ECM641 GPS Anti-Tracking Unit

The ECM641 GPS Anti-Tracking Unit counters the growing use of tracking devices using GPS systems to gain a positional fix. The discreet GPS anti-tracking unit can be carried covertly by those wishing to ensure that the position of a meeting cannot be tracked by interested third parties.

ECM641 Description

Similarly, the unit can be placed in a vehicle or carried by passengers to counter the ability to track the vehicle by a device using GPS location technology.

Manufacturer's Desciption (PDA Electronics Ltd)

If the user wants to ensure that the ECM641 signal is reaching all the relevant parts of the vehicle a GPS detection device, the ECM189, is also available. This identifies the presence and source of a GPS jamming signal.

The ECM641 GPS Anti-Tracking Unit

Transmits countermeasure at 1575.42MHz (L1)
Disables standard GPS location units
Spectrally matched to L1 C/A satellite signals.
Two Power settings
Self calibrating oscillator
Long battery life
Small size for covert operation

The 641 has been specifically designed to facilitate a variety of options should they be required.

The unit can be enhanced to attack the high speed L1 signal which transmitted along with the slower C/A signal and carries the higher precision PY code information.
Another variation relates to the distruction of the operational code. This could be implemented if the unit was to be deployed in sensitive geographical areas and disables the unit if used by an unauthorised user.

ECM641 Specifications

Manufacturer's Desciption (PDA Electronics Ltd)

Transmit Information

Frequency: 1575.42MHz (± 2.5ppm)
Spectrum: Sidebands at fc± 333kHz (-6dBrc) (>50dBrc beyond fc±1.3MHz)

The signal is centred on the L1 frequency and with a waveform specifically designed to confuse / corrupt a wide range of GPS receivers.

LED indications

The LED indicator will flash GREEN to indicate that the unit is active and RED when the internal batteries are low and need replacing.

Switch

The 3 position switch allows the user to switch the unit ON and OFF and also to select the desired transmit power level.

Position 1- Unit OFF
Position 2 - Unit On Low Power 160μW (-8dBm), LOS Range 50 metres
Postion 3 - Unit On High Power 2.5mW (+4dBm), LOS Range >200 metres

Battery life

Low power : better than 20 hours
High power: approx. 10 hours
The Low battery LED indicates that the cells should be replaced.

Temperature

Range for normal operation: -20ºC to +70ºC

Physical

Case 85 x 46 x 16mm.
Weight 50 grams (including batteries).
Battery 2 x ‘N’ cells (LR1) – alkaline or rechargable NiMH.

ECM641Price
£495