Which of the following could be the reason you are unable to access a repeater whose output you can hear?

The ability to access a repeater depends on several factors related to your transceiver settings and the repeater's requirements. If you can hear the output of the repeater but cannot access it, it indicates that your signal is not being accepted, which is likely due to one or more of the reasons provided in the choices.

Improper transceiver offset refers to the frequency difference required to communicate with the repeater. Most repeaters operate on a specific offset, meaning you need to set your transceiver to transmit at a different frequency than the one you are listening to. If this offset is not set correctly, your transmission will not reach the repeater even if you can hear its output signal.

The use of the wrong CTCSS tone (Continuous Tone-Coded Squelch System) can also prevent access to a repeater. Many repeaters use CTCSS tones as an access control mechanism. If your transceiver is not transmitting the correct tone that the repeater is expecting, it will ignore your signal, even if you can hear it.

Similarly, the wrong DCS code (Digital-Coded Squelch) serves a similar function as CTCSS but uses digital coding. If you are using an incorrect code, the repeater