image tag: relay station, image quantity: 5

1920x1280px

antenna, cold, landscape, mountain, radio tower, relay station, snow
2916x2184px

hockenheim, switchyard, transformer, relay, distribution, station, electricity
1704x2272px

transmission tower, transmitting antenna, relay station, telecommunication system, communications, sky, blue sky
2981x2068px

hockenheim, switchyard, transformer, relay, distribution, station, electricity
4000x3000px

telephone system, historically, pbx, private branch exchange, establishment of mediation, phone, old