Re: Nextion 2.8 display for sale
|
Re: Suddenly no receive on my sBitx - what are steps required to resolve this?
There is an assumption of software over hardware for failures.
There is a version of? software with a timing fix for the TX but it does not solve
all of the problems but it does help.?
Likely you may have to do board level repairs (mainboard) to replace finals and possibly
u3.? There may be other things as well.? A number of people have seen blown finals
and random other misbehavior of the transmitter section.? Its being worked but be aware
the solution(s) may involve circuit changes and code.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
Using the multifunction knob for scrolling through the bands makes great (and logical) sense for that function. I should have guessed that would be the approach.?
|
As to band table display.? My preference is a general up/down button pair
that gets applied to the currently active function (highlighted)
Band would be that function and a scrollable list with current being displayed.
The current scheme eats a lot of screen space.
The other way is if you hit currently indicated band the table as it exists appears
on screen and after selection disappears with a indicator of band selected.
The general idea is a way to bring up choices pick one then go back to the cleaner screen.
The ICOM IC7300, 7610 use that type of scheme as well as some toyota cars for things
like music system and controls.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
a pilot idea with tablet or pc
cdt
|
Three possible locks came to mind..
Band edge for the ham bands (no tx if outside),
Keyboard inhibit of other functions while "typing".
VOX or audio TX disable while other audio sources are in use (like web browser on a page with music or talking).
?
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
Nextion 2.8 display for sale
For sale: ?Nextion 2.8" Enhanced "K" series display. ?I have enlarged the holes to fit the uBitx case, made a wiring harness for it, and powered it up to make sure it is working. ?However, I have decided not to install it as I am very happy with the N8ME/VU3GAO firmware for CW. ?
$30 shipped in CONUS. ?Please contact me privately if interested and for more information.
73 Howard K4LXY
|
Re: Datkight Radio: Who's Building?
Another tip is to print the PTO form scaled to 110%. I got the brass nuts at Home Depot, they didn't fit the original size.
73, Mike AF7KR
|
Re: Datkight Radio: Who's Building?
I dead bugged (ugly) version on a sheet of G10 copper clad sheet.
FIRST and foremost use 4.9152 or 5.0688mhz crystal to avoid WWV issues at 5mhz.
Second lay it out in a fairly straight line for RF as it keeps inputs and outputs apart.
Especially true for the TX amplifier chain.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
Re: Suddenly no receive on my sBitx - what are steps required to resolve this?
Its TX oscillation (yellow red screen) in the TX.
USual case is finals blow and then possible U3 filaure.
Your troubleshooting a hardware issue.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
Re: Sbitx #165 received today, thoughts.
Generally, for linux lowering the number of processes can improve response.
The process table is large as seen from terminal running top.? A lot of the
processes are for things like running the GUI and other multitasking and
multi-threaded operations.?
Tentec has good QSK at least on the 4 radios I have (Argo 505, Triton, 6n2, Eagle)
but generally the processing between the user and the RF is small, fast and
RTOS (likely custom) based were there is a MPU.? The first two are totally analog.
Just my $.02 all the hardware for SSB and data are really in the way for CW and?
inefficient.? Good CW alone can take far less hardware and power for the
same output.? Of course everything else is retained because a good RX is still
important.? The whole idea of OOK is simple, until its added to a system that
isn't.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
The scrolling would be bidirectional via the use of the upper rotary control (what you normally use to adjust volume or any other multiple selection button that has focus).
At this point, any GUI changes I propose and code I¡¯m going to have as optional, preferably controllable by the user at runtime and not compile-time #DEFINEs. ?I¡¯m considering everything experimental. ?We¡¯re probably going to have to play with several GUI designs until we know what may become the mainstream GUI. ?And of course, Ashhar has the final word :-) ?I¡¯m just a contributor.
toggle quoted message
Show quoted text
On Oct 2, 2022, at 10:15, PeteWK8S via < pmeier@...> wrote:
¡°?I¡¯ve been considering an option in software to change the multiple band buttons to one button that scrolls through the bands, much like the MODE button does with modes¡±
Please reconsider this consideration. :-) No one I know has been happy with any radio that forces you to scroll through all?the bands to get to your choice. It¡¯s understandable to want (or need) to conserve screen real estate. At least consider making the scrolling bi-directional.? Pete WK8S?
|
Re: Datkight Radio: Who's Building?
Mark, Use crystals? that are not 5MHZ. You can purchase crystals that are slightly above 5 and some below 5mhz. WWV will be a pain, depending how strong WWV is into your QTH. ? ? Sent from for Windows ?
toggle quoted message
Show quoted text
From: Steve BarkesSent: Sunday, October 2, 2022 12:18 AM To: [email protected]Subject: Re: [BITX20] Datkight Radio: Who's Building? ? We have a dozen folks or so in our club¡¯s ¡°Builders¡± group that are building the Daylight Radio.? We¡¯ve completed the PTO, BFO Crystal Oscillator, and the Crystal Filter.? Next up is the 7MHZ Receiver Input Filter.? We¡¯ll build the receiver first, and then move to the transmitter. ? We all are building Manhattan style.? Dave Hassall, WA5DJJ is leading the group. ? Steve Barkes W5RRX ? ? Just curious how many here are building, or planning to build, Farhan's Daylight Radio.
How far along are you and do you have any tips for those of us just starting?
It looks like a fun project and something different from most of the recent projects I've done. I recently read Bill Meara's Soldersmoke book and it got me motivated to tackle a project like this. I haven't built anything like it for a long time. Hopefully it'll be a nice learning (or re-learning) project.
My plan is to do it modularly either dead bug or Manhattan style...probably the VFO first then the receiver section and then the transmitter if everything goes well. Any advice along those lines would be appreciated.
73...???? Mark??? AA7TA
|
Sketch too large... remove the bootloader
I've was at 99% flash usage on my custom firmware, which picks-n-chooses from others and mashes in my own mods.
Assuming you're modding & need some space & don't want to give anything up...? you can free 2K bytes if you'll give up the Arduino Bootloader.? As long as you use ICSP (usbTiny, etc.) to do the programming, rather than letting the Arduino IDE upload the sketch, the bootloader isn't needed.? My toolchain has always been to export a HEX file, then use AVRDUDE directly to program Flash & burn EEPROM separately, so I've always used a usbTiny programmer to upload the images.??
You have to modify the appropriate BOARDS.TXT, copying the Nano section & modifying the memory limit & some flags; instructions on the Internet are pretty easy to find, just google "Arduino sketch remove bootloader"
The 30720 limit disappears & you have the entire 32768 flash space to yourself - 2K free feels like heaven.
As an bonus, it boots faster, too.
|
¡°?I¡¯ve been considering an option in software to change the multiple band buttons to one button that scrolls through the bands, much like the MODE button does with modes¡±
Please reconsider this consideration. :-) No one I know has been happy with any radio that forces you to scroll through all?the bands to get to your choice. It¡¯s understandable to want (or need) to conserve screen real estate. At least consider making the scrolling bi-directional.?
Pete WK8S?
|
hello,
Here you? have some useful videos on the installation of the Nextion, Smeter and AGC. For questions about it Good day
cdt
https://www.youtube.com/watch?v=Km2pi2wEdBQ
https://www.youtube.com/watch?v=4YIlKUrZubk
https://www.youtube.com/watch?v=ZaeBBkDUmw4
https://www.youtube.com/watch?v=UyKvJJZmMO0
|
Re: uBITX v6 -AGC and S-Meter
Most others are far more knowledgable on here than I am, but for the S-Meter you need to get another Arduino Nano and add it to the uBITX. I have been attempting to Mr. Ian Lee's blog for it. You can find it here? I can't help you with AGC as I have been looking for that myself.? -- '72
Aaron K5ATG
|
Re: Some good news for the sBitx group
#sBitx
I've long since found mics and their characteristics need to match the
users voice and the radio.? With SSB too much bass or high peaking
makes for hard to copy audio as its also bandwidth limited between
RX filters the other guy controls and the need to constrain the TX
bandwidth.
For the Sbitx how I sound right now was fine.? It needs work but
mic or adding some equalization (in software) remains to be seen.
For now its fine as there are bigger fish to fry namely the finals blow up.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
Re: Sbitx #165 received today, thoughts.
I kind of figured an RTOS would sacrifice the flexibility we have with a general OS. ?Not a route we want to go.
Straight CW keying on the sBitx is reasonably good right now. ?I want to experiment with an external keyer and see how fast straight keying can go.
The biggest challenge I see right now is that the smallest time resolution is 1 mS, within ui_tick(), which is called by GTK every 1 mS. ?I did convert paddle reading to an interrupt service routine (ISR). ?Right now it calls modem_poll(), which I¡¯m not totally comfortable with as you normally want to do the very least amount of work within an ISR, and get out. ?But it hasn¡¯t caused any ill effects.
I think the answer to really good CW operation may be to have a totally separate lightweight process that reads the paddles and feeds CW element data to the sbitx process. ?We¡¯re still at the mercy of the Linux scheduler, but we can nice -20 this lightweight process and get something approaching realtime operation.
Ten Tec QSK is what we need to shoot for :-)
toggle quoted message
Show quoted text
On Oct 2, 2022, at 08:42, ajparent1/kb1gmx < kb1gmx@...> wrote:
As to RTOS, ther are a few for Rpi.? A few are not free and developing?
applications and installing them are often difficult.? generally they end
up as monolithic lumps with RTOS and system part of each other.
You end up loosing the flexibility that goes with a general OS.
Linux, aka Rasbian can be lighted and it is generally very responsive.
The installed version is however a full and complete distribution
including games.? ?But its very flexible.
The big yabut is all SDRs have processing delay and latency. Never
do CW on a flex and listen to you actual RF out...? You will start stuttering
as the output tend to be delayed by 30 to 50mS.? All the other modes?
are generally not impacted by that.? Then again I have several TenTecs
as they do QSK well.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
|
And change the ubitx.h file to the Nextion display
#define UBITX_DISPLAY_NEXTION???????? //NEXTION LCD
This is the error message
Sketch uses 31118 bytes (101%) of program storage space. Maximum is 30720 bytes.text section exceeds available space in board
|
Gerard
Aaron K5ATG