nulls in the UHF radio field at large distances from the antenna. You will find it hard to believe how large the signal variation can be, even quite close to the antenna. The meter will show polarisation effects and destructive null cancelations, ground and water absorption. The meter relies on the power in the radio waves, so it cannot give a fails reading or have a flat battery. Almost 100% of the signal on at the antenna is shown on the meter, giving a massive 10+ meters (30+ feet) range.

View a short video of the Power Mapper and Power Ranger in action.

Purchase the Power Mapper for $215 plus $20 for shipping and handling.

You can also purchase both the ePix Power Mapper and the ePix Power Ranger for $330, including shipping and handling. Add both to cart.

What can it do:

• Accurately maps RFID field pattern up to 15 meters range.
• Shows nulls and dead spots in RF signal.
• Detect which antenna is transmitting.
• Shows approximate RADIATED POWER.
• Tests polarisation of antennas. Linear, circular and cross polarised
• Ideal for beam angle measurements.
• Pulses to show notify time and other transmit interruptions.
• Oscilloscope output to show modulation.
• Detect cable faults and bad connections.

Features Benefits:
• No Battery , Uses RF power
• Pocket size
• Simple to use
• Wide frequency range
• Works with all known European and US UHF RFID Readers.
• Range can be adjusted using external resistor

• A new 12dB attenuator switch allows for close range measurement

• Frequency range 850MHz to 920 MHz
• Tested with Dipole, linear, circular patch and cross polarised antennas
• Tested for use to EN302 208 at 865MHz to 868MHz
• Tested for use to EN300 220 at 869.5 MHz
• Power level range 10mW to 4W EIRP
• Battery Life, Infinite. (runs on transmitter RF power)
• CE marked.
• The Power-Mapper contains no banned substances RoHs.
• The Power-Mapper doses not transmit any RF signals.
• Height 105.0mm, Width 70mm, Depth 45mm

"The ePix Power Mapper helps get the best possible results from any reader. All readers are affected by metals and fluids. Until now, it has been impossible to visualize the RF field and how the reflections become additive or subtractive in different environments. With the ePix Power Mapper, combined with a state-of-the-art enterprise reader such as the Alien ALR-9900+, we can now evaluate a site. Then using the Alien reader's simple setting and antenna angles, we can now avoid problems before the system goes live." -- Alien Technologies

Basic instructions:
Hold the Power-Mapper between your finger and thumb then move the meter slowly around the area you want to test. In general RFID tags take about 1uW to power up, so when mapping the RF field a reading on the power-Mapper of less than 1 indicates that a standard Gen 2 tag may not be readable. Rotate the power meter 90 Degrees to measure power in the horizontal polarisation plane. Use a resistor between the two terminals to calibrate your meter for close proximity measurements.

This meter is very sensitive and is capable of showing clearly the constructive and destructive interference patterns caused by ground bounce or metal objects within the RFID field. Test circular polarised antennas for dead spots using the meter horizontally at 3 to 5 meters range the normal dead zone can be measured. An Oscilloscope can be connected across the data out terminals to show the signal modulation.

In the United States, a meter reading of 100 at three feet of range with the 12dB attenuator switched on indicates approximately 4W EIRP.
In Europe, a meter reading of 100 at one meter range with the 12dB attenuator switched on indicates approximately 2W ERP.

Also available from ePix ltd is the Power-Ranger. A pocket size indicator for simple quick antenna set-up and testing; five meter range. Usually left at every installation for antenna and system verification. Safety Regulations state that you should not work within 25cm of a 2W ERP transmission.

The Power Ranger can be returned to ePix Ltd for disposal. RoHs compliant. EN60950 safety compliant.

Purchase the Power Mapper for $215 plus $20 for shipping and handling.

You can also purchase both the ePix Power Mapper and the ePix Power Ranger for $330, including shipping and handling. Add both to cart.





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7 Northbourne Road

Swindon , Wiltshire, SN25 4YE, UK

+44 1793 726212


ePix Power Mapper 3

ePix Power Ranger

ePix eP12-4 Omni Antenna

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