what I am looking for is a method to turn on an amp , MX-P50M, which requires a ground to activate, modes used would be SSB and all digital modes which requires cat control
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Re: Firmware options for the current uBitx v6 with the 2.8" tft display
#ili9341
Dean:
I agree, especially with multiple ways to solve a problem. I tried the Nextion editor years ago and didn't like it, so never tried again. I'm sure it's improved over the years. I also realize that, if you value your time at more than a nickle an hour, the editor's probably the smart choice. Since I'm retired, my time actually might be worth less than a nickle an hour! Finally, I'm using the RA7588 series display which has its own onboard processor as well and a BME ability plus I can do DMA stuff, too, which is important in my SDT project. I guess the choice depends on what you're doing and the depth of your pocketbook.
Jack, W8TEE
On Saturday, August 21, 2021, 12:58:39 PM EDT, Dean Souleles <dsouleles@...> wrote:
On Fri, Aug 20, 2021 at 02:43 PM, Jack, W8TEE wrote:
I really don't understand the allure of the Nextion series of displays. They are 4x as expensive as a non-Nextion display with similar features and they don't require you to store pages in memory/SD card. Perhaps its the editor because it allows non-programmers to modify the screens. Still, with perhaps a day's worth of study, you could program an alternative display and have complete control over it. What am I missing?
Jack - Understand about the cost difference but for me it is an easy trade off. One of the things I like about the Nextion is the screen editor and object library.? The Nextion IDE is super feature rich and already does 90% of what I want in a UI.? ?My Nextion builds don't store pages in an SD card.? And just having an WYSIWYG editor doesn't mean you don't have know programming to use it - you actually do, and you need to understand how object oriented GUIs work and how to register callbacks, etc.? ?I just don't want to spend a lot of time hand laying out a UI, pixel by pixel.? ?I can make a beautiful functional and very modifiable and maintainable GUI in a fraction of the time that it would take me if I had to hard code all of the layouts and design buttons and sliders, write the touch screen handling, etc. etc, etc.? ? Evan made a point about separating functions - and the fact that the the Nextion has its own programmable micro controller is also a benefit.? Its a simple example, but I added a frequency scanning control to the rig with no changes to the Nano code at all. For my homebrew QRP transceiver I support three different screens - and standard 4x20 LCD a 320x240 TFT (non touch), and a 320x240 Nextion.? The Nextion is what I have in the build that I use every day. If you know of a good GUI editor and library that is equivalent, or even close I would give it a try, but I haven't found anything like that.? Last thought - I've been a professional coder for 40 years now and one thing I know for certain is that there are many ways to solve a programming problem - and no-one has a patent on the best single answer. 73, Dean ?
-- Jack, W8TEE
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Probably way too simple but I have used a simple press button switch on a lead, so it is alongside my operating position.
That was with a different rig but it just worked and I didn't have the need or desire for anything else.
Reg????????????? G4NFR
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Mitchel,
The article from N6QW does work for SSB mode.? It will not work if you go to CAT or CW modes, as there the PTT source comes from somewhere else.? A solution that takes into account all PTT modes is to pull off of the K1 TX signal and feed that to another relay to trigger your PTT line.? That would send the signal to the amp anytime the uBITX is in transmit mode.
Even using K1 as the amp PTT source you could get into issues with timing.? For some situations you need the amp on and stable before sending the RF from the uBITX, in others, you may need to switch the amp input to a 50ohm load before allowing power to the amp.? Each amp would need to be investigated to ensure proper operation.? Most should work with the K1 switching.
I have not done this interfacing with the uBITX, though I have with other rigs.? At the time I was playing with the DIY kits from eBay I did not have a clean uBITX that I could feed to an amp.? Take that into account when you make your choices.
73
Evan
AC9TU
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I would take the T/R logic level signal from the Nano, invert if required, additional delay if required, opto isolate (so there is no common "ground")
I don't have and have never used an amp, so I don't have any feel for the delay timing required.
When I see someone recommending / re-recommend using the PTT signal..... That won't work with CAT or CW.? So why do it that way?
You also have a variable delay between when the mic is keyed (or released) and when T/R changes data state.
Just another opinion.
Regards,
Gary
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Dean
I saw that article and at first it wasn't making any sense, looked at it several times and finally clicked as to what was going on, my thought process was in low gear, some days are worse than others
thanks for the info
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Re: Firmware options for the current uBitx v6 with the 2.8" tft display
#ili9341
On Fri, Aug 20, 2021 at 02:43 PM, Jack, W8TEE wrote:
I really don't understand the allure of the Nextion series of displays. They are 4x as expensive as a non-Nextion display with similar features and they don't require you to store pages in memory/SD card. Perhaps its the editor because it allows non-programmers to modify the screens. Still, with perhaps a day's worth of study, you could program an alternative display and have complete control over it. What am I missing?
Jack - Understand about the cost difference but for me it is an easy trade off. One of the things I like about the Nextion is the screen editor and object library.? The Nextion IDE is super feature rich and already does 90% of what I want in a UI.? ?My Nextion builds don't store pages in an SD card.? And just having an WYSIWYG editor doesn't mean you don't have know programming to use it - you actually do, and you need to understand how object oriented GUIs work and how to register callbacks, etc.? ?I just don't want to spend a lot of time hand laying out a UI, pixel by pixel.? ?I can make a beautiful functional and very modifiable and maintainable GUI in a fraction of the time that it would take me if I had to hard code all of the layouts and design buttons and sliders, write the touch screen handling, etc. etc, etc.? ? Evan made a point about separating functions - and the fact that the the Nextion has its own programmable micro controller is also a benefit.? Its a simple example, but I added a frequency scanning control to the rig with no changes to the Nano code at all. For my homebrew QRP transceiver I support three different screens - and standard 4x20 LCD a 320x240 TFT (non touch), and a 320x240 Nextion.? The Nextion is what I have in the build that I use every day. If you know of a good GUI editor and library that is equivalent, or even close I would give it a try, but I haven't found anything like that.? Last thought - I've been a professional coder for 40 years now and one thing I know for certain is that there are many ways to solve a programming problem - and no-one has a patent on the best single answer. 73, Dean ?
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hello,
I found this one that looks a little bit like Ubitx.?If we want to "tinker" I think we can take parts and integrate them on the Ubitx, or modify it with the arduino.?It¡¯s really if we have time to get over it.
Cdt
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Beauty of the various BITX designs is that they are open source
and are easy to modify.? Of course you can experiment with your
uBITX-V6.? That is what they are designed for.? The price is right
for a unit if you want to modify it.
Arv _._
On Sat, Aug 21, 2021 at 4:12 AM Gerard < kabupos@...> wrote: Hello
I was wondering if we could transform the ubitx V6 schematic? with more "integrated" components of the current era.
That is to say replace the mixers by a single chip (it exists on E..Y), same for the 4 blocks with 3 transistors BFR93W by a single chip, etc.
Can be keep only the 2 power transistors.(?)
I don¡¯t know if we can integrate the SSB filter, the filters made with the coils, and the relays.
Has anyone jumped into this and come up with a schematic?
All this for a little brainstorming.....?LOL.....
cdt
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Pretty simple to do - Pete, N6QW? has a super easy solution...
73,
Dean
KK4DAS
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Hello,
Thank you for your answers
Yes, I found plenty of schematics on the net with MC1350 amps and Ne602 mixer.
But, it is rather the opposite on these mounts, it would be necessary to add the Arduino part to drive the transceiver,so the Ubitx remains well placed.
cdt
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I was considering an old school method.
Since I'm going to go to a desk mic for my uBITX v6, I'm going to put
together a relay box activated by a ptt switch. It worked in the old
days (1970's), so I don't see why it won't work now.??
I was considering duplicating K3 and tapping into the tx signal, was curious if anyone had used anything else
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Hi,
Replacing all those parts with SMD ICs wouldn't do much to appeal to hams who want to experiment. The 'homebrew' 'kit' becomes a plug n play appliance. There are lots of those on the market already.
There are even some ICs that are just about a complete radio already.
73,
Bill KU8H
bark less - wag more
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Show quoted text
On 8/21/21 11:56 AM, Ismo V??n?nen OH2FTG wrote: Some things like that would be doable for sure, like replacing the homebrew mixers with commercial one's like ADE-1 for increased cost.
The bidirectional amps could be built with MMIC gain blocks and modern RF switches and so on.
But there's not that much in the radio to begin with and replacing the existing parts with something more integrated would increase cost and make sourcing parts harder.
That's my take on it.
That said I use a lot of MMIC gain blocks in my homebrew stuff. But that's because I have piles of MSA-0385 and MSA-0686 MMIC's pulled from old basestation equipment.
They are old, but inherently stable and good +15dB of gain over HF and VHF with just DC blocking caps and +12V fed via a resistor.
The flipside is that they usually consume much more current than a discrete solution would.
I have been thinking about seeing if some cheap and commercial transformer could replace the FT37-43 toroids used in the ?BITX mixers. Cheaper, machine assemblable and very available is the goal!
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I was considering duplicating K3 and tapping into the tx signal, was curious if anyone had used anything else
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Some things like that would be doable for sure, like replacing the homebrew mixers with commercial one's like ADE-1 for increased cost.?
The bidirectional amps could be built with MMIC gain blocks and modern RF switches and so on.?
But there's not that much in the radio to begin with and replacing the existing parts with something more integrated would increase cost and make sourcing parts harder.?
That's my take on it.
That said I use a lot of MMIC gain blocks in my homebrew stuff. But that's because I have piles of MSA-0385 and MSA-0686 MMIC's pulled from old basestation equipment.
They are old, but inherently stable and good +15dB of gain over HF and VHF with just DC blocking caps and +12V fed via a resistor.
The flipside is that they usually consume much more current than a discrete solution would.?
I have been thinking about seeing if some cheap and commercial transformer could replace the FT37-43 toroids used in the ?BITX mixers. Cheaper, machine assemblable and very available is the goal!
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You could run a 12V relays coil from the +TX line on the bitx??
Then you could use the relays normally open line for the amplifier keying.?
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has anyone built an amp control for the V6 where the amp needs a ground to be activated,
thanks
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A paint scraper tool is useful too, for sliding the reflowed PCB onto, off the hotplate.
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Hello
I was wondering if we could transform the ubitx V6 schematic? with more "integrated" components of the current era.
That is to say replace the mixers by a single chip (it exists on E..Y), same for the 4 blocks with 3 transistors BFR93W by a single chip, etc.
Can be keep only the 2 power transistors.(?)
I don¡¯t know if we can integrate the SSB filter, the filters made with the coils, and the relays.
Has anyone jumped into this and come up with a schematic?
All this for a little brainstorming.....?LOL.....
cdt
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Gerard
Ismo V??n?nen OH2FTG
Trystan G0KAY