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Re: compiling ubitx ver 4.3
In general no. ? Compilers generate warnings when you haven¡¯t use the brightest code. ??
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when i compile ver 4.3 i get a number of warnings although the compile appears to work it says compile done
the warnings seem to be about conversions fro char literal to char
is thsi a problem
terry gm4dso
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when i compile ver 4.3 i get a number of warnings although the compile appears to work it says compile done
the warnings seem to be about conversions fro char literal to char
is thsi a problem
terry gm4dso
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I haven¡¯t even build my uBitx yet. Maybe in the winter. Where can I have a look at these LPF¡¯s from Hans. It¡¯s not a killer for me. I¡¯m sure I can still have fun with the radio, it will definitely be a digital mode radio for FT8 for sure so as long as it has a few uses, I¡¯ll be fine. I¡¯m not looking for perfection.?
Joe KD2NFC?
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On Aug 29, 2018, at 12:30 PM, Brent Seres < brentseres1@...> wrote: So if I buy LPFs from Hans, which bands would you recommend? Given that the even harmonics are fairly well attenuated, I'm assuming I could use 1 LPF for 2 bands (ie 40/ 30, 20/17)?? Given the current solar flux disaster,? I probably have several years to solve 15, 12 and 10. Alternately, the BPFs for each band.? I'm not ready to give up yet!
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Re: UBITX V3 TX GAIN VARIATIONS
Jim,
Try this input to q90 Isolate the other stuff from loading the input to the amp,
output at T11 before the filters (cut trace).??
Doing that requires tracking generator but yyou can sweep it by hand?
using a any RF generator (measure direct then measure through).
Run that at 3db/division to see the droop is power and gain.? When I've done
that on many samples they all sag about 10-12db from 3-30mhz.? Its not the
IRF510 its all in the stages before it.? The IRF510 can be flat but in that
design it also sags about 2-3db because, long leads, transformers not
optimum, board layout.
Allison
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
Rather than spend a lot of time wondering if we are for or against the creation of subgroups, can we be informed about uBitx compliance in transmission. In the meantime I still do not know if I can use my uBitx v3 (bought while mounted at Farhan) in broadcast on all the bands without disagreeing with the authorities. What changes must be made to comply? I will use my uBitx in issue and if I have problems with the French regulatory authorities I will notify my seller.
Sorry. Gilles - F1BFU / Fr
Le?mer. 29 ao?t 2018 ¨¤?19:00, Joe Puma < kd2nfc@...> a ¨¦crit?: Can we have a sub group for people who want to make requests to create sub groups? I think that will solve the problem.?
Joe KD2NFC? This is the last place I want to hear about end fed wire antennas¡ ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Christopher Miller
Sent: Wednesday, August 29, 2018 11:28 AM
To: [email protected]
Subject: Re: [BITX20] Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other? ? Seriously? Lets advocate for splitting the group up but if you can't get help its the hunger games. No division is required, just the ability to use a search engine.? -- ¡_. _._
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
>: lurker mode off What is to prevent someone from creating a new group for uBITX? Is it absolutely necessary for "various BITX projects" to be in the same group? It only adds to the confusion factor. At the very least each email subject should preface content of email with uBITX:, or BITX20: ; or BITX40:
Technically,? coming from a Navy background, BITX20 has "plank" ownership of subject mater here on this mailing list. So it is up to the owner and/or moderator to decide how to proceed. ? Al, N8WQ >: lurker mode on
On Wed, 29 Aug 2018 12:02:54 -0400, Kunjani Ol <loot@...> wrote:
I have also stopped reading most posts, and not replying.
Seems like most posts are made by the same few people.?
Some of them are thoughtful and put ubitx in the title/post, a couple of of them think they are too special to do anything like that.
This group to me is a total mess. I have a?¦Ìbitx. I am not interested in the 40? or the 20!!!!
The fact that many people would have to be moved over or rejoin a meaningfully named group just illustrates the extreme short shortightedness? in the first place.
Of course the chances are that no one is interested in what I do or what I have found with the four?¦Ìbitx I have, we'll never know as it is at the moment.
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
Can we have a sub group for people who want to make requests to create sub groups? I think that will solve the problem.?
Joe KD2NFC?
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On Aug 29, 2018, at 12:52 PM, MadRadioModder < madradiomodder@...> wrote: This is the last place I want to hear about end fed wire antennas¡ ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Christopher Miller
Sent: Wednesday, August 29, 2018 11:28 AM
To: [email protected]
Subject: Re: [BITX20] Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other? ? Seriously? Lets advocate for splitting the group up but if you can't get help its the hunger games. No division is required, just the ability to use a search engine.? -- ¡_. _._
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Re: Nextion 3.2 for CEC 1.097
#ubitx
John
Welcome to learning - hi hi I am stumbling through also
If you reduce the grid size on that page say by half for x and y it will compile. I don¡¯t remember the I¡¯d number but it appears in the upper left corner in the grid. Select it an the attribute page will come up. Go to the bottom and change the h and w values
Lots of other things need fixing but am encouraged others are working this also.?
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On Aug 29, 2018, at 12:30 PM, John Lauber < jlauber@...> wrote: Hi, Nikos¡ªthank you.? Did you try to compile this?? I¡¯ve tried it and get the following output: ? Global Memory:1496 Total size of picture:2,483,702 Total size of font:033,225 Page:px Memory Occupied:1496+1140=2636 Page:pm Memory Occupied:1496+244=1740 Page:pf Memory Occupied:1496+764=2260 Page:pc Memory Occupied:1496+504=2000 Error: Page:padc Error! Memory overflow:1496+2848=4344 Error: Compile failed! 1 Errors, 0 Warnings, ? Looking at page padc, I can¡¯t see what the problem is.? I tried reducing the size of the waveform by a few pixels, and that didn¡¯t help.? I¡¯m really stumbling my way through this Nextion editor, so am operating largely in the blind!? Any ideas? ? 73 WI6P John ? From: [email protected] <[email protected]> On Behalf Of SV9CVJ Nikos
Sent: Wednesday, August 29, 2018 07:26
To: [email protected]
Subject: Re: [BITX20] Nextion 3.2 for CEC 1.097 #ubitx ? Hi John
I tried to do something on editor but I'm not sure about the result , pages 3,4,7,8,9,10 .
Nikos
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Re: Right-sided relay harmonic attempted fix for v3/4 ubitx
Allan, ?i used BNC attenuators to calibrate between S 7 1/2 and 25 over,?
It was clearly 12 DB per S unit between Sseven and S9. ?Six DB attenuator change changed it half an S unit. ?Between S9 and 25 DB over it seem to be relatively correct with the DBS.?
I have not calibrated it below S7
I don¡¯t have a easy to use stepped attenuator. ?So I had to do this by changing in and out fixed attenuators. ?
On Aug 29, 2018, at 10:49, Alan de G1FXB via Groups.Io < g1fxb@...> wrote:
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Gordon,
Good to see you are making positive progress.
Re:- the before & after figures
I don't know the Icom 718, as a background just in case someone else tries to repeat your tests. It's normally quoted as 6dB per S point.
Pretty much all radios will be different. Its a repeatable test to the same reference value on the meter on the same radio but not necessary beyond that, the meter reading may be non-linear etc.
Alison suggested the stepped attenuator approach to bring the fundamental down to the same indicated level on the meter as the harmonic, the amount of added additional attenuation indicates the harmonic reduction.
The measurement accuracy is then transferred to that of the attenuator,? and is more easily characterised.
It is also transferable to other peoples measurements regardless of method, by radio or a spectrum analyser etc.
Can Alison comment?
Alan
On 29/08/2018 03:24, Gordon Gibby wrote:
Able to charge that battery significantly and proceed with tests.
All of these have a homebrew 50 dB tap on a Heathkit Cantenna, and then a 20dB attenuator at the input of the ICOM 718.? ?Previous measurements have suggested that between S7 and S9,? ?an S unit is approximately 12 DB.
Presented witll be the BEFORE/AFTER? ?S unit measurements where before is the relatively STOCK uBitx and the AFTER is is with my external daughterboard, with basically unshielded wiring.
All measurements are for CW (because this is where the unit had the most problems)
Power is estimated from a Micronta cheap SWR/power bridge built for CB'ers many many years ago.??
FREQ? ? ? PWR? ? ? ?FUNDAMENTAL? ? ? ?2ndHArmonic? ? 3rdHarmonic? ?4thHarmonic? ? 5thHarmonic? ? ?6thHarmonic? ? ?7thHarmonic
3.505? ? 5 W/5+W? S9+30/S9+30? ? ? ? ? ?S7.5 / S7? ? ? ? ? ?S8.5 /? S6? ? ? ? S0 /? ?S0? ? ? ? ? ?S8 /? S1? ? ? ? ? ? S0 / S0? ? ? ? ? ? ? S8.5 / S8? ??
(so on 80 meters, the 3rd and 5th harmonics were greatly attenuated, and the 7th lost maybe 6 db)
7.005? ?2.5/3.5W? ?S9+30/S9+30? ? ? ? ? ?S0/ S0? ? ? ? ? ? ? ?S8.5 / S7? ? ? ? ?S5.5*/S0? ? ? ?*=wavering
(so on 40 meters, harmonics went? down by huge amounts
9.995? ?1.5/1.5 W? S9+30 /S9+30? ? ? ? ? S0 /S0? ? ? ? ? ? ? ?S9 / S5 or less
(so on 30 meters, the 3rd harmonic was basically demolished)??
In previous testing on 14 MHz, I cant go any farther than the 2nd harmonic and it was S0 (no reading) so not much for me to work on profitably there...and that is the filter that I damaged.
This looks overall, like a huge success.? ?The only oddity is the 7th harmonic of the 80 meter signal (why??)? ?but even it may be down 42 db.? ?On these bands, my crude testing indicates that even CW now either passes with flying colors or is very very close
to it.? ?If I shield or even twist a ground around the INPUT (red in the photographs) wire it may get better.
Cheers,
Gordon Gibby
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
This is the last place I want to hear about end fed wire antennas¡ ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Christopher Miller
Sent: Wednesday, August 29, 2018 11:28 AM
To: [email protected]
Subject: Re: [BITX20] Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other? ? Seriously? Lets advocate for splitting the group up but if you can't get help its the hunger games. No division is required, just the ability to use a search engine.? -- ¡_. _._
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
OK? !
?let's just continue as we are
if/ when it reaches critical mass it just explodes.
ubitx.net is already the goto if that's the prime interest?
Alan
On 29/08/2018 17:27, Christopher Miller
wrote:
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Seriously? Lets advocate for splitting the group
up but if you can't get help its the hunger games.
No division is required, just the ability to use
a search engine.?
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Re: Odd Raduino, How do I Connect it?
#bitx40
I have same raduino, when looking at the back what orientation should the cables be? AKA what colors to what pins.. Anyone have a pic of their raduino?plugs so I can see.. I blew my voltage reg on my raduino plugging it in wrong, making sure I dont make same mistake 2x?
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Re: Nextion 3.2 for CEC 1.097
#ubitx
Hi, Nikos¡ªthank you.? Did you try to compile this?? I¡¯ve tried it and get the following output: ? Global Memory:1496 Total size of picture:2,483,702 Total size of font:033,225 Page:px Memory Occupied:1496+1140=2636 Page:pm Memory Occupied:1496+244=1740 Page:pf Memory Occupied:1496+764=2260 Page:pc Memory Occupied:1496+504=2000 Error: Page:padc Error! Memory overflow:1496+2848=4344 Error: Compile failed! 1 Errors, 0 Warnings, ? Looking at page padc, I can¡¯t see what the problem is.? I tried reducing the size of the waveform by a few pixels, and that didn¡¯t help.? I¡¯m really stumbling my way through this Nextion editor, so am operating largely in the blind!? Any ideas? ? 73 WI6P John ?
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From: [email protected] <[email protected]> On Behalf Of SV9CVJ Nikos
Sent: Wednesday, August 29, 2018 07:26
To: [email protected]
Subject: Re: [BITX20] Nextion 3.2 for CEC 1.097 #ubitx ? Hi John
I tried to do something on editor but I'm not sure about the result , pages 3,4,7,8,9,10 .
Nikos
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So if I buy LPFs from Hans, which bands would you recommend? Given that the even harmonics are fairly well attenuated, I'm assuming I could use 1 LPF for 2 bands (ie 40/ 30, 20/17)?? Given the current solar flux disaster,? I probably have several years to solve 15, 12 and 10. Alternately, the BPFs for each band.? I'm not ready to give up yet!
|
Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
Seriously? Lets advocate for splitting the group up but if you can't get help its the hunger games.
No division is required, just the ability to use a search engine.?
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
Indeed !
Thats a QRP Labs stamp collecting in a QRP Labs specific group!
Who is going to be first to get the other two denominations of
stamp?
Oops, wrong group.......
Alan
On 29/08/2018 17:04, Doug W wrote:
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Re: Can we start using SUBGROUPS? uBiTX, biTX40, QRPKITS, Original BiTX20, Homebrew, Other?
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Alan de G1FXB
Brent Seres/ VE3CUS
MadRadioModder
