hello new here looking for info
Hello everyone,
?
I landed on this group in search of transceivers that are similar to the ubitx. ubitx is ok but like one post stated from prototype to production in a short time.Has had alot of problems from the start plus lots of noise and harmonics measured from my little tiny ultra.
?
i found links which led me here regarding the g6lbq project of a multiband transceiver. is this project still going? did the transceiver get into production and if so where is the links to go to either find more out or purchase it.
any one have any info or am i too late on the scene?HI HI
?
73
David
ac9xh
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Hi everyone,
Just a quick heads up, I have updated the blog this evening with a post regarding the development of the modulator microphone pre-amplifier stages.
Best regards
Andy G6LBQ
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Re: G6LBQ RF Multicoupler
Hi Peter
I have not posted the files in the group for the RF Multicoupler though the schematic is available on the blog but I presume you have seen that.
Are you looking to source a PCB which I can supply or are you wanting to make your own PCB?
I have not received an email from you off the group but maybe you want to try emailing me again.
I will be updating the blog very soon with details of the Irwell HF Transceiver modulator and microphone pre-amp stages for those who are following this project.
Best 73
Andy G6LBQ
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Re: G6LBQ RF Multicoupler
Hi Andy,
Did you ever post the files for the rf multicoupler ?
I have bought a few of these and wouldn't mind building your version to see how it compares.
Br Peter EI3JCB.
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Re: Carrier Oscillators question
Hi Paul,
Nice to hear from you and hope you are doing okay.
Regarding using the DDS for the MK2;
Providing your DDS is capable of providing two separate clock signals you should be fine.
One clock signal is used to generate the VFO signal and the second to generate the carrier oscillator frequencies for USB/LSB, the software driving your DDS must also be capable of generating the frequencies for USB and LSB.
If your DDS is not suitable I would suggest using an Si5351 and one of the many software sketches available on the internet.
Hope this answers your question.
Regards
Andy G6LBQ
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Carrier Oscillators question
Hi Andy, hope you doing well? I¡¯m busy with the MK2 multi
bitX still as I don¡¯t have a lot of spare time these days and it¡¯s dragging on
a little¡
But I was thinking of something and need your advice¡ my DDS
VFO can have offsets for USB and LSB which I¡¯ve never used before on all the
radios I¡¯ve used it on as they all have carrier oscillators to switch between
like yours. My question is this¡ my IF is 11.059Mhz so if I locked one CO to 11.059Mhz
and used the offsets in the DDS VFO to resolve SSB audio would this idea work?
Sorry to sound like a novice again I feel I¡¯m starting from
scratch as I¡¯ve been away from the shack for so long¡
If this idea is valid it would make construction etc a lot easier
and only one CO needed.
Anyway thank you for your time you give to us with your work
and ideas, yours Paul M0EME
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Hi Everyone
I have just finished building my RF Multicoupler for feeding several receivers/scanners from one antenna.
Details for the project are on my blog and I will post the files to the group in a couple of days.
https://g6lbq.blogspot.com/2024/01/a-vhf-uhf-rf-multicoupler.html
Best regards
Andy G6LBQ
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Hi Hans
I will edit the blog post to clarify the use of Arduino 2.0 and above.
I have not tried Arduino 2.2.1 myself and feel no great need to move over to this version but you are correct the issue is not if version 2.0 will work specifically but if the required STM32 support and asociated programming extensions will work.
Using the STM32 Bluepill in the Arduino enviroment can be a royal pain in the ass to setup especially for those with zero programming skills which is why I prefer to supply a portable Arduino package with everything included. My latest blog post regarding the software should make this easier to do providing the end user takes the time to do a little research.
The software package also includes a dedicated Si5351 library file which is needed to support the use of multiple Si5351 IC's, note there is also a custom Cache file for the ILI9341 display which was written for the VFO software and is included with the package files I send out.
I accept that some may frown at the thought of modifying library files and using these in the project? as appose to those already commonly available but it is a case of needs must, I am not aware of any other code that supports multiple Si5351 IC's or code that has an iLi9341 display Cache file to improve the displays speed.
Programming the STM32 Bluepill could be made easier if I suppled a "BIN" file that the end user could program using the STM link software but that would take away the fun of being able to modify the code and make changes.
Once you have the Arduino enviroment setup to work with the STM Bluepill programming is a breeze.
Regards
Andy G6LBQ
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Replying to my own post:
I could not get the "old" core to play nice with the 2.2.1 Arduino IDE.
Could be me, though...
So, like Andy already said, just use the legacy Arduino IDE 1.8.19 and use Rogers' core, a.k.a.?Arduino_STM32-master.
If you insist on using the "official" STM32 core you'll have to do some porting of the code.
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Hello Andy,
Just a small addendum to what you wrote in your blog about the Irwell trx.
You say that the software was developed using Arduino 1.8.19, and that things may not work in the newer Arduino IDE 2(.2.1).
I believe this is a bit misleading.
The issue is imho not which Arduino IDE you use, but which STM32 core software you use.
Looking at the portable Arduino 1.8.19 tree, I can see that you have been using Rogers' core (), which makes sense, since I believe that was the only available core at that time.
I have tried to compile the software from within the 2.2.1 IDE with the newer "official" STM32 core from?.
This won't work ! (out of the box...)
There are lots of differences in header files in Rogers' core vs. the ones in the stm32duino core.
I.e., the EEPROM.h file is quite different in both cores. The "official" one does not have an init() function in the class, whereas the one from Rogers' core does.
This (and other differences) causes many compilation errors.
So, if someone really wanted to use the official core, they'd better be prepared to do some recoding....
(I may look into this when I have more time, but no promises).
Haven't tried to compile the software using the Arduino IDE 2.2.1 using the "old" core. I believe that should work.
Will try this, and will let you know what the outcome is.
Regards,
Hans
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Hi Andy Very informative project . Well Done. Happy?New Year 2024 , 73s AP2RF
Just a quick post to let everyone know I have updated the blog with an overview of the Irwell Transceiver VFO software.
I am aware the files section is in need of some updates and hope to do that very soon.
If you have not visited the Blog head over to:
Finally I wish each and everyone of you in the group a peacefull and prosperous 2024.
Andy - G6LBQ
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Just a quick post to let everyone know I have updated the blog with an overview of the Irwell Transceiver VFO software.
I am aware the files section is in need of some updates and hope to do that very soon.
If you have not visited the Blog head over to:
Finally I wish each and everyone of you in the group a peacefull and prosperous 2024.
Andy - G6LBQ
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Re: G6LBQ MULTI BAND-BITX
Hi Roland
That PCB is indeed a version 1 and likely came via Sunil Lakhani in India.
It was considered experimental, short lived and replaced with the MK2 which was available from myself.
Unfortunately I do not posses any documentation for that PCB as it was not something I was supporting.
You might be able to refer to the MK2 files available in the group and get somewhere using those.
Regards
Andy G6LBQ.
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Re: G6LBQ MULTI BAND-BITX
Hi friend , is a old version...
Hello All,
I received from an OM in our club a blank PCB for a G6LBQ Multi band -BITX. I like to make this project , but the documentation is missing . Where can I find this ?
I know this is an old project , but I want to give it a try
Thanks
73 ON4RDB
Roland
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Re: G6LBQ MULTI BAND-BITX
This is old version i suppose.? Sarma vu3zmv
Hi Andy,
Thanks very much to respond on my mail.
I don't know the version but I attached? a picture of the PCB. Hope this can help
73 ON4RDB
Roland
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Re: G6LBQ MULTI BAND-BITX
Hi Andy,
Thanks very much to respond on my mail.
I don't know the version but I attached? a picture of the PCB. Hope this can help
73 ON4RDB
Roland
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Re: Irwell TRX and ADE-1-24
Thanks Jim,
That does clear up things a bit.
Just learned from Andy that he did use the ADE-1-24successfully in his Irwell TRX, so I think I'll
go ahead and order me some of these.
73,
Hans
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Re: G6LBQ MULTI BAND-BITX
Hi Roland
Is it a MK1 or Mk2 PCB ?
Once I know which PCB you have I will assist with documentation.
Regards
Andy G6LBQ.
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Re: Irwell TRX and ADE-1-24
Hi Hans,
The BITX20 group has some interesting comments regarding the ADE-1-24:??/g/BITX20/topic/4104916
QRP Blog also has an interesting write up:??
Basically, it's a custom version of the ADE-1 with a mirrored foot print.? ? ?The -24 indicates that it's a custom part from Mini Circuits.? So, custom (Non returnable) parts were bought, not used, than resold back out on to the surplus parts market.? ?
If you are not concerned with phasing, flipping 1-6 and 3-4 are really just swapping the input and output coil ends - there is no real ground in the mixer, the ground connections are really just the recommended connection - They could also be labeled LO+, LO-, and RF+ and RF-.? ? The? primary difference becomes pulling the IF output off of the LO coil instead of the RF coil.? ?This may also boil down to having IF+ and IF- as well.? So flipping all of the connections still works, but it's not have the ADE-1 was tested, so may not be the exact spec of the original ADE-1.? ? The QRP blog measured no difference up to 60 MHz which would indicate it will work fine in this application.? ? The other alternative is to just flip the part back over and solder leads from the PCB pads to the mixer leads.?
I was also confused by the "+" suffix on all of the parts.? ?But, this indicates RoHS compliance (Lead Free).? ?Neither Mini Circuits nor Digikey lists non lead free parts on their web sites, so ADE-1+ is likely the current default part number if ordering new parts.
Hope this helps,
73's
Jim N8CAH
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Hello All,
I received from an OM in our club a blank PCB for a G6LBQ Multi band -BITX. I like to make this project , but the documentation is missing . Where can I find this ?
I know this is an old project , but I want to give it a try
Thanks
73 ON4RDB
Roland
|
R-TEK
Roland ON4RDB
