Android Fragment Jamming

PandwaRF Rogue Gov includes a jamming feature, configured by the smartphone. Any signal on a given frequency will be jammed and the target receiver will be blinded, forbidding the target message to reach its receiver. Note: the RF output power is limited, and cannot compete with high power dedicated RF jammers.

It is strongly recommended to test the effective range of jamming a device before attacking a real target, since jamming performance may vary with frequency, position of PandwaRF vs target remote control vs target receiver, etc. The jamming feature allows to jam between two frequencies in order to make all receivers installed in place deaf for the frequency band. The jamming is configured and started by the smartphone. Parameters that need to be set up before starting it are:

• Base Freq: the base frequency on which you want to center the jamming band
• Start Freq: jamming start frequency
• Stop Freq: jamming end frequency. Optional. Set a stop frequency to define the frequency band on which you want to start the jamming.
• Frequency Scale: the precision at which frequency changes when user move the Start frequency slider. Values can be 100 KHz, 200 KHz, 500 KHz, 1MHz
• Data Rate: RF transmission data rate. The shape of RF jamming depends on TX data rate.
  • High data rate means larger jamming, but lower transmission power
  • Low data rate means precise jamming, with higher transmission power If you don’t set a jamming stop frequency, the start frequency is the jamming center frequency. To start jamming:

1. Set a frequency Scale to define the precision of frequency setting. This step allows you to set the Start and Stop frequencies more precisely. For example, setting a base frequency of 433.8MHz and a frequency scale of 1M scales the frequency between 433.3MHz and 434.3MHz, with a center frequency of 433.8MHz
2. Enter a start frequency
3. Check the Stop frequency checkbox if you want to jam a range of frequency
4. Enter a stop frequency if needed
5. Set the jamming data rate
6. Press on Start Jamming

If you want to jam on a single frequency simply uncheck the stop frequency checkbox. The data rate sets the bandwidth for the jamming. The higher the data rate the greater the bandwidth is. Here is an example showing a jamming on 434MHz with respectively 20 Kbits/s and 250 Kbits/s data rate.

Data rate = 20 Kbits/s

Data rate = 250 Kbits/s