Source: https://tendernation.io/opportunities/01a13cf2-ae8f-72a0-a261-ed5bda00c455/gb-stockbridge-ukri-3547-supply-of-a-x-band-cassegrain-feed-tower-frequency-s awarded GB open procedure # GB-Stockbridge: UKRI-3547 Supply of a X-band Cassegrain Feed Tower & Frequency Selective Sub-Reflector for Chilbolton Observatory [UK Research & Innovation](https://tendernation.io/buyers/uk-research-innovation) Estimated value £588,333 Published 15 Feb 2024 Deadline Closed 2 Feb 2024 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender The Chilbolton observatory operates a 25m diameter, prime focus, parabolic reflector antenna with an F/d ratio of 0.36. The antenna was commissioned in 1967 and has for many years been used with an S-band radar fed from the prime focus point. The main feed is undergoing an upgrade to implement monopulse tracking. At the same time the observatory would like to add a wide band X-band radar to the antenna for simultaneous operation with the S-band radar. The intention is to use the S-band radar for tracking and ranging of satellites while the wide bandwidth X-band radar is used for imaging. The antenna was commissioned in 1967 and there are no CAD drawings for the structure. Contractors may wish to visit the site to conduct a survey of the structure and check mounting points, access to the backing structure etc that will become important in the design, installation and alignment of the feed tower and the sub-reflector. It is not thought possible to integrate an X-band feed with the S-band monopulse feed at prime focus. The solution proposed is one used in satellite communications ground stations of having the S-band feed at the prime focus of the reflector and the X-band feed in a tower mounted in the centre of the dish forming a cassegrain arrangement with a frequency selective sub reflector. ## CPV classification Parts of radio and radar equipment Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/c907edfa-356d-42e6-8c55-7ab043353e1d) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile UK Research & Innovation: past awards and live tenders](https://tendernation.io/buyers/uk-research-innovation) [Sector More Telecoms & broadcasting equipment tenders](https://tendernation.io/sectors/telecoms-broadcasting-equipment) ## More tenders like this [Multimedia equipment – Erstausstattung Medientechnik CPS Dresden - PR1287546-9940 · Fraunhofer-Gesellschaft - Einkauf B12 · 29 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-7aee-70da-aebb-7f21e636a57c/germany-multimedia-equipment-erstausstattung-medientechnik-cps-dresden-pr1) [Fibre-optic materials – Fourniture d’émetteurs-récepteurs optiques (SFP Transceivers) utilisés dans le projet KM3NeT · CNRS Délégation Provence et Corse · 34 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-8083-708b-85a8-a2e4827bf193/france-fibre-optic-materials-fourniture-demetteurs-recepteurs-optiques-sfp) [Network equipment – Zajištění konektivity školy – Základní škola a Mateřská škola Krupka, Teplická 400 – opakovaná VZ · Základní škola a Mateřská škola Krupka, Teplická 400 · 30 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a156a9-617c-7058-b1a7-e3cbeed9790b/czechia-network-equipment-zajisteni-konektivity-skoly-zakladni-skola-a-mat) [Audio-visual equipment – Veranstaltungs- / Medientechnik · Kreis Steinburg · 34 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-6e64-7187-9c5b-e2105b0716d0/germany-audio-visual-equipment-veranstaltungs-medientechnik) [Network equipment – 2026-155 Subministrament d’equipament de seguretat perimetral i serveis per protegir els elements de TI hostatjats als centres de procés de dades (CPD) i equipament IOT de l’Hospital Clínic de Barcelona. · Consorci Hospital Clínic de Barcelona (HCB) · 28 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a156a9-7f20-737a-8dc6-0789e9e53c73/spain-network-equipment-2026-155-subministrament-dequipament-de-seguretat-p) [Communications equipment – Supports de communication visuelle et événementielle pour le département de la Seine-Maritime · Département de la Seine-Maritime · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a156a9-8145-726e-bfcd-35d0d93bde45/france-communications-equipment-supports-de-communication-visuelle-et-evenem)