Infrastructure On the summit is the
Kalmithaus, a hut managed by the
Palatine Forest Club mainly at weekends and public holidays. There is also a
weather station and a free-standing, steel-framed
radio tower, the Kalmit Transmitter (
Sender Kalmit).
Viewing tower Panorama After the 1868 viewing tower on the exposed summit had collapsed, in 1928/29 a new 21-metre-high observation tower was built by the Palatine Forest Club, which, from the outset was fitted with living accommodation, electric light and running water. From this tower there was a comprehensive panoramic view that not only took in the entire Palatine Forest and the
Vosges to the south, but also, on clear days, the ranges of the
Hunsrück,
Taunus,
Odenwald and
Black Forest. According to contemporary sources, the Kalmit was thus
"the most beautiful viewing mountain in the Palatinate". Since then, in and around the tower, various survey and radio-technical facilities have been added so that it was periodically and then generally placed out of bounds to the public.
Transmitter station The Kalmit Transmitter is used to broadcast the
RPR1 103.6 MHz and
BigFM 106.7 MHz radio stations. Amateur radio hams also use the height and location of the Kalmit. A branch of the
German Amateur Radio Club,
Ortsverband Z22, erected a
relay station on the summit with the call sign, DB0XK, which was authorized on 30 November 1971 by the present-day
Federal Network Agency with a frequency of 145.700 MHz. The amateur radio relay is housed in the tower next to the Kalmithaus.
Visibility measuring station Since 2012 there has been a special facility on the Kalmit for measuring visibility; its task is to record visibility in the Palatine Forest-North Vosges Biosphere Reserve. which is managed by the
House of Sustainability in Johanniskreuz, a department of the Rhineland-Palatinate State Forestry Commission. Another feature is that the values were introduced to alert nature lovers, because exceptional visibility is very rare and difficult to forecast.
Views The summit has a good view of the
Rhine Plain, over 500 m below, as well as the nearby villages of Maikammer and St. Martin. There are views of the cities of Ludwigshafen,
Mannheim on the plain and also of
Speyer and
Philippsburg. In the far distance, the southwestern part of the
Odenwald forest near
Heidelberg and the first foothills of the northern
Black Forest may be made out.
Schwetzingen Castle, 36 kilometres away, is exactly west-southwest of the Kalmit. To the north-northwest, also 36 kilometres distant, is the highest summit in the Palatinate, the 686.5 m high Donnersberg in the
North Palatine Uplands. File:KalmitGipfel.jpg|The
Kalmithaus (left) and weather station File:Kalmit 02.jpg|Kalmit Transmitter File:Kalmit, Blick gen Osten.JPG|View looking east == Hüttenberg Felsenmeer ==