Repeater-START, the only open-source offline repeaters mapping app, is available on Github. A working Android phone port is also available.
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Repeaters in grid square DM13FU

This is a listing of repeaters in this grid square.
You can read more about Maidenhead locator/grid squares here from the ARRL website.
If you find one of your local repeaters to be missing, please add it to the list.

Repeater Callsign Frequency Offset Encode Decode Nearest City Restriction (if any)
KE6PCV 446Mhz 0Mhz 0.00 0.00 Riverside, CA USA Favorite
KE6PCV 445.22Mhz -5Mhz 100.0 Corona, CA Favorite
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