The are using a duplex frequency system where the base transmits on one frequency and listens on another AND the mobile units transmit on the freq the base listens on but listens on the freq the base transmits on.
EMS pokies jammers might work if you are talking about the jammers designed to operate the gambling machines in casinos. These jammers are generally owned and operated by the casino itself and are not legal to own.
2.4 ghz
Channel
Selective amplifier is an RF amplifier which selects particular frequency and amplifier so it can operate at fixed frequency.
Ships operate at a frequency of 60 hertz to match the standard electrical grid frequency used in the United States and other countries. This makes it easier to connect to shore power when in port and ensures compatibility with existing power systems.
The frequency of remote controls for the television varies from brand to brand. The ones that do operate using radio frequencies though are all generally low frequencies. Most remote controls today operate using infrared light signals though.
No, they operate on the standard wireless frequency: 802.11g.
up to radio frequencies i.e 20-20kh
The frequency of a system bus is measured in Hz. Modern computer system buses operate at hundreds of MHz or at GHz.
Microwave ovens typically operate at a frequency of 2.45 GHz, which corresponds to a wavelength of approximately 12.2 centimeters.
The ATmega8 microcontroller can operate at a maximum frequency of 16 MHz when powered with 5V. The minimum frequency at which it can reliably function is usually around 1 MHz.