Question about Motorola Talkabout T5720 (7 Channels) 2-Way Radio

2 Answers

Send data over T5720 ?

I use a T5720. How can I use it to send data over it ? thanks Arshad

Posted by on

2 Answers

Re: Send data over T5720 ?

Create your own protocol .. try to see how wide is the channel and then try some solution like sending pulses in morse code whith location .. or translate nmea protocol into pulses .. the thing is u will need some kind of device made speciaally for your need's .. I don't known if it's possible to send data whith an old modem 33 kbps or less .. it depend's on the bandwith of the channel but that's an other option ...but it'll hace to be half duplex and the talk/no talk action will be hard yto implement .... a verry simple option is ..... a code at the beggining .. s eries of pulses separated in thime so that the machiine knowns the truck is triing to communicate .. and then send each numbres of the lat and long. in pulses ...a specific time .. it's slow and noise sensitive but it's something ...

Posted on Jun 21, 2007

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 123 Answers
Re: Send data over T5720 ?

Those radios were not designed to transmit data, and has no any port for it.

Posted on Jun 18, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

We have two talkabout t5720, both set on same channel. One seems to send, while the other does not. we haven't used them before-is there a simple solution? Thanks

Yes. The solution should be simple. The radios are possibly not set to the same interference eliminator code and/or Qt filter setting. Here is a link to the user guide:
You will find the programming instructions begin on page 21.

The frequency, code and Qt filter must be set identically on both radios. For simple basic operation set the code and Qt filter to zero (off).

Best regards.

Mar 14, 2011 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Motorola TLKR T3 communication problem

svp dite moi comment les refaire marcher car il y en a un qui recoit tout et l'autre rien du tou svp aider moi

Oct 04, 2009 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

I have a TLKR-T3 and a T5720 radios. can they communicate? Thanks

No, they have no frequencies in common. The TLKR-T3 uses the PMR446 frequencies common in Europe. The T5720 uses FRS freqeuncies common in the USA.

Dec 19, 2008 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

RPL & TPL tones used in T-5720

The T5720 user manual does not list the TPL codes possible in the radio. However, they are the standard list, with zero being "open squelch" (no code). Here is a link to a Motorola manual which has a list of the PL codes in order on page 43.

On the T5720, another item to what for is the Qt noise filter. Be certain to set it to zero unless using the T5720 with others of the same model. It can also block transmissions. Here is a link to a user manual for the T5720

Sep 22, 2008 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Talkabout T5720 Frequencies

Hello Ruaal,

The frequencies in the TalkAbout T5720 are not adjustable. The radio operates on the designated Family Radio Service channels located at 462 and 467 MHz. There is no way to change these channels to be at 463 and 464 MHz.

Best regards,
Go Ahead. Use Us.

May 14, 2008 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

About motorola t5720

Hello, Thanks for requst me, As far as I understood, you have same settings in both radios, you mentined QT this is the 3° requirment to recive a signal, 1° channel, 2° subchannel (ctcss, pl, etc) and the 3° QT.
if you are using QT you must to send a Call from the other radio, I recomed to set the QT to Off in both radios and tray if you can communicate in both directions.
if does not receive, there is the possibility that one of your radios the Sub channel decoder is not working.
If you could test your radios with a Third radio to know wich radio is not working right.
Good luck

Apr 28, 2008 | Motorola Talkabout T5720 (7 Channels)...

2 Answers

Comms problem between motorola t5522 and t5720

Are you sure both radios has the same Squelch Code and QT?

Jul 07, 2007 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Pin out for t5720

the Plug is a 2.5 mmm the tip is mic, middle speaker, the end is gnd.

Jun 19, 2007 | Motorola Talkabout T5720 (7 Channels)...

2 Answers

How to open the T5720?

for 5720 - open two screws below battery compartment. and two screws are under the front false faceplate. Pull out the face plate (from the top) and unscrew the two screws above the display. walla you have it dismanteled ! Arshad

Aug 19, 2006 | Motorola Talkabout T5720 (7 Channels)...

Not finding what you are looking for?
Motorola Talkabout T5720 (7 Channels) 2-Way Radio Logo

Related Topics:

72 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorola Two-Way Radios Experts


Level 3 Expert

1640 Answers


Level 3 Expert

3018 Answers

bill tarkulich

Level 1 Expert

31 Answers

Are you a Motorola Two-Way Radio Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides