Re: I find the Transmit audio is a bit muffled has anyone else found this?
Hi Mike,
The muffled audio is more likely due to the crystal filter passband rather than the mic amp. I've noticed this on another station myself.
Moving the 12 MHz oscillator (BFO) up in frequency could be a solution to allow more high frequency audio modulation through the filter. The filter bandpass is centred on the lower side of the BFO.
Scope for experimentation!
Cheers,
Gerard - VK2IO
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I find the Transmit audio is a bit muffled has anyone else found this?
I have 2 BitX40s one on 40 meters and the other is converted to 80 meters. I talk often with a group of amateurs on 80 meters mostly using a TS830s so they have a clear idea of my audio. When I use the BitX40/80 they say the audio is a bit muffled. I have 2 mics that I can use, one is a realistic CB mic that has an electret element in it and the other is an old dynamic mic that I have removed the dynamic element and substituted the electret element that came with the kit. I have recorded my own audio by transmitting into a dummy load and receiving on another rig, I have to agree the audio is a bit muffled on both rigs and with both mics. The realistic mic is a bit better than the converted dynamic mic. Now to the questions.
Has anyone modified the audio amplifier to improve the transmit audio quality? if so what did you change?
Also I would like to increase the gain of the mic amp but as I am very rusty on my electronic theory I am not sure on how to go about it. All advise gratefully received.
--
Mike VK3XL
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Re: Raduino_v1.13 with scan function released
There is a confusion in instruction? page.
Line number 15 function button red wire line number 66 function button orange wire. Please clarify how t.o connect function button it is A2 or A3 Red or orange. Soundar VU2RJW
On Fri, May 26, 2017 at 6:51 AM, Allard PE1NWL <pe1nwl@...> wrote: Just released raduino_v1.13 which includes the frequency scanning functionality as suggested by Paul KC8WBK.
Download it from
Apart from the scanning function some other improvements were implemented as well:
- added functionality so that the user can set the CW timout value via the SETTINGS menu
- added decimal point to the VFO for better readability, like so: A 7.123.4 LSB
- simplified calibration routine and cleaned up the code to preserve memory space
Please read the updated user instructions at:
73 Allard PE1NWL
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Re: Raduino_v1.13 with scan function released
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Re: Software question, possible feature request
Instead of "Scan range", I meant Tuning Range.
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Software question, possible feature request
I have a mobile radio built that I do not intend to add a function button to. It is a radio that I want to keep simple and I don't want the user to be able to switch to USB or CW by mistake.?
I would like to be able to set the functions in the sketch by commenting, uncommenting or changing values so that the radio starts up with the same values/function settings every time.
The settings that I would like to modify are VFO drive setting, LSB frequency offset and Scan range.
Can I replace line 165 with
int LSBdrive = 2;? ???
I found USB_OFFSET but did not find a LSB_OFFSET.? Can I calibrate LSB with a line of code somewhere?? Apparently it is offset using calibrate()?
Can I replace line 195 with
int TUNING_RANGE = 300; // tuning range (in kHz) of the tuning pot? ???
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Re: Scan feature, need coding help
Just released raduino_v1.13 which includes the frequency scanning functionality as suggested by KC8WBK. Many thanks Paul for this great idea! Download it from Apart from the scanning function some other improvements were implemented as well:
- added functionality so that the user can set the CW timout value via the SETTINGS menu
- added decimal point to the VFO for better readability, like so: A 7.123.4 LSB
- simplified calibration routine and cleaned up the code to preserve memory space
Please read the updated user instructions at: 73 Allard PE1NWL
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Raduino_v1.13 with scan function released
Just released raduino_v1.13 which includes the frequency scanning functionality as suggested by Paul KC8WBK. Download it from Apart from the scanning function some other improvements were implemented as well:
- added functionality so that the user can set the CW timout value via the SETTINGS menu
- added decimal point to the VFO for better readability, like so: A 7.123.4 LSB
- simplified calibration routine and cleaned up the code to preserve memory space
Please read the updated user instructions at: 73 Allard PE1NWL
|
The unit receives. So the tuning unit is working.
Can you adjust tuning and get variation in frequency?
I suspect so since you say that both SSB and CW are working.
Does the background light up? Does the display show a soft glow?
If not, is it installed correctly? The proper orientation is covering the main
board. The wrong orientation will have the display at 180 deg. from the main board.
On the radiuno there is a blue pot. it is covered up when the display is installed correctly.
This adjusts contrast. Disconnect power. Pull the display out and turn the pot all the way one way.
Reinstall the display and power up the unit. The display will show two lines of blank squares or
will be totally whitish from the background light. Do the same thing only turn the pot all the way the other way.
The opposite thing will happen -- either all squares or all whitish.
If you can get these things, all is well. Turn the contrast to all squares and back off slowly a little bit.
The numbers and characters should then appear. Adjust the unit slowly until all is well to your eyes.
The blue pot really should be installed on the reverse side. Then adjustment is easy. Now it is a bit of a pain
as you must power up and down the unit for each adjustment. Mind you, it can be done with power on all
the time, but it is a bit risky to do so as the display must be disconnected and reconnected all the time.
john
AD5YE
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it is only a few USD incl. shipping
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CH340/CH341 is no problem on OSX just download the right driver and install it !
problem with a USB-Cable is also easy fixed....buy a cheap Nano incl. cable from China?
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Re: BITX40 Microphone options
Try this:
I used a $5 USD Baofeng microphone.
73
John M
KF6EFG
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The extra SMD cap could be for C107 (0.1 uf) which was found to be missing from some boards that were shipped.
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it's true, some Nano clones have quality problems especially missing bootloaders or bad soldering, but looking on the price difference, less than 2€ including shipment from china against about 20€ without shipment for an original Nano, I always use the clones and ?order a bunch of them as spares. I never had one which I was not able to make it run. And even if one would be totally broken, just discard and take the next one for 1.70€.
73 de Armin, DJ2AG
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Good Lord guys, ? You got a working radio for $59.00 and now you want to pick nits. ¡°Real¡± Arduino or not is serves the purpose of acting as a VFO. ? v/r Fred W4JLE ? ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Daniel Isaza
Sent: Thursday, May 25, 2017 07:51
To: [email protected]
Subject: Re: [BITX20] usb cable ? The Nano clone even uses a different serial to USB chipset - CH340/CH341 which is an issue when using Arduino on OSX.
73 Dan HK4DEI ? On Thu, May 25, 2017 at 6:38 AM, W9ZIM <darrendude@...> wrote: On Thu, May 25, 2017 at 01:34 am, Master Ice wrote: the arduino board on the raduino is a cheap clone it¡¯s a poor quality socket.
Really?? It's not a genuine Arduino??? That's a little disappointing if it's true.
--
Darren W9ZIM
?
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Hopefully you got both of them working.
Jack, W8TEE
From: Master Ice <special@...>
To: [email protected]
Sent: Thursday, May 25, 2017 1:27 PM
Subject: Re: [BITX20] usb cable
Hi Jack.
?
I have also been using Arduino clones for years but the only two I have
ever had problems with, connectivity-wise have been those used on the Raduino
boards.
I have two HFSigs Raduino boards and both have very poor USB sockets.
They are very tight to plug into and also seem shorter than normal so more
of the plug is outside the socket so to speak.
As I said in my previous post, both worked after a bit of extra oomph was
given to get the plug to mate with the socket.
?
I also agree with you that the extra cost for HFSigs to use genuine devices
would make the project far more expensive.
?
Dale G4IPZ
?
Sent: Thursday, May 25, 2017 1:32 PM
Subject: Re: [BITX20] usb cable
?
I've been using Nano
clones for years and have never had an issue. Is the clone causing an issue? If
it is, you can always cut out/desolder the cheap socket, buy a "real" Nano and a
quality socket, and reinstall it. I don't recall anyone having an issue with the
Nano itself or its socket. Also, I remember the genuine Nano was around $25. I
think I would be more disappointed if the BITX40 price jumped $20 than the fact
that a viable clone was being used.
Jack,
W8TEE
?
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Hi Jack.
?
I have also been using Arduino clones for years but the only two I have
ever had problems with, connectivity-wise have been those used on the Raduino
boards.
I have two HFSigs Raduino boards and both have very poor USB sockets.
They are very tight to plug into and also seem shorter than normal so more
of the plug is outside the socket so to speak.
As I said in my previous post, both worked after a bit of extra oomph was
given to get the plug to mate with the socket.
?
I also agree with you that the extra cost for HFSigs to use genuine devices
would make the project far more expensive.
?
Dale G4IPZ
toggle quoted message
Show quoted text
Sent: Thursday, May 25, 2017 1:32 PM
Subject: Re: [BITX20] usb cable
?
I've been using Nano
clones for years and have never had an issue. Is the clone causing an issue? If
it is, you can always cut out/desolder the cheap socket, buy a "real" Nano and a
quality socket, and reinstall it. I don't recall anyone having an issue with the
Nano itself or its socket. Also, I remember the genuine Nano was around $25. I
think I would be more disappointed if the BITX40 price jumped $20 than the fact
that a viable clone was being used.
Jack,
W8TEE
?
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Re: BITX QSO Night, Sunday, May 28, 9pm Local Time, 7.277 MHz
Yeah I hear them really strong here in Oregon. That is why I moved up to 7.180 last Sunday.
?
?
?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]]
On Behalf Of KC8WBK via Groups.Io
Sent: Thursday, May 25, 2017 6:11 AM
To: [email protected]
Subject: Re: [BITX20] BITX QSO Night, Sunday, May 28, 9pm Local Time, 7.277 MHz
?
They are Spanish language hams. Miami? Mexico? I don't know.
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My thoughts exactly.? The other night I got through a small pile up on W9IMS, a special event station, and was so happy with my $59 dollar wonder I was almost ready to sponsor my own dollar per voice QSO contest.
toggle quoted message
Show quoted text
On Thu, May 25, 2017 at 07:53 am, Jerry Gaffke wrote:
At $59, I consider this a kit that just happens to have most of the parts already soldered?to the board. ?Some assembly required. ?Batteries not included. ?Those upset about not finding?name brand relays and arduinos and such?might check out the KX3.
?
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I have had a few Nano knockoffs that weren't happy with my system. However, running the drive app in the Drivers subdirectory has always fixed the problem after a reboot of the system.
Jack, W8TEE
From: ac2pl via Groups.Io <jeffbonanno@...>
To: [email protected]
Sent: Thursday, May 25, 2017 10:32 AM
Subject: Re: [BITX20] usb cable
Hi All,
I had an issue with one knockoff nano on one computer (hard to recall the combination of the two but the board was not recognized by the computer/IDE) and following the procedure laid out here:
worked. Hope this might help someone out there.
jbb ac2pl
Jeffrey Bonanno, Ph.D., AC2PL
--------------------------------------------
Subject: Re: [BITX20] usb cable
Date: Thursday, May 25, 2017, 8:32 AM
I've
been using Nano clones for years and have never had an
issue. Is the clone causing an issue? If it is, you can
always cut out/desolder the cheap socket, buy a
"real" Nano and a quality socket, and reinstall
it. I don't recall anyone having an issue with the Nano
itself or its socket. Also, I remember the genuine Nano was
around $25. I think I would be more disappointed if the
BITX40 price jumped $20 than the fact that a viable clone
was being used.
Jack,
W8TEE
? ?
? From: Daniel Isaza
? Sent: Thursday, May 25,
2017 7:50 AM
? Subject: Re: [BITX20]
usb cable
Totally
true Darren.
The Nano clone even uses
a different serial to USB chipset - CH340/CH341 which is an
issue when using Arduino on OSX.
73
Dan
HK4DEI
On Thu,
wrote:
On Thu, May 25, 2017 at 01:34 am,
Master Ice wrote:
the arduino board on the raduino is a
cheap clone it¡¯s a poor quality socket.
Really?? It's not a genuine Arduino???
That's a little disappointing if it's true.
--
Darren
W9ZIM
|
Gerard VK2IO
Soundararajan Ra.
Allard PE1NWL