FAQ

First things first.

The postings on this site are my own and do not necessarily represent the positions, strategies, or opinions of my employer, Motorola Solutions.

If you work for Motorola Solutions, please have a look at this.

I do not get paid for this. I do not run adverts. I will never ask you for money. This is my private project and I do this in my free time for the benefit of Motorola customers everywhere. I do not get told what to write, though I do use comments and my job to get ideas on what to write about.

All that you read here is based on my own experience and does not in any way constitute Motorola Engineering recommendations. If you choose to follow my advice, you do so at your own risk.

Where can I buy a radio/system/accessory/part/software?

See my WHERE TO BUY page.

What is MOTOTRBO?

I have a technical question and could not find the answer in one of your posts?

Please leave a comment on the post which matches your question the best, or even at the bottom of this page. Some of the comments are used as a basis for future post topics.

Where can I get CPS for my radio?

Contact the company who sold you your radio(s) and/or system. Otherwise contact a Motorola Channel Partner near you.

Where can I find the service manual for my radio?

Contact the company who sold you your radio(s) and/or system. Otherwise contact a Motorola Channel Partner near you. You should also be aware of this.

Where can I download CPS (etc.)?

If you work for a Motorola Solutions Channel Partner, from Motorola Online. If you are an end customer or radio amateur, you need to contact the company who sold you your radio, or you could contact a Motorola Partner via this link. I cannot give you software, this is not allowed.

I have a problem with my radio system, can you help me?

No. Please check here on how and where to get technical support otherwise ask a question below or on one of my posts so others can read and learn.

I work for a Motorola Channel Partner, how can I get your assistance?

It depends on which part of the world you are in so please ask your Motorola Channel Account Manager.

You refer to EMEA models, I am in another region, what is my equivalent?

Please have a look at this model equivalent table to find regional equivalents.

How do I get my radio repaired?

Have a look at my support page. Motorola Solutions operates several repair centers throughout the world, visit their website for more details.

Anything else, please post your questions below in the comments.

146 comments:

  1. hi sir wyne, is the transmission of my mototrbo system would be okay if i have 2 repeaters with same frequency but different color code? my system will be in ip site connect mode.

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    Replies
    1. Yes but only if the coverage of repeater and and repeater 2 are different. If there is any overlap in coverage, there will be interference no matter the colour code.

      Delete
  2. Already almost welcome I placed everything from your film but I have a problem how is sending from the manual radio icom this gm360 isn't taking the floor what can be bad done?

    ReplyDelete
    Replies
    1. If you are using CCIR, there might be an issue in the Icom radio. I'm told that some of their models do not encode CCIR correctly. Do you have a (or do you know someone who does) Communications Analyzer? Then it might be worthwhile seeing what the radio is actually sending out and programming the GM360 according to that.

      Other than that, all I can suggest is that you make contact with a local Motorola Partner (see Links>>Getting Support above). They will be able to help you and have access to Motorola support if needed.

      Delete
  3. hii friend.. iam have 3 repeaters . 2 repeaters The same frequency And the third Different In terms of Frequency . This repeaters Divided into three residential areas . The distance between provinces 160 km
    My question is How do you link Three repeaters Together by Internet .. thx

    ReplyDelete
    Replies
    1. Your question is too broad to answer here. Without a complete understanding of your requirements, my guess would be that IP Site Connect would be the best choice. You'll find some posts on this Blog and videos on my YouTube channel on this topic.

      Delete
  4. Hello Mr. Wayne Holmes,

    Can I use portable radio as a control station for both voice and data? In this case, What cable type should I choose in the CPS of the radio?


    Thanks,

    ReplyDelete
  5. You can use a portable as a control station. The cable type should be left as standard (I don't have the CPS here and can't remember the selection name).

    ReplyDelete
  6. Hi, is there a way for interconnecting SLR5500 repeaters and Cisco CUCM?

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    Replies
    1. Yes there is but this requires an application like SmartPTT Plus to act as an intermediary between the MOTOTRBO radio cloud and the SIP (Cisco call manager) cloud.

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    2. Thanks Wayne. I will have a look to SmartPTT Telephone Interconnect Gateway which seems exactly what we need

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  7. Hi i have three mtr3000 and three a-msr20-20 and of course three internet connections in bridge mode.
    i believe i have configured all correctly but still cant get it to work ip connect.
    rdac seems to connect and disconnect constantly.
    is there a recommended firmware version for the HP a-msr20-20

    ReplyDelete
    Replies
    1. I don't recall seeing a recommended software version for the Router. As far as I know, all software versions should work for what MOTOTRBO needs.

      Delete
  8. Hi all, wonder if somebody can help on using a SLR5500 repeater connected to power and battery back up and using the LAN output to a Ubiquity micro link it keeps on resetting the link to factory settings, if you remove the battery back up from the repeater it works good with no hick ups. if only using battery back up it also resets the link.
    thanks Gert

    ReplyDelete
    Replies
    1. Sounds like you have a grounding problem.

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    2. using the same setup ie all wiring but substituting it with a DR3000 both power and battery backup, it works perfect.

      Delete
  9. Good evening, I have two separate groups, each group contains five gp340, so I need to know how to program the gp340 each group. thank you

    ReplyDelete
    Replies
    1. Have a look at https://www.youtube.com/playlist?list=PLajLE2N1ugvCnqpAu4vwHkzni7z5BV8Mg

      Delete
  10. Wayne...
    A test of your god like powers...
    I have a DR3000, 2 DP4400s and 2 Simoco SDM600s:
    The DP4400s work together in duplex from the repeater, the SDMs work together off the DR3000.... but no audio between the two brands, as far as I'm aware they should actually work....
    Also... I have an Xd base that behaves exactly the same, both sets of radios show activity on the channel when the other is keying up....
    somewhere I think this could be a talk group/contacts issue
    Any ideas?

    ReplyDelete
    Replies
    1. Do the radios work with each other on simplex?
      Are you able to make a Private Call between the radios?

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    2. ok.... in simplex, the SDM can hear audio coming from a DP4400 but, the 4400 will not pass the audio from the SDM although it can see the channel is busy. To make the SDM receive I set it's receive Mute to Monitor... it's somewhat taxing my mind!

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    3. Seems like a configuration problem. Have a look at my videos to be sure the DP4400s are set up okay: www.youtube.com/cwh050.

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    4. Wayne, it was a talk group/Contact call ID and RX list mismatch.... the language used in CPS and FFP differ, had me chasing my tail for a bit, but I got the in the end and the systems worked together rather well.
      Thanks for pointing me in the right direction.

      Delete
  11. This comment has been removed by the author.

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  12. Hello Wayne
    I've got two DM3601 radios and a couple of questions......
    Is there the posibility to connect two devices with serial ports interfaces with those radios?
    Or Can we connect two pc's using the usb programming cable (over the virtual ethernet port) with those radios?

    Thank you

    ReplyDelete
    Replies
    1. Yes and no. Yes, you can connect the radio to a PC and use it to send data (at around 1kbps). SmartPTT File Transfer can be used for this (and it's free).

      If you're looking to build an IP network then MOTOTRBO won't help as the Windows SMB protocol -and others- would introduce too much overhead.

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    2. Thank you for your information, it is very useful.

      Delete
  13. Hi Wayne, I can't find anything in the System Planner or get help from dealers on this. I have a fleet of DP4801 and these were all upgraded to Firmware 2.6 however, even with Firmware 2.5 they have this problem: How can we switch off the predictive text on writing messages. I have done this from the settings menu, but it has no effect at all. My subscribers are a multinational team and even though the language of the radio is in English, the predictive text is an absolute nightmare and is driving everyone crazy - the best anyone can write is "hi" this is before they get a screen of garbled rubbish. Can the SMS write text function be made to work like a mobile phone with the predictive text, predictive capitalisation, predictive anything turned off? I was hoping Firmware 2.6 would have addressed this.
    Thanks

    ReplyDelete
    Replies
    1. According to the user guide:

      [OK] to access the menu.
      [V][ᴧ] to Utilities then [OK]
      [V][ᴧ] to Radio Settings then [OK]
      [V][ᴧ] to Text Entry then [OK]
      [V][ᴧ] to Multi-tap and press [OK]


      ([V] means down arrow [ᴧ] means up arrow)

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    2. This is a helpful comment: Once the predictive text is turned off. Read the codeplug back to the CPS and clone this to other radios then you don't have to do it manually. Would be nice for these options to be added to CPS/Codeplug

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  14. Hi Wayne, I'm trying to connect an Si500 to Radio Management 1.3. I have successfully created a device on RM, but when I schedule a job the client hangs on "Waiting for Device Programmer". Am I missing something really basic? The RM Device Monitor is blank, and the Motorola Device Programmer Settings page successfully connects to the server when I hit the "Test" button.

    The Si500 is connected to the PC by USB, and they are on the same network. The Si500 also says: Connecting to Radio Management, but it pretty much hangs on that screen until I turn it off.

    Am I missing something simple here? The device is definitely connected to the pc, as it comes up in the Android debugger, so I know that's not the issue.

    Thanks heaps for all the help on your blog!

    Cheers

    ReplyDelete
    Replies
    1. Sorry, I am not familiar with the Si500.

      Are you using MOTOTRBO Radio Management?

      Delete
    2. Hi Wayne, thanks for responding.

      Yep, that's the software I'm using. I think the issue is more that Radio Management seems to be waiting forever for the Device Programmer, I was just wondering if you had ever come across an issue like this.

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    3. MOTOTRBO Radio Management does not support the Si500. For the Si500 you need to use DEMS or CommandCentral Vault. See http://bit.ly/2acijy3 ; http://bit.ly/29Xeboz and http://bit.ly/2a31Cqa.

      Delete
  15. Hello Mister Holmes.

    I have a question for you about the MOTOTRBO SL 4000 please. The SL 4000 , is very good radio, small, stylish, practical and robust, wide screen and great ergonomics but only to the UHF band. Do you think that Motorola solution release the new radio SL 4000 in VHF band ?

    The sl 1600 radio in VHF band is good but i think the SL 4000 is the best radio for me.

    Thank you

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  16. This comment has been removed by the author.

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  17. My Name's Anthony, sorry :)

    ReplyDelete
  18. Hello Mister Holmes.

    I have a question for you about the MOTOTRBO SL 4000 please. The SL 4000 , is very good radio, small, stylish, practical and robust, wide screen and great ergonomics but only to the UHF band. Do you think that Motorola solution release the new radio SL 4000 in VHF band ?

    The sl 1600 radio in VHF band is good but i think the SL 4000 is the best radio for me.

    Thank you

    ReplyDelete
    Replies
    1. Sorry, I cannot comment on Motorola Solutions' product roadmap.

      Delete
  19. Hello Wayne.
    I'm working with LCP system but I have a problem with the router configuration. Support told me that the problem is that I´m using Vlan in my system and Motorola has mandatory rules about using LCP without that.
    Can be posible another solution to manage voice and GPS data using vlan's in my network?
    I´m using the Trbonet Enterprise system. Do you know is another Dispatch can solve it?
    Thanks in advance

    ReplyDelete
    Replies
    1. Sorry, I don't have enough information to give a reliable answer. There should be no issue with running a Multisite Capacity Plus system on a VLAN. What you cannot do is use VLANs to avoid using Routers on each site.

      Delete
  20. Hi Mr Holmes, I wrote you on the you tube channel an i hope you can see if not then i will try to repeat the same question to you. Thanx any how for everything you are sharing with us.

    ReplyDelete
  21. Hello I wonder if you can help

    I have a fleet of DP3400s some fw 01.08.20 prog'd on XP CPS 10.1 No problem but
    these cannot be seen on CPS 12.1 or above on W7 or W10 computers

    but some of the same fleet of DP3400s are fw 01.12.13 which prog's Ok on W7 / W10 CPS 12.1 or above but cannot be seen on CPS 10.1 on XP

    My XP cannot load the higher fw into the radios in order for them to work on the newer machines / CPS

    Could you advise how I can harmonise my fleet to run on one CPS from one PC / Laptop ???

    BTW I have both A + B programming leads tried both and makes no difference which ones
    used above scenario remains the same.

    any advice most gratefully appreciated

    Many thanks

    Martin

    ReplyDelete
    Replies
    1. I'm not sure what you mean by "
      these cannot be seen on CPS 12.1 or above on W7 or W10 computers" but the latest CPS works with all previous radios/versions. There is one caveat: older radios might not be readable if they are plugged into a USB 3.0 port.

      Unless you are after any new features introduced post-R1.8, there is no reason to upgrade the older radios.

      Delete
  22. i can noe t write space character in the codeplug password prompt. i have set the password 1688 22 in the cps and wrote this to the radio, but when i read the codeplug from the radio, i can not write the spaces and get error. pleas

    ReplyDelete
  23. Hi Wayne, firstly fantastic blog! - A quick question, can a Mototrbo codeplug be updated say from CP version 08.01.08 to 08.02.06? If I program a later fw radio (DP1400) with earlier CP I get the invalid fields box, ignoring will program but major incompatibilities with audio and volume control action operates back to front! Your thoughts please ;-)

    ReplyDelete
    Replies
    1. Don't clone codeplugs but read and drag-drop. The DP1400 is a very simple radio with only a few settings.

      Delete
  24. Hi Wayne,

    If server CMSS dead then Capacity Max will operate how?

    Thanks,
    Quoc Mai,


    ReplyDelete
  25. Hi Wayne, just some hints that may help newbies with their setup. I currently have 2 sites, each with a MTR3000, linked by private Point to Point link over 11Km. Until I upgrade with extra repeaters, LCP and a Control room/dispatch solution, I have IPSC and use just one slot as a wide area group. operates like my old Analogue system and is less frightening for my subscribers. So, problems: Luckily I had a temporary license from a watcher server/client program and can see activity. My subscribers all complained channel busy, so here's what I did temporarily to make them happy (You need to stress the importance of operating etiquette) Repeater: Slot 1 Voice only, Radios: ARS Delay 60 minutes (This is a random figure and is anywhere up to 60 minutes), Disable GPS (I Don't need GPS until the Control Solution license arrives). This cut down the "Busies" immensely on my 150 Portables and 80 Vehicle radios. However what I noticed is my subscribers who travel across the city to our HQ call the dispatcher when leaving the residence and when arriving at the HQ and vice versa. So the majority of traffic is 07:30 - 08:30, 12:00-14:00 and 17:00 - 19:00 and I notice the subscribers just turn on the radio and expect it to transmit (even without listening to see if a call is in progress). As you know when the radio is first switched on, it chit-chats with the repeaters so the answer is, switch the radio on whilst the subscriber applies make-up, updates FaceBook profile etc.., then magically, after listening to see if channel is free (wide area group), hitting the PTT immediately works. The Transmit condition is set to Channel Free however, The Security team and myself as Comms engineer have it set as "Always", however I am very tempted to set all the radios to "Always" and home my subscribers behave. This all depends on contracts, budget, delivery dates, customs (Deepest darkest West Africa) and my time until the new kit arrives and is installed.
    If readers of the blog are dealers, then you will know the frustration when customers change and demand more radios, less busies but expect immediate high performance. I am on my own with a growing network which unfortunately takes over 12 months to get kit purchased to installation and commissioning and now the political climate changes and the bosses now change their minds and our staff numbers grow, so I have just ear-marked a five figure sum for more kit and 10% extra.

    ReplyDelete
  26. Hello, I want to use two antennas for a relay dr3000, so I have to separate them from -50db, so I want a solution to calculate this separation between the two antennas in meters. An antenna for the reception and another antenna for the emission.merci

    ReplyDelete
    Replies
    1. If the RX frequency is different to the TX frequency, use a duplexer.

      Delete
    2. If the TX-RX separation is less than say 300kHz then have a look at http://www.commscope.com/calculators/qvisolation.aspx and http://www.commscope.com/calculators/qhisolation.aspx

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    3. 300kHz is the minimum that can practically be achieved using a duplexer. Always use a duplexer as a very minimum.

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    4. thank you my brother.

      Delete
  27. Wayne,

    Have done quite a bit of trbo work.. Trying to see if there is a way for the 5550 (or 2500) mobiles automatically switch between two or three channels (2 or 3 Trbo repeaters, conventional, no site connect--because no internet) by adjusting RSSI. Basically, a roam feature for non-linked repeaters.

    ReplyDelete
    Replies
    1. You can set all the repeaters up as Masters and have them generate beacons for the radios to use for roaming. The radios would otherwise be set up as if they were on an IPSC system with roam lists etc.

      Delete
  28. I installed a dr3000 repeater in mixed mode, so I started doing tests
    I had a situation that I did not understand, in a site remote from the repeater, when I use the analog mode no problem of transmission and reception, but when I use the digital mode, reception 5/5 , But emission 0/5. Knowing that my colleague is near the repeater. Normally when I can transmit in analog mode it means that it is possible in digital.merci brother

    ReplyDelete
  29. In the same shelter we have two reapeter, then in my channel I receive the communication of the other reapeter which is in the same shelter, we know that we have not the same frequency.I want to know What the problem is and how to fix it. My reapeter dr3000 motorola and the other reapeter is kyodo kg110. thank you

    ReplyDelete
    Replies
    1. It sounds like you had an intermodulation problem.

      In general, the steps to solving intermodulation are:

      Check that all frequencies on the site do not produce intermodulation - there is software that will run this calculation.
      Make sure all the equipment on site is working to specification.
      Make sure all filtering equipment is tuned and in good order.
      Make sure all RF cables are not damaged.
      Make sure there is no rust or corrosion an all electrical joints.
      Make sure the grounding is okay. Everything to the same earth grid buried in the ground.

      If all of the above checks out okay, contact your local telecommunications regulator to see if they can help you with this.

      You've given me an idea for my next post!

      Delete
  30. Hi Wayne,

    I have Cap + system running with 6 repeaters. All SLR5300 repeaters.
    Users experienced that some times we have missing conversation( once subscriber press, receiving subscriber get unmuted with delay)some time we dont receive any thing though Tx radio Pressed.
    Looking for advise.

    ReplyDelete
    Replies
    1. There are generally three clauses for that symptom:

      Bad RF filtering and/or frequency planning.
      IP networking issues
      The RSSI Threshold in the repeater is set incorrectly (usually too high or too low).

      Solve/eliminate these three then your system should work perfectly.

      Delete
    2. can this be a FW version issue. I am using 2.7.1 for portable and 2.7.3 for mobile.

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    3. No. The root cause is either RF or configuration in your case.

      Delete
  31. Hi Wayne, how many radio manager device programmers can be connected to the radio manager server?

    ReplyDelete
    Replies
    1. To be honest, I don't actually know the exact number. It's definitely more than 1.
      Remember that the Device Programmer and Radio Management are two separate applications.
      I'll find out....

      Delete
  32. This comment has been removed by the author.

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  33. Very cool Blog! The Motorola CPS V14 is very slow on the new Windows 10 PC with the Windows creators update. On the other older Windows 10 PC it is very fine. I don't know if the Creators update makes the difference. Tried with uninstall and new installing without success. Maybe you have an idea?

    ReplyDelete
    Replies
    1. It seems Windows 10 Creator Update is affecting other applications
      https://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-10-creators-update-slows-down-pc/9d5d13f1-48b1-4803-9d29-7cf92883f1f4

      The suggested "fix" is to roll back to POW10.

      Delete
    2. Thanks for the replay and the link. Probably it seems to be the problem. Except the CPS I didn't notice a software working slow after the Creators update. I had docking problems with the large external display but with the last fix they are gonne.

      Thanks for the help and for your wonderful blog.

      Delete
  34. Hi Wayne, thanks to your site and suggestions, our 2-site system has been working a treat. However our staff and vehicles are increasing and so will the radios. I have ordered LCP from our dealer in addition to more DP4801 and DMs, we have two MTR3000 connected as IPSC. It is going to be a big job to move to LCP and still maintain a workable radio network for security reasons (we are in a High Risk country and independant communications - radios are mandatory). Have you any suggestions how I can accomplish the move to LCP but keep a 2 site radio network going? I imagine that once the rpeater is in LCP mode that is it?

    ReplyDelete
  35. Hi Wayne,

    Awesome blog you have running here. Great info and ideas. I have a problem with a GP680 radio. I only want to use it on a conventional personality but I cant get it programmed. Im using CPS R00.08.08 and the codeplug is mprkvhf.rad. So with that being said I add all of my frequencies and after that I go to write radio. As soon as I click write radio it gives me an error "Radio is not responding. Make sure the radio is powered on and connected to RIB" I am using the USB cable without the RIB. So does that mean I need some other version of software or am I doing something wrong?

    ReplyDelete
    Replies
    1. My radio details:

      Model: MDH25RDH9CK6AE
      Type: PW205H
      Ver. no: R02.09.02

      Delete
    2. More than likely the problem is with the cable. The common problem with these cables is they can't generate the correct levels (TTL) required by the radio.

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    3. There is no separate version of software for USB, you just have to ensure you're using the RIB with a genuine Prolific USB to Serial adaptor.

      Delete
  36. Okay so I cant do anything with the radio without the RIB? Because my cable is connected directly to my pc. If that is the case then I regret buying this radios in the first place.

    ReplyDelete
    Replies
    1. You are probably using an aftermarket "Chinese" cable. These cables are notoriously bad because they all use a fake PL2303 chip. These chips create most of the problems (see my comment above). If you use a genuine cable, you should have no problem. There is also a RIBless cable that plugs straight into the PC serial port.

      Otherwise sell the radio on. There's lots of people who'd be interested I think.

      Delete
  37. Hello my brother, I have a question, can I flash my radio gp380 with a usb programming cable from china, thank you and again what is the latest version of the update of gp380 and gp340.

    ReplyDelete
    Replies
    1. I wouldn't take that chance. If the cable crashes during the upgrade you'll risk "bricking" your radio.
      The last update was R03.17.01 (dated 2012).

      Delete
  38. hi my brother, so I want if possible your opinion on a problem:
    we are working on the spacing 25 kHz, in areas where I can have a cover with a lot of noise in analogue but it remains audible but when I balance in digital c no no coverage (12.5khz).
    and still in the relay is what I have to lower the low power has 1 watt and high power to 27.5 watt to improve the coverage.

    ReplyDelete
  39. hi my brother, if you want, I want explanation about the diversity of antennas on the system tetra motorola. and again, what is the difference between the p25 motorola system and capacity plus.

    ReplyDelete
  40. Hi Wayne, I just saw the release notes of firmware R2.8.5 that was just released in the US and it looks good! Do you know when it will be available in the UK?

    ReplyDelete
  41. Hello sir, I want to know if there is a possibility to create an email network in my network vhf. and with what equipment?
    thank you

    ReplyDelete
    Replies
    1. See my response on Facebook: https://www.facebook.com/dj0wh/posts/1853946074634228?comment_id=1856416287720540

      Delete
  42. Dear Wayne,
    I'm looking for the partnumber of a RF adapter for the SL1600. To tune the TX power. Can you help me?

    ReplyDelete
    Replies
    1. 28012039001 RF Antenna Adaptor Adapts radio’s antenna port to test equipment.
      HW000406A01 RF Antenna Adaptor Holder Holds the RF antenna adaptor.

      Delete
  43. HI wayne I have small issue regarding SLR 5500 analog mode when i use CSQ unable to pass multi PL or DPL from radio.

    ReplyDelete
    Replies
    1. That is normal. A repeater is not supposed to pass the PL generated by the radio. If a single PL is used, program the repeater for PL operation. If multiple PLs are needed, use a Tone Controller. See https://cwh050.blogspot.de/2018/01/what-is-pl.html.

      Delete
  44. Hi Wayne,
    I need to know the; Mean Time Between Failures (MTBF), and Mean Time to Repair (MTTR), of the Motorola DM4000 mobile radio.
    I tried to look at the specs, didn't found.
    Thanks for your help.

    best regards,
    jsoares@eda.pt

    ReplyDelete
    Replies
    1. Contact Motorola or your Supplier. They can get this information. This is not published for a number of reasons.

      Delete
    2. https://cwh050.blogspot.co.uk/p/support.html

      Delete
  45. Hi Wayne, first I just want to say it's fantastic to see you offering your knowledge up like this, very nice. I've been having trouble getting this info from our supplier so maybe I can pick your brain.

    We're running the TRBOnet Enterprise 5.2 system with approximately 40 vehicles and wondering if we can improve our GPS positioning. At the moment, as you have said elsewhere it does run slightly better when we have fewer vehicles signed on, but when we're at full load (and we do use voice) it becomes hopeless. All our radios are a DM3601 model - Not sure on the firmware.

    With minimal vehicles, it updates maybe once per minute. On full load it varies but can be several minutes before our map updates.


    Do you know if we have any options at our disposal or something we can already tinker with? Even if we have to try get our supplier back out here, it would be good.

    Cheers

    ReplyDelete
    Replies
    1. Having 40 radios being able to update their location every minute is actually quite good, if there is no other traffic on the channel.
      Once a call is started, the radios will all monitor the call and wont send location updates.
      Similarly, having radios update their locations every few minutes - with voice traffic on the channel - is also quite good (and is to be expected).

      Some ideas:

      Try to avoid making too many calla on Talkgroups that include all radios (i.e. users who don't need to hear that call). If the dispatcher needs to talk to one person maybe try using Private Call instead. If the radios, not involved in the call, are set up to use Enhanced GPS or GPS revert, they will continue to send updates.

      My assumption is that you are using a Conventional or IP Site Connect system. If so and if the 2nd timeslot on the channel is not being used, or can be freed up, you can have the dealer set up the system such that timeslot 1 is used for voice and timeslot 2 is used for location/data.

      If you have a 2nd (or 3rd...) physical repeater (channel) at each repeater site, you could have the GPS sent on a separate channel by means of GPS Revert (aka GNSS Revert). This frees the channel(s) up for voice but also allows more location updates to be sent.

      Enhanced GPS and GPS Revert may require an additional Control Station radio attached to the TRBONET Server - since, in this case, inbound GPS will be sent on a different slot/channel. One Control station would still be needed to send out the location requests from TRBONET.

      40 radios updating every minute is also probably the best you'll even achieve on a single channel.

      Delete
    2. Other tweaks like using Compressed UDP Headers and Setting ARS to only send on System Change (as opposed to on Site Change) will make some difference.

      Also, simple checks, like making sure the system is working normally and is free of interference, will ensure overall "throughput" is optimized.

      Delete
  46. I have a question: are there high-gain antennas for portable dp 4800 and dp3600 or even for portable gp380 gp340, thank you

    ReplyDelete
  47. Hi wayne
    i am facing a problem with DR 3000.Repeater is unable to pass Self test as well No RX,Tx & When i am going to read it its showing a error of 1244.only i can write a file on Repeater .


    Any Solution ? Guideness please

    ReplyDelete
    Replies
    1. Try doing a Device Recovery using the CPS.
      You’ll need the firmware upgrade package for the DR3000 installed too.

      Delete
  48. i have tried to recover it.but the as result recovery not Completed just 70% done.and Shows error contact customer Support.

    ReplyDelete
    Replies
    1. Two possibilities:

      The repeater had old firmware and the Windows driver needed to support the new firmware is not installed.

      Otherwise the repeater is faulty.

      Delete
  49. when it reached at 70% it shows error 1802.Most Probably Tx Brick is Faulty ?

    ReplyDelete
  50. 2nd DR 3000 Fault.
    1.Repeater Self Test pass Fail.No TX,RX
    2.unable to Programme

    Please Advise what to do ?

    ReplyDelete
  51. hi Wayne
    can i get connection Diagrame of
    IMPRES HEAVY-DUTY MICROPHONE (RMN5053) ?

    ReplyDelete
  52. Hello wayne

    Can we Disable Dr3000 Remotely through Rdac?

    If yes please let me inform how we can do,?

    ReplyDelete
  53. am looking for an antenna adapter for portable d4800, I want to know the type of antenna connector for the dp4800 motorola.
    I found this site: http://www.smileyantenna.com/product-p/15050.htm
    is it these antennas really have the gain at 3db?

    ReplyDelete
    Replies
    1. This is also a helical antenna and will not have anything more than 0dBd gain.
      If you want to use the DP4000 series with an external antenna - you should rather order the SMA model-variant.
      The regular DP4000 series radio has no means to use an adapter. There is a fixture that can be used for testing but this fixture cannot be used for connecting an external antenna.

      Delete
    2. See https://cwh050.blogspot.com/2017/02/an-sma-connector-on-portables-yes-you.html and https://cwh050.blogspot.com/2012/12/rf-test-connection-on-dp4000-series.html.

      Delete
  54. My Motorola DP4801e makes a clicking noise at the beginning and at the end of receiving a signal in DMR and analog. It was told to me the none "e" version dosen't make that noise. Is this noise common to all DP4801e or is it only my radio? Is there a firmware version to bring that noise away?

    ReplyDelete
    Replies
    1. No, this is only your radio.
      Is this clicking heard on the transmitted signal or only on your end?
      I don't think it's a firmware problem and your best bet would be to return it to the Reseller/Diatributor you bought it from - see https://cwh050.blogspot.de/p/support.html.

      Delete
    2. Thank you very much. Here is a small record with the noise: https://photos.app.goo.gl/Mz3CfTNTmJ5TYuE19

      Delete
  55. GOOD EVENING? THEN I have a question: is the fact that placing a L.N.A (low nois amp) at the receiver can improve the sensitivity of the receiver vhf, and can I have professional brands that make these L.N.A.
    THANK YOU

    ReplyDelete
    Replies
    1. Using a LNA is generally a bad idea. Why? Becuase the LNA amplifies the signal you want plus all the noise within the LNAs passband.
      There are circumstances where you would use a LNA such as a multicoupler to distribute the received signal to multiple receivers or to counteract the line loss at frequencies around 1GHz and above.
      But for general LMR use, a LNA is a NO GO.

      Delete
  56. Hi Wayne,
    I have a Motorola DP4801 for a few years already. I use it mostly on construction sites. For this I use the remote microphone that is very convenient. Strangely for 2 days the "push to talk" PTT microphone no longer works at all. The sound always comes out of the remote microphone but I can't activate the PTT. Yet the remote microphone works perfectly on the DP4400 of my coworkers ...
    I always pay attention to my equipment and my DP4801 is in perfect condition, I tried to clean the connector with contact cleaner but no results ...
    Have ideas to suggest to try to get the PTT working again?

    Best ragards,

    ReplyDelete
    Replies
    1. See photos here : https://bit.ly/2Lg40t0
      and : https://bit.ly/2GCvipZ

      Delete
    2. I assume you did not change anything in the radio configuration on the day the PTT stopped working? There is one CPS setting which might affect this.

      Does the radio go “”bip-bip brrrrp”” when you plug the RSM in?

      I don’t really like contact cleaner because there not all the same and many have oil in them which makes thing worse. I you can’t get hold of oil-free contact cleaner, some Eau De Cologne on a q-tip makes a good substitute as it contains Limonine and Alcohol.
      If you only have contact cleaner, spray some on your fingers to make sure it doesn’t contain oil.
      Rub the q-tip in a circular motion between your fingers in each hole.

      Also make sure the pogo-pins on the accessory are clean. Sometimes dust can get in them affecting their “springiness”.

      Delete
    3. First of all thanks for your quick reply.
      The DP4801 has been reprogrammed to activate the GPS geolocation function thanks to the mototrbo CPS software. Would a setting have been inadvertently changed during programming? What is this famous parameter that can be involved? Otherwise, the contact cleaner is based on isopropyl alcohol. The connectors are completely clean and in good condition as you can see in the photos. In addition, this remote microphone works very well on the DP4400.

      Delete
    4. There are actually two settings:
      Accessories>>Cable Type must be set to Motorola Solutions.
      General Settings>>Microphone>>Mic Selection Rule must be set to Default.
      General Settings>>Alerts>>Talk Permit Tone should be set to Analogue&Digital.

      I assume the radio does nothing when you press the PTT? (i.e. no "bonk" tone)
      A also assume you have a Motorola (genuine) RSM?

      Delete
    5. Thank you for your help.
      I confirm that when I press the "PTT" of the remote microphone, the radio produces no tone. I join you via this link the programming file which is the one of my DP4801 for the EMEA version of the CPS (v15, build 754).
      It does not seem to me that the microphone is an official motorola product, but it should be noted that it worked perfectly for over a year! :-)

      Codeplug link : https://bit.ly/2x5nQnQ

      Delete
  57. Thank you for your help.
    I confirm that when I press the "PTT" of the remote microphone, the radio produces no tone. I join you via this link the programming file which is the one of my DP4801 for the EMEA version of the CPS (v15, build 754).
    It does not seem to me that the microphone is an official motorola product, but it should be noted that it worked perfectly for over a year! :-)

    Codeplug link : https://bit.ly/2x5nQnQ

    ReplyDelete
    Replies
    1. The radio codeplug seems okay. That means there are two possibilities:
      1. The radio is faulty.
      2. The RSM is faulty.
      Perhaps take the radio to a dealer who has a known good RSM and try this on your radio.
      If that checks out okay and the radio is still under warranty, you can return it for repair. If it's out of warranty, have the dealer check the flex cable between the front cover and main board.

      Delete
  58. Hi Wayne,
    I got some question for P3688.
    how to use the channel pool function for P3688?
    for my understand Channel pool function is for Capacity Plus,but P3688 only can activate IP site connect, please advice.
    thank you.

    ReplyDelete
    Replies
    1. Apart from Capacity Plus, the channel pool is used for IPSC roaming. See https://youtu.be/UEHpseXfF30?t=11m56s.

      Delete
  59. hello, I want to access the programming of o / i (accessory connector) of the motorola gm660. i have mpt cps.

    ReplyDelete
  60. hello, I want to access the programming of o / i (accessory connector) of the motorola gm660. i have mpt cps.

    ReplyDelete
  61. i want utiliser this : https://fr.aliexpress.com/item/Radio-Relay-Station-Repeater-Connector-Cable-TX-RX-Double-Transfer-Bidirectional-for-Motorola-GM300-338-3188/32707910580.html

    ReplyDelete
    Replies
    1. This will not work. The GM660 does not have the required inputs and outputs needed to support external “controllers” in conventional mode.

      Delete
    2. thanks, so with two gm660 I can not build a relay repeater.

      Delete
    3. so can I use that to build a repeater with 02 gm660?:https://www.radioparts.com/motorola-accessories-hln3333b

      Delete
    4. The GM660 is a trunked radio and does not have all the required inputs and outputs that a GM360 (for example) would have. Specifically, it does not have a carrier detect output; does not have a flat audio input or output and pre-/de-emphasis cannot be turned off.

      Delete
  62. Hi,

    Can a DP4401 Ex UHF radio have the ability to integrate with a tetra system gateway?

    ReplyDelete
    Replies
    1. There are two possible answers:

      If you want to talk from a DP4401Ex to a TETRA radio via a gateway, yes this will work. You just need the relevant hardware on the TETRA system to support this.

      It is not possible to connect a DP4401Ex to a gateway via a cable (CCGW in a Dimetra system) as it doesn’t support E&M. I suppose VOX could be used but this doesn’t make sense.

      NB! Connecting anything other than the approved Motorola accessories onto an ATEX radio will invalidate the certification.

      Delete
  63. thanks, so with two gm660 I can not build a relay repeater.

    ReplyDelete
  64. Hello Wayne, I have moved employer but still use MotoTRBO. Just a small note, the new organisation does not allow bit.ly or other shortened links therefore I have to use smartphone connected by 3G/4G to get the link and email to myself. I don't know if anyone else has this problems on official systems but this is just to be aware that for security reasons shortened adresses are frowned upon.

    ReplyDelete
    Replies
    1. I use bit.ly to keep a track on the number of clicks I get on external links. Google Blogger + Analytics doesn't do this. This is important for certain reasons.

      To change this I would need to find another host ($$$) who supports this.

      If there's enough demand I'll include direct external links as a footnote.

      Delete
  65. Wayne

    Is there an article here on configuring the mobile to accept AT commands via USB? Or does it just do it anyway? Having problems getting a ( commercial) modem to work, and not sure what I am doing wrong. Just PTT and taking voice back over an IP connection to a remote site. I have to say that this site is excellent and has helped me a lot in setting up systems. Keep up the good work.

    ReplyDelete
    Replies
    1. No, there isn’t anything here that covers AT commands. That’s a little to complex to cover here and some of the stuff is probably covered by a SLA.

      Delete
  66. Ok WAyne - thanks. I am trying to sort out an ambulance customer whose fallback ICCS supplier has just gone to the wall , just after they stated a project to integrate DMR onto it as well as the Tetra. I have the modems and I saw them working on a test system with the suppliers own Trbo kit - but I didn't get a codeplug arrgh! So I know it is down to the radio config. Ah well. Trial and error is a good way of learning! :)

    ReplyDelete
    Replies
    1. This might help https://cwh050.blogspot.com/2015/08/radio-network-parameters-in-cps.html

      Delete
  67. Hi Wayne, i'm urgently looking for Motorola Network Router, i.e. ST6000 - S6000.
    Can you please help me get one or a replacement.
    Thank you.

    ReplyDelete
    Replies
    1. Probably the quickest way would be to make contact with Motorola directly:
      https://www.motorolasolutions.com/en_xu/how-to-buy.html

      Delete

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