Specially made for detecting jammer signal Anti - GPS jamming detector During 50 MHz - 6.0 GHz Vehicle GPS Jamming Signal Detector VS-JD101
Professional type Jamming Signal Detector Practical protection of fleet management / GPS tracking system

Thank you for purchasing the vodasafe Jamming Signal Detector. Please first read over this manual for proper use, save this manual and keep it handy.
GENERAL
This device applies with fuzzy scanning technology, specially made for detecting jammer signal during 50 MHz - 6.0 GHz without interference with cell phone, WiFi, WLAN, Bluetooth and DECT phone.
This device has 10 LEDs indicating the detected signal strength. When detects jammer signals, the LED will light from Green to Yellow to Red indicating the strength of detected signal.
This device includes a special environment noise verified circuit. This device is available for all the popular brand GPS trackers.
ENVIRONMENT NOISE VERIFICATION
There is an environment noise verified switch with H and L marking located in the battery compartment. Factory standard setting is L (Low).
SENSITIVITY ADJUSTMENT
Factory standard setting is at the position about 5 minute on clock.

Turn the Sensitivity Tuner to - (minus) side to decreases the sensitivity and the detecting distance will become shorter. Turn the Sensitivity Tuner to + (plus) side to increases the sensitivity and the detecting distance will become longer. very small chance to change sensitivity.
If the alarm will be triggered often, it might be the environment with high noise. Set the switch at H to reduce the false alarm. Very small chance to do this change.
Specifications * specification may change without prior notice
Dimension |
L 130 x W 68 x T 26 mm (L 5.1 x W 2.7 x T 1") |
Weight |
about 195 g |
Power |
Available during 12V - 24V DC, 150 mA |
Detecting Frequency |
Wideband jammer of Cellphone and WiFi frequency bands |
Warning mode |
10 LEDs |
Alarm output |
1.0A relay, with NO /NC output |
Sensitivity Tuner |
Eliminate the environment interference (background noise) |
Wire Connection of Relay output
There are 2 kinds of SOS trigger method among different brands GPS tracker:
1. First kind of GPS tracker: Hold SOS button over three (3) seconds, then GPS tracker will dial out automatically.
2. Another kind of GPS tracker has different trigger way of SOS button, user press SOS button over 3 seconds and should RELEASE SOS button, the GPS tracker will dial out then.