Keyboard Shortcuts
Likes
- BITX20
- Messages
Search
Re: 11 files uploaded
#file-notice
HI Sunil ... I'm not able to found the folder: ... /easy bitx vfo bfo code/ ,,, and are not possible to download all sketch .ino ! Please i'm very interested in these files for my EASY-BITX. Best regards IW4AJR Loris |
Re: ??IF Stage doubts??
The name Earnest was done by me for a customer unfortunately when compiling again it was not deleted and the compiled software sent to you had this name.
The DDS works fine for me and many of my friends, However if you find something better use that which should solve your problem. Thanks? Sunil |
Re: 11 files uploaded
#file-notice
Sunil,
Your file VFO_BFO_DDS.ino? uses the Si5351 library from etherkit. Here are the many different releases of the etherkit Si5351 library: Since your file si5351calibration.ino says "Copyright 2015", and in the current V2.1.4 release it says "Copyright 2015 - 2018" in that same file,?it seems a rather old version was used. Can you tell us which version of the Si5351 library was used to build your firmware? Alternately, could you make the?si5351.cpp and si5351.h files from your build computer available? Jerry, KE7ER |
11 files uploaded
#file-notice
[email protected] Notification
The following files have been uploaded to the Files area of the [email protected] group.
By: Sunil Lakhani <vu3sua@...> |
File Notifications
#file-notice
[email protected] Notification
The following files have been uploaded to the Files area of the [email protected] group. By: Sunil Lakhani <vu3sua@...> Description: The following files have been uploaded to the Files area of the [email protected] group. By: Sunil Lakhani <vu3sua@...> Description: The following files have been uploaded to the Files area of the [email protected] group. By: Sunil Lakhani <vu3sua@...> Description: The following files have been uploaded to the Files area of the [email protected] group. By: Sunil Lakhani <vu3sua@...> Description: The following files have been uploaded to the Files area of the [email protected] group.
By: Sunil Lakhani <vu3sua@...> |
Re: ??IF Stage doubts??
Sunil,
toggle quoted message
Show quoted text
I'm convinced you have a solid product that works well. It fills a need, as HFSignals no longer sells a single band rig. Experimentation is encouraged, and I rather enjoy trying to figure out these puzzles when problems arise.? Long distance troubleshooting works best when all pertinent information is provided. When mods to a kit cause it to not work correctly, that in no way suggests that the kit was bad. Jerry, KE7ER On Wed, May 19, 2021 at 06:58 PM, Sunil Lakhani wrote:
Jerry we provide a working DDS unit using si5351 which is tested with Freq counter .? |
Re: ??IF Stage doubts??
In case anyone is curious about this business of the BFO moving
toggle quoted message
Show quoted text
when the VFO is changed: If it is a library issue causing the Si5351 to tune a common vco that is used for both for VFO and BFO, then they would both move the same amount relative to their frequency. Example:? Receiving at 14.2mhz, BFO at 10mhz, VFO at 10+14.2=24.2mhz. Tuning the rig down to 14.0mhz, the VFO is now at 10+14.0=24mhz, and the BFO moves proportionally down to 10mhz * 24/24.2 = 9.917mhz That is why I was asking for measurements on what the VFO and BFO were doing. For now at least, this seems the most likely source of the problem reported. The si5351bx routines used on the uBitx (and in Allard's Bitx40 code)? operate from a single vco operating at a fixed frequency of 875mhz. All the various outputs are generated by dividing that vco down using? fractional output dividers.? Tuning is accomplished by adjusting one of the fractional output dividers, not by adjusting the frequency of the vco.? The etherkit library may well have changed its default configuration from from one method to the other between the various versions. Jerry, KE7ER? On Wed, May 19, 2021 at 04:24 PM, Jerry Gaffke wrote: my best guess is that you compiled Sunil's source code |
Re: Let's Promote bitxmap.com Re: [BITX20] bitxmap.com and mark your spot in the world
Bill
There are no unworthy questions, each of us should admit to learning something here. Team Would not it be logical to host bitxmap at HFsignals?? One could invite buyers to add themselves to the map. An invite could be pinned to the front of this group, with link to hfsignals.? Curt |
Re: ??IF Stage doubts??
Jerry we provide a working DDS unit using si5351 which is tested with Freq counter .?
Now If any one has doubt on the DDS he is supposed to check the Freq output of vfo and bfo . Out here the builder preferred to port code from other sketch? We provide help In a framework as per our manual .we do not know if someone is experimenting and what he is doing and it becomes difficult to provide support. The problem comes when you have a conflict where you decide what is right and overlook what has been used for years as a standard design and components. When a person has achieved some breakthrough with his effort he should illustrate it with proof,but not try to alter and find faults in a tested design . We started our kits a decade back with bitx version 3. Then bitx version 3b. Later bitx version 3c using ade 1 and bitx3c using sbl mixers which were build by many hams worldwide all had the basic bitx design. The present easy bitx is the latest kit with much better performance and PCB layout . Better audio amp .audio mute.agc etc . If one goes to our cqbitx blog he could see pictures of so many bitx version 3 build by amateurs world wide . Thanks and regards. I am thankful to all members of this wonderful vgriuo who provide a constant support . De Sunil vu3sua |
Re: Let's Promote bitxmap.com Re: [BITX20] bitxmap.com and mark your spot in the world
Mark - N7EKU
Hi,
I would make sure you board is well grounded.? The cases are often painted very well so the standoffs and screws never make electrical contact.? Clean off the paint in the inside where the standoffs rest. Make sure the display and raduino are full plugged into their sockets.? If the main board and display locations are a bit off, then the boards can start to become disconnected or slanted, which can ruin the connection reliability. 73 |
Re: ??IF Stage doubts??
Sunil's firmware as programmed into the Nano he ships with each radio is fine.
toggle quoted message
Show quoted text
He has sold plenty of them, and they work. I still don't know what you have done, or what you are doing. On scant information, my best guess is that you compiled Sunil's source code using the wrong version of some Si5351 library, and that the version you used was tuning an Si5351 vco common to both the VFO and BFO. We had several issues with incompatible etherkit library versions back when the hfsignals Bitx40 plus Raduino first came out in late 2016. I suggest to Sunil that he include the appropriate Si5351 library source when he posts his Arduino sketch. Jerry, KE7ER On Wed, May 19, 2021 at 03:16 PM, <arorasimran@...> wrote:
However, please do note, this is not sunils code! |
Re: Let's Promote bitxmap.com Re: [BITX20] bitxmap.com and mark your spot in the world
Bill KB3YV From what you posted, your uBITX is a V-5.? There are not a lot of differences between V-3, V-4, V-5, and V-6.? Most of the factory changes were focused on FCC compliance.? There are several 3rd-party operating software systems for uBITX transceivers. Info for your uBITX V5 is located at The home page for the uBITX line is located at Some user experience based help is at The jumpy tuning might indicative of RF getting into places where it should not be.? It could also be a damaged tuning encoder (too much heat during soldering?).? Some on this discussion group may have experienced similar problems and can provide better advice. If you have a DVM it might be worthwhile to observe power supply voltage to make sure there is enough current to run the rig. You might want to read over the instructions to see how to go directly into the configuration menu when you turn it on. Arv? K7HKL _._ On Wed, May 19, 2021 at 4:21 PM Bill Gunshannon <bill.gunshannon@...> wrote: On 5/19/21 5:05 PM, Mark - N7EKU wrote: |
Re: Let's Promote bitxmap.com Re: [BITX20] bitxmap.com and mark your spot in the world
Bill Gunshannon
On 5/19/21 5:05 PM, Mark - N7EKU wrote:
Hi Bill,I didn't realize there were so many different models. I have no idea what model it is but when I turn it on it says uBITX v5.1 I joined the group to learn more about it before asking stupid questions. Main problem at the moment is turning the tuning seems to make the frequency jump by random, sometimes large, values. And, it is different depending on which way you turn it. As a result, the menus don't change smoothly and band change is truly weird. Almost looks like really bad keybounce. I am not sure if there is better firmware or not but I will need to learn how to load new firmware into the Raduino cause I already see things regarding the display that I am not going to be happy with. bill KB3YV |
Re: ??IF Stage doubts??
so i changed ????? bfo_freq = constrain(BFOFREQ + knob + shift, 9997469UL, 12000000UL);
in? Allards code and in the settings menu, i could tune the BFO... Kickass sinusoidal repsponse. Now touching the base of Post mix amp Rx side give me a buzz as described by sunil in his manual However, please do note, this is not sunils code! I would still tune the number and program to trace where the BFO settings are done and place numbers perefectly -- |