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Technical Forum

06 Jan 09

This post is a forum for technical discussions relating to telecommunciation equipment, techniques, and, technology. Happy blogging….


  1. allanh May 25, 2009 at 10:36 pm

    About to try some Global Roaming using my mobile phone from Europe.
    As far as call charges go I understand every call I make say in Germany to say France or even locally in Germany will cost me an international call charge from Australia to the destination country. Or is it double ie originating country to Australia and Australia to destination country using Australian mobile providers Standard call rates to a home phone and the cost to a mobile phone
    Don’t expect to have network access issues as the phone is tri-band and understand Exetel use Vodaphone network .

  2. Chris Bull September 14, 2009 at 8:45 pm

    Sorry for the tardy response, I guess you are back home now. It seems our Editor must have missed your comment and failed to approve your listing.

    As I understand it a post-paid mobile subscriber roaming overseas pays for the convenience of receiving calls whilst traveling and will be charged for those incoming calls at the normal international call rate from his home country to the foreign international network.

    That same subscriber will be charged at the local network rate for calls to his home network or another country. I think that’s how it works.

  3. JohnPhillips March 22, 2010 at 11:03 am

    I need some advice on establishing a small CB network on Cocos (Keeling) Islands (CKI). My daughter is opening up CKI for kitsurfing tourism ( check out her website at for some great pictures) and needs to set up her own mobile communications network as the existing mobile facilities are full ( and expensive).

    She operates out of a small structure at Kite Beach 4km south of the Settlement on West Island and that is where her main base station will be. Power is 24v solar.

    Another fixed station will be at her staff house in the Settlement (mains power), with two more stations on her two Toyota Troopies which she uses for guest transport. She already has two cheap hand held mobiles which she bought off eBay a couple of years ago. These were for communication with her rescue boat (still required!)

    For those of you who have not been there, CKI is a typical coral attol with a string of islands (one big one has the airstrip) around a lagoon some 7km accross and faily shallow over much of its area. It is very flat, with the hihest feature only some metres above sea level. Almost all of the land is covered with palm trees. Radio transmission is therefore very good. I beleive there is a CB radio repeater on Home Island (across the lagoon from West Island.

    My daughter is operating her business on the smell of an oily rag and needs to know what to buy to create the most inexpensive network that will meet her needs. That includes looking on ebay and for second hand equipment – but maybe new stuff is best?. She therefore needs to know details like what size of antennas needed for each transmitter; what power for each unit etc..

    If anyone would like to reactivate their grey matter and give us some advice we would be very grateful. Either through this blog or by contacting me on or by mobile 041983085

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