Unofficial UHF CB System

PLEASE NOTE: FOR INFORMATION ONLY - MODIFICATIONS ARE MADE ENTIRELY AT YOUR OWN RISK

DELBOY ENTERPRISES DOES NOT RECOMMEND OR ENCOURAGE  THE MODIFICATION OF PMR446 RADIOS

MODIFIED RADIOS CAN ONLY BE USED BY LICENCED RADIO OPERATORS

 

First Look - Maxon S1 PMR446 Radio

 

Maxon S1 Review

(Power Modification Below)


Fast becoming popular across Europe is the Unofficial UHF CB System. Working on PMR446 frequencies, but with 4 watts of output power, several handsets are now available for use. One such handset is the Intek MT-5050.

The Intek MT-5050 is a feature packed PMR446 handheld which can easily be modified to give you a full 4 watts of output power and the option of a large range of channels. What's more this modification can be made without the need for data leads and computer software. All you need to do is remove the batteries, then locate and remove the little sticker which reveals 3 wire jumpers.

See my review of the Intek MT-5050 HERE.

The radio is supplied as a standard 8 channel 500mw PMR446 radio.

If you only want the higher output power, keeping the standard 8 channels, you only need to cut the link marked 'C'.

Cutting ALL the links will enable 4 watts output power, and additional channels.

Click HERE to download a list of the available channels.

The range achieved between two of these handsets can be as much as 20 miles. Some users have also removed the standard antenna and replaced it with an SMA or BNC connector to enable connection to an external antenna.


Intek DRS-5070

Another such radio is the Intek DRS-5070, a home base/desktop version of the MT-5050:

Again the radio is supplied as a standard 500mw PMR446 radio, but can easily be expanded to cover the same frequencies as the MT-5050 with 4 watts output power.

The radio is supplied with a power supply/charger and can be used as a desktop unit or can be wall mounted.

This radio also comes with a longer more efficient antenna which can be removed and replaced with a BNC connector allowing the radio to be connected to an external antenna.

See my review: HERE

Intek DRS-5070 Modification:

 

The modification on the DRS-5070 is the same as the MT-5050. Remove the battery cover and batteries and you will see the "Service Only - Do Not Open" sticker. Simply remove this sticker and you will again find the 3 wires.

Cut all 3 wires for the full modification which gives you the expanded frequencies and the full 4 watts output power.

Click HERE to download a list of the available channels.


Maxon S1 Power Modification - (Review: Click HERE)

The Maxon S1 can be modified to give 5 watts output power. The modification involves removing a tiny link off the main board. This is a simple procedure in itself but the problem is that to get to the link you have to remove a metal screen which is very well attached to the main board. A high power soldering iron is required for this job and quite frankly it's not for the faint hearted!

Click on the images below to enlarge:


So to sum up, these little radios allow users to have their very own Unofficial UHF CB system which gives reliable, clear communication over a reasonable distance. There's no wonder they are selling like hot cakes across Europe.


These radios are available from the Thunderpole website:

Intek MT-5050: http://www.thunderpole.co.uk/intek-mt5050.html

Intek DRS-5070: http://www.thunderpole.co.uk/intek-drs-5070.html

Maxon S1: http://www.thunderpole.co.uk/maxon-s1.html

However, Thunderpole WILL NOT  modify the radios and any modifications made will render the warranty void.

You may also wish to look at this antenna which is ideal for use on 70cms/PMR446: http://www.thunderpole.co.uk/ma1300.htm


<<< The Unofficial UHF CB Band Frequency List


Videos From Simon The Wizard:

 

 

 

Delboys Home Page


GoStats web counter
GoStats web counter

Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews * Delboy: Amateur, CB, PMR446, Radio Forum, Modifications, Users List, Reviews *