183 thoughts on “Modifications”

1. Oh, my apologies, i didn’t mean to be rude. Sorry and thank you for your help. Promise i’ll be more polite The next time..
   //Börje

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   • Enjoy the modification and best wishes

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2. How do i get The Crt xenon in to export / ham mode.? Is programming cable and firmware the only way? If that is The case where do i find it?

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   • No politeness! No hello, No Please

     https://tinyurl.com/y37myz7r

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3. Regarding the power bridge module for CRT Xenon:

   You´ll have to correct me if i am wrong here, but the “power bridge module” is actually just a toggling relay, whit a Indication LED, that opens and closes the connection between B1 and B2 to control the Hi / Lo Output power? Wouldn’t it work just as fine withe an ordinary on / of switch between B1 and B2?

   Best regards

   //Börje

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   • The firmware controls it I’m informed. Personally I don’t know answer. Let me know how you get on with it.

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4. Hi Simon, wow was not expecting such a fast response ! Thanks for the info, I found the Mr A mod, but it seems in the pictures he leaves the white bridge cable cut and just has a SPST swtich accross pin 2&3 of the jumper ? Which I’m not sure how this returns the radio to EU norms, is this really all that is takes? I thought one would have too remake the connection in the white wire (via a switch) and also the connection between jumper pins 1&2 (also via a switch). I also found the details of adjustment on the post “HF Doktor Grant II Premium Adjustments *UPDATED*”. The HF Doktor mod does sound nice, where would one purchase such a kit ? (Apologies for clogging up the comments thread, I’m not sure if there is somewhere else to discuss this?) Thanks again, Mark.

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   • Replied via email

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5. Hi Simon, First off just to say what a fantastic blog you’ve built here, I really enjoy it. I have just purchased a President Grant 2 premium and would like to (perhaps) expand it (radio is obviously well out of warranty). I’ve trawled the blog here and watched your videos for info. So I have learned how to expand the radio, and from your info know it will retain the UK 40, great! My question is, if I join the white bridge cable with a simple SPST switch and connect 3 wires to the jumper pins with a SPDT switch, I should, in theory, be able to return the radio to its factory EU norms ? Would you agree ? The expansion of the radio increases the power thus not letting me (in theory) run a linear on the normal CB band, if I were to use the 2 switches, I can return it to legal power and in theory run a linear.
   My other thought was that if the radio was expanded, if there was a way to turn the power back to legal spec while it was still in export configuration, it would enable one to just run a linear all the time without the faff of wiring in switches, but I cannot find any info on this.
   Any help/advice much appreciated.

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   • Hi Mark Good Morning. Thanks for writing. As per the expansion your right on all.

     So if you unsolder the wire and place a new jumper across where the standard one is now you can indeed switch it. On the blog it’s called “Mr A Grant mod” I think or something like that. Up position = legal and Down = export mode for example.

     All the variables are on the blog showing what turns up and down the power so yes you can set in export mode 12w SSB and 4w FM/AM for example. Just need change the export ones and in EU nothing changes at all.

     OR you can purchase via HF-Doktor his switch mode modification that allows turn on with PTT press and it’s export mode and turn on with F press it’s in multi-norm mod.

     So your right on all. Yes you can switch it, yes you can turn down the power and run an amp. Absolutely as you told.

     Regards
     Simon

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6. Thank you so much for the CRT Millennium mod.
   I can confirm that it works on a new V3 which just arrived – Easy to do with jumper blocks.
   Retained the usual CB norms, but with an extra bit of oomph.

   It is a shame that most of the other radios out there need soldering to mod, so it is not easy to “undo”. The Millennium is good in the respect that with the power mod, the CB norms are untouched.

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7. Can I open up the modulation on the CRT superstar ss6900n. Is there a diode clip?
   AM

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8. Can you get lower channels out of the President Walker II FCC by cutting the white wire and moving the jumper over? Has anyone tried it ?
   Thank you for reading

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   • As I understood the radio is only 40 channels FCC. But guess you’ll let us know if you’ve got one, try it and see.

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9. Buongiorno,gradirei sapere su quali trimmer devo agire per aumentare la modulazione e i watt in AM, nel mio Crt Superstar 6900, cordiali saluti Fabio

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   • AMOD is AM modulation
     APWR (H) is AM power high
     APWR (L) is AM power low
     FMPWR (H) is FM power high
     FMPWR (L) is FM power low
     SSBPWR (H) is SSB power high
     SSBANL is SSB modulation

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11. Hi Simon

    I asked the question about the Mars mod for the FTDX 101D. The mod on your blog is for the European Version. I’m in Australia, so is it the same. Also is it a straight solder for the jumper or is it like the YAESU FT 891 where you can just short the jumper whilst doing a reset on the radio. Most people say you have to solder the jumper on the ft891.
    Hopefully the Yaesu FTDX 101D is the same.
    Please let me know.
    Thanks Simon
    Kind Regards
    Shane

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    • Hi Shane.

      From my understanding it’s close the point not a temporary bridge.. Australia version I’ve not the modification. Just EU at the moment.
      Regards
      🧙‍♀️

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12. Hi Guys
    Just wondering if anyone has come up with MARS mod extended transmit for the Yaesu FTDX 101d yet.
    Kind Regards
    Shane

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    • Hi Shane

      Yep it’s on my blog

      Regards
      🧙‍♀️

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13. Hi Simon. For the CRT Millenium, my local shop sells a version that is comutable 4W – 15W
    I managed to make it 4W – 8W. Is it possible to make 4 – 15W? How?

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    • Hi Good Afternoon. Maybe they solder across the output transistor and that way loose AM. Standard export mode is 4-8 watts AM/FM

      Only way I guess short the output transistor.

      Regards 🧙‍♀️

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    • Hi, 15W in FM mode…

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14. CRT Xenon service menue : transceiver off / SQ+EMG hold / transceiver on then FM Mod

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    • Turn till 87-89 on the display for 2.0 kHz deviation but anymore than that makes the radio dirty. Normally it sits around 81-83 before moving. It’s being featured here in a few weeks as time not allow it.

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15. My crt xenon has a very quiet modulation on fm uk.
    Is this normal for this cb?
    The mic gain is up on 10 but am told i sound so quiet.
    Can you help?
    With thanks
    David.

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    • Hi David. It can be adjusted in factory mode to make it higher. But these radios are sold in legal limits so are quiet. Sadly I’m not allowed to say how to access the factory mode as many have tried and it’s caused other issues.
      Regards
      🧙‍♂️

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16. Has anyone managed to open up the frequencies on an Alinco DR-438..?

    Can’t find anything anywhere..

    Thanks

    J

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    • It’s unlocked as far as I know via microphone and switch on and change its configuration but I’ve not got this mod as never looked or asked

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    • Thanks for the quick reply..

      So just ptt and switch on ?..

      J

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    • No. It’s like with CRT Micron (Look it up) they’ll be some key pattern to unlock a menu to unlock the radio? That’s according to a Russian site. I don’t know how to access this menu.

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    • Ok thanks Simon..

      I have a go and post my results should I get it to open up ..

      J

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    • Also found this:

      MARS/CAP is covered by a small software file installed via data cable. This then resets the radio. This software is dealer found and can be installed with a payment. The DR-438 is based on AT-588 which is also unlocked via exe file.

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    • Ok great .. I have the data cable .. Just need to get the file ..

      Much appreciated.

      J

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17. Looking for 11 meter conversion for the new president richard. Do you have any info on this? Thanks in advance.

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    • Modifications II Area

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18. New rev 980 Midland. Need a ch. King board.
    Mark is all I can locate for a contact name
    Link?? My cqdx game is lacking in frequency. Lol. Any help in the right direction appreciated
    Thanks

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    • I didn’t know midland made the 980. Channel king contact via Marks YouTube page: https://youtu.be/aLpBsG1O-pY

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19. Good day sir, would you have any info on a realistic TRC 450 mobile fir channel mod? Thank you

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    • Hi David. I think original came with MB8714 but needs MB8719 to expand channels but I’m not sure 100%

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20. Conversion for high power on Stryker sr-25mc

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    • No hello, No please, No thank you so use search it’s on the blog. Just 1 solder blob unlocks low, mid and hi on FM and low and Hi AM

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21. Continues wipe frecventy on Yaesu vr120 D ? No Gaps. Thanks.

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22. Hi Simon
    I am looking to purchase a President Grant premium 11 what advantage would I have by getting the export version (will I lose UK CB channels?..)

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    • Hi Frank. Thanks for the message. In export the Premium comes with the UK channels so you’ll not loose them. You will get Band A-L and UK40 too

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    • Excellent thanks for your swift reply Simon very appreciated
      Regards
      Frank

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    • Hi Frank. As I say in export mode you’ll get the UK band as part of it, higher output power that’s why heatsink and frequencies from 25.6-30.1 guess best idea is buy the radio expanded so dealer has checked out the power etc and all is well. That’s the best idea of all

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23. Hi Simon :
    Nanfone cb 40 . 25to 30 mod 4watt to 12 watt mods . i bought them in Cambodia out of the box 7 bands 38usd i like 29. Meg AM HAM Russian model much more 25 -30 . Please direct me to this mod.is up down microphone posable thank you marty Hurney n2qgu cb is more fun

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