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Do you have the link to the reference? Thanks.

Hello! I don’t care if it is built or not? ?i just don’t wanna wait for it to arrive from India

Dave Once you know the probable frequency of those spurs and harmonics it should be rather easy to determine their presence or absence, and to measure the level. If you have a general coverage

There is a warning on the QRP labs site NOT to use the BPFilters on LPF? Power amp clean up duty......? Timothy E. Fidler : Engineer BE Mech(1) Auckland , NDT specialist AINDT UT /RT3 , MT2 CB

I'm hoping that we can find a cheap way to measure for spurs.? I built the 7mhz band pass filter based on the QRP labs kits one and put it on the antenna for testing.? I think it cleaned up some of

If you still have it, I’ll take Scot WB7AVU Sent: Sunday, January 27, 2019 1:00 PM To: [email protected] Subject: [BITX20] New uBITX V4.0 For Sale ....still in the box $100 This is a new and

Its from the display/MPU subsystem and likely due to power issue or ground loop. Allison

Perhaps a bigger reservoir cap to the screen supply? Or maybe even an active filter (emitter-follower)? 73 de ZL2DEX

Hi Rich, I have also had a buzzing noise in my audio. I use a Nextion 5" screen. It was powered from the common LM 7805 5 volt supply which is mounted to the radio chassis for a heat sink. I

Instructions for the CEC firmware with Nextion is here: http://www.hamskey.com/2018/06/ubitx-with-nextion-lcd-cec-firmware.html The original question was how to switch between USB and LSB.? The

Right... in the audio, there's a humming and a clicking.? They're two sounds.?? I do indeed have a Nextion screen with CEC Chris.? Unplugging the screen does indeed remove the humming

I think we are making this to hard. Just press on the main tuning knob, scroll thru settings with the knob. When you see LSB, press knob it should switch to USB. Its okay to enjoy this rig with or

Patrick, is your question about the BitX40 or about the ubitx? Which radio do you have? 73 Allard PE1NWL

Fine, if you are already using Lee's firmware with nextion. All the best.

Hi Rich, sounds like Nextion display with down regulated brightness. Do you use CEC-software with Nextion display? 73 DF1EA Chris!

Hi Pop, Please let us know when they're available! 73, Bob KB1TEK

Patrick, Not sure if the article mentioned it, but the nextion screen is a real step saver. Touch and you are there.

Patrick , Reach hfsignals.com Read thro what all farhan had ro say. Just puzh the encoder, it would ask you " band... ." Now justurn the encoser it would take you to various sub menusonce you

The amount of information on this radio is amazing. I hadn't found the section you just linked me. Thanks. Looks like I will need a few mods, including software upgrade in order to force a switch

Hope this link would help you , Patrick http://www.hfsignals.com/index.php/ubitx-circuit-description/ All the best sarma vu3zmv wrote: