¿ªÔÆÌåÓý

Date

Re: BFO

 

That's odd....?? Setting the BFO and the CW BFO in Memory Manager does the trick fine, here.? Just be sure to include the right number of figures, chiefly zeros at the far end.? "11056000" for instance.?

Please forgive me if I'm repeating what you've already tried.? Best of luck with it.



73,

Ted
K3RTA


Re: S-Meter on Nextion Display

 

Hi, Richard.

The S-meter in the CEC NX_S software will work fine though some have added a simple audio amp (LM386, etc) between a tap from the yellow (vol pot "high") wire on the audio header to Pin 7 of the Raduino header in order to get full range from the meter.? One then uses part of the Memory Manager software () to set the lower and upper range of the meter readings.

If you do take the time to staple in a second Nano processor into your build and blow additional firmware into this second Nano, then add a few wires, a small disc capacitor, and a pair of resistors, your S-meter will react a bit faster AND you will get some extra features that are neat to play with (and you don't need an additional audio amp to feed it).? Here's how: ?? This is amazingly easy to do, if you don't mind soldering wires to the Nano pin positions. It certainly takes no more work or time than it does to wire in a second audio amp for feeding the meter direct.

-73,

Ted
K3RTA

?


Re: uBITX V6 heat sink temperature

 

¿ªÔÆÌåÓý

My V6 at the power plug is seeing 350ma. This is more than double my V5 with the standard display. It would be nice to be able to turn off the display to save on current draw. It makes the new V6 not so portable for the folks that like to run on minimal current when portable.


On Dec 30, 2019, at 9:13 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:

?I believe Joel is talking about the LM7805 regulator on the Raduino.
The LM7805 is spec'd to continue working at temps as high as 150 C.

I have no idea how hot it should get on a v6 with the new display, but on the older uBitx's
the Raduino typically drew around 60ma from the 12v supply.
So about (12-5)*0.060) = 0.42 Watts dissipated as heat in the LM7805.
They figure the part rises about 19 degrees C per watt to be dissipated above the ambient air,
so 60 C does seem kind of high.? But it's not about to burn up.

Would be interesting to hear reports about how much current the Raduino on a v6 draws.

Some of the Nano's on the Raduino have been found to draw more current than others.
Some uBitx owners felt the LM7805 was way too hot, and put a heatsink on it.
The Raduino should get just as hot during receive as during transmit.

Jerry, KE7ER

On Mon, Dec 30, 2019 at 04:26 PM, Alex Netherton wrote:
Wow, when I have my SB-200 just turned on, it heats the room. When I in a long QSO, I have to open the window!

Warm finals are just a fact of life.If you are running Class B, your duty cycle is 50%, meaning that you are feeding the transistors with 20 to 25 watts, dissipating around 10 watts (or so). This will indeed heat up the heat sink, but most JFETS are rated for such temperatures. If the transistors are biased for Class AB, then you are likely putting close to 30 watts in to get 10 out.
?
Just put a hot dog on top of the finals!
Alex Netherton
?
Hide quoted text

?


On Fri, Dec 27, 2019 at 12:11 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Hi all,

I have my V6 all hooked up and calibrated and have checked into a few nets with my own home brew mic, the supplied one got bad reports, however I have noticed that the 5 volt regulator heat sink is running at 142 degrees F or 61.1 C. That seems hot to me. Anyone else?

Joel
N6ALT


Re: S-Meter on Nextion Display

 

Evan is correct. You can get a nice S-meter working in the base CEC sketch by adding a small amplifier (Ian has a circuit and descriptions on his site) and feeding the aux input. I did that, it works well, and you can adjust the meter sensitivity using Memory manager. I later added the second Nano and circuit and changed to the -S sketch to get the small audio spectrum display and CW decoder, and it also changed how the S-meter signal is developed so the small amp and aux input are no longer used. The S-meter display is virtually the same in the 2 methods, although maybe a little faster in the I2C "-S" version.

=Vic=


Re: Alternatives to Baofeng mic?

 

In my opinion all SSB transceivers benefit from audio conpressors, except for those for which the speech is already very punchy, like the excellent MFJ monobands. A compressor increases the average power but limits the microphone output to a certain level preventing also splatter. Equalization is not necessary at all as you can move the BFO to cut basses.


Il 31/dic/2019 04:09, "Curt via Groups.Io" <wb8yyy=[email protected]> ha scritto:
The Baofeng was introduced based upon its availability.? I perceive nothing special other than that.?

As the uBITX was intended for amateurs who may lack the means to purchase commercial equipment - a microphone element and push button was included in the kit.? This provides a hint that the electret type of microphone is intended.?

I confess I grabbed an old, no longer used Kenwood speaker microphone, replaced its connector, and found it drives the uBITX rather nicely.? Others in my local club with uBITX boards from the same batch found great difficulty getting enough drive with the electret microphones they had available.? (a few suggested audio mods are mentioned for this at our K3PZN uBITX website ...).?

Some are adding speech processor boards, based often on an analog devices IC.? While I use a processor on my main appliance rig - I don't so far see that one is essential for my uBITX.?

Try what you have available for a electret microphone.? If its works well enough, enjoy the rig.? if not - audio mods are around this website and others.?

Curt wb8yyy

PS - add-ons like the Jackal address transmit audio -- decide your own path!? I am content with a mostly stock uBITX except working to correct spurious, and now adding a variable bandwidth receive audio filter (nescaf)



BFO

 

For the ubitx 5 (not the earlier versions), you will want to set the BFO somewhere around 11.055-11.056 MHz as a starting point.
How do you get to 11.055 without turning the encoder a million times? I have tried uBitix Manager.


Re: How-to Request

Jack, W8TEE
 

Most of the other processors can emulate EEPROM via their libraries.

Jack, W8TEE

On Monday, December 30, 2019, 6:11:26 PM EST, Gary Anderson <gary.ag5tx@...> wrote:


Yes. You are correct. Calibration values are stored in EEPROM. Updating HFsignals firmware will not change these settings. Ian's firmware also uses the same calibration addresses (although he has added more to the memory map)
...I fear I may have inadvertently sparked a question based on one of the posts I made today. I had ported the firmware to an ARM core that does not have EEPROM.? Sorry if this caused confusion.
Rgds,
Gary

--
Jack, W8TEE


Re: Alternatives to Baofeng mic?

 

The Baofeng was introduced based upon its availability.? I perceive nothing special other than that.?

As the uBITX was intended for amateurs who may lack the means to purchase commercial equipment - a microphone element and push button was included in the kit.? This provides a hint that the electret type of microphone is intended.?

I confess I grabbed an old, no longer used Kenwood speaker microphone, replaced its connector, and found it drives the uBITX rather nicely.? Others in my local club with uBITX boards from the same batch found great difficulty getting enough drive with the electret microphones they had available.? (a few suggested audio mods are mentioned for this at our K3PZN uBITX website ...).?

Some are adding speech processor boards, based often on an analog devices IC.? While I use a processor on my main appliance rig - I don't so far see that one is essential for my uBITX.?

Try what you have available for a electret microphone.? If its works well enough, enjoy the rig.? if not - audio mods are around this website and others.?

Curt wb8yyy

PS - add-ons like the Jackal address transmit audio -- decide your own path!? I am content with a mostly stock uBITX except working to correct spurious, and now adding a variable bandwidth receive audio filter (nescaf)


Re: S-Meter on Nextion Display

 

Please verify, but I believe that the _S option is for the "Stand alone" meter function.? This uses a second Nano to do the metering as well as other functions.? An S meter using the spare analog input is included in the base CEC software.? The _S version also requires a modification to the I2C bus to connect the second Nano.

Again, I am going from memory here, so it may be incorrect.? I am sure that it is described on the Hams Key (CEC) site somewhere.? Finding information on the site can be a challenge.? I would also check ubitx.net.? Often there is better information on that site.

73
Evan
AC9TU


Re: uBITX V6 heat sink temperature

 

I believe Joel is talking about the LM7805 regulator on the Raduino.
The LM7805 is spec'd to continue working at temps as high as 150 C.

I have no idea how hot it should get on a v6 with the new display, but on the older uBitx's
the Raduino typically drew around 60ma from the 12v supply.
So about (12-5)*0.060) = 0.42 Watts dissipated as heat in the LM7805.
They figure the part rises about 19 degrees C per watt to be dissipated above the ambient air,
so 60 C does seem kind of high.? But it's not about to burn up.

Would be interesting to hear reports about how much current the Raduino on a v6 draws.

Some of the Nano's on the Raduino have been found to draw more current than others.
Some uBitx owners felt the LM7805 was way too hot, and put a heatsink on it.
The Raduino should get just as hot during receive as during transmit.

Jerry, KE7ER


On Mon, Dec 30, 2019 at 04:26 PM, Alex Netherton wrote:
Wow, when I have my SB-200 just turned on, it heats the room. When I in a long QSO, I have to open the window!

Warm finals are just a fact of life.If you are running Class B, your duty cycle is 50%, meaning that you are feeding the transistors with 20 to 25 watts, dissipating around 10 watts (or so). This will indeed heat up the heat sink, but most JFETS are rated for such temperatures. If the transistors are biased for Class AB, then you are likely putting close to 30 watts in to get 10 out.
?
Just put a hot dog on top of the finals!
Alex Netherton
?
Hide quoted text

?


On Fri, Dec 27, 2019 at 12:11 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Hi all,

I have my V6 all hooked up and calibrated and have checked into a few nets with my own home brew mic, the supplied one got bad reports, however I have noticed that the 5 volt regulator heat sink is running at 142 degrees F or 61.1 C. That seems hot to me. Anyone else?

Joel
N6ALT


Re: Alternatives to Baofeng mic?

 

¿ªÔÆÌåÓý

Is the Baofeng mic giving you bad audio, or would you just prefer a mic that is perceived to be of higher quality?

A microphone is a very simple device, and very basic mics can provide excellent audio (I have heard many great audio reports about the hand mics included with the last few Icom radios - the 7300, the 7610 in particular.), but some people don't like hand mics and prefer other options (boom or desk stand microphones).

Microphones are one of those areas where a Ham can sink a lot of money without meaningfully improving their signal. Many/most new commercial radios have elaborate equalization capabilities, but a basic rig like the uBitx lacks such niceties, opting to focus on functionality, intelligibility, and affordability.

That's my $0.02,

Ken, N2VIP

On Dec 30, 2019, at 18:35, John AE5X <ae5x@...> wrote:

?I'm new to the uBITX scene (had a V1 way back) and was wondering what other mics others are using for improved audio over the Baofeng? Or audio mods that improve the tx audio?

Tnx/73,
--
John AE5X


S-Meter on Nextion Display

 

Hi, have decided to forge ahead with a v5 and Nextion 3.2 Enhanced,
using KD8CEC's software. I have watched the videos several times, I
understand about loading the CEC firmware for v5 using Xloader, and
about installing the 32_E tft file onto the sdisk, the video makes it
all clear. Question: I see their is an NX_S option, and I do like
the S-Meter. Is this S-meter implemented in the firmware and can I
get it into the Nextion via a raduino pin, or is there a necessary
hardware addition or mod to make before this will work? Thanks - Rich
WB2GXM


Alternatives to Baofeng mic?

 

I'm new to the uBITX scene (had a V1 way back) and was wondering what other mics others are using for improved audio over the Baofeng? Or audio mods that improve the tx audio?

Tnx/73,
--
John AE5X


Re: uBITX V6 heat sink temperature

 

Wow, when I have my SB-200 just turned on, it heats the room. When I in a long QSO, I have to open the window!

Warm finals are just a fact of life.If you are running Class B, your duty cycle is 50%, meaning that you are feeding the transistors with 20 to 25 watts, dissipating around 10 watts (or so). This will indeed heat up the heat sink, but most JFETS are rated for such temperatures. If the transistors are biased for Class AB, then you are likely putting close to 30 watts in to get 10 out.

Just put a hot dog on top of the finals!
Alex Netherton



On Fri, Dec 27, 2019 at 12:11 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Hi all,

I have my V6 all hooked up and calibrated and have checked into a few nets with my own home brew mic, the supplied one got bad reports, however I have noticed that the 5 volt regulator heat sink is running at 142 degrees F or 61.1 C. That seems hot to me. Anyone else?

Joel
N6ALT


Re: How-to Request

 

Yes. You are correct. Calibration values are stored in EEPROM. Updating HFsignals firmware will not change these settings. Ian's firmware also uses the same calibration addresses (although he has added more to the memory map)
...I fear I may have inadvertently sparked a question based on one of the posts I made today. I had ported the firmware to an ARM core that does not have EEPROM.? Sorry if this caused confusion.
Rgds,
Gary


Re: nextion 2.8 installation

 

I am just in the process of handling my first Nextion a 3.5 type.

What are you doing with what software when you get the messages here?
The Nextion Editor?
Did you try anything else with it like the examples via the LTS Editor version?

How did you put the tft file one the SD card? What SD card?

The more data the more we can understand what is happening. And try to reproduce your situation.

--
PE3ES - F4VTQ - Erwin
73


Re: How-to Request

 

Not to hijack the thread, but I have a related question: does updating the firmware affect the alignment? I upgraded mine yesterday, but I did go the download and compile route because I wanted to take a look at the code.?

I suspect it does not, because the alignment values are inserted by the raduino code into EEPROM memory.

is that correct?

~Mike
KD7ZPC


Re: How-to Request

 

Ken,
I would recommend buying an inexpensive Nano 'clone' like the one used in the uBITX (you can get them for < USD $4 with shipping included on eBAY from US 'stock')? Buy one without pins soldered.
Go through some Arduino tutorials. Get a LED 'blinky' to work.? Work through the common issues of the CH340 driver installation, realizing you need to use the 'old bootloader' and sometimes issues with the USB connectors.
You will then have the experience to quickly compile and update the firmware as it progresses, plus have a Nano for you other tinker projects and no worries about 'harming' your uBITX while learning.

GitHub download is simple so you don't really need to be fully into that ecosystem.? You need to be mindful that the project needs to be in one folder/directory.
What trips up some folks is that the folder/directory must be named the same as the primary .ino file for the Arduino IDE (thankfully there is now only 1 .ino file! improvements!)
so when you download the zip file it will be named, for example, "ubitxv6-master".? You need to change to match the .ino file. For example to "ubitx_v6.3.1_code"?
(or whatever name you want, as long as it matches)? for me: it would be ubitxv6_3p1 Also deconvoluting hardware and firmware revisions.?
At one time, the zip had nested directories, this appears to be fixed too.

You can upload compiled code directly with avrdude?as Laurence does. (Great to have a script document of the command line options, although my ports seem to hop around)
But, having the source allows you to 'see' what is going on and modify to your liking.
avrdude will be a part of the Arduino IDE install.? You can get to it from the command line on a Windows, Apple OSX machine too.? I expect Pi also, but I don't have one.

Rgds,
Gary


Re: How-to Request

 

Ken,

You may find this short video useful at an introduction to the Arduino family even though it's not specific to the uBITX:


- Bill KB3T

On 2019-12-30 11:47, Ken Hansen wrote:
With my new V6 uBitx competed (Latest design, bought with case) I've
seen/heard there were some small software issues, discovered as the
units are tested. I'm not an arduino or github guru, and I suspect
many here are like me - willing to tinker, but this github/arduino
ecosystem is totally new to me.
Does anyone have a link to a document/webpage that outlines the needed steps to:
1) set up a computer to load software onto uBitx,
2) download corrected software (once available),
3) load corrected software onto uBitx,
And 4) perform any needed calibration/alignment once loaded?
I understand updated software is not available yet, But I want to be
ready when it is.
Thanks in advance,
Ken, N2VIP


Re: Need uBITX Memory Manager help?

 

Thanks guys!? This should help...
Cheers,
Jim W0CHL