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Direction Finder 2G/3G/4G - 2025 Edition. Google Watch Support
The newest device
Direction finder last edition
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Main characteristics
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New improved DT-Finder is a pocket size eight RF band direction finder aimed to precisely detect the physical location of target cellular phone captured by IMSI and IMEI catcher, covertly operating at known dow ARFCN channel.
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MAIN FEATURES
• Extended operating time (up to 6 hours)
• Increased dynamic range:
3G, LTE - 115 dB
LTE (Band7) - 130 dB
2G - 130 dB
• RF sensitivity:
2G -110 dBm
3G, LTE - 93 dBm
• Operates across GSM, UMTS, and LTE bands:
GSM-E900-1800MHz
GSM-A850-1900MHz
UMTS Bands: 1(2100),2(1900),4(1700-AWS),5(850),8(900),10(1700-AWS+)
• LTE bands:1(2100),2(1900),3(1800),4(1700),5(850),7(2600), 8(900),10(1700),12(700),20(800)
• Antenna:
Gain 3 dBi
HPBW 120 |
PRINCIPLE OF OPERATION
Hand-held finder is a compact and cost-effective radio direction-finding device for target mobile handset’s location tracking when used in combination with GSM or catcher system when captured mobile stays with GSM, UMTS, LTE catcher system at known ARFCN uplink channel.
This equipment can be used along with any known type of GSM, UMTS, LTE IMSI and IMEI catcher. Highly sensitive receiver module allows extending the search radius to 50...1000 meters.
Receive panel antenna is sized TBD mm. It can be placed covertly either under a suit or inside a small handbag/briefcase along with DF receiver unit.
The antenna is assembled in a waterproof case. Android smart phone is managing DF GSM, UMTS, LTE receiver over Bluetooth interface.
It provides four types of feedback for the user: through a headset connected directly to the device via Bluetooth or wired, or through the built-in telephone speaker or its headset.
COMING SOON! DIRECTION FINDER FOR DRONE
DF is a device that have to be used with IMSI catchers or Active interception systems
| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB |  download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
 | PARTS OF THE FINDER
NEW VERSION 1. Headphone jack. 2. SMA antenna connector.
3. USB-C Connector for charging
and software updates.
4. Indicator of charging,
discharged battery, errors.
5. Bluetooth indicator.
6. Down switch button.
7. Menu item switching button.
8. UP switch button.
9. The “Enter” button is designed
to turn the device on and off, enter the menu and confirm
the selected command in the device menu.
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PARTS OF THE FINDER OLD VERSION 1. Volume wheel.
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| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
 |
PARTS OF THE APP
1. Connection button\indicator. 2. Battery indicator.
3. Go to Bluetooth setting button.
4. GPS position and accuracy indication.
5. Max level indicator.
6. Level indicator.
7. Sound mode switch/indicator, possible modes: OFF, TONE, BEEP.
8. Erasing the directional diagram button.
9. Network type change button (RAT change).
10. Map/Compass mode switch.
11. Attenuator down button.
12. Attenuator up button.
13. ARFCN input field.
14. Auto Attenuator button\indicator, the app will default to Auto Attenuator Mode, press this button to switch between Auto and Manual Attenuator Mode.
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| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
Allows to combine several direct finders into a single network with the calculation of target coordinates using the triangulation method.
OPERATION PROCEDURE WITH A WEB SERVER
 | Switch to map mode using the button. The application screen will change to the map.
1) An agent with whom the connection is lost or who receives a signal level that is too low, in this case its last «normal» level is displayed, and the border color changes to red 2) «Operator circles», their diameter is inversely proportional to the signal level. 3) Target point, displayed only when the location can be calculated and shows the location where the target is approximately SEARCH PROCEDURE 1) Drive towards the operator with the smallest circle diameter Rotate 360 periodically to check the maximum signal level
2) When the target point appears, check it for authenticity: if it is far from all operators, perform an additional 360 rotation, if you are sure of the authenticity of the point, go to it. |
| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
A light version of the direction finder is made specifically for installation on a drone
API for integration with customer software
| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
| File Title | Release Date | File Type | Size (mb) | Action |
|---|---|---|---|---|
| Last edition Direction Finder DT-RDF | 05-20-2025 | Documentation (pdf) | 1.11 MB | download |
| Direction Finder DT-RDF | 05-27-2025 | Documentation (pdf) | 0.79 MB | download |
| DT-RDF antennas | 05-27-2025 | Documentation (pdf) | 0.11 MB | download |
| Direction Finder. Old version | 08-15-2018 | Documentation (pdf) | 2.07 MB | download |
| Android Application | 01-27-2023 | Software (apk) | 4.27 MB | download |
To access this product file, get partner STE status
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 Additional Product Information |
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 Support GSM, DCS, UMTS (3G), LTE (4G) |
| Improved Bluetooth BlueNRG-2 |
| OLED display |
| Improved signal processing algorithms |
| Improved sensitivity |
| 0-100 dB attenuator |
| Software with triangulation processing and map output |
| Very easier pairing with smartphone (by one button push) |
| Extended operating time |
| New element base |
| Google Watch support |
| Light version for a drone |
| Aluminium case |
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