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Vertical Markets

 

​Ridmar has over 30 years experience in successful delivery of specify, design, build, commission and hand-over projects

 

  • police, fire, and ambulance emergency services

  • taxi dispatch

  • road tunnel communications

  • train communications

  • mining

  • wide area trunked radio operators

St John Ambulance WA
LendLease
Graham Farmer Tunnel

  • Design and implement 13 site microwave backbone system to support ambulance voice radio and data mobile radio with tribs supporting 4wire E/M and IP data packets

  • Design of P25 voice system, conventional with mobile and base receiver voting

  • Devise frequency plan for three P25 networks comprising 33 base stations, including staged migration plan from analog to P25

  • Develop design to extend P25 Ambulance radio into the Graham Farmer tunnel

St John Ambulance WA

Ridmar upgraded all radio equipment in the Graham Farmer Tunnel RRB including leaky feeders, AM and FM broadcast and emergency services.

 

Services included

  • design and construct of a future proofed fully managed solution for the Main Roads Department of WA

  • provision for DAB rebroadcast in the future

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OZ Minerals
Ankata Minesite

Ridmar was engaged as RF experts to guide and advise on underground tunnel radio communications, including

  • interference analysis

  • filtering design

  • analysis of noise figure and ROIP performance of in-tunnel BDAs

  • optimised Motorola IP siteconnect configuration

  • increased system capacity

Downer Group
Perth City Link

Perth City Link, formerly known as the Northbridge Link, is a collaborative project funded by three tiers of Governmentand led by the Metropolitan Redevelopment Authority and the Public Transport Authority.

Ridmar constructed the rail and emergency services radio rebroadcast solution, as a subcontractor to Downer Group.

  • analogue and digital (P25) rebroadcast

  • radiating cable systems for tunnels and walkways

BHP Billiton Olympic Dam

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Ridmar assisted in the upgrade to the surface radio (TETRA)

 

  • resolution of system installation issues

  • redesign of site frequency plan

  • radio interference resolution

Motorola Solutions
SAGRN

Ridmar provided transmitter combiner designs and field re-tuning services for the SA Government Radio Network P25 radio upgrade, at over 50 sites across South Australia.

 

  • specialist advice and services where multiple clients shared the same antenna systems

  • expert RF filtering and interference services

  • management of radio sites with multiple co-located transceivers

VicTrack rail yards
VicTrack
Rail Yards

Broad ranging consultancy to advise on radio matters relating to ACMA band plan changes.

 

  • multicoupler designs for the Region Rail Link

  • frequency planning

  • interference analysis

  • design and construct of new 8 channel radio system for Melbourne Yards

  • microwave path designs

  • radio coverage predictions

VicTrack rail yards
Taxis Combined
Taxis Combined

Ridmar has contracted with Cabcharge Aust, Taxis Combined (Sydney), Black Cabs Melbourne, Yellow Cabs Adelaide as a consulting engineer for all radio and related taxi despatch matters including

 

  • Radio System Engineering for the MT Data taxi job despatch system upgrades in Newcastle, Melbourne, Adelaide and Sydney

  • Specialist services

    • RF combining

    • Radio Coverage predictions

    • Layer 2 and 3 IP designs

    • IP-serial servers to suit RS232 line protocols

    • Voice Radio on IP (ROIP)

    • Single channel serial data links

    • Class licence 5.4 GHz IP radio links

    • Integration of Cabcharge radio system IP traffic into managed services from Metwide, Vertel and Telstra

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Cabcharge Australia
 
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