ubitx T10 spectrum
Uploaded spectrum analysis at T10 ..Sample loop 4 turns through core to SA
the absolute levels are uncalibrated however the relative levels should be ok
Each of the two-tone oscillators is set to 100
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Jim Tibbits
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#57350
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Re: ubitx T9 specturm
too bad I can't spell this morning?? ...photo album is "ubitx T9 spectrum"
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Jim Tibbits
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#57349
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Re: ubitx troubleshooting help - low power after irf510 replacement
But.....IRF510 devices have not been made for International Rectifier for
over 20 years.
They licensed the die to a South Korean firm, who had them manufactured in
China.
Not sure where the Bulgarian
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Arv Evans
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#57348
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ubitx T9 specturm
I've taken the liberty of uploading some spectrum analysis photos of rf in T9...two-tone test ..Each oscillator is set to 100 mV level
By
Jim Tibbits
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#57347
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Re: #ubitx. Increasing power output
Bo you got a place holder but no photo kc2ipx
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David Nelson
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#57346
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Re: ubitx manager
Here is the link for the latest uBITX Manager
https://drive.google.com/file/d/1DF0ida-QkXQ12J9XOKE19mmOLr-GKnwo/view
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Jim Myers
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#57345
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Re: uBITx intermittent cw transmit
If you are using the IDE to load the NANO make sure under "Tools" the "Processor:(OLD BOOTLOADER);
rOn
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W2CTX
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#57344
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Re: uBitX CW bandwith
Hello Mickael
Many thanks for your mail. I also have a Sotabeam module filter (SSB/CW)
that I was going to mount with an output LM386 module.
Your editing shows that the LM386 is not absolutely
By
F1BFU - Fr - 79
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#57343
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Re: uBITx intermittent cw transmit
On Fri, 17 Aug 2018 23:19:33 -0700
"jfein2000 via Groups.Io" <jfein2000@...> wrote:
Hi, I'm the other poster who had the same problem.
I think we have been given bad Raduinos. I'll
By
Joe Milosch <zzmiloschxx@...>
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#57342
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Re: Need Help
Good morning Allison,
?
Thanks again for all your help!
?
I need some help with fine tuning the uBITX, I have a Grundig Satellite 750 receiver that I am using to find signals and then using my
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bdunk@...
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#57341
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Re: #ubitx. Increasing power output
Photos section
By
Bo Barry <bobarr@...>
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#57340
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Re: #ubitx. Increasing power output
Thanks for the inputs! ?I'll try them.
I'll ?not just check power out, but also the voltages ?/signals with my scope. And for heat too.?
I'll put info on the nice socket pins in the files
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Bo Barry <bobarr@...>
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#57339
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Re: ubitx troubleshooting help - low power after irf510 replacement
I suspect those so-called IRF510's from Tayda are good enough if you plan to use them for their intended purpose.
Specifically, for use as low speed power switches.
To use an IRF510 at 10 or 20 mhz
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Jerry Gaffke
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#57338
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A modern AD or SI5351/570 for an old dial !
Hi all, I am new here!
I would like to modify the rx of my Heathkit hw-7 , leaving the original front panel and case. I like to use a simple Quadrature switching mixer , thus, eliminating the
By
Pr Rr
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#57337
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Re: uBitX CW bandwith
Derek :?
Regarding the SOTABEAMS DSP filters.
I have a couple of the dual-bandwith ones. The General filter (2.5Khz/300 Hz) is installed in my BITX40
and the CW filter (1khz/300Hz)? in my uBITX.
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Michael VE3WMB
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#57336
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Re: ubitx troubleshooting help - low power after irf510 replacement
It would be nice to know what is and is not good from Tayda as they have low prices and low cost shipping.guress sometimes you git what you pay for...
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ohwenzelph
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#57335
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ubitx manager
Hi Guys:
I am looking for the newest version of the Ubitx manager and where to download it.
Thanks and 73 Ross Bell K7RSB
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Ross Bell
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#57334
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Re: Raduino Clone kit from W0EB-N5IB
#ubitx
Now that I've seen the difference between a uBITX Raduino and the BITX40 Raduino, I checked my stock and I can easily supply my Raduino Clone to the BITX40 users with the 5 pin "Molex" style plug to
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Jim Sheldon
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#57333
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Re: UBITX won't key
On Fri, 17 Aug 2018 23:08:03 -0700
"jfein2000 via Groups.Io" <jfein2000@...> wrote:
Hi, glad to hear I'm not the only one experiencing this problem.
I'm wondering if the ADC in the
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Joe Milosch <zzmiloschxx@...>
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#57332
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Re: uBITx intermittent cw transmit
I just posted this issue as well before I saw this message on topic.? I have exactly the same problem.? Voltage does drop to zero when contacts are closed.? Has anyone been able to debug this issue
By
jfein2000@...
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#57331
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