Re: Replacement for the original Raduino?
Look like he referred about early version of SMD bitx40 with analog VFO.?
On Fri 14 May, 2021, 9:15 AM Support HF Signal, < support@...> wrote: Hello Eric,
Could you please let us know the payment details for the order that was placed with us. As of now we dont have any pending orders and the delivery schedules are within a week.
However have you written to us that the Raduino was needed for a Bitx 40? Sometimes when the version is not stated then there is a chance the dispatch team would have withheld the dispatch and then written to you asking for clarification pertaining to the version for which the raduino is required.
Meanwhile we shall definitely?look into this and get back to you as soon as possible. Kindly do drop us a mail at support@... and we shall gladly assist you from there.
Sorry for the inconvenience this may have caused.
Thanks and Regards,
Thomas
HI All,
When I got my Bitx40 a few years ago, it did not come with the raduino. Tried to buy one from HFSignals, but nothing delivered since February. Does anybody else make a replacement or clone?
Thank you,
Eric / ke6mlf
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Support@...
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Re: Strange drop in sensitivity on V6
#ubitxv6
If you can make contacts, the. Digital board, the RF coils and crystal filter etc are all working perfectly. I would think the volume control is busted. What happens if you touch the detector diode with a screw driver. It should be an uncomfortably loud sound. If not, check around the audio preamp. Next touch pin 2 of the LM386. Loud noise? - f
Hey all!
I am having a rather strange drop in sensitivity on my V6 after carrying it up to the cabin.? The unit was well padded in a cardboard box riding in the cab of the truck so it wasn't bounced around a lot.? After hooking it up I noted that the background noise was all but gone and there was no reading on the S-meter.? When a very strong signal was received I would get an S2-S3 reading and I am having to turn up the volume control much higher.? I compared some signal levels against my Yaesu FT-707 and today the background noise on 40M was at S9 and 0 on the BITX S-meter (from the AGC board) using the Nextion with Ian's 1.2 firmware.? I also compared some signals that were about S7 on the BITX and they measured +20 on the Yaesu.? Radios are using the same antenna with a switch so I can immediately switch and compare signal levels.? I feel the AGC board is still working since a very strong signal would be overwhelming if switched off.
I am up here in the middle of nowhere with only an antique 30 MHz analog scope and a meter so I'm looking for suggestions as to where to look or if I should just re-calibrate the S-meter.? I have removed the cover and checked for anything that might have jarred loose during the trip and lightly flexed the PCB and found nothing. I can still make contacts and carry on QSOs but the "quietness" disturbs me...? I have bought a used West Mountain Radio CLRdsp (should be here Monday) in my quest to kill/fight the "birdies" produced by my solar charge controllers and it also contains an amplifier so that will get my volume back up but it is more of a band-aid.
73,
Justin B.
KI5GKD
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Re: Question about voltage regulator
Hi,
If you read the datasheet for the regulator it's warned about there:
8.1.2 Raising the Output Voltage Above the Input Voltage? Because the output of the device does not sink current, forcing the output high can cause damage to internal low current paths... this diode, low current metal, and the regulator are destroyed.
I don't know how much current it can take, or how much current the rig would draw while connected, but a diode might not be a bad idea.? Just to be on the safe side.
73.
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Strange drop in sensitivity on V6
#ubitxv6
Hey all!
I am having a rather strange drop in sensitivity on my V6 after carrying it up to the cabin.? The unit was well padded in a cardboard box riding in the cab of the truck so it wasn't bounced around a lot.? After hooking it up I noted that the background noise was all but gone and there was no reading on the S-meter.? When a very strong signal was received I would get an S2-S3 reading and I am having to turn up the volume control much higher.? I compared some signal levels against my Yaesu FT-707 and today the background noise on 40M was at S9 and 0 on the BITX S-meter (from the AGC board) using the Nextion with Ian's 1.2 firmware.? I also compared some signals that were about S7 on the BITX and they measured +20 on the Yaesu.? Radios are using the same antenna with a switch so I can immediately switch and compare signal levels.? I feel the AGC board is still working since a very strong signal would be overwhelming if switched off.
I am up here in the middle of nowhere with only an antique 30 MHz analog scope and a meter so I'm looking for suggestions as to where to look or if I should just re-calibrate the S-meter.? I have removed the cover and checked for anything that might have jarred loose during the trip and lightly flexed the PCB and found nothing. I can still make contacts and carry on QSOs but the "quietness" disturbs me...? I have bought a used West Mountain Radio CLRdsp (should be here Monday) in my quest to kill/fight the "birdies" produced by my solar charge controllers and it also contains an amplifier so that will get my volume back up but it is more of a band-aid.
73,
Justin B.
KI5GKD
|
Re: Replacement for the original Raduino?
Hello Eric,
Could you please let us know the payment details for the order that was placed with us. As of now we dont have any pending orders and the delivery schedules are within a week.
However have you written to us that the Raduino was needed for a Bitx 40? Sometimes when the version is not stated then there is a chance the dispatch team would have withheld the dispatch and then written to you asking for clarification pertaining to the version for which the raduino is required.
Meanwhile we shall definitely?look into this and get back to you as soon as possible. Kindly do drop us a mail at support@... and we shall gladly assist you from there.
Sorry for the inconvenience this may have caused.
Thanks and Regards,
Thomas
HI All,
When I got my Bitx40 a few years ago, it did not come with the raduino. Tried to buy one from HFSignals, but nothing delivered since February. Does anybody else make a replacement or clone?
Thank you,
Eric / ke6mlf
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Support@...
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Scott,
Take it from PIN 1 of relay K1 and PIN 3 is RX (12v)
Raj
toggle quoted message
Show quoted text
At 14/05/2021, you wrote: Is there a simple location to grab +5 to +12V when the uBITX (v.6) enters transmit mode? I saw a method from N6QW but was hoping for something simpler.
Thanks!
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Re: CNC encoder for ubitx
All:
I have an article coming out in (I think) the June issue of CQ that talks a little bit about software. The article is an experiment to see if there is any interest in a quarterly column about software "stuff". There will be an email address at the end of that article where readers can write in and say Yay (I'd like to see more) or Nay (I've seen enough). Rich will take a look at the responses and decide if a column is a good idea. You already know how I feel about it. This encoder thing would be the type of theme for a column. Generally, each column would state a problem (How can I control 16 switches with 1 I/O pin?) and then the article would discuss one solution to it. (There is no such thing as "THE" answer in software, as it's always likely that someone can provide a better answer.)
I know some of you will be interested, but I also know that some of you would rather watch something rust. My goal is to help those who are interested and trick those who don't yet know their interested into giving it a try. After all, you can get started for less than your morning latte, but you may find an exciting new aspect of this hobby we all enjoy so much.
Regardless of the outcome, I sure appreciate Rich at least giving the idea a try.
Jack, W8TEE
On Thursday, May 13, 2021, 7:35:18 PM EDT, barry halterman <kthreebo@...> wrote:
Good information, if you know programming. I am just a dabbler and have limited skills in this area. Although, thanks for the info. Barry
On Thu, May 13, 2021, 12:06 PM Dennis Zabawa < kg4rul@...> wrote: This was just an example to show that the 100PPR encoders can be made to work.? Anyone who cares to can feel free to incorporate Jack's suggestion and make the code into a library.
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Jack, W8TEE
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Replacement for the original Raduino?
HI All,
When I got my Bitx40 a few years ago, it did not come with the raduino. Tried to buy one from HFSignals, but nothing delivered since February. Does anybody else make a replacement or clone?
Thank you,
Eric / ke6mlf
|
Re: uBITX V6 Specifications.
Evan: I think I will definitely use a heatsink for the 7805. Thank you for your help, once again. Jerry,
The display I¡¯m using uses (about) 500ma. The 7805 that I'm using can handle 1a. My thought for using the resistors is to bring down the voltage to 8v and to help dissipate the heat from the 7805.?
I¡¯m new to electronics so i¡¯m confused about you answer. Aren¡¯t the purpose of resistors to increase the resistance and thus drop the voltage? I don't understand The purpose of using diodes, in this circuit. Doesn't each diode drop the voltage by ?0.7v? If I used 6 or or 7 diodes, wouldn¡¯t that drop the voltage from 4.2v - 4.9v? Wouldn't it be better to use the resistors to also help to dissipate the heat. As I said, i¡¯m new to electronics so any time I can learn something new i¡¯m all for it. Can you explain you train of thought for me.
Thanks, 73 Robert, AG6LK
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Re: CNC encoder for ubitx
Good information, if you know programming. I am just a dabbler and have limited skills in this area. Although, thanks for the info. Barry
On Thu, May 13, 2021, 12:06 PM Dennis Zabawa < kg4rul@...> wrote: This was just an example to show that the 100PPR encoders can be made to work.? Anyone who cares to can feel free to incorporate Jack's suggestion and make the code into a library.
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Is there a simple location to grab +5 to +12V when the uBITX (v.6) enters transmit mode?? ? ?I saw a? method from?N6QW but was hoping for something simpler.
Thanks!
|
Re: micro bitx kit from 2018
#ubitx
Is your uBITX a ver-3, ver-4, ver-5, or ver-6?
_._
On Thu, May 13, 2021 at 1:15 PM John Wiener < jawodms@...> wrote: Hi
I got away from kit building for a while.? I found a ubitx kit ordered in 2018.? I know there have been some changes.?
What should I know / do before starting this kit? Circuit changes? Add-ons? etc.? Thanks!
John AB8O
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Re: micro bitx kit from 2018
#ubitx
John
Prepare for adventure. Here i have a v4, our club has lots of tips if you search for CCARC ubitx.??
First build to instructions. Many of us used Amateurradiokits.in cases that are very very nice, so then use 2 sets of instructions.?
Then if you have a v3 or v4 some mods for spurious. Most other mods relate to preference. Enjoy your build.
Curt wb8yyy
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Re: micro bitx kit from 2018
#ubitx
Look at your kit to see which version you have. It's most likely to be version 3 if you ordered it in 2018. Although there have been improvements in the newer revisions, the older ones are still quite usable and worth putting on the air. But you will likely need to make some changes.
The one mod to the v3 board that is mandatory if you live in the US is the relay replacement. Your radio won't be compliant with?FCC regulations on some bands if you don't do it because the original relays don't have enough signal isolation. Regulations vary, so in some places that mod may be only recommended rather than mandatory. You could also make the radio compliant in other?ways, such as operating it with an external low pass filter designed for the band you are using, if you don't want to desolder and replace the relays.
The other highly recommended mod is replacing some of the transistors with 2N2222 metal can transistors. That one will let you get full output on all bands, instead of having output power drop severely on the higher frequencies. There are other ways to do that, but the transistor replacement is the simplest one.
There are many other mods as well, some very useful, some less so. W8TEE already provided the link to the site that has info.
Hi John:
There should be a version number on the kit which will direct your search for board modifications. Also, check the site, as that has a lot of good information, too.
Jack, W8TEE
On Thursday, May 13, 2021, 3:15:33 PM EDT, John Wiener < jawodms@...> wrote:
Hi
I got away from kit building for a while.? I found a ubitx kit ordered in 2018.? I know there have been some changes.?
What should I know / do before starting this kit? Circuit changes? Add-ons? etc.? Thanks!
John AB8O
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Jack, W8TEE
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Re: micro bitx kit from 2018
#ubitx
Hi John:
There should be a version number on the kit which will direct your search for board modifications. Also, check the ubitx.net site, as that has a lot of good information, too.
Jack, W8TEE
On Thursday, May 13, 2021, 3:15:33 PM EDT, John Wiener <jawodms@...> wrote:
Hi
I got away from kit building for a while.? I found a ubitx kit ordered in 2018.? I know there have been some changes.?
What should I know / do before starting this kit? Circuit changes? Add-ons? etc.? Thanks!
John AB8O
-- Jack, W8TEE
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micro bitx kit from 2018
#ubitx
Hi
I got away from kit building for a while.? I found a ubitx kit ordered in 2018.? I know there have been some changes.?
What should I know / do before starting this kit? Circuit changes? Add-ons? etc.? Thanks!
John AB8O
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Evan,
I have to consider that I work without a Nextion screen and without a rotary encoder. So the noise does not come from there.
It¡¯s probably in the design of the PCB.. it' s Homebrew.
I agree that there may be a filter to put on the power lines
The "bips" de 2millis secondes goes also on power lines
see these sites:
etc..
cdt
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Re: Question about voltage regulator
On Thu, May 13, 2021 at 01:04 PM, Gerard wrote:
It was a quick answer
We can of course compensate the loss due to the diode
There are lots of schematics on the net
Gerard, I would suggest that you move the diode to the power input of the regulator.? That would also help in dropping the 12volts down by .6olts.? A small help in the power dissipation of the 5volt regulator I have powered my v5 and v6 ?BITX Raduino without the 12volt supply.? I never noticed any received signal, but it may have been there. 73 Evan AC9TU
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Gerard,
I have read in one of the threads that installing a filter and capacitor on the power feed to the Nextion screen (assuming that you are using a Nextion) helps in reducing the "click".? It is believed that the frequency changes with the screen update and the I2C signals to the Si5351 combine for the issue.? Try a 100ohm resistor in the power supply to the Nextion.? The alternative is to use a separate supply altogether for the display.
Just a suggestion.
73
Evan
AC9TU
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Hello,
Now I¡¯m asking for your help.
I have on my own homebrew? Ubitx, a beep "tic tac"? on my construction.
This comes from the Arduino¡¯s SDA and SCL signals that communicate with the SI5351 module. The frequency of these signals varies with the MasterClock setting.
I tried this on.
Capacitor on the different supply points of the circuits.
Cut the Volume tracks and put the potentiometer close to the amplifier. (With shielded cables)
Switch off the amplifier 12V track and connect directly to the 12V power supply.
Test with separate power supply for amplifier.
Disassembly of my SI5351 (Removable) and welded as close as possible to the Arduino (1 cm wires)
Si5351 Shielding.
No tested: Put the Arduino on the other side of the PCB.
No tested: 2 powers one for Arduino, other 12V? (Like no regulator 12v? -->? 5v). See my other post.
Your ideas
cdt
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Raj vu2zap
Eric Oberg
Shirley Dulcey KE1L
Gerard