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Re: CONTEST!!!! New Board Naming Contest
#ubitx
How can we suggest a name before the design is final?
Because some believe that the board¡¯s nature will determine the correctness of its name. |
Re: uBitx
Vince Vielhaber
The audio chip is the 8 pin dip near the connector. I also have a batch 3 board (/3) and it has the dreaded WX chip. Those particular chips had been failing due to a bad run of parts. If you search the archives for WX you should be able to find info on what to use in place of it either as a sub or a better brand. I ordered some from Tayda and haven't heard any complaints about that.
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Vince. On 05/15/2018 05:40 PM, allen west wrote:
I looked the board over closely and did not see a WX anywhere. Written in ink beneath the audio connector is U6666/3. I don¡¯t know if that is the serial number or not. Aggravating because I never got the first signal. Was headed to 10 MHz when it quit. --
Michigan VHF Corp. |
Re: uBitx
I looked the board over closely and did not see a WX anywhere. Written in ink beneath the audio connector is U6666/3. I don¡¯t know if that is the serial number or not. Aggravating because I never got the first signal. Was headed to 10 MHz when it quit.
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Will try to do some trouble shooting. Al KB4RA On May 15, 2018, at 4:29 PM, Vince Vielhaber <vev@...> wrote: |
Re: [Bitx-20] special session at hamfests to teach the neophytes re latest firmware
Jack Purdum
I'd actually enjoy that. Talk with the FDIM people to see if they have any interest. Preston Douglas (pdouglas12@...) is the President of the group and would likely be the one to contact. However, I would NOT do it now, as FDIM starts in two days and I would imagine he's buried in details right now and would likely say No to anything right now! A week from now might give him enough time to unwind from the conference.
Jack, W8TEE
On Tuesday, May 15, 2018, 4:23:54 PM EDT, David Wilcox via Groups.Io <Djwilcox01@...> wrote:
You gentlemen seem to have such a great time discussing all of these changes and ?what should/could be a standard load from the start. ?I have been studying my Arduino starter kit and one of Jacks books but still have a long way to go. Possibly next year at FDIM and at Hamcation, Hamvention and even Ozarkon one or two of you could put on a seminar about this issue and maybe even help some of us upgrade our rigs (both of them) in a special session. ?We would bring our radios, laptops if necessary, etc., and go step by step installing the latest code and then have an explanation on how to make it work. ?I would even pay a fee for such a class. ?It could be like in my past medical conferences where it was early in the morning before the rest of the session started or during the afternoon when the rest are out seeing the sights. ?These sessions were called "special interest groups". I just need to see someone do it the first time (load in new code) with a step by step explanation and then the light might go on. Is something like this possible? Dave K8WPE,_._,_
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Re: Variable IF
¿ªÔÆÌåÓýYou can vary the center frequency a little bit its better to vary the IF frequency and leave the IF filter fixed.?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: email:??bill@... ? On May 15, 2018, at 2:09 PM, w1eat via Groups.Io <w1eat@...> wrote:
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Re: Core for Output Transformer
¿ªÔÆÌåÓýThat is what i used too.?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: email:??bill@... ? On May 15, 2018, at 1:15 PM, ajparent1/KB1GMX <kb1gmx@...> wrote:
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Re: Should we adopt the KD8CEC firmware?
¿ªÔÆÌåÓýI think you are confusing the concepts of ¡°beta testing¡± and ¡°support¡±. ? Clearly this group is the support for the firmware.?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: email:??bill@... ? On May 15, 2018, at 9:15 AM, Tim Gorman <tgorman2@...> wrote:
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Re: Should we adopt the KD8CEC firmware?
and for almost-machine-language Arduino coding..... Yes, that does show the era in which I learned to write code.??? 8-) Arv? K7HKL _._ On Tue, May 15, 2018 at 2:50 PM, Arv Evans <arvid.evans@...> wrote:
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Re: Should we adopt the KD8CEC firmware?
This is only loosely related to the question regarding what should be the standard uBITX Arduino software system, but it might be interesting to some. Arv? K7HKL _._ On Tue, May 15, 2018 at 1:57 PM, Vince Vielhaber <vev@...> wrote: You, like Tim, are looking at it from an experimenter's point of view as an experimenter's platform.? Not everyone who purchases one is an experimenter or plan to use it as an experimenter's platform.? The idea of standardizing on the CEC firmware will (IMO) appeal to the greatest number of hams.? That's the goal, attract as much interest as possible. |
Re: CONTEST!!!! New Board Naming Contest
#ubitx
Contest updates AND clarification of the rules - go to for the details and also the main details on the card itself.
READ THE RULES -- NO PUBLIC POSTING OF ENTRIES to this reflector OR to the uBITX group on Facebook or the entry will be disqualified.? You can submit more than one entry but send it to the email address defined in the original post.? We have had to disqualify several entries already because people did not read the rules. W0EB |
Re: CONTEST!!!! New Board Naming Contest
#ubitx
Vince Vielhaber
After reading the rules I submitted it again to the email address provided.
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Vince. On 05/15/2018 04:43 PM, Jim Sheldon wrote:
Vince - shame on you. You did not read the post. You were not to --
Michigan VHF Corp. |
Re: CONTEST!!!! New Board Naming Contest
#ubitx
Vince - shame on you.? You did not read the post.? You were not to submit your entry publicly to this reflector -- read the original post!? Because of that, this entry is hereby disqualified, sorry.
Come on people, follow the rules! W0EB |
Re: Should we adopt the KD8CEC firmware?
¿ªÔÆÌåÓýMade up scenarios dont really do this thought train justice as any competent coder would then include the CW code when the Tune feature is defined in the code. QED.?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: email:??bill@... ? On May 15, 2018, at 9:48 AM, Tim Gorman <tgorman2@...> wrote:
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Re: [Bitx-20] special session at hamfests to teach the neophytes re latest firmware
If there's a local makerspace handy, I suggest you lug a laptop and a Raduino (or Nano) in and ask if somebody can help you load some firmware.? Or a local ham club meeting.? Arduino's are very popular,? ?having an impact far beyond ham radio.? Here's an old post about maker spaces:
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? ??/g/BITX20/message/48022 ? On Tue, May 15, 2018 at 01:23 pm, David Wilcox wrote:
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Re: Digital communications with a USB sound card - dumb mistake
#ubitx
¿ªÔÆÌåÓýFor sound interfacing, I decided the best route was to keep as
much inside the box as possible.? The mic and speaker jacks are
wired so that if nothing is plugged in, they default to the
Easy-Digi board audio transformers.? These are connected to a 6
dollar USB sound dongle plugged into a 4 port USB adapter (room
for a RTLSDR panadapter later on).? A 330 ohm resistor is in
parallel with the audio out to the mic-in on the sound dongle to
make volume adjust less sensitive. For heat dissipation, I used the outer shell of an old car audio amp (almost 2 pounds of solid aluminum), and mounted the PA finals directly to the case by moving them underneath the main board.? I also re-purposed one of the original heat sinks to the 7805 regulator.? That puppy gets pretty warm without a little help. Ignore the cardboard front and back panels.? Those are temporary until I print out the permanent ones. The 3 color LED strip also acts as a transmit light.? Only blue
and green are on with power, and red turns on for transmit. On 5/15/2018 4:18 PM, Bo Barry wrote:
Whoops, a USB sound card gives you stereo sound output. Plugged into the mike connector for digital work it activates the PTT line with the audio! |
Re: uBitx
Vince Vielhaber
What is the serial number of the uBitx? You may have one with the bad audio chip. If so, it has WX on it.
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Vince. On 05/15/2018 03:00 PM, allen west wrote:
--
Michigan VHF Corp. |
Re: [Bitx-20] special session at hamfests to teach the neophytes re latest firmware
¿ªÔÆÌåÓýYou gentlemen seem to have such a great time discussing all of these changes and ?what should/could be a standard load from the start. ?I have been studying my Arduino starter kit and one of Jacks books but still have a long way to go. Possibly next year at FDIM and at Hamcation, Hamvention and even Ozarkon one or two of you could put on a seminar about this issue and maybe even help some of us upgrade our rigs (both of them) in a special session. ?We would bring our radios, laptops if necessary, etc., and go step by step installing the latest code and then have an explanation on how to make it work. ?I would even pay a fee for such a class. ?It could be like in my past medical conferences where it was early in the morning before the rest of the session started or during the afternoon when the rest are out seeing the sights. ?These sessions were called "special interest groups". I just need to see someone do it the first time (load in new code) with a step by step explanation and then the light might go on. Is something like this possible? Dave K8WPE,_._,_
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Re: Core for Output Transformer
That the BN43-302 core is getting warm is no surprised? ?Its not enough for more than 10w
based on other amps I've made.? Two end to end or the 6802 (over an inch long) have worked? much better at the 20W and higher level.? The turns radio and what wire used can have a big difference at the higher end of the range.? Thin wire will heat significantly from the RF current.?? If the core is getting warm at low frequencies it may not be the core but the lack of enough inductance.? that is hard to fight as more turns may be moving further away from optimum at 30mhz.? The solution is a bigger core, two is series making it longer may be enough? or the 6802 core. Its also possible to use two fb43-4852 (amidon) .200id, .375OD, 1" tall.? Two of those run to 100W as a side by side pair using tube and strap construction.?? The 3312, I've run that to 65W in the WA2EBY amp during testing and it didn't get warm. Its a big core.? I did have heating issue with the wire.? The 3 turn winding was revised to 7 strands of #30 kynar wire (used for wire wrap) in parallel and that also brought the 10M power up. I still think the 2n3904s are the bottle neck for bandwidth and the mods are just trying to push them higher. Watching the input current to output power is a good thing to do as then you see the efficiency of the? amp and less than 40% bears inspection and higher 45-55% is definitely better. Allison |