1. Untightened Antenna Equipment

In the event of the antenna equipment being inadequately secured, a temporary phenomenon may manifest wherein certain frequencies remain unblocked. During on-site installation, it is imperative to initially ascertain the tightness of the antenna equipment.

(1) Antenna Tightening Procedure: Given that the antenna comprises two functional components (1 being the short connector; 2 being the antenna pole), it is essential to firmly grasp and secure the lower section of the antenna's short connector during installation. Proceed to tighten and affix.   

(2) Incorrect Antenna Insertion: Each product features four antennas, namely 800MHz, 900MHz, 1800MHz, and 1900MHz, respectively. Ensuring precise alignment with the corresponding frequency socket on the server is paramount, as any misinsertion is impermissible. 

handheld wifi signal Jammers

2. Optimal Height-to-Width Ratio for Installation

The preferred installation height measures between 1.7 and 1.8 meters. This parameter denotes the distance from the ground to the cell phone jammer and yields enhanced shielding efficacy, particularly in educational environments.   

3. Poor Contact in Power Plug Connector

When interfacing the cell phone signal jammer with the power plug, meticulous attention must be paid to identifying and engaging the compatible receptacle, while refraining from exerting excessive force. Moreover, if encountering deficient power supply contact at the installation site, symptomatic indications may include the non-illumination of the mobile phone signal jammer. Addressing poor power plug contact on-site necessitates the implementation of a gasket onto the power supply connector.

4. Non-illumination of Switch Power Light

This circumstance may stem from one of three underlying causes:   

  1. Poor contact of the power plug.
  2. Malfunctioning diode indicator light, defective power supply unit. Diagnostic verification entails assessing the illumination status of the power supply's green light, which if absent, corroborates the power supply's inherent malfunction.

5. Ineffectiveness of signal jammer 

Possible causes contributing to the signal jammer's ineffectiveness encompass:

  1. Incorrect antenna matching.
  2. Untightened antenna socket.
  3. Misrepresentation of signal on the mobile phone screen, particularly prevalent in Samsung and Tianyu devices, where the actual signal blockade is occurring, notwithstanding the signal display.
  4. Potential internal malfunction within the signal jammer unit.