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  • https://www.spy-equipment.co.uk/media/product/4c5/telephone-line-protection-68c.jpg
    Telephone Line Protection

Telephone Line Protection

Availability: In stock


Quick Overview

The module provides:-

When handset is picked up – protection of analogue telephone line:
from telephone transmitters of any type and power, including ones of non-contact type (inductive and capacitive) and the devices of audio recording; blockage of parallel telephones; microphones, which use the line as a transmission channel.

When handset is hung up protection from information leakage through telephone lines by microphonicity and enforced high frequency remodulation.

Detection of overhearing devices – any devices with galvanic connection to the line.


Availability: In stock



Multipurpose module  K9SP17/D protects analogue telephone lines from listening and leakage of information.

Distinctive features: 

Full automation of module operation by microprocessor with capability of manual adjustment of interference level;
"Guarding mode" – with user notification of connection (disconnection) by sound and light signals, when installing the module between PBX and EXCH the signal is given into the handset;
Possibility of remote control over DTMFcode at the installation of the device.

Main technical characteristics:
HF noise level (on 600 Ohm line).....not less than 15 dBm 
HF noise................6 - 10 kHz 
Noise level on telephone set........not more than 40 dBm 
Adjustment of HF noise level.........0 9 dB 
LF Noise level on line 600 Ohm....not less than 20 dBm
Frequency band of LF noise....0.3 - 3 kHz 
Overall dimensions........................152x104x34 mm
Weight........................not more than 0.6 kg 

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© 2015 K9 Electronics. All Rights Reserved.
Powered By  Pringapus Networks
Telephone Line Protection
buy for less at K9 Electronics UK's no1 manufacturer. Buy Telephone Line Protection with confidence with life time warranty and support. fully customised spy and surveillance products. Telephone Line Protection can be custom made for your specific requirements.