What is a Repeater?
A Repeater is a transmitter and receiver combined together to simultaneously receive and retransmit radio signals. Repeaters are typically located in optimal radio locations, such as on top of hills or towers, to give them wide coverage. As a result, a radio with very low power, such as a portable hand held or mobile radio can increase its range from a couple of miles to 50 or more miles. Amateur Radio Repeaters are operated by ham radio operators who maintain both the technical and organizational requirements. The Northern Westchester Amateur Radio Association maintains WB2IXR/R. The repeater is available to any amateur radio operator of Technician class or higher. Regular users are encouraged to become members of N.W.A.R.A. While use of the facility is open to any ham regardless of membership, the repeater has many special functions such as Autopatch (telephone calls through the repeater) which are only available to members of N.W.A.R.A.
A repeater is a network component that retransmits a message received on one of its ports on all of the other ports irrespective the address information contained in the message. A repeater is a shared resource in the communication path. Contention for this resource is typically resolved recognizing the contention, marking the contending messages as invalid and invoking a retransmission mechanism in the sending devices. The most familiar mechanism is the CSMA protocol of IEEE 802.3. • How does a switch affect 1588 synchronization? A switch potentially introduces multi-microsecond fluctuations in the latency between the 1588 master clock and a 1588 slave clock. Uncorrected these fluctuations will cause synchronization errors. The magnitude of these fluctuations depend on the design of the switch and the details of the communication traffic. Experiments with prototype implementations of IEEE 1588 indicate that with suitable care the effect of these fluctuations can be successfully manage
Related Questions
- I know that my Icom dual band handheld, or a mobile radio can do crossband repeat. Can I use them as a repeater with both receive and transmit frequencies on the same band?
- Can I use a PL-259 or UHF connector with a cellular amplifier or amplifier/repeater?
- Can a cell phone repeater be used to cover more than one floor?
