Re: [SoftwareControlledHamRadio] V010 vs V011
Well Gordon, we meet again¡ Yes after suffering through the uBITx project with a bunch of people who really wanted to correct many of the design deficiencies (like the pre and PA section for
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K9HZ
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#2570
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Edited
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Re: [SoftwareControlledHamRadio] V010 vs V011
It¡¯s easy to see things to criticize. The trick here would be to create a upgrade kit that would make with the design and allow a better amplifier to be daughter boarded. That would give a great
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Gordon Gibby KX4Z
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#2569
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Re: [SoftwareControlledHamRadio] V010 vs V011
This was not directed at the T41. Rather the likes of the Bitx family. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton,
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K9HZ
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#2568
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Re: [SoftwareControlledHamRadio] V010 vs V011
The T41 design was a compromise on several fronts ¨C primarily price vs performance., hence the situation with the power out. T41 is designed to be a teaching tool with flexibility and modularity. At
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Albert Peter
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#2567
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Re: [SoftwareControlledHamRadio] V010 vs V011
Thanks Dave. Yep, that little thing is a real gem. I designed and built it because I just can¡¯t stand hobby-ish radios that put out 40 watts on 7 MHz, and then 3 watts on 28 MHz. It just means the
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K9HZ
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#2566
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Re: [SoftwareControlledHamRadio] V010 vs V011
Bill, this week I assembled two of the 20Wt amplifiers and they work great. I was sweeping them at about 5watts with my NanoVNA and a 49dB attenuator (calibrated nano with the attenuator chain). I
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D Solt
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#2565
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Re: [SoftwareControlledHamRadio] V010 vs V011
I also have a conference this week in Denver so things will pause for a few days on my end. I did send schematics to Al to review yesterday though so trying to multitask and get stuff out ASAP. I did
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K9HZ
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#2564
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Re: [SoftwareControlledHamRadio] V010 vs V011
-------- Original message --------From: "John Melton via groups.io" <john.d.melton@...> Date: 2023-10-07 10:01 a.m. (GMT-05:00) To: [email protected] Subject:
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Wayde VA3NCA/AD2GX
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#2563
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Re: Learning while on vacation
FWIW Flex actually split the processing between their fpga and TI DSP chips (TMS320). See this video for some more info: https://www.youtube.com/watch?v=eE_c-dSEu4E
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Dave VE3LHO
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#2562
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Re: 20w rf amp - need help
See below: Jack, W8TEE
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Jack, W8TEE
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#2561
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Re: 20w rf amp - need help
Bill: I am responding this way as I can't read your email address. The ending is blocked and I don't know how to get around that. I became a ham in Dec 2021. Passed Basic with Honours. So I am very
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Bruce VA3BKI
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#2560
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Re: 20w rf amp - need help
Bruce, you can send eMails to bill@... <mailto:bill@...> I get them 24/7 Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big
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K9HZ
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#2559
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K9HZ 20W PA Kits
I ordered another 200 boards for the K9HZ 20W PA last week. they will be here next week. I have about 5 kits left but hope to have at least 100 kits ready just after CQWW. Dr. William J. Schmidt -
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K9HZ
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#2558
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Re: 20w rf amp - need help
Picture please! I¡¯ll get you situated! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C
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K9HZ
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#2557
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20w rf amp - need help
Don't know how to send this to one person as K9HZ probably has to answer this. In winding L2 I find I cannot get 7 turns done I am a little short - maybe not strong enough to pull it tighter. My
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Bruce VA3BKI
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#2556
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Re: Learning while on vacation
The superscalar aspect of the pipelines was when they added additional execution units to handle branch prediction so that they could compute both paths. As they added more simultaneous instructions
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Steve Clark
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#2555
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Re: Learning while on vacation
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Steve Clark
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#2554
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Edited
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Re: Learning while on vacation
Somewhere I have an article about the DSP/CPU versus FPGA wars of the late 1990s/early 2000s. FPGA won!? Even though FPGAs clock at much slower speeds, the ability to transform data in a single clock
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Greg KF5N
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#2553
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Re: Learning while on vacation
*** My understanding of "hyperthreading" is that it's just multiple sets of CPU registers. I did a project with an 8051 back in the 80's. The '51 had two sets of registers aka "register banks" that
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jerry-KF6VB
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#2552
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Re: Learning while on vacation
Also, here is the originator of that Trenz ¡°teensy¡± style fpga board that is manufactured by Trenz in Germany (I think): https://blackmesalabs.wordpress.com/
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Steve Clark
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#2551
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