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Named model · Santana · Santana 109 base vehicles of the 1970s-80s; Mercurio radio fit issued from 1980

Santana 109 Mercurio

The Mercurio was the radio station (estación radio) of the Spanish Army's Programa OLIMPO signals system, carried in the hard-topped signals body of a Santana-built Land Rover 109 — the LR-109 ETRS. The Type B version paired a 400-watt ELMER SRT-470 HF set with a 30-watt VHF radio and a Siemens T-1000 teleprinter, powered by a 3 kW generator, and worked the army's radio-teletype and command nets from 1980 into the late 1990s.

Military · Spain
Santana 109 Mercurio — front three-quarter render

Factory colours

Codes on hover. Hex values are representative approximations of period paint unless a source states a measured value.

History

Santana Motor of Linares built Land Rovers under licence from 1958, and the Spanish armed forces were among its first and largest customers. Its 109-inch long-wheelbase military models — the 109 Militar and its signals-bodied derivative, catalogued as the LR-109 ETRS — became the standard mount for the Spanish Army's field communications equipment, fitted with a hard top, opaque curtains dividing the working compartment from the driving position, blackout curtains for night work and supplementary batteries for the radio racks.

Programme OLIMPO appeared in Spanish Army signals units in 1980 as an emergency plan. The service's first attempt at a tactical digital network, RADITE, had been under development since 1969 and was falling badly behind (it was eventually cancelled in 1991), while equipment ordered from the United States in 1977 would not be fully delivered until 1984. Rather than wait, the Jefatura de Transmisiones assembled a provisional system from equipment already in stock, standardised the layout of signal centres across the army, and mounted the resulting stations on cross-country vehicles — Land Rover 109s at first, later shelters, BMR and TOA armoured vehicles. The stations were named after gods: Hermes, Minerva, Centauro, Tritón, Plutón, Ceres and Mercurio. Intended as a stopgap, OLIMPO stayed in service for roughly two decades.

The Mercurio was the pure radio station of the set, issued to battalion command posts and to division and brigade signal centres. Two fits existed. Type A carried a 100 W RACAL Syncal HF set covering 1.66-29.999 MHz, two 30 W AN/GRC-160/30 VHF radios (30-75.95 MHz), a Marconi AN/GRA-39 VHF remote-control unit and a teleprinter. Type B replaced the HF set with a 400 W ELMER SRT-470 and carried a single VHF radio, the same remote-control unit and a Siemens T-1000 teleprinter; by the mid-1990s all Mercurios ran the ELMER. Power came from a 3 kW generator giving 220 V AC and 24 V DC plus supplementary vehicle batteries, and the crew was three — a station commander (sergeant or corporal first class), an operator's assistant and a driver-generator operator. The HF set worked the RATT radio-teletype nets for logistics and operations traffic; the VHF set handled voice on the command net, the VHF logistics net and the NBC alert net, reaching about 5 km on low power, 20 km on high power, or working remotely up to 3 km away over CBO field cable. Unusually among the OLIMPO stations, the Mercurio could operate on the move. Restored examples survive in private hands; one advertised in 2025 had been refurbished by the Spanish Army and carried a RACAL MA-445/MA-931 HF installation with a BCC 540B matching unit, a PRC-25/PRC-77 VHF rack, VIC-1 type intercom, Siemens teleprinter and TP-6N field telephone.

Imagery

A Spanish Army Santana Land Rover in service green. This is a short-wheelbase 88 Ligero, not the 109 Mercurio signals vehicle — no freely licensed photograph of a Mercurio was found — but it shows the Santana military bodywork, grille badge and paint of the same fleet
A Spanish Army Santana Land Rover in service green. This is a short-wheelbase 88 Ligero, not the 109 Mercurio signals vehicle — no freely licensed photograph of a Mercurio was found — but it shows the Santana military bodywork, grille badge and paint of the same fleet Outisnn · CC BY-SA 3.0 ↗

Registry record

Manufacturer
Santana Motor S.A., Linares (Jaén), Spain (Land Rover 109 ETRS base vehicle)
Manufactured
Santana 109 base vehicles of the 1970s-80s; Mercurio radio fit issued from 1980
Modifier / coachbuilder
Spanish Army Jefatura de Transmisiones (Programa OLIMPO signals installation)
Engine type
2,286 cc Santana inline-four (2.25-litre petrol or diesel)
Country of origin
Spain
Status
withdrawn from service; a small number preserved, some restored by the Spanish Army before disposal

Catalogue data

Record kind
Named model
Model line
Santana
Wheels
4

Base catalogue fields are exported from the Difflocked game. In-game physics values are arcade tuning, not certified historical measurements, and are deliberately not shown as specifications here.

Sources & citations

Researched sources

Catalogue references

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Registry record updated 2026-09-10T02:08:52.205Z · status: researched