Please note the legal maximum power of any PMR radio is 500mw as such this modification is for testing only, and will only transmit at the full 5W when the boost PTT button is pressed.

The modified version gives 5W of power when the boost button is pressed (under the PTT button) and provides 500mw when the PTT is used.

The same applies to both PMR and the LDP Band as the unit (once modded) is dual band.

Aerial is about 12cm long fixed. Feels very rugged, all the parts are sealed with a rubber grommet.

Takes 4 AA batteries (1800mah GP Batteries are included), the desktop charger is included. But as it a continuous charger is pretty pointless unless you want to kill you batteries. I use 2500mah batteries and charge them with a Maha MHC9000 charger which i use for my camera batteries and flash batteries.

A belt clip is included as well. Has lots of functions, half of which i wont use! I have the manuals and circuit diagrams etc as PDF files, please request these via PM.

OK the mod, i take no responsibility for this especially if the UK and EURO PCB’s are different (unlikely) My radios were bought done from the Netherlands.

You need to un screw the 5 screws that hold the back down,
Watch out for the battery clip as the pin will fall out.
Watch out for the battery wires they are short and connect to the back so be careful when removing the back. You can see how well the unit is now, as the seal runs around the top half of the case and clips under the aerial.

OK heres the mod,

P1 Closed
P2 Closed
P3 Open

You need a small hot soldering iron and a steady hand!

If you have any questions please let me know, or need the manual or wiring diagram etc, if you have a specific question please ask.

The new isatphonepro is set to send other networks spinning with its cheap handset and superb call cost options.

Its clear how far Inmarsat have gone in designing this handsets to ensure it meets the needs of its customers.

This short video demonstrates just how far they went when testing it.

Click here to see the Tough Phone! tested

So far they have spent a month in Sri Lanka, outstaying there Visa’s and being fined at the airport, heck they would lock them up, anyone asking what they were doing would let them off thinking they were mad anyway!

Travelling from Sri Lanka, the went onto Kathmandu in Nepal, a country they are both familiar with both east and west. From here they set out to walk to Everest Base Camp on the Nepalese side, a staggering 22 day trek from Jiri, this trip is avoided by people half there age. As they are far from traditional British grannies, they chose to avoid knitting and stuck purely to being experts on remote travel and living rough(ish) Reaching Everest Base Camp with a breeze, but not the weather! They returned to Kathmandu.

Where now?! Well of course into Tibet and the North Everest Base Camp, somewhat easier as you can drive there, but for anyone not acclimatised this is a really headache maker and a sure way to get altitude sickness, but again apart from the many Chinese check points they arrived at the northern base camp in good time.

From here they have meandered there way to Lhasa, with its old walled city and the former home of the exiled Dalai Lama. However much has changed in Lhasa after catching up with them via satellite phone it was clear that the Chinese army control the city and the population, secret police etc.

Now they are on there way north, tracking them via a GPS tracker they have with them, there route so far from Nepal can be seen here