Author Archives: Hugh Golding

Tower PAA10 – Bedford

This originally caught my interest because it all looked wonky. After posting on Twitter it was highlighted as a phase transposition by @DiverTomJG

“The majority of double CCT lines are transposed by having different phasing on each CCT. Line transpositions are only really seen on the original 1930’s 132kV grid lines which were predominantly long distance single CCT.” @DiverTomJG

“This DC tower was built at a later date and is an addition to the original line. I would guess its addition was to increase the ground clearance to allow them to build the housing estate below.” @DiverTomJG

Tower POA143 – Great Denholm

This tower caught my eye because of the attachments. After posting on Twitter the attachments were identified as Optical Attached Cables (OPAC) by @Neil_Hardiman

I later stopped at Cut Throat Lane Switching Station, Bedford, on way home from work where you can see the OPACs terminating.

Incorporation of Optical Attached Cable and Conductors Carrying Optical Fibres into the Existing Overhead Line Network: Design and Construction

Installation of Fibre Optic Cable(s) on Steel Tower 132kV Circuits (including Fibre Wrap Method)

War Driving

I have been using the Wigle Android app for a while now but wanted to build a Kali/Raspberry/Kismet device. I have a spare Raspberry Pi3B and GPS unit so just needed a battery pack and some USB WiFi dongles.

First attempts were recorded to USB memory stick but later replaced by configuring the device as an access point and using SSL to login and retrieve files.

Flight Cases

I have replaced and combined the Radio Cabinet and the Radio Bag with flight cases.

The cabinet took up a lot of space and was near impossible to move around due to weight. I can now divide the equipment, and weight, up into several flight cases. Change is frequent and its now a lot easier to move the cases around and modify the configurations etc.

The current three sections are Mesh, Radio and Network. “Mesh” at the top has the AREDN Node and the Raspberry Pi Servers and the Mesh Mikrotik Router. “Radio” in the middle has the SIMOCO radios and the Yeasu FT-857D. “Network” at the bottom has the Main Mikrotik Router, the Dev Servers and the switches.


I needed a go box of mesh stuffs that could be deployed quickly and contain some PIs, an access point and an AREDN node.

I am quite fond of the Really Useful Box series and have a number of them with project parts and tools in etc. So I choose a 9L box to try and fit some bits in.

Grass Area 1/2 mile from Fenny Exchange / Bletchley (MK) bRAS near Bletchley Tesco roundabout.

A number of fibre cables from the Exchange and bRAS start to run North from this small grass area just down the road towards the Centre MK and SMBA Bradwell Abbey Exchange.

A fibre cable running to the Bank of England runs under one of these network chamber covers using dark fibre provided by Zayo (formerly Geo). 186k was taken over by Geo Networks and further by Zayo, so it’s most likely under those 186k covers.

MK Data Vault Survey Document

A house that isn’t a house.

Cable landing stations come in various forms. Mainly industrial buildings but here is one on a housing estate hidden inside two houses. The inner walls and floors have been removed to house the fibre terminating equipment. The four large air con units outside give it away. The garage houses the backup generator.

Proposed Equipment Building Plan

Proposed Equipment Building Plan