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Devices to jam the downlink frequencies on various cellular telephone systems. Prevents the cellular phone user from sending or receiving phone calls within the small jam radius. Advanced electronic and RF engineering technical skills will be required.
Schematics
- Cellular phone jammer, version 2 schematic VCR tuner method, older design - reference only (24k PostScript)
- Cellular phone jammer, version 2 schematic VCR tuner method, older design - reference only (43k PNG)
- Portable cellular phone jammer, version 3 schematic Portable version, updated (35k PostScript)
- Portable cellular phone jammer, version 3 schematic Portable version (110k PNG)
- Portable cellular phone jammer, version 4 schematic Portable, experimental dual purpose usage (32k PostScript)
- Portable cellular phone jammer, version 4 schematic Portable, experimenal dual purpose usage (93k PNG)
- U.S. PCS phone jammer schematic Experimental version (37k PostScript)
- U.S. PCS phone jammer schematic Experimental version (84k PNG)
- U.S. PCS phone jammer schematic Updated, experimental version (28k PostScript)
- U.S. PCS phone jammer schematic Updated, experimental version (74k PNG)
- Simple Near Field U.S. PCS phone jammer schematic Untested, (11k PostScript)
- Simple Near Field U.S. PCS phone jammer schematic Untested (40k PNG)
Datasheets
- Hitachi PF0030 MOSFET power amplifier module datasheet (91k PDF)
- Hitachi PF0031 MOSFET power amplifier module datasheet (68k PDF)
- Motorola MHW1910-1 10 Watt 1.9 GHz RF power amplifier datasheet (69k PDF)
- Maxim MAX2622/MAX2623 VCO datasheet (150k PDF)
- Maxim MAX2750/MAX2752 VCO datasheet (150k PDF)
- WJ AG603-86 amplifier datasheet (87k PDF)
- Micronetics M3500-1324 VCO datasheet (42k PDF)
- Philips BGY204 3 Watt 880-915 MHz RF power amplifier datasheet (110k PDF)
- Philips BLT82
Pictures
- 800 MHz Cellular Phone Jammer Pictures From the first prototypes to the big one.
- Hitachi PF0030 Power Amplifier Module Installed in a Nokia Cellular Phone
- Hitachi PF0031 Power Amplifier Module in a Portable Jammer
- Nokia 2110i Internal View
- Siemens M35i Dualband Cellular Phone Circuit Board Downlink: 935-960 MHz & 1805-1880 MHz Uplink: 890-915 MHz & 1710-1785 MHz
- Nokia 2110i Duplexer Receive side on the left, antenna in the middle, transmit side on right
- Nokia 2110i Parts List
- Near Field PCS Jammer
- 4 Watt PCS Jammer - VCO/Sweep Circuits
- 4 Watt PCS Jammer - Power Amplifier
- Internal picture of a commercial GSM jammer (P2JBZ)
- Internal picture of another commericial 1800 MHz cellular jammer
Notes
Other Countries
- GSM900 Jammer Experimental, untested (30k PostScript)
- GSM900 Jammer Experimental, untested (81k PNG)
- Brouilleur GSM 900MHz GSM Jammer - French
- Christian Frericks' Projects Cellular Jammers, DECT Mods, Pirate Radio
Notes
the max vco 2623 was sufficient to work from freq range of 700mhz-1100mhz. we introduced a control for diff sweep freq by varying the capacitance value of 555 timer ic in its astable mode of operation.the sweep best suited was 100khz and not 1khz.rest the remaining part was same we used pf08103b as the power amp instead of pf0030 .
Commercial Jammers / Disablers
Cellular Phone/GPS "Burst" Tracking Device Jammer
- Cellular Phone/GPS "Burst" Tracking Device Jammer Simple device to defeat most cellular-based GPS tracking devices