I think the CEC software reverts to ham bands, if I understand your issue. However, with Memory manager you can set the lower end of the 160M band to 1400 and it probably will work OK. Those band edge settings are adjustable in MM.
=Vic=
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Hello, ? ? I use :?? ? ? or:?? ? ? Both tested and works very good. ? Good luck, ? ? Herman Scheper?? PA0BAB ? ? ?
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Van: [email protected] < [email protected]> Namens sq6poh@... Verzonden: zaterdag 9 mei 2020 08:57 Aan: [email protected]Onderwerp: Re: [BITX20] A Full Screen 3.5 #nextion ? A friend or someone may have the charge for Nextion 3.2 basic (400X240) but for soft CEC v1.200 I am trying to convert a file from 2.8 but the main screen is quite complex.
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Hello
A friend or someone may have the charge for Nextion 3.2 basic (400X240) but for soft CEC v1.200
I am trying to convert a file from 2.8 but the main screen is quite complex.
Thank you
Karol SQ6POH
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Jumper? 
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Re: Okay last time questions and then i quit
Even if O P quitted, the heafing wont quit and it is a paradox.?
On Sat, 9 May 2020, 9:50 am Rene, < rmvanb@...> wrote: Okay thx to all, and thx for trying helping me out. The receiver i use, is the yupi, my house got 3 floors,radio on top floor and yupi downstairs, so no interference. The audio seems to carry some signals with it, don't know where from??, nothing near, exept the computer,but i tryed it with computer of and on. Also power supply, now i have a standard 13.8 volt 8 A supply but i also used 18650 batteries....same efforts.? Also pulled the baofeng mike out, didn't do his work, so putted new electret in it...litle better but still inteference like a hard drill,no like 10 hard drills. I'll keep in mind Herman and Erwin. I think Herman woold be better in the Netherlands, i'live in Hoofddorp?. But for now, corona is still here so time is finished and i have to paint the house in and out. So thx all for thinking with me, i keep on reading the forums. Reagrds,
Rene
Netherlands
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Re: Okay last time questions and then i quit
Okay thx to all, and thx for trying helping me out. The receiver i use, is the yupi, my house got 3 floors,radio on top floor and yupi downstairs, so no interference. The audio seems to carry some signals with it, don't know where from??, nothing near, exept the computer,but i tryed it with computer of and on. Also power supply, now i have a standard 13.8 volt 8 A supply but i also used 18650 batteries....same efforts.? Also pulled the baofeng mike out, didn't do his work, so putted new electret in it...litle better but still inteference like a hard drill,no like 10 hard drills. I'll keep in mind Herman and Erwin. I think Herman woold be better in the Netherlands, i'live in Hoofddorp?. But for now, corona is still here so time is finished and i have to paint the house in and out. So thx all for thinking with me, i keep on reading the forums. Reagrds,
Rene
Netherlands
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 Good morning, version 6.3.1
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What firmware are you using in the nano?
Barry , I did but only with white screen, I wonder if I still need to place the resistors , which I did not after the jumper , or maybe the ili9341 needs its own driver like the nextion display , thank you for your reply?
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Barry , I did but only with white screen, I wonder if I still need to place the resistors , which I did not after the jumper , or maybe the ili9341 needs its own driver like the nextion display , thank you for your reply?
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My code won't play nice with a v4 setup. It's only for v6.
Reed
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Use Reed's latest v1.5.0 Sorry, I do not have the link but message # 78670 has it.
Quick question about changing and saving mode for desired frequency. When the unit is turned on, it always goes to program default of 7.150khz, LSB on BFO A.
I have tried to save a local AM radio station frequency of 1.410khz for convenience. My radio is typically enjoyed for listening the lower band stations.
Have tried to get on the air in CW mode. No joy with the 700hz tone slipping the frequency up or down in CWU or CWL by that much. Used separate xcvr to check transmit frequency, and it was off, and not confident using it on the air.
I've tried to save this frequency (1.410khz) and mode USB) with the CEC program. It would not transfer it or USB mode to memory the unit for use later. As a work around saved the frequencies and mode into memory. Is there a way to have the desired frequency showing at boot up, without twiddling the dial to the saved frequency selections? Thank you in advance for assistance.
73,?
Wes
KH2EE
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Barry , this is before , I did use a magnifier, thank you for your reply.?
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Re: Separate LPF for a uBitx
I used 4 filters to cover 80 to 10 meters. There are two factors at work here. First, you notice, the driver and the PA are push-pull. This arrangement produces fairly low even harmonics. Hence, a 7 Mhz signal will have 14 mhz signal about -30 db down while the third harmonic at 21 Mhz will be only 15 db down. Thus, a filter cut for 7 and 10 mhz tha shows -20 db attenuation can work for both bands. Second, a opposed to the usual two section LPFs, we have used three section LPFs which makes them more aggressive. ?In effect, there is no free lunch. There are twelve sections in all (4 LPFs of 3 sections each). We could have organized them as 6 LPFs of 2 sections each. They would have led to 4 more relays and used up another 4 Arduino lines that would have needed more digital hardware. We hams are averse to digital ICs on the analog boards. These sre subjective choices. - f
On Fri 8 May, 2020, 9:50 PM Mark - N7EKU, < n7eku@...> wrote: Yes,
However careful filter design is needed when using just four filters.
The obvious reason is that you still need a good cutoff for the lower frequency band.
Not so obvious is that you need to also have a reasonable input impedance, because the input impedance can vary a lot as you move away from the filter design frequency.? This can result in lower or higher than expected power output for the lower frequency band.
73,
Mark
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Re: Separate LPF for a uBitx
Hi Mark,
Yes. Exactly why I put stars around *good* when I said *good* filter.
73,
Bill KU8H
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On 5/8/20 12:19 PM, Mark - N7EKU wrote: Yes,
However careful filter design is needed when using just four filters.
The obvious reason is that you still need a good cutoff for the lower frequency band.
Not so obvious is that you need to also have a reasonable input impedance, because the input impedance can vary a lot as you move away from the filter design frequency.? This can result in lower or higher than expected power output for the lower frequency band.
73,
Mark
--
bark less - wag more
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Re: Separate LPF for a uBitx
Yes,
However careful filter design is needed when using just four filters.
The obvious reason is that you still need a good cutoff for the lower frequency band.
Not so obvious is that you need to also have a reasonable input impedance, because the input impedance can vary a lot as you move away from the filter design frequency.? This can result in lower or higher than expected power output for the lower frequency band.
73,
Mark
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Quick question about changing and saving mode for desired frequency. When the unit is turned on, it always goes to program default of 7.150khz, LSB on BFO A.
I have tried to save a local AM radio station frequency of 1.410khz for convenience. My radio is typically enjoyed for listening the lower band stations.
Have tried to get on the air in CW mode. No joy with the 700hz tone slipping the frequency up or down in CWU or CWL by that much. Used separate xcvr to check transmit frequency, and it was off, and not confident using it on the air.
I've tried to save this frequency (1.410khz) and mode USB) with the CEC program. It would not transfer it or USB mode to memory the unit for use later. As a work around saved the frequencies and mode into memory. Is there a way to have the desired frequency showing at boot up, without twiddling the dial to the saved frequency selections? Thank you in advance for assistance.
73,?
Wes
KH2EE
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Re: Separate LPF for a uBitx
Hi,
The real reason. Once upon a time the ham bands were harmonically related. 80 meters is approximately the fist harmonic of 160 meters. 40 meters is approximately the first harmonic of 80. Etc, etc, etc right up through and including 10 meters. A filter for each band was *required*. The low pass filter for 80 meters cannot reduce 80 meter output at all. *Therefore* it will be completely useless for 160 meter operation and 160 meters harmonic output. Etc, etc, etc right on up through 10 meters.
More recently we see the 60 meter band and it is NOT the harmonic of 80 meters. A *good* filter for 60 meters will also reject harmonics from 80 meters. Another filter just for 80 meters is not needed. The same thing can apply to 60/40, 40/30 and more such combinations right on up through and including 10 meters.
I hope this helps.
73,
Bill KU8H
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On 5/8/20 8:35 AM, Ravi Miranda wrote: Hi all,
If I was to add an external PA to a homebrew uBItx, should the LPF
have the conventional 6 band version or should the LPF follow the
similar design for just 4 groups?
Any thoughts on why the 4 group version was chosen rather than the
standard design? Is this something to do with the uBitx being double
conversion rather than an exciter with a single conversion stage?
Thank you for your time.
Ravi/M0RVI
--
bark less - wag more
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Darwin, the picture shows the pads but no jumper. Is this is a 'before' you did the jumper picture?
Barry
hi, jumper placed on J1 , still with white screen, thank you. 
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Vic WA4THR
Darwin EI4KX