If you’ve ever wondered, “Can you block a GPS ankle tracker?” you’re not alone. Many people are looking for ways to protect their privacy and prevent unwanted tracking. In this guide, we’ll explore how GPS ankle trackers work, the frequencies they use, and the most effective ways to block their signals.
GPS ankle trackers typically use the following signal frequencies:
GPS Signals:
L1 Band (1575.42 MHz): Mainly used for positioning and navigation.
L2 Band (1227.6 MHz): Primarily for higher-precision military and differential GPS applications, though some civilian devices also use it.
L5 Band (1176.45 MHz): Offers stronger anti-interference and higher accuracy, mainly used in next-generation GPS devices.
Cellular Signals:
2G (GSM/GPRS): 850/900/1800/1900 MHz
3G (UMTS/HSPA): 850/900/1700/1900/2100 MHz
4G (LTE): Wide range of frequencies depending on the country and carrier, typically 700-2600 MHz.
5G (NR): Generally in the 600-3800 MHz range, with even higher millimeter-wave bands (24-100 GHz), though less common in regular GPS ankle trackers for now.
Bluetooth or Wi-Fi Signals (optional):
Bluetooth: 2.4 GHz
Wi-Fi: 2.4 GHz and 5 GHz
RF Signals (some specialized devices):
Some ankle trackers may use low-frequency RF signals for more precise short-range tracking, such as 433 MHz or 915 MHz.
These frequency combinations help trackers maintain more reliable positioning in various environments. If you need a device to block these signals, I can recommend a suitable option.
Below, we will take the specific product Gosafe G737 GPS ankle tracker by gosafesystem as an example to analyze the exact frequencies it uses, focusing on the local frequencies in Europe and the United Kingdom.
Signal Frequencies Used by the Gosafe G737 GPS Ankle Tracker in Europe and the UK:
Positioning Signals:
GPS L1 (1575.42 MHz)
GLONASS L1 (1602 MHz)
QZSS L1 (1575.42 MHz) (mainly enhances accuracy in the Asia-Pacific region)
Galileo E1 (1575.42 MHz) (Europe’s global navigation satellite system)
SBAS (EGNOS) (European satellite-based augmentation system)
Cellular Communication:
LTE CAT-1:
B3 (1800 MHz)
B7 (2600 MHz)
B8 (900 MHz)
B20 (800 MHz)
B28 (700 MHz)
2G/3G fallback:
GSM/2G: 900/1800 MHz
UMTS/3G: 900/2100 MHz
Short-Range Communication:
Bluetooth Low Energy (BLE) 4.0 (2.4 GHz)
Based on this specific GPS ankle tracker, you need to block at least the downlink frequencies of 700 MHz, 800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz, GPS L1, and WiFi/Bluetooth 2.4G. This means you would need at least an 8-antenna GPS Ankle Tracker jammer to completely block all these signals.