What is a common repeater frequency offset in the 70 cm band?

In the 70 cm band, which ranges from 430 MHz to 440 MHz, the standard frequency offset for repeaters is typically plus or minus 5 MHz. This means that when you transmit on a specific frequency, the repeater will typically operate on a frequency that is 5 MHz higher (for a positive offset) or 5 MHz lower (for a negative offset).

This offset is established to minimize interference between users operating within the same frequency band and to allow the repeater to effectively manage multiple incoming signals. By using this standard offset, operators can expect consistent behavior from repeaters across the 70 cm band, making it easier to communicate without accidental interference from other operators.

Other options do not accurately reflect the common repeater offset for this band. For example, plus or minus 600 kHz, plus or minus 500 kHz, or even plus or minus 1 MHz do not align with the established practices used in amateur radio. These values may be more applicable to other frequency bands or specific configurations but are not standard for the 70 cm band.