FM radio station on 91 MHz in Greenland is heard in Ireland - 19th May 2024

On the 19th of May 2024, FMDXer Paul Logan in the north-west of Ireland reported reception of a radio station in Greenland on 91.0 MHz.

Logbook 2024-05-19 
UTC QRG ITU Station, location Details Distance km kW ERP Pol
2044 91.00 GRL Kalaallit Nunaata Radioa, Niaqernaartik/KTYC (Kap Tycho Brahe) 2095 0.1 v

The radio is located on the east coast of Greenland, has an effective radiated power of just 100-watts and runs vertical polarisation. Paul logged it at 20:44 UTC.

A 52-second audio file from the reception can be heard HERE

The distance to Paul's location in Lisnaskea, Co Fermanagh is 2095kms and the propagation mode was Sporadic-E (Sp-E). While the distance is well within the maximum for a single hop of Sporadic-E, it's always interesting when a FM station in Greenland is heard in Europe.

Greenland is technically part of North America and hints hopefully at maybe some very rare trans-Atlantic signals on the FM band in the weeks ahead.

Link...

1) More examples of long distance paths on my 88-108 MHz page.

The Experimental Station WA2XMN on 42.8 MHz

In 1933, frequency modulation or FM radio was invented by Edwin H. Armstrong in the USA to reduce the static and interference associated with AM transmissions.

In June of 1936, Armstrong established the experimental station WA2XMN at Alpine, New Jersey and began experimental FM transmissions with a 40kW power level in the 42 to 44 MHz band.

After the second world war, the FCC moved the FM band up to 88 to 108 MHz and this is the one we are familiar with today.

To commemorates the pioneering broadcasts of the world's first FM radio station, WA2XMN occasionally broadcasts on a frequency of 42.8 MHz. This was one of the frequencies used by Armstrong's station on the original FM broadcast band.

The station broadcasts with a power of 250 watts from the same Armstrong Tower in Alpine, New Jersey. When it does broadcast, the FM signals have been heard by radio enthusiasts within a 160km / 100 radius.

The QSL card at the top of the post was sent out for a transmission in April of 2018.

I'm not sure when the last broadcast was but it would be interesting to hear of any future transmissions.

Links...
1) WA2XMN website with reception reports
2) Email archive about test transmissions