• Iridium Edge

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    Iridium Edge can send and receive short messages from anywhere
    on Earth with a view of the sky.

    Combined with our flexible data packages and RockBLOCK IoT platform
    you can connect your remote systems seamlessly

About Iridium Edge

The Iridium Edge allows you to send and receive short messages from anywhere on Earth with a clear view of the sky. It works far beyond the reach of WiFi and GSM networks. Maybe you want to transmit weather information from mid-ocean? Or use it to get telemetry back from an oil well? Perhaps you need to communicate in an emergency, when other networks might not be available? We can help you.

Iridium Edge has a built-in power regulator and can accept between 9-30v DC. At the heart of the unit is an Iridium 9603 modem. The Iridium Edge hosts the 9603 and provides it with an antenna, and its power supply requirements. It exposes the modem’s serial interface via RS-232.

RockBLOCK+ versus Iridium Edge

Our RockBLOCK+ product is very similar to the Iridium Edge. There are some key differences though, which may guide your choice, and these are illustrated in the table below.

Regardless whether you choose the Iridium Edge or our RockBLOCK+ unit, both come with access to our 'Core' management system, allowing you to receive data via HTTP POST, easily see message traffic and diagnose issues, and manage your airtime usage quickly and easily online.

Product Details

RockBLOCK+ Iridium Edge
Powered By 3m 9-30v DC input 20cm 9-30v DC input
Built in Antenna Yes Yes
Transmits Using Iridium Iridium
Weight 300 grams 320 grams
Size 4cm high, 13cm diameter (+cable) 3cm high, 13cm long, 8cm wide (+cable)
Waterproofing IP68 certified (submersible up to 5m indefnitely) IP67 certified (submersible up to 1m for 30 minutes)
Ideal For External use External use
Cable Options Side exit with either tails, DE9 or USB, 3m-15m cable Bottom/side exit with M12 8-pin male, 20cm cable
Pricing from £209.00 from £249.00

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Running Costs

Line rental is paid in blocks of 1 month, and allows the Iridium Edge to exchange information with the Iridium satellite network. You only pay for months in which you wish to use the Iridium Edge. No annual contract is required. Line rental costs £12.00 per month and includes access to The CORE management system for managing your devices.

Credits are used each time you transmit. 1 credit is used per 50 bytes (or part thereof) of message sent or received. 1 credit is also used if you check your mailbox and there are no messages waiting (A mailbox check). Credits do not expire unless you do not use your account at all for 12 months. Credits are shared/pooled between all of the devices on your account

Please note, whilst our pay-as-you-go tariffs offer great flexibility for development purposes, we know they are not suitable for everyone. If you are planning a large deployment of devices (100+) and are willing to commit to airtime contracts of 12 months or more, please get in touch. We have access to various tariffs which may suit you better.

Bundle per Credit Bundle Price
50 Credits £0.14 £7.00
100 Credits £0.13 £13.00
200 Credits £0.11 £22.00
500 Credits £0.10 £50.00
1000 Credits £0.09 £90.00
2000 Credits £0.08 £160.00
5000 Credits £0.07 £350.00
10000 Credits £0.06 £600.00
20000 Credits £0.045 £900.00

About Iridium

Iridium is the only satellite network that allows transmission of information from any point on Earth – other networks have no coverage in the polar regions, and have intermittent or no coverage in other marine and land areas.

Iridium has 66 satellites in orbit around the Earth, allowing coverage anywhere on Earth 24 hours a day, 7 days a week. No other satellite network has truly global coverage. Messages sent via Iridium take just seconds to reach you, via e-mail or directly to your web-service.

How to control the sleep pin

The sleep signal is internally pulled high on the RockBLOCK and RocKBLOCK+ products, so you can leave it disconnected if you want to leave the modem 'awake' all of the time.

To turn 'off' the modem, pull the line to ground.

Unit refuses to give me data using the SBDRT command

If you are using the SBDRT command, and the modem appears to 'hang' when you issue the command, it is probably due to flow control configuration. The default state for the RockBLOCK and RockBLOCK+ units has flow control turned ON in the modem. When running in 3-wire serial mode, flow control should be turned OFF, which will ensure you get responses to your requests.

Use the command AT&K0 at the start of your command sequence. This turns flow control off, and should solve the problem.

Related Case Studies

    High Altitude Rocket - The Register

    RockBlock was used as a command and control module, to enable the ground team to send commands to the high altitude rocket when out of GSM coverage

  • Kraken
    Ocean Drifter Buoy

    The pupils at Sutton Grammar School made an ocean drifter to to measure wave parameters and currents. RockBLOCK sends the data back from the middle of the ocean.

  • High Altitude Balloon
    with Arduino and GPS

    Andrew Ashe together with Mikal Hart (author of the fantastic IridiumSBD library for Arduino) has successfully tracked a balloon, and been able to recover its payload thanks to RockBLOCK.