Wireless and wired


 * DsLam, DirectBuriedDuct
 * HorizontalDirectionaldrilling, MicroDuct
 * TrenchingEquipment
 * TelephoneNetworkBuilders ,VibratoryPlow, OutsidePlant
 * CableJettingAndPipes

Wireless Communications
https://www.dataweek.co.za/home.aspx
 * LoraWan Long range 20km communication over license free bands.
 * MeshNetworking documenting http://www.locustworld.com/
 * GpsAndGprs,
 * RadioModems, Category Radio modems
 * WiMax, WimaxLinks, FpGa , TexasInst , FreescaleDsp
 * SoftwareDefinedRadio (SDR, rtlsdr) http://www.rtl-sdr.com/
 * WiMax