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Planning to Purchase an MTR5B, Questions to Users

Discussion in 'QRP Corner' started by KD8EDC, Dec 1, 2017.

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  1. KD8EDC

    KD8EDC Ham Member QRZ Page

    Out of curiosity, how did you connect the 9v battery to the MTR? 9V snap attachment connected in some fashion to the powerplug that's supplied?
     
  2. N6MST

    N6MST Ham Member QRZ Page

    Yep :)
     
  3. US7IGN

    US7IGN Ham Member QRZ Page

    Outdoor I use my clone of PFR http://www.us7ign.com/?p=628 with china battery inside like this https://ru.aliexpress.com/item/DC-1...ery-smart-CCTV-security-camera/301533089.html

    And clone of MTR http://www.us7ign.com/?p=884 with modified power bank (case for 4 li-po cells https://ru.aliexpress.com/item/4x18...&terminal_id=93b4d2e77f34415d927f4e4eac4f8094 which I took from old laptop battery and switch http://uarl.info/forum/index.php?topic=15.msg530#msg530

    My mcHF I use with battery from my bike http://www.us7ign.com/?p=998

    Indoor I use all of them with 12V 3A noname china power supply
     
    N6MST likes this.
  4. N6MST

    N6MST Ham Member QRZ Page

    Dude. You got any videos of those radios in operation? Pretty awesome looking stuff!
     
  5. N8TGQ

    N8TGQ Ham Member QRZ Page

    That's the beauty of the MTR rigs. I ran my MTR3 on 3 2032 button cells just to see if I could. The whole idea is not being stuck with just one power option. You really can carry a whole hf rig including antenna in your pocket.
     
  6. US7IGN

    US7IGN Ham Member QRZ Page

    Yes, both PFR either MTR have amazing reciever. I like it very much especially due to its simplicity and low cost.
    I have not video with good audio. I would try to make it on holidays.
     
  7. N6MST

    N6MST Ham Member QRZ Page

    Your radios look very cool, thank you for sharing. Please do not go out of your way to make videos, I hoped you might already have some. Thanks again!
     
  8. US7IGN

    US7IGN Ham Member QRZ Page

    I have, but audio not good.


    I've been going to record a video for a long time and compare both radios. I will do it.
     
  9. NU6I

    NU6I Premium Subscriber QRZ Page

    Mark,

    I use 3 x 18650 batteries with build in protection from Amazon. That gives me a very long operating time without risking to blow the radio.
    They are Lithium Ion but with metal enclosure and are less risky than the LiPo.
    I also have LiFe from Bioenno for my other radios but that is more than 12V. You can also buy individual LiFe from Tenergy
    with tabs so you can solder 3 together and you stay below 12V.
    I used to have a FT817ND and would never go back. These little radios are way more fun, I also have a MTR-3B.
     
    KD8ZM likes this.
  10. US7IGN

    US7IGN Ham Member QRZ Page

    I got it =)

     
    KC8VWM and N6MST like this.

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