Date   

Re: Nextion Display on uBITX #ubitx #nextion

Bill Cromwell
 

Hi Aaron,

If anybody gives you a lot crap about using a keyboard refer them to me! No..I don't use a keyboard. Nobody gives me any crap for being too old fashioned <sly grin>. I see small-minded people in every endeavor. We always offer them a helping hand but do not tolerate any 'load of crap'. There is that old fashioned term again. You do not need an excuse to use a keyboard or a computer to do CW. If you need one or else have to give up CW (because you like it) then please use a keyboard and/or computer. See you on the air. I once had a nice rag chew with ham in PA - CW of course. About 45 minutes unto the QSO he told matter-of-fact that he is completely deaf! He had made a device form a speaker voice coil and 'felt' the code with his fingertips. Do whatever works for *you*.

There are so many ways to enjoy the hobby that I can't see any two hams doing it exactly the same way. And that is one of ham radio's strong points:) Most of us encourage and support one another.

I will get off the soapbox now. I need to dismantle it and use the boards to make a cabinet for my homebrew DX-100 clone <wicked grin>.

73,

Bill KU8H

On 5/20/20 5:28 PM, Aaron K5ATG via groups.io wrote:
Thanks Bill.
I am venturing into CW. Due to neurological damage that I have, I am unable to send CW, however, I can receive pretty good by ear. I'm looking into setting up a cw keyboard. My main workhorse is my most beloved Elecraft K2 QRP version. I know many people consider using a keyboard to send CW is cheating, but hey if it is the only way that I can use that mode then what can I do? Everyone has the right to have their own opinion and I would never want to change that.
I have befriended the good sir Ashhar Farhan via email. I wanted a radio to play around and experiment with such as the BITX40 but he stopped production of that. He talked me into homebrewing a BItX 20. So I ended up buying his Antuino and uBITX probably as much to support what he is doing in India as much as wanting the equipment.
--
bark less - wag more


Re: Test equipment recommendations

Doug W
 

On Wed, May 20, 2020 at 05:44 PM, Doug W wrote:
In addition to this list, it sounds like you would also enjoy https://groups.io/g/SoftwareControlledHamRadio
I forgot to mention https://groups.io/g/HBTE
 
--
www.bitxmap.com


Re: Test equipment recommendations

Doug W
 

On Wed, May 20, 2020 at 05:14 PM, <ponton.leo@...> wrote:
For the rest I’ll research and built and hack and modify. As a career programmer I can Arduino and I expect this to be a mainstay. I’ve just received a SI5351 from China and I have an OLED display so you can guess what I’ll be making. I found an ARRL article (QST?) on hacking the Chinese version Forty-9er to use a VFO and I have that kit in my drawer so that’s going to be a project soon.
In addition to this list, it sounds like you would also enjoy https://groups.io/g/SoftwareControlledHamRadio

As for a scope, I picked up a Tektronix 2235 on ebay from a reputable seller for probably less than it cost to make the box it came in when it was new.
 
--
www.bitxmap.com


Re: Test equipment recommendations

Leo
 

Wow! A mountain of great advice - thank you all so much. 

i have a RTL SDR V3 dongle which works pretty well and covers HF without an up converter. I can see on its own it will be a great diagnostic tool. I’m not scared of electronics having tinkered for many years starting with an HAC single valve receiver and a very long wire - Radio Moscow, Radio Prague and Voice of America seemed to swamp everything else. 

I’ll probably put the ‘scope on the back burner again although there were some good suggestions I’ll be looking into.

For the rest I’ll research and built and hack and modify. As a career programmer I can Arduino and I expect this to be a mainstay. I’ve just received a SI5351 from China and I have an OLED display so you can guess what I’ll be making. I found an ARRL article (QST?) on hacking the Chinese version Forty-9er to use a VFO and I have that kit in my drawer so that’s going to be a project soon.
once again thanks for all of your advice.

 


Re: TX / RX uBitx V6 relay sticking

Dale Parfitt
 

Through hole- but of course plated through. You may require a desoldering station to remove them without tearing up traces.

 

Dale W4OP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of edwarduncleshrek via groups.io
Sent: Wednesday, May 20, 2020 5:59 PM
To: BITX20@groups.io
Subject: [BITX20] TX / RX uBitx V6 relay sticking

 

Hello to the group,

 

I have a question before I dissemble the V6, how are the switching relays ( 5 in all ) are mounted to the board.  Are the relay through the hole mounting or surface type mounting?  This information will aide my plan of attack. 

 

Thanks you all for the in put and help on this problem.

 

73

 

Ed

 

 


TX / RX uBitx V6 relay sticking

edwarduncleshrek@...
 

Hello to the group,

I have a question before I dissemble the V6, how are the switching relays ( 5 in all ) are mounted to the board.  Are the relay through the hole mounting or surface type mounting?  This information will aide my plan of attack. 

Thanks you all for the in put and help on this problem.

73

Ed



Re: Nextion Display on uBITX #ubitx #nextion

Aaron K5ATG
 

Thanks Bill.
I am venturing into CW. Due to neurological damage that I have, I am unable to send CW, however, I can receive pretty good by ear. I'm looking into setting up a cw keyboard. My main workhorse is my most beloved Elecraft K2 QRP version. I know many people consider using a keyboard to send CW is cheating, but hey if it is the only way that I can use that mode then what can I do? Everyone has the right to have their own opinion and I would never want to change that. 
I have befriended the good sir Ashhar Farhan via email. I wanted a radio to play around and experiment with such as the BITX40 but he stopped production of that. He talked me into homebrewing a BItX 20. So I ended up buying his Antuino and uBITX probably as much to support what he is doing in India as much as wanting the equipment. 


Re: Content flagged as objectionable

Arv Evans
 

Al

I try to catch these and ban them every time they appear but apparently one sneaked through. 
This one is interesting because they actually joined the BITX group in order to send their spam
advertisement.

I will take care of this today.    Thanks for bringing it to my attention.

Arv
_._
_._


On Wed, May 20, 2020 at 12:41 PM Groups.io <noreply@groups.io> wrote:
Hello,

awhecker@... wishes to inform you that the following message:

https://groups.io/g/BITX20/message?id=166269430

is objectionable. They entered the following reason why it should be considered objectionable:

----
spam
----

Please take a moment to review and take action as you feel appropriate for your group.


Cheers,
The Groups.io Team


Re: Is there a complete v1->v2->v3->v4->v5->v6 hardware version history?

Evan Hand
 

Ashhar Farhan, if you do not know I do not know who would. 

Dan,
From what I have been able to find on the net, there were a number of "clones" of the HF Signals version of the uBITX.  Most were copies of the original BITX20 single band radios.  I would not purchase one that is not from HF Signals, as the information is hard to find.  This means that you want a v3 or later microBITX.

The differences between the versions are best recorded on ubitx.net.  Without going into detail, most of the differences were to fix audio issues and key clicks (v3->v4) and then spurs and harmonics issues (v4->v5) and finally to include a touch screen interface (not sure I would call it graphics, as the display is text-based)(v5-v6).  The v6 is also the first version that you can order a "full" kit that includes the enclosure from HF Signals.  There are still some enclosures for the v3-5 that you can buy, though I believe that these will get harder to find as they are no longer in production.

If you do purchase any version prior to 5, you should do a harmonics and spurs test to verify compliance with the FCC (by your call I looked up that you are in the USA).  Ubitx.net has the fixes listed there as well.

Hope this helps you with your purchase choices.  They are MY preferences/thoughts, you will need to verify for yourself.
73
AC9TU
Evan


Re: #ubitxcw #ubitxv6 More signal out on 10 meters than other bands? #ubitxcw #ubitxv6

Evan Hand
 

I have been using that mic without the capacitor.  When I checked, there was one on the board in the mic.

You just need to make the connection with either a 3.5 mm TRS plug to 4 pin jack, or cut off the 4 pin plug and connect a 3.5 mm TRS plug.  The tip is the mic, the ring is PTT and sleeve goes to the ground/common for both.

For my rigs, the mic gain is set between 4 and 5 on the dial.  That seems to provide the correct amount of output without distortion.  

Good luck and happy QSOs.
73
Evan
AC9TU


Re: Is there a complete v1->v2->v3->v4->v5->v6 hardware version history?

Ashhar Farhan
 

I dont think there was a v2. Was there?


On Thu 21 May, 2020, 1:01 AM , <pulco.ant@...> wrote:
Hello. I'm sorry to be *that guy* but I have tried multiple searches here and turned up very brief snippets. What am I missing?

I found a V2.2 for sale and I'm trying to learn the hardware differences between models.

73
Dan 
AG7GM


Re: hfsignals safety

Ashhar Farhan
 

i am mucking around with this. hopefully the bug is now gone. we are setting up a backoffice to smoothen the order tracking etc.

- f

On Wed, May 20, 2020 at 10:07 AM Reed N <greenkid336600+groupsio@...> wrote:
Looks like the cert is valid for admin.hfsignals.com and hfsignals.com, but NOT www.hfsignals.com, and thus creates a nice big warning. Pretty sure this is an issue with the cert setup, and not an actual website hack.


Reed


Is there a complete v1->v2->v3->v4->v5->v6 hardware version history?

Dan D'Eon
 

Hello. I'm sorry to be *that guy* but I have tried multiple searches here and turned up very brief snippets. What am I missing?

I found a V2.2 for sale and I'm trying to learn the hardware differences between models.

73
Dan 
AG7GM


Re: #ubitxcw #ubitxv6 More signal out on 10 meters than other bands? #ubitxcw #ubitxv6

Stephen KO4CVU
 

Evan,
As you suggested, I connected an audio (cassette player) source in series with a 1 mfd electrolytic capacitor to the microphone input. (I had recorded my voice speaking “Test Test” with my call sign on the tape.) The current consumption will exceed 1 amp on both the 10 meter and 80 meter bands at the peak volumes on the tape. Looks like a bad Baofeng microphone but I won’t know for sure until I receive the CB microphone with pre-amp. I ordered the one you suggested in your previous message the other day. Am I correct in thinking that I will need the 1 mfd capacitor with it also? I will let you know whether the new microphone solves the problem or not. 
Thank you for your help.
Stephen, KO4CVU


Re: Nextion Display on uBITX #ubitx #nextion

Bill Cromwell
 

Hi,

If you a CW user you may prefer to install the CEC software or Reed's software. I have worked on several uBitX radios for others and the stock software has been unsatisfactory in various degrees. The original V6 software rendered CW completely unusable but I think that has been fixed now.

By all means try your radio 'as shipped' and if you are satisfied continue to enjoy it. My V3 has very few mods with the CEC software being the biggest change.

73,

Bill KU8H

On 5/20/20 9:46 AM, Aaron K5ATG via groups.io wrote:
Thanks, everyone for the replies and the explanations.
I agree I want to give the stock configuration a go for a while. I want to learn the characteristics of the radio before I start changing it.
--
bark less - wag more


Re: uBitx V6 GNDREF Connection #v6 #ubitxv6 #ubitx-help

Reed N
 

I see GNDREF on T1, T2, T3, and T4 in the v6 schematic, but I went ahead and tested continuity on TP1, and sure enough, it conducts to GND at DC. Only paths are through caps (open at DC) and T2 inductor to GNDREF, so I guess I was wrong!


Reed


Re: uBiTX #v6 - First steps after assembly #v6

Reed N
 

Hi Urs,

Evan Hand kindly pointed out that the correct resistor value is just 125, not 125k. If you heard tones, it doesn't matter that much to be on the conservative side, but good to set the record straight.

If you look at https://github.com/reedbn/ubitxv6/blob/input_output_debug/ubitxv6.ino#L188 you can see what tones should play under which conditions. I forgot about the SPI touch. Ground the SPI MISO to stop the touch button from thinking it's pressed, since then it will read all 0s. Alternatively, you can delete the "checkTouch" call and hard code that value to NotPressed.


Reed


Re: Nextion Display on uBITX #ubitx #nextion

Aaron K5ATG
 

Thanks, everyone for the replies and the explanations. 
I agree I want to give the stock configuration a go for a while. I want to learn the characteristics of the radio before I start changing it. 


Re: uBitx V6 GNDREF Connection #v6 #ubitxv6 #ubitx-help

Evan Hand
 

I went back and checked the v3, v4, v5, and v6 schematics.  All are the same with only 2 GNDREF points on T2 and T4.  In the case of T4, it would need to be at the same level as the rest of the board ground in order for the radio to work (Both of the IF amps need it for either input or output).  For T2, the antenna connection is drawn connected to the common ground, not GRNREF.  Based on this, I do not see any distinction between them.  It may have been a holdover from a pre-v3 design, or a simple typo with the copy-paste function when Ashhar Farhan created the schematics.  I have not taken my units apart to look, however, I am confident that the shield connection of the antenna goes to the common ground for the board.

May I ask the reason for your question?  It is better to know how the answer would be used to ensure that we can give you the information that you want.

73
Evan
AC9TU


Re: Nextion Display on uBITX #ubitx #nextion

Evan Hand
 

Reed,

Thank you for the summary and all of the posts you make on this board.  I can say I read everyone from you and get insights from all.  

I do have 3 Nextion uBITX, 2 v4, and 1 v5 with various size screens.  Your comments as far as the Nextion devices are correct, and I agree that you should start with the stock stuff, get it going, and then start the upgrade journey from there. 

Again Thank You!
73
Evan
AC9TU