This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Next revision Both sides next revision | ||
downlink_tone [2019/02/10 22:45] kd6kpc |
downlink_tone [2019/02/10 22:51] kd6kpc |
||
---|---|---|---|
Line 12: | Line 12: | ||
The tone system can also be applied to the downlink tone to limit interference and noise on the user's radio. There are many sources of noise that can break the set squelch threshold, even though the repeater is not transmitting. Although the radio will still internally " | The tone system can also be applied to the downlink tone to limit interference and noise on the user's radio. There are many sources of noise that can break the set squelch threshold, even though the repeater is not transmitting. Although the radio will still internally " | ||
- | To reduce confusion as to which tone is being referenced in terms of a paired frequency set (duplex with separate input and output frequencies, | + | Not all repeaters use a downlink tone. If a user sets tone squelch in their radio on a tone that is not being tramsmitted by the repeater, the squelch will never open and the user will never hear a transmission. Also, repeaters may not transmit the same tone that is used to receive (uplink). This is called " |
+ | |||
+ | To reduce confusion as to which tone is being referenced in terms of a paired frequency set (duplex with separate input and output frequencies, | ||
Confusion sometimes occurs when it is not known from which radio, the user's or the repeater' | Confusion sometimes occurs when it is not known from which radio, the user's or the repeater' |