There are quite a few pocket testers for electromagnetic energy, but this one
actually has the look {click for larger picture} and feel of a
professional test instrument.
Designed to detect electromagnetic emanations from a large number of
sources (microwave ovens, hidden transmitters, computer equipment, wireless
phones, amateur and commercial two-way radios, etc.), the ZAP 180 boasts a wide
frequency coverage of 10-4500 MHz (4.5 GHz).
For invisible applications, the unit can be kept in a pocket
and a vibrator-alert mode can be selected to notify the user of a nearby
transmitting device.
Weak signals are clearly detected at a respectable distance
using the linear scale, while snapping the mode switch to a logarithmic scale
prepare detection of much stronger signals. A large meter provides the
capability of comparing relative signal levels as well as signal locating.
The ZAP 180 operates for up to 80 hours from a pair of AA
alkaline cells (not included).
SPECIFICATIONS
|
Frequency Range: |
useful frequency range from less than 10MHz to over 4.5GHz. |
| Sensitivity Control: | More than 10 to 1 signal strength control (20dB). |
| LOG mode: | More
than 60 dB observable signal strength (1000:1). |
| LINEAR mode: | Better
than 100-microvolt sensitivity at the lower frequencies. |
| Battery Life: | Approximately 80 hours. (Alkaline AA cells). Approximately 45 hours using the silent-vibrator mode. |
| Weight: | Less
than 5.0oz. (150 gm) with batteries installed. |
| Dimensions: | 2.1
in. wide x 5.0 in. high x 1.25 in.thick (5.6 cm wide x 13 cm high x 3.1 cm thick) |
Who Needs a Zap Checker?
1. Persons interested in radiated signal levels at home or in the workplace.
2. People concerned with transmitted electronic surveillance from hidden cameras and "bugs"
3. Engineers and wireless installers to align antennas, detect "hot" or "cold" spots, pinpoint RF leakage
4. Ham radio operators for transmitter tune-up, plotting antenna radiation patterns, hidden transmitter hunts
5. Airline flight crews to detect radiating devices that could affect flight safety or communications.
6. Sales and technical personnel for product demonstrations.
7. Students and teachers for school science projects.
8. Utility linespersons for detecting radio frequency interference along wires and cables.
Uses for the Zap Checker
| This includes a wide variety of household devices: | Also detects and measures radiating signals from: |
|
* Cellular phones and wireless (portable) phones * Microwave ovens * Computers and wireless computer accessories * Transmitting security and baby-monitoring devices * Electronic car keys and garage door openers * FM radio and TV broadcasts |
* Hidden transmitting cameras, transmitting phone bugs, surveillance equipment and covert microphones * Ham radios, FRS walkie-talkies, citizens' band, VHF and UHF communicators * Police and emergency services transceivers * Transmission line leakage from wires or cables |
Features of the Zap Checker
1. Easy to use.
2. Convenient size - a small, lightweight, hand-held instrument that fits into a pocket or purse.
3. Highly sensitive: Detecting radiated signals from cellular phones and phone bugs at more than 20 feet, transmissions from "sealed" microwave ovens at 40+ feet, from FRS walkie-talkies at 60+ feet, and from ham radio transceivers at 80+ feet.
4. Wide Band: Spans a useable frequency range from 10MHz to 4.5GHz.
5. Dual Mode: LINEAR - for fully displaying weak signals at the highest sensitivity
LOG - for displaying input signals ranging over a 1000:1 input range
6. Sensitivity controller: to manually adjust the input signal level.
7. Silent Vibrate mode: Switchable vibrator function that allows detection of signals when direct viewing of the displays is unavailable or undesirable.
8. Analog Meter and Light Emitting Diode (LED) displays: The LED display is particularly suitable for viewing from a distance or in dimly lit surroundings - such as nighttime.
9. Economical: Operating for approximately 80 hours on 2 AA alkaline batteries.