160 Meters

1.800 – 2.000 MHz

1.9 MHz is the lowest frequency most hams ever use, and the daytime D-layer swallows it whole. In daylight 160 meters does essentially nothing. There is no clever trick and no workaround — you wait for dark.

WHY THEY CALL IT TOPBAND — A WINTER NIGHT BAND, AND ONLY THAT

1.9 MHz is the lowest frequency most hams ever use, and the daytime D-layer swallows it whole. In daylight 160 meters does essentially nothing. There is no clever trick and no workaround — you wait for dark.

After sunset it becomes something else entirely. On a cold, quiet winter night 160 will cross oceans. Summer is the enemy: thunderstorms hundreds of miles away lay down a constant crash of static that can make the band unusable even when propagation is perfect.

It is also brutally hard on antennas. A full half-wave is 260 feet long. Almost nobody has that, so most operators run a compromise and earn every contact. That difficulty is precisely why working someone far away on topband is a badge of honour.

WHEN IT WORKS

BEST · Winter, full dark, low noiseWORST · Any daylight · summer storm staticWATCH · Grey line · the quietest hours after midnight

WHO MAY TRANSMIT WHERE · 47 CFR §97.301

FREQUENCY (MHz)MODELICENSE CLASS
1.800–1.810Digital / dataGeneral, Advanced, Extra
1.810–1.843CWGeneral, Advanced, Extra
1.843–2.000Voice / SSB / imageGeneral, Advanced, Extra
Is 160 meters open right now? The Ham Radio IQ app shows the MUF and LUF over your head this minute, whether this band is above or below them, and a map of real contacts being heard worldwide. See the board →

EVERY BAND