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What are RF Frequencies?
RF Frequency Radio Frequency
Rule of Thumb The higher the frequency the shorter the transmission range. The lower the frequency the longer the transmission rang.
900 MHz Transmitters transmit a longer distance than 1.2 GHz and 2.4 GHz Transmitters.
1.2 GHz and 2.4GHz Transmitters have better PTR (Punch Thru Rate) AKA Penetration than 900 MHz Transmitters.
Lower Frequencies 1 KHz to 50 MHz Transmit signals a longer distance.
RF detectors used to detect these frequencies use longer metal antennas.
The common frequencies used within the lower frequency range band fall between
30 MHz to 50 MHz.
Higher Frequencies 51 MHz to 6 GHz Have better penetrations (Punch thru Rate). These frequencies Transmit a shorter distance.
RF Detectors used to detect these frequencies use the shorter whip antenna.
Power: The more power the transmitter has the longer the distance it will transmit.
250 Mill watt - 500 Mill watt power transmit a shorter distance than a 1-3 watt powered transmitter.
Most eavesdroppers use Analog Bugs for two reasons:
Analog bugs cost less
Analog bugs are easier to get.
Digital Bugs
Digital bugs are very expensive
Digital bugs are very hard to get.
Amateurs do not use digital bugs.
Governmental and higher levels of law enforcement agencies have access to digital bugs.
Most new cell phones operate on a digital format
Cell phone can be used as bugs |