What is repeater tone up tone down?
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.
Do I need CTCSS to listen to a repeater?
Tone – For most repeaters, you will need to transmit a CTCSS tone to access the repeater. (CTCSS is Continuous Tone Coded Squelch System.) Repeaters with carrier access do not require a tone, so you can skip this step.
What is the difference between CTCSS and tone?
Simply Tone is encode only and CTCSS is encode and decode. DCS is always encode and decode.
What does T Ctcs mean?
In telecommunications, Continuous Tone-Coded Squelch System or CTCSS is one type of in-band signaling that is used to reduce the annoyance of listening to other users on a shared two-way radio communications channel. (See squelch.) It is sometimes referred to as tone squelch.
How do you tell if you hit a repeater?
The simple answer is to transmit on the repeater’s input frequency, saying something like ” < your callsign > testing” and listen for the repeater’s courtesy beep (assuming there is one) on its output. If you’ve heard the beep, then you’ve hit the repeater.
What is repeater downlink?
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. If you want to talk to people who are listening to this repeater, you need to transmit on this frequency.
Which is better DCS or CTCSS?
Digital subtone (DCS) has 104 subtones. Compared to CTCSS toneS, the code speed is faster, the bit error rate is lower, and much users in the same channel. It sends a number repeatedly encoded in digital as you speak, in the low frequencies so you do not hear it.
How many Ctcss tones are there?
38 tones
GMRS/FRS radios offering CTCSS codes typically provide a choice of 38 tones, but the tone number and the tone frequencies used may vary from one manufacturer to another (or even within product lines of one manufacturer) and should not be assumed to be consistent (i.e. “Tone 12” in one set of radios may not be “Tone 12” …
Should I use DCS or CTCSS?
Can I add a tone generator to a 25W repeater?
The only capability this 25W rig was missing is the ability to transmit CTCSS PL tones or sub audible tones to activate a repeater. I found the manual and schematics online and found that this rig was built to accept a tone generator as an add-on.
What is the sample rate of the tone generator?
You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the stop button is pushed. The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle.
How do I use the tone generator to generate a sound?
You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the stop button is pushed. The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle. Click on the buttons to select which waveform you would like to generate.
What waveforms can the tone generator play?
The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle. Click on the buttons to select which waveform you would like to generate. Please always make sure headphones/speakers are set to a low volume to avoid damage to hearing or equipment.