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Re: Here's the operating manual
Ah yes. I, too, got very good at tuning analog radios and getting very close. I had a Drake B line, which had the 25 KC calibrator, but it also had each dial revolution at 25 KC. Someone had further marked the dial skirt with puff paint or glue or some such every 5 KC. Between those things, I really could get within just a couple KC of whatever freq I wanted. Later, when I had a rig that had fewer tactile markings, I could still get very close.
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Anyway, when this becomes available and I actually have expendable capital, I will definitely be grabbing one to play around with :) -- Buddy Brannan, KB5ELV - Erie, PA Email: buddy@... Mobile: (814) 431-0962 On Jul 8, 2022, at 9:28 PM, Ashhar Farhan <farhanbox@...> wrote: |
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Re: uBitx V6, no reception.
#v6
#ubitx6-help
Ashok,
The way you have described it, The v6 uBitx should be frequency calibrated, and the BFO set for the proper range.? I would say it is good enough. Good Job! 73 Evan AC9TU |
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Re: Here's the operating manual
I can attempt mixing the rx audio and the tts output. Last year, somehow ocra got enabled and there was no way to turn if off! I would prefer a screed reader that is under sbitx control to set the level of chatter. Long gone now, but as a kid, I would go to sleep listening to the band with lights switched off. The night stand radio was a HW8 loaned by Anil, SM0MFC. The working was simple and the band was covered in exactly six turns of the tuning knob. I could home into a frequecy within 5 khz by touch. There was ghastly frequency calibrator that he had added by drilling holes into the front panel. It screamed every 25 khz.? Anyway, very few stations knew their own frequencies back then. Some were so drifty that during a morning qso, we'd ragchew across the band, stomping over two cw nets. Once I heard Abeezar on 20 and gave a call to him, he didnt reply back. So I called him on the landline, he said he was on 40! Figure that out! - f On Sat, Jul 9, 2022, 5:26 AM Buddy Brannan <buddy@...> wrote: There is Orca for GNOME, and Speakup (a set of kernel modules) for the command line console. I gather that the SBitX apps use GNOME somekindahow. Anyway, I think this could be done, even if speech on demand interrupts the receiver briefly, or if speech is instead sent to an additional sound card. |
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Re: Here's the operating manual
There is Orca for GNOME, and Speakup (a set of kernel modules) for the command line console. I gather that the SBitX apps use GNOME somekindahow. Anyway, I think this could be done, even if speech on demand interrupts the receiver briefly, or if speech is instead sent to an additional sound card.
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-- Buddy Brannan, KB5ELV - Erie, PA Email: buddy@... Mobile: (814) 431-0962 On Jul 8, 2022, at 4:02 PM, David Barber <wd8ajq@...> wrote: |
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External USB connection for programming the Raduino
Hi,
I was wondering if someone has carried out a hack to include a USB port externally on uBITX so as to allow programming or access to the Raduino without having to open the case? Explanation: Once the uBitx + the Raduino is in the case, and code changes need to be made or maybe if I could use RigPi to control the uBITx then I would need to have the USB externally to allow for control of the rig? Has this been done? or cannot/should not be done? Many thanks Best 73 DE M0RVI/Ravi -- I'm here to add more value to the world than I'm using up. |
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Re: Here's the operating manual
Buddy:
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I have also started reading the Sbitx manual. I personally like the rig having a keyboard interface. After reading your below message it got me wondering. If there is a screen reader to speech output on the Pi platform, making the Sbitx accessible for the Blind might be easy to do. I have very little knowledge about the Pi platform. Most of my screen accessibility usage is underMicrosoft and Apple. Dave WD8AJQ Sent from my iPhoneSE On Jul 7, 2022, at 2:11 PM, Buddy Brannan <buddy@...> wrote: |
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Re: Sbitx manual
This card can be used instead of the Audio Codec Board-PROTO. The card mounts directly on the pi. A stacking connector should be used instead of the standard connector so you can access the gpio's on the pi. The board uses the same pins as the Audio Codec Board and it uses the same linux driver.
vy 73 de oz9ny, Niels |
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Re: Sbitx manual
Doug, I had bought 5 of them at the start of the project from mouser. There is some equivalent board from waveshare too I guess. The kit uses a custom board. - f On Fri, Jul 8, 2022, 8:09 PM Doug W <dougwilner@...> wrote: On Tue, Jul 5, 2022 at 07:46 PM, Ashhar Farhan wrote: |
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Re: Here's the operating manual
David, I am updating the paper on sbitx. I will have it out soon.? - f On Fri, Jul 8, 2022, 8:23 PM David Forrest <drf5na@...> wrote: It might be nice to flesh out the page 2 text "The technical details of how the radio works are covered elsewhere on and my blog ." to point to the talk the doc and a couple specific threads here. |
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Re: Here's the operating manual
It might be nice to flesh out the page 2 text "The technical details of how the radio works are covered elsewhere on hfsignals.com and my blog ." to point to the talk the doc and a couple specific threads here.
Maybe these threads would be good: /g/BITX20/topic/92208839 for the manual editing, /g/BITX20/topic/92079980 for the manual, /g/BITX20/topic/82011726 for the thread on the talk, /g/BITX20/topic/sbitx/83191173 for oz9ny?Niels thread on hacking up a sbitx. |
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Re: Sbitx manual
On Tue, Jul 5, 2022 at 07:46 PM, Ashhar Farhan wrote:
you can order a wm8731 card for 20 dollarsAre you using the Mikroe-506 board?? It looks like the genuine ones are out of stock at all US distributors and shipping from Mikroe costs almost as much as the board itself.? I don't mean to detract from what looks like a great project, just sharing what I found. ? -- |
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Re: Here's the operating manual
Buddy, There is one heavy lift change needed for it be blind friendly - The audio subsystem needs to move from alsa to something like portaudio so we could play the screen text read out over and above the audio signals. - f On Fri, Jul 8, 2022, 6:08 AM Buddy Brannan <buddy@...> wrote: Hi, |
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Re: Here's the operating manual
Hi,
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This is outstanding! I can see that there should be a lot of interest in the blind hams community around this. I¡¯m definitely not radio poor myself, I¡¯ve got a couple of them, but I¡¯m absolutely interested. I¡¯m thinking a pretty low-cost, modest station consisting of a SBitX with one of the N7DBC designed automatic antenna tuners would be a nice station. Exciting stuff. I¡¯m in. -- Buddy Brannan, KB5ELV - Erie, PA Email: buddy@... Mobile: (814) 431-0962 On Jul 7, 2022, at 8:08 PM, Ashhar Farhan <farhanbox@...> wrote: |
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Re: Here's the operating manual
Buddy, I have tried making the radio eyes free to the extent that I can do everything from the keyboard, except to read back the settings. That will happen soon enough.? The commands code is right now a big pot of entangled top ramen noodles (ie along if-then-else switch). Once we go gold on the sbitx v1, I will refactor the code to make it more readable.? We will also have to add scripting feature to this. My idea is that one should be able to telnet to the radio and use the digital modes. - f On Thu, Jul 7, 2022, 11:41 PM Buddy Brannan <buddy@...> wrote: So I¡¯ve started reading the manual, and this looks very exciting. For one thing, the possibility of rolling an eyes-free interface, with already available TTS or morse readout, is pretty exciting. Since everything can be controlled with a keyboard (numeric keypad maybe?) and mouse (ick¡I¡¯ll forego that!), and it¡¯s all GNU/Linux underneath, well, that lends itself to a lot of possibilities. So, glad to see this is getting closer. When I first saw the $500 projected cost, I was a little hesitant, thinking¡oh¡for an HF only QRP radio, that might be a bit more than I want to spend, but¡am I reading this correctly? 50 watts? If so, I can see this as definitely more attractive for more people. 50 watts isn¡¯t far off the usual 100 watts for all practical purposes anyway. |
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Re: uBITX Operator awards KO4CVU and others
I have since discovered that the original post,?/g/BITX20/message/46616?was made by Howard, himself. I first became aware of the modification when my uBITX mentor, Bob, WB8BEL, wrote to me about it and referred me to an article posted at ?
-- Stephen, KO4CVU |
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Re: uBITX Operator awards KO4CVU and others
Howard¡¯s modification involves adding 3 passive parts: ? 33 uH inductor in series with R86. I lifted the resistor mounting it on one pad standing up, and teepeeing the inductor between the top of the resistor and the other pad. ? Adding a 270 pF capacitor across both R87 and R88. Collectively, the uBITX community owes Howard, WB2VXW, thanks for developing this modification to even up power output across the bands. This information was originally posted somewhere on the BITX20 group but I copied it and saved it locally. I am also thankful to whomever posted it. On Thu, Jul 7, 2022 at 4:03 PM Max via <kg4pid=[email protected]> wrote:
Stephen C. Martin, KO4CVU (629) 867-7260 Please remember: Hands, Face, Space and Ventilate! --
Stephen, KO4CVU |
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Re: uBITX Operator awards KO4CVU and others
Could you please tell me what??"Howard's modification" is? Max KG4PID
On Wednesday, July 6, 2022, 01:58:00 PM CDT, Stephen KO4CVU <goinfishin1952@...> wrote:
Ashhar, You are being too kind. I am using Fldigi version 4.1.23 running in Raspbian on a Raspberry Pi 3B. The Pi is the microprocessor part of the Nexus DR-X crosspatch that Budd Churchward, WB7FHC, kits and sells on his webpage at?. The package of software for it is maintained by Steve Magnuson,?AG7GN.? And by the way, based on my own personal experience, I have come to the conclusion that "Howard's modification" made it possible to run digital on my version 6. I say that because I recently bought a second, but unmodified, v6. I tried to use my Nexus DR-X crosspatch with it but the output power was only about 1/10 watt. After completing "Howard's modification", I can get about 4 watts out on 20 meters and 40 meters. I had already completed "Howard's modification" on my first v6 before trying to go digital with it. That first unit will deliver 5 watts on 20 meters and about 10 watts on 40 meters. I am not smart enough to know why "Howard's modification" seems to enable the digital connection to work, I just lucked into the discovery. I also do not understand why the second v6 won't give me more power out on 40 watts, but QRP digital at 5 watts or less is my niche, so I am happy. My most recent power measurements have been with the Barb-A-Watt QRP HF Power / SWR monitor kitted and sold by Kees Talen, K5BCQ. Thanks again for the kind words. If it wasn't for you and your uBITX, I wouldn't be enjoying the ham radio hobby today. Please keep up the great creative work! |
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Re: uBITX 13 Colonies Clean Sweep!
Mike - The uBITX I run digital on has AGC mod (which is turned off for digital), 2.8" Nextion display, and the KD8CEC firmware.? The radio hooks up to an inverted vee by way of a QRP modded ATU100 tuner.? On the computer side I am running wsjtx software and connect the radio to computer with USB cable and a sound card dongle to attach to mic and headphone jacks on the radio.
73, Justin B. KI5GKD |
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