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  1. #1
    Join Date
    Aug 2019
    Posts
    6

    Default Duplex on a Baofeng handheld

    Hi everyone, this is my first post so please forgive any glitches of etiquette, which of course I’ll try my best to avoid.

    My question relates to handheld radios and in particular the Baofeng UV-5R, which I would like to use as a backup device. My problem is that I’m not very technical and I think the answer to my question might lay in the “offset” functionality of this device, but I don’t know for sure and certainly don’t want to cross any Ofcom rules and regulations.

    So for certain services such as weather forecasts etc., we are now requested to use the Coast Watch service. The problem is that they use channel 65, which transmits on a different frequency to the one it uses to receive. So to talk to Coast Watch you need a duplex service. But the Baofeng appears to be a simplex device.

    I purchased it thinking that as it tunes using frequency or channels, it would be great as a cheap backup, but when Baofeng say channel, they really mean memory location. I.e. it has nothing to do with the channel allocations as we understand them for UK shores communication.

    The next step then is to understand if this device can be programmed to transmit on one frequency and receive on another without pressing anything other than the PTT button. Coast Watch transmits on 156.275MHz but receives on 160.875MHz. So can they be tied together on this radio to give me an effective duplex service or is communications with Coast Watch out of the question unless I use a dedicated marine handheld?

    Any advice would be greatly appreciated.

    Gary

  2. #2
    Join Date
    Jun 2007
    Location
    Home: North West, Boat: The Clyde
    Posts
    3,564

    Default Re: Duplex on a Baofeng handheld

    Hi Gary and welcome to the forum.

    The Baofeng UV-5R is a very versatile, great little portable transceiver.

    First piece of advice is “do not try to program it manually”. It can be done but it is very laborious.

    The easiest way to program it is via CHIRP free software.

    https://chirp.danplanet.com/projects...wiki/CSV_HowTo

    You’ll need a suitable transfer cable and it’s worth buying genuine as the USB plug contains a chip. Cheaper, knock-off cables notoriously give unwelcome glitches.

    Send me a PM with an email address and I’ll send you an excel file, formatted to CSV (comma separated variables) with all U.K. marine VHF frequencies and channels, simplex and duplex

    It’s then quite straightforward (but I will help by phone if necessary).
    Open CHIRP.
    Connect your transceiver, using the cable.
    Upload radio to CHIRP. This will look like an excel page.
    Save it in case you ever want to restore the frequencies that the radio had when you bought it.
    Open the excel file (the one I’ll send you), cut and paste the Table into your CHIRP page.
    Save this with a new file name.
    Download the new file to your radio.

    The CHIRP website gives links to YouTube video “how to”.

    Where are you based?

  3. #3
    Join Date
    Aug 2019
    Posts
    6

    Default Re: Duplex on a Baofeng handheld

    Hi David,

    Thank you for responding to me so quickly and fully. It sounds like an easy fix to the problem which is great news.

    I'm based down in Devon, around 15 mins from Sidmouth, Budleigh and Exmouth. Will PM you as suggested.

    Thanks again for your help.

    Gary

  4. #4
    Join Date
    Nov 2016
    Location
    Lincoln
    Posts
    835

    Default Re: Duplex on a Baofeng handheld

    +1, very easy to do with the Chirp software especially if someone sends you the spreadsheet

  5. #5
    Join Date
    Jun 2013
    Location
    Hopefully somewhere warm
    Posts
    9,391

    Default Re: Duplex on a Baofeng handheld

    Quote Originally Posted by gazsherminator View Post

    Any advice would be greatly appreciated.
    Don't forget any radio transmitting on the marine vhf frequencies must be type approved, the baofeng certainly isn't. Legalities aside, if you don't really know what you're doing it might be a bad idea. Though the uv5r is a handy radio, I use one just as low power receiver to monitor 72 when anchored.

  6. #6
    Join Date
    Nov 2016
    Location
    Lincoln
    Posts
    835

    Default Re: Duplex on a Baofeng handheld

    Or to listen to channel 0 to be nosey

  7. #7
    Join Date
    May 2001
    Location
    UK East Coast
    Posts
    36,070

    Default Re: Duplex on a Baofeng handheld

    Quote Originally Posted by Daverw View Post
    Or to listen to channel 0 to be nosey

  8. #8
    Join Date
    Sep 2010
    Location
    Alness / Loch Ness Northern Scottish Highlands.
    Posts
    9,000

    Default Re: Duplex on a Baofeng handheld

    Can I piggy back onto this thread as we have someone with experience of these radios.

    Can you assign "names" to the channels that you program into it?

    I am thinking of buying one and programming all the 2 metre and 70 cm amateur channels, Marine channels, and the PMR446 band channels into it. (and perhaps a few others)

    But I would prefer (particularly in the case of marine channels) for it to display a "name" on it's screen rather than the actual frequency.

    Is this possible?

    Also can you inhibit TX on a particular channel, e.g if you programmed channel 0 could you make that receive only?

    And lastly will they do AM receive (air band)?

    Thanks.
    Last edited by ProDave; 14-08-19 at 18:51.

  9. #9
    Join Date
    Nov 2013
    Posts
    1,494

    Default Re: Duplex on a Baofeng handheld

    Quote Originally Posted by ProDave View Post
    Can I piggy back onto this thread as we have someone with experience of these radios.

    Can you assign "names" to the channels that you program into it?
    Yes. I've done it - BY HAND - I didn't have the lead at the time. (Buy the lead - or you will use up your annual swear word allowance in a morning)
    I've only programmed M1, M2, and PMR as it was for some shore based contact to a committee boat (all dodgy I know!(

    Also can you inhibit TX on a particular channel, e.g if you programmed channel 0 could you make that receive only?
    Yes - see: https://chirp.danplanet.com/issues/211

    And lastly will they do AM receive (air band)?
    Thanks.
    Don't think so - will depend on the radio but not seen AM.

  10. #10
    Join Date
    Nov 2016
    Location
    Lincoln
    Posts
    835

    Default Re: Duplex on a Baofeng handheld

    As far as I recall it’s only FM, radio at home so cannot check.
    I use my Ham handheld for normal use off the boat which does all in both FM and AM but a lot more money though
    Last edited by Daverw; 14-08-19 at 20:34.

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