DJ0WH

Christmas Presents

Thursday, December 13, 2012

On the beach, at a festival or just a keen adventurer enjoying a day out, the Motorola range of licence free PMR446 radios are a great way...

Redundant Repeater Setup

Wednesday, December 12, 2012

By using the Major Alarm output and FCC Type 2 Monitor input together, it is possible to setup redundant repeaters - so that if the main r...

MOTOTRBO IP Networking Requirements

Wednesday, December 12, 2012

MOTOTRBO utilises a proxy discovery mechanism to learn about the network. All Peers (Repeaters, RDAC, 3rd Party Applications) initially com...

Looking at the DR3000

Monday, December 10, 2012

On the front, there are eight indicator LEDs: these show that the repeater is powered up; whether it is disabled; operating in analogue ...

RF test connection on the DP2000 series

Thursday, December 06, 2012

Like the DP4000 series, the antenna connector on the DP2000 is only used for the antenna and cannot be used for testing purposes. A RF conne...

RF test connection on the DP4000 series.

Tuesday, December 04, 2012

***Addendum 15.03.18*** If you haven’t purchased a DP4000e series radio yet and plan to use an external antenna, you should rather purchas...

DCDM

Monday, December 03, 2012

Dual Capacity Direct Mode is a feature available in all second generation MOTOTRBO radios which allows two slot operation on simplex. N...

Batteries

Tuesday, November 20, 2012

Motorola Original rechargable batteries can provide years of reliable service, if you observe some simple rules regarding their use. New...

The DP4000 series just got a lot safer (and a little bluer)

Monday, November 19, 2012

This week, Motorola Solutions introduced the DP4401 and DP4801 ATEX MOTOTRBO portable radios. These radios provide high quality communica...

Voice Announcement Files

Tuesday, November 13, 2012

The Voice Announcement feature in the second generation MOTOTRBO radios allows the user to hear pre-recorded voice announcements whenever t...

Insufficient RF filtering “strikes again”

Tuesday, November 13, 2012

Earlier this year, I had a look at a Capacity Plus system where the customer was complaining of the system being permanently busy. After a f...

Welcome Image

Friday, November 02, 2012

The current (2nd) generation MOTOTRBO radios, all have the ability to display a welcome image when powering on. There are specific require...

Motorola Mitrek Mobile Radio

Friday, October 26, 2012

I am proud to say, that a fair amount of what I know about superhetrodyne receivers; squelch circuits; frequency multipliers and VHF power a...

Linked Capacity Plus Example Router Configurations

Friday, October 26, 2012

***Update 01.05.18*** There's been a few spam comments on this post and some commentators were advertising companies involved in techn...

MOTOTRBO and IP

Thursday, October 25, 2012

This post, as well as other posts on the above topic, have been converted into a document. This link will take you there .

Eight or thirty-two?

Tuesday, October 23, 2012

Does your DR3000 have 8Mb or 32Mb memory? The only (correct) way to tell, is to look at the back of the repeater. One of the la...

Linked Capacity Plus Example Codeplugs

Thursday, October 18, 2012

The codeplugs from the MOTOTRBO Technical Day in Nigeria can be downloaded here . I will be sharing the Router configurations later. In...

MOTOTRBO GPS in a nutshell

Wednesday, October 17, 2012

Radios with model names ending with a 1 (e.g. DP3601 or DM4401) have an integrated GPS receiver. This receiver is purely a reporting tool (...

Help, my PC doesn't see my MOTOTRBO radio!

Monday, September 24, 2012

"Help, my PC doesn't see my MOTOTRBO radio!". For quite some time, this was the urgent plea one would hear from technicians i...