What Does PL Tone Mean?

What does PL tone mean? Technically speaking, PL tones are sub-audible tones that are transmitted simultaneously with the speech portion of the transmission. It is these tones that prevent other people from receiving the transmission.

At same time, What are repeater tones?

A repeater tone filters noise by adding a low-frequency audio tone to the voice. If there are several groups of users on one radio frequency, CTCSS mutes users who are using a different CTCSS tone or no CTCSS at all.

In conjunction with, What is an uplink tone on a repeater? To reduce confusion as to which tone is being referenced in terms of a paired frequency set (duplex with separate input and output frequencies, as repeaters typically use, the uplink tone refers to the tone that the user radio transmits with the uplink frequency and is required to activate (key) the repeater.

Consequently, What is a PL on set?

PL = Private Line and DPL = Digital Private Line, both by Motorola. The GENERIC terms for these functions are CTCSS (or CT for short) and DCS (or DC for short).

Do I need CTCSS to listen to a repeater?

In order to prevent unwanted accesses, modern amateur radio repeaters require CTCSS tones to be transmitted. In order to prevent amateur radio repeaters being unnecessarily activated, there is always an access method required.

Related Question for What Does PL Tone Mean?


What is PL amatuer radio?

PL, an acronym for Private Line, is Motorola's proprietary name for a communications industry signaling scheme called the Continuous Tone Coded Squelch System, or CTCSS. It is used to prevent a repeater from responding to unwanted signals or interference.


What is a repeater uplink frequency?

Uplink/downlink frequency applies to the usage of a radio repeater. The uplink frequency is used by the central station transmitter. For example, my central station transmitter transmits at 469.5000 MHz, which is the repeater's uplink frequency. That is the frequency that the repeater uses to receive.


Is uplink receive or transmit?

Downlink: This is the frequency that the repeater uses to transmit. In other words, when people talk on this repeater, this is the frequency you use to hear them. Uplink: The receiver listens on this frequency.


What is the difference between tone and tone squelch?

In the case of my Yaesu ham radios, "tone" is used when you want to transmit a CTCSS tone in order to access a repeater. "Tone squelch" is used to transmit a CTCSS tone, as well as have the tone also used on the receive (repeater output) frequency as well.


What is uplink tone Csq?

CSQ literally means "constant squelch". The idea of the tones is to only 'open' your squelch when the programmed tone is received. CSQ just means the squelch is not controlled by the tone.


What is uplink downlink?

In satellite telecommunication, a downlink is the link from a satellite down to one or more ground stations or receivers, and an uplink is the link from a ground station up to a satellite. Some companies sell uplink and downlink services to television stations, corporations, and to other telecommunication carriers.


What is uplink in LTE?

The actual implementation of the technology will be different between the downlink (i.e. from base station to mobile) and the uplink (i.e. mobile to the base station) as a result of the different requirements between the two directions and the equipment at either end.


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