Editing Gravsol-42 (section)

=== Frequency changes ===

During the later period of its operation, Gravsol-42 began appearing on a number of different frequencies.

The station was no longer consistently associated with 4835 kHz, and listeners began reporting transmissions at frequencies in the '''6–7 MHz''' range.

Reported frequencies included frequencies from approximately '''6440 kHz to 7026 kHz'''.

The reason for the frequency changes has never been publicly established. Possible explanations suggested by listeners have included interference avoidance, transmitter testing, or changes to the station's operating schedule.

{| class="wikitable"
! Frequency
! Period
! Notes
|-
| 4834 kHz
| 2016
| One of the earliest reported frequencies
|-
| 4835 kHz
| Early period
| Main frequency associated with the station
|-
| 6440 kHz
| Later period
| Part of the station's later frequency range
|-
| 7026 kHz
| Later period
| One of the highest reported frequencies
|}

Because many reports were made independently by radio enthusiasts, the exact chronology of every frequency change is uncertain.