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That's exactly what it means. The efficiency is dropping as the frequency is increasing indicating that some of the components in the RF chain are not optimal. Again what is needed here is for

Recently on a youtube video it was suggested that Toshiba output transistors might provided a little more power out for the ubitx. Does someone have the actual part number for the transistors being

John, thank you for that extremely well documented information. Makes me much more interested in considering this. I wonder if the efficiency indicates that the circuit design could be improved?

I have done a strait replacement of the IRF510s with RD16HHF1s.? ? Here are the before and after values I got. ? All tests done with uBitx VR1 drive level in the same position of approx 60% of

Thanks for that, I thought it might be something as simple as that cheers and 73 WRS VE7CWS

A little change of contrast potentometer ( JUST 5 DEGREES ON EITHER SIDE OF PRESENT ) would also help orientation. Please on't turn too much. Regards MVS Sarma tchrme@...>

OK could also use longer header pins on the LCD if socketting the NANO.

HI Glen, That decision is up to the builder... If socketing I imagine I2C LCD is going to be needed and/or remote mounting the LCD. 73

sorry, this was meant for Nic not Ian.

Ian, did you plan to have the NANO board as a plug in rather than solder in??? If so I think you might have height issues once the LCD is fitted. glenn

The one supplied has a 4 mm shaft while the encoder has a 6 mm shaft. I found Mentor Knobs that had the same style for both shaft sizes. See my photos posted or my QRZ page. I ordered from Farnell

Hi Simon, Yes, that is the part for mounting the Power Poles. Available from Mouser Australia As are the Hammond cases. https://au.mouser.com/anderson-power-products/ Dave WI6R

I found this on a previous thread. Get the 5V version, they say. Should work fine, they

Check out: http://www.yourduino.com/sunshop/index.php?l=product_list&c=41 Terry King runs the shop and is great to work with and knows his stuff (EE type). Check out his software tutorials, too...they

I had the same problem with my Bitx40. You just need to adjust the display contrast that’s the variable resistor on the back of the display board.

Good evening. I have my uBitx mounted in a cabinet that working well with 12w on 75m and 9 on 40m. The only problem is I went to put it on a shelf on my operating desk and the viewing angle made the

Wonderful, congrats Dave, Wednesday, February 14, 2018, you wrote: DR> Everyone. DR> Last night my uBITX took ti's first breath of life. Even worked a couple of DR> QSOs. Attached are some pictures.

What are the error messages you're getting? Jack, W8TEE To: [email protected] Sent: Wednesday, February 14, 2018 8:15 PM Subject: Re: [BITX20] error on verify raduino ino Jack, ?I assume he

Lots of good info on his blog site that should be the first place you should look: http://www.hamskey.com/2018/02/cat-support-ubitx-firmware-cec-version.html?m=1 It’s like comparing a moped to a

Okay. That wasn’t the method then. Not even sure that’s even an option I was foggy on the details but you create a file called ssh and put it in the boot folder on Sd card. When it finds the file