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Xiegu G90 (repost in own thread)

Discussion in 'CB and Export Equipment and Accessories' started by magnuman, Sep 25, 2019.

  1. magnuman

    magnuman Well-Known Member

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    It seems to tune just about anything but the radiated power decreases as more power gets wasted (lost in tuner) tuning a non resonant antenna. I have had a great time on 40m with an resonant inverted V. 15w will get you round the world on 40m if conditions are right.


     

  2. magnuman

    magnuman Well-Known Member

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    There might be a work around to operate the G90 out of band without cutting the diode. It is a bit clunky and have not had much time to examine it further. I was not aware that I had the G90 in split mode and was wondering why the swr was off the scale on 40m. Got a phone call. 'Stop transmitting your ham call on ch 35' plus a few more kiwi expletives about my operating habits. I looked at the display. Ch 35 was on vfo B. Well well well. Fancy that. Bother Me!
    If you are in Split mode
    And vfo A is in band
    And vfo B is out of band
    You will TX on vfo B.
    Just need to hit AB button to rx on B after you stop tx.
    Hey..I said it was clunky!
    Both vfo' s out of band and tx error and no tx.
    I am posting this so others don't make the same mistake and tx out of band.
     
    Shadetree Mechanic and CB590 like this.
  3. CDX8412

    CDX8412 Active Member

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    That workaround does seem to TX out of band, but as you say, it is a bit clunky.

    I have had a G90 for several months and enjoy it, but it is not perfect. The biggest issue I have with mine is that I occasionally lose my receive, but when I cycle through the preamp button, the receive returns. Not a big issue, but I guess it is something unique to my radio ? Perhaps I should reach out to Radioddity, as that is where I got it, before the warranty period expires.

    Also, the NB seems to have no effect as far as I can tell, and you need to adjust the NB width as well, or you can lose your receive.

    I did update firmware to 1.7 shortly after it was released, and I have no problems, but I don’t know if much is different. Maybe the CW decode is better, but it is touchy. You have to tune it precisely, and QSB and such will cause a loss of decode. But it is a cool feature in a relatively low priced HF rig (I paid $450 with a 10% off deal from Radioddity over the Memorial Day holiday).

    I currently have a terrible antenna for HF in the house...just a 50’ length of 12 ga. wire wrapped around the room, for shortwave monitoring. The internal tuner will tune it (SWR > 5:1), but I don’t bother trying to use this for TX, as I have some portable HF antennas for that.

    I do enjoy the spectrum scope, and have been using this radio more than my FT-891 for monitoring the HF bands. My eyesight is not so keen at 60 years old, but the color display helps out a lot, versus the monotone display of the FT-891. The lack of an external speaker port is a bit of a drag, but I do use earbuds and appreciate the switch (press volume knob in) from internal speaker to headphones. And in the house, I do remote the head with a DB-9 cable. That is a nice feature as well.

    I had owned the original Xiegu X1M HF rig many years ago, and was impressed with it back then. I was even able to upgrade my original model to the later model with the nicer display, by replacing the front panel. I did sell the radio, but it did work and I was impressed with Xiegu’s commitment to their product, and the continued development of their product line. No, it is not a KX3, but the G90 is a decent little radio for the money.
     
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  4. Mudfoot

    Mudfoot Sr. Member

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    When you pick it up, it doesn't feel cheap. Got some heft to it.
     
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  5. 543_Dallas

    543_Dallas Sr. Member

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    That's a good sign. Hopefully it's not like the ranger sra-198 mic with a lead slug in it.
     
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  6. Mudfoot

    Mudfoot Sr. Member

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    But, that's a decent mic.
     
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  7. Mudfoot

    Mudfoot Sr. Member

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    Dave,

    What are you seeing on AM output? Mine is a backwards swinger.
     
  8. magnuman

    magnuman Well-Known Member

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    20w but have not used it other than check the carrier. I have no doubt it has backward swing and the carrier should be set about 8w and swinging up to 20. If it can do 20w carrier we should be able to see 40 or 50w on SSB one would think...
     
  9. magnuman

    magnuman Well-Known Member

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    I just filled the back of the microphone with hi density foam to see if it reduces the bassy-ness of the SSB tx audio. Some "in radio" means of adjusting the TX audio would be useful as the compressor doesn't seem to be doing much. I have had to reduce the mic gain to 12 for my voice so maybe the compressor will have more effect. Still have a lot of testing and learning to do. But the radio is delivering on the receive side.
     
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  10. Mudfoot

    Mudfoot Sr. Member

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    No matter what carrier level and mic gain. It rolls back to almost nill. Haven't check lower bands yet. Unless I have settings wrong or defective unit, it looks like a TURD on AM.

    No big deal. It's a SSB unit for me. Made a few contacts on 10 meters today. Very weak signals, but I pulled them out. I had favorable reports.
     
    #25 Mudfoot, Sep 30, 2019
    Last edited: Sep 30, 2019
  11. magnuman

    magnuman Well-Known Member

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    Exactly, and you got back with 20W?
    That is the wonder of this little radio. It can work those weak signals.
     
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  12. Mudfoot

    Mudfoot Sr. Member

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    Rearrange the front brackets to create front legs. 71075795_10215104448944672_2535490753002471424_n.jpg
     
  13. Mudfoot

    Mudfoot Sr. Member

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    Much better English manual.
     

    Attached Files:

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  14. magnuman

    magnuman Well-Known Member

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    I did something Similar using a plastic 'stick on' wall hanger. Radio still fits in the box but I have to put it in upside down.
    It has the advantage in that it can be 'hung' in a somewhat vertical position if something suitable available.
    Interested to get the details on the bail you bought from China as that would be the better all round option. 20191002_131649.jpg 20191002_131727.jpg 20191002_131820.jpg
     
  15. 543_Dallas

    543_Dallas Sr. Member

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    Is that rust on the screw heads?
     
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