Radio signals from towers. (Fallout 4)

Since there are no subs, it strains to search - I decided to share what I found.

Tower signals 0BB-915
infa and screenshots distress signal The
bunker is located in the parking lot of the trailers.
http://i11.pixs.ru/storage/2/4/9/SBkartaJPG_9857344_19505249.jpg
http://i11.pixs.ru/storage/2/8/1/SBmestoJPG_4818489_19505281.jpg (orientation screen - hatch behind barrels )
even in the pool the safe is "complex".
raider signal
map
http://i11.pixs.ru/storage/3/3/4/reyderkart_6384226_19505334.jpg
look for a metal "barrel" with one raider on the side of the barrel a hatch under the ground.
http://i10.pixs.ru/storage/3/7/5/reyderboch_2303139_19505375.jpg
http://i11.pixs.ru/storage/3/9/7/reyderlykJ_1376402_19505397.jpg

civil defense
signal the signal comes from satellite dishes - behind the far hatch at the base - the most useful of the three - 4 nuclear units.
http://i11.pixs.ru/storage/4/7/7/voenkakart_8254455_19505477.jpg
something like this.