A partially guyed tower is a tower structure which consists of a free-standing basement, in most cases of concrete or of lattice steel with a guyed mast on the top. The anchor basements of the guyed mast

Guyed mast

A guyed mast is a tall thin vertical structure that receives support from guy lines.Guyed masts are frequently used for radio masts. The mast can either support aerials mounted at its top, or the entire structure itself can function as an antenna ; this is called a mast radiator...

 can be on the top of the tower or on the ground.

Use

Partially guyed towers can be used e.g. when a very high tower for FM and TV transmission is required, which should also carry antennas for directional radio services in a much lower height. In this cases the antennas for directional radio services are mounted on the top of the free-standing part of the tower, while the guyed mast on its top carry the FM and TV antennas.
They can be also used in order to upgrade small stable towers (like watertowers) with a long antenna mast for FM and TV broadcasting.
However their use is rare, and done only in some European countries.

Partially guyed tower with anchor basements on the top of free-standing tower

Guyed masts on skyscrapers or thicker towers are often guyed on the roof of the free-standing basement structure.
In this case there is no major constructive difference of the guyed mast to a guyed mast on plain ground and the construction of the free-standing basement tower does not differ much from a tower of the same height without the mast on the top. The guyed mast of such constructions is usually less tall than the free-standing basement tower.

Partially guyed tower with anchor basements on the ground

Much more rarely and interesting under constructive details are partially guyed towers at which at least one basement of the guy anchors is on the ground. At such structures, the guyed mast on the top is in opposite to guyed towers with anchor basements on the top of free-standing tower much taller (in most cases taller than the basement tower) and it must be considered at its construction and maintenance, that the basement of the guyed mast is situated much more elevated than that of the anchor basements.

Not considered as partially guyed towers are guyed mast radiator

Mast radiator

A mast radiator is a radio mast or tower in which the whole structure itself functions as an antenna. This design is commonly used for transmitting antennas operating at low frequencies, in the VLF, LF and MF ranges, in particular those used for AM broadcasting. The metal mast is electrically...

s, which stand on the top of a helix building

Helix Building

A helix building is a small structure at the base of a longwave or mediumwave radio transmitter. Within, there are capacitors and coils for coupling the signal from the feed cable to the antenna. Active components such as amplifiers are usually not housed in a helix building...

, because a helix building is much smaller than the mast radiator on it. Such constructions the Mühlacker radio transmitter and the Ismaning radio transmitter.

Realized towers

Tower	Year	Country	Town	Pinnacle height	Remarks
Gerbrandy Tower Gerbrandy Tower The Gerbrandy Tower is a tower which was built in 1961 in the Netherlands.-Description:It is situated in IJsselstein. The Gerbrandy Tower is used for directional radio services and for FM- and TV-broadcasting. The Gerbrandy Tower consists of a concrete tower with a height of 100 meters on which a...	1961		IJsselstein IJsselstein IJsselstein is a municipality and a town in the Netherlands, in the province of Utrecht. IJsselstein received city rights in 1331. IJsselstein owes its name to the river Hollandse IJssel which flows through the city....	366.8 m
Vännäs TV Tower Vännäs TV Tower Vännäs TV Tower is a 323 metres tall structure used for FM- and TV-broadcasting near Vännäs in Sweden.It is like Gerbrandytoren a partially guyed tower with a concrete tower as basement and a mast guyed to the ground on the top...	1988		Vännäs Vännäs Vännäs, from Wendenäs, ‘where the river changes it path’ is a locality that have existed since 1539. Vännäs is the seat of Vännäs Municipality in Västerbotten County, Sweden and had roughly 4,100 inhabitants in 2005....	323 m
Höiåsmasten	1980		Halden	320 m
Zendstation Smilde Zendstation Smilde Zendstation Smilde is a tall, guyed structure similar to the Gerbrandy Tower, built in Hoogersmilde, the Netherlands in 1959 for directional radio services and TV and FM-transmissions. It consists of an 80 metre high reinforced concrete tower and had until a fire accident on July 15, 2011, a guyed...	1959		Smilde	303.5 m
Cutler Naval Station	1960		Cutler, Maine	? m
Lyngdal transmitter	1954		Lyngdal	? m	http://www.webcitation.org/query?url=http://www.geocities.com/TelevisionCity/Lot/2941/towers/lyngdal1.jpg&date=2009-10-25+11:09:16
Geitfjellet transmitter	1962		Grong	? m	http://www.webcitation.org/query?url=http://www.geocities.com/TelevisionCity/Lot/2941/towers/grong1.jpg&date=2009-10-25+11:09:12
Greipstad transmitter	1958		Greipstad	? m	http://www.webcitation.org/query?url=http://www.geocities.com/TelevisionCity/Lot/2941/towers/greipstad.jpg&date=2009-10-25+11:09:07
Steinfjellet transmitter	?		Bremanger	? m
Lakssvelafjellet transmitter	?		Bjerkreim	? m
Brunnby transmitter	?		Uppsala Uppsala - Economy :Today Uppsala is well established in medical research and recognized for its leading position in biotechnology.*Abbott Medical Optics *GE Healthcare*Pfizer *Phadia, an offshoot of Pharmacia*Fresenius*Q-Med...	225 m
TV Tower Brest - Roc Trédudon	1974		Roc Trédudon	220 m	lattice tower as basement
Telecommunication Tower Aarhus Telecommunication Tower Aarhus Telecommunication Tower Aarhus, or in Danish Søsterhøj Antennen / Søsterhøj Senderen, is the main radio/television transmission tower in Aarhus, Denmark, and the second tallest building in Denmark. The construction of it began in 1956, and the tower was finished later the same year...	1956		Arhus	216.1 m
Nordhue transmitter	?		Elverum Elverum is a town and municipality in Hedmark county, Norway. It is part of the traditional region of Østerdalen. The administrative centre of the municipality is the town of Elverum... , Hedmark Hedmark is a county in Norway, bordering Sør-Trøndelag, Oppland and Akershus. The county administration is in Hamar.Hedmark makes up the northeastern part of Østlandet, the southeastern part of the country. It includes a long part of the borderline with Sweden, Dalarna County and Värmland County. The...	195 m	lattice tower as basement
Kekesteto TV Tower Kékestető TV Tower Kékestető TV Tower is a 178 metres tall TV tower built of reinforced concrete on 1014 metres high Kékestető mountain. Kékestető TV Tower is a partially guyed tower as its antenna mast is guyed to the ground...	?		Kekesteto	178 m
Gelukskroon transmitter Gelukskroon transmitter Gelukskroon transmitter is a large FM-/TV-transmission facility near Pretoria, South Africa It consists of several towers among them a partially guyed lattice tower standing on the roof of a building, which is the tallest tower of the facility, and a telecommunication tower built of concrete.-... , main tower	?		Pretoria	?	http://radio.ffgsk.de/pretoria_gelukskroon.php
Brudaremossen masts	1980		Gothenburg	172 m
Sendeturm Dobratsch Sendeturm Dobratsch The Sendeturm Dobratsch is a 165m/541ft high radio tower on the Dobratsch mountain in Carinthia, Austria, built in 1971...	1971		Dobratsch Mountain	165 m
Shchyolkovo Radio Mast	?		Shchyolkovo	150 m	Mast radiator on small lattice towerhttp://foto.mail.ru/mail/leon77-77/rc5/,http://www.radioscanner.ru/forum/index.php?action=vthread&forum=5&topic=27867
Mont Agel Broadcasting Mast	1946		Fontbonne	145 m	originally mast radiator with lattice tower as basement, today used for FM-/TV-broadcasting http://mcstory.free.fr/img/ant/fontbonne_54.jpg
Waldenburg TV Tower	?		Waldenburg	145 m	antenna mast will be dismantled in 2008
Sendeturm Jauerling Sendeturm Jauerling The Sendeturm Jauerling is a tower for directional radio services, FM and TV broadcasting on the Jauerling mountain in Austria. Sendeturm Jauerling was built in 1958...	1958		Jauerling	141 m	lattice tower as basement
Hoherodskopf Hoherodskopf Hoherodskopf is a mountain of Hesse, Germany....  old telecommunication tower	?		Hoherodskopf	?	lattice tower as basement, replaced by Hoherodskopf telecommunication tower, http://www.usarmygermany.com/Units/Signal/Taufstein%20prob%201960s%20or%201970s.jpg
Pietricica transmitter	? ? or is a letter derived from the Latin alphabet. Both glyphs of the majuscule and minuscule forms of this letter are based on the rotated form of a minuscule e; a similar letter with identical minuscule is used in the Pan-Nigerian Alphabet and some alphabets based on the African reference...		Piatra Neamţ	?	http://www.predavatel.com/ro/7/pin.htm#pietricica
Wachberg transmitter	?		Weitra	130 m
Mount Corhanwarrabul, Channel 7 Tower	1956		Mount Dandenong, Victoria Mount Dandenong, Victoria Mount Dandenong is both a mountain and small township/suburb of Greater Melbourne, Victoria, Australia, 35 km east from Melbourne's central business district. Its Local Government Area is the Shire of Yarra Ranges...	131 m	Lattice tower as basement
Torfhaus Telekom Transmitter	?		Torfhaus Torfhaus Torfhaus is a village in the borough of the mining town of Altenau in the Harz mountains of Germany and lies at a height of about .This small settlement consists mainly of restaurants, youth hostels, ski huts and large car parks. It is the highest settlement in Lower Saxony...	130 m	was transformed in a pure guyed mast
Tokaj TV Tower	1960		Tokaj	130 m
Ylojärvi TV Tower	?		Ylojärvi	124 m
Transmitter Geiersberg	?		Geiersberg	124 m	lattice tower as basement
Criuleni TV Tower	? ? or is a letter derived from the Latin alphabet. Both glyphs of the majuscule and minuscule forms of this letter are based on the rotated form of a minuscule e; a similar letter with identical minuscule is used in the Pan-Nigerian Alphabet and some alphabets based on the African reference...	Moldova Moldova Moldova , officially the Republic of Moldova is a landlocked state in Eastern Europe, located between Romania to the West and Ukraine to the North, East and South. It declared itself an independent state with the same boundaries as the preceding Moldavian Soviet Socialist Republic in 1991, as part...	Criuleni	123 m	http://www.frocus.net/images/antennas/Dubasari/mast_sheriff.jpg
Tighina TV Tower	? ? or is a letter derived from the Latin alphabet. Both glyphs of the majuscule and minuscule forms of this letter are based on the rotated form of a minuscule e; a similar letter with identical minuscule is used in the Pan-Nigerian Alphabet and some alphabets based on the African reference...	Moldova Moldova Moldova , officially the Republic of Moldova is a landlocked state in Eastern Europe, located between Romania to the West and Ukraine to the North, East and South. It declared itself an independent state with the same boundaries as the preceding Moldavian Soviet Socialist Republic in 1991, as part...	Tighina	? m	http://frocus.net/images/antennas/Bender/mast_4.jpg
Transmission Tower Lindenfels	?		Lindenfels	122 m	lattice tower as basement
Transmitter Boppard	?		Boppard-Fleckertshöhe	121 m	lattice tower as basement
Makarki Directional Radio Tower Makarki Directional Radio Tower Makarki Directional Radio Tower is a 120 metre tall tower used for directional radio and FM broadcasting by Polskie Radio - Regionalna , located at in Białystok....	?		Makarki	120 m	lattice tower as basement
Uzd TV Tower	?		Uzd	120 m	http://www.panoramio.com/photos/original/5083081.jpg
Transmission Tower Hesselberg	?		Hesselberg	119 m	lattice tower as basement
Hegyhátsál TV Tower Hegyhátsál TV Tower Hegyhátsál TV Tower is a 117 metres tall transmission tower near Hegyhátsál at Hungary at 46°57'21N and 16°39'08E. Hegyhátsál TV tower is a tower is one...	?		Hegyhátsál	117 m
Reichenhain Transmission Tower	?		Chemnitz	99 m	lattice tower as basement, was before June 2007 free-standing
Mount Ślęża transmitter	1958		Mount Ślęża	98 m	dismantled, after taller additionally guyed tower Additionally guyed tower An additionally guyed tower is a free-standing tower, which is also additionally guyed.An additional guying can be temporarily or permanently. Temporarily additional guying is used when work on static relevant parts of the tower is done....  was built in 1972
Still Pond Signal Tower	?		Still Pond, Maryland	83.8 m	http://celebrating200years.noaa.gov/magazine/signals/wood_tower_450.jpg
Towers on roof of Heckeshorn Shelter	1948		Berlin	? m	2 towers, were used from 1948 to 1967 for a radio relay link to Lower Saxony. Dismantled in 1967
Coburg-Eckardtsberg Radio Tower	?		Coburg	68 m	prefabricated concrete tower as basement
Kvasovka Radio Tower	?		Kvasovka	? m	Pinnacle guyed on ground and on 4 crossbars mounted on the lower part of the towerhttp://st2400.narod.ru/mv_kvasovka_1_20050916.jpg
Alfândega da Fé Transmitter	?		Alfândega da Fé	?	http://mundodaradio.lusopt.info/forum/viewtopic.php?t=782 http://www.postimage.org/aVX1MM9-82f8bd403f2c3adaa09d6d9626d4193d.jpg
Monte do Faro transmitter	?		Valença	?	http://mundodaradio.lusopt.info/forum/viewtopic.php?t=743, http://www.postimage.org/aV2Dxs0J-82f8bd403f2c3adaa09d6d9626d4193d.jpg
Valença Rádio Comercial transmitter	?		Valença	?	http://mundodaradio.lusopt.info/forum/viewtopic.php?t=743, http://www.postimage.org/aV2DPWSr-82f8bd403f2c3adaa09d6d9626d4193d.jpg
Shabla transmitter	?		Shabla	? m	http://predavatel.com/bg/6/sha.htm
Old TV-Tower Inselberg Sender Inselsberg The Sender Inselsberg is a FM and television-transmission facility on the Big Inselsberg in Thuringia, Germany. It has two aerial towers, which were built in 1939 and 1974....	1939		Inselsberg Mountain	43.31 m	aerial mast removed
Windisch Bleiberg Transmission Tower	?		Windisch Bleiberg	?
Campobasso Transmitter	1959		Campobasso	?	mast radiator on castle
Chełmiec Radio Mast	?		Chełmiec	?	Guyed mast on castle ruin
Wrights Hill Radio Tower	?		Wellington	?	http://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Radio_aerials.JPG/451px-Radio_aerials.JPG