Date   

Re: bitx v6 is here

Ashhar Farhan
 

By morse reader, I actually meant software that reads out the screen in morse code.
I had fooled around with many morse decoders. Nothing really works on the bands. CW skimmer is the only thing that works under contest conditions.
So, if you want a morse code decoder that really works well, can adapt to any radio and needs no special hardware, then, spend a month, 20 minutes a day and practice at 30 wpm. 
- f

On Sat 14 Dec, 2019, 9:56 PM splat1956, <dnrabin7@...> wrote:
Hi
This is very exciting. I have been thinking a long time but have not purchased one because I was afraid that the soldering and wiring instructions would be confusing. There have been many posts by confused builders.

This sounds great. Is there a morse code decoder built in or coming soon ? Your earlier post said " I have added a morse reader already. I shall finish integration to the user interface soon."
Please let us know when that is incorporated. I am unlikely to upgrade the software-firmware once it is working and that would be a very nice feature.

Great idea on the calibration with a known station signal for people without test equipment.

Thank you very much for this great upgrade !

David W9PH


Re: bitx v6 is here

John AE5X <ae5x@...>
 

On Fri, Dec 13, 2019 at 03:41 PM, Dave Dixon wrote:
just ordered my V6 looking forward to receiving it next year..Im hunting around for a variable cw filter..any ideas guys.,Dave G0AYD
I'll probably be ordering one of these:
https://qrpguys.com/qrpguys-active-600hz-audio-filter

Here's another option if you want to spend more:
https://www.sotabeams.co.uk/variable-bandwidth-filter-modules-ssb-cw/

John AE5X
https://ae5x.blogspot.com/


Re: bitx v6 is here

splat1956
 

Hi
This is very exciting. I have been thinking a long time but have not purchased one because I was afraid that the soldering and wiring instructions would be confusing. There have been many posts by confused builders.

This sounds great. Is there a morse code decoder built in or coming soon ? Your earlier post said " I have added a morse reader already. I shall finish integration to the user interface soon."
Please let us know when that is incorporated. I am unlikely to upgrade the software-firmware once it is working and that would be a very nice feature.

Great idea on the calibration with a known station signal for people without test equipment.

Thank you very much for this great upgrade !

David W9PH


NIB-uBITx Version 3, Un-Built

Kevin Gilot NZ1I
 

I have for sale an AS NEW In Plastic Shipping container uBitx Version 3. It was produced Prior to May, 2018 as it has the TDA2822 Audio Chip soldered to the PCB.

It is Un Built and AS New. Received 01/10/2018.

Asking Price : $90.00 and $5.00 for shipping. Total: $95.00 Shipped to US Addresses. If international buyer, then actual shipping cost will be applied.

Accept: PAYPAL. Money Order, or Check.  Please allow time for MO/Check to clear bank before shipping.

Please send any questions to kevinemtid at sbc global dot net .

Thank you Farhan for making a Great Rig! I am still working on my Bitx 40.  Yes I am a bit Behind in my projects! But I Plan on acquiring a newer version uBitx in the future.. 

73, Kevin NZ1I


Re: Frequency calibration V5

Evan Hand
 

I have not used it, so cannot attest to the accuracy.

To help speed up the process you might want to read this thread and try the calibration spreadsheet.

https://groups.io/g/BITX20/message/72183?p=,,,20,0,0,0::Created,,calibration+spreadsheet,20,2,0,34330593

A take away from this that using the search function of the messages is one of the best ways to find out if someone else has already gone through the issue.  Being a relatively long time user of this site, and reading most of the messages, I can see that the same problems keep coming up.

I would suggest that a new member guide be part of the prerequisite for membership.  Part of that instruction should be the best way to find information on the sire.  This would be both helpful to the new member, and reduce the amount of rehash that seems to go on.  I can state that having to reiterate prior solutions to new members does get old after 3 or 4 times.  Calibration is one of those that keep coming up.  I had to use the search function myself to find the above thread.  It would have sped up the process for Morris if he knew about that feature in Groups.io.

Above are my thoughts, yours may be different, and that is OK
73
Evan
AC0TU

73
Evan
AC9T


Re: uBITX CW offset woes

Bill Cromwell
 

Hi Gordon,

Either way we setup the dial is right. Either way is wrong. If we use it the wrong way. As we have both said, we have to know how the radio in front of us works if we are going to have good results. That means we don't have any part of our emission outside the band AND our signal is where the other ham can hear it. For SSB we must present the right sideband, too.

Once upon a time I got a headache sorting it all out. At that time the headache medicines had a commercial showing Thor's hammer inside a human head striking an anvil complete with lightning strikes. If you remember those you will know it was at least a week ago:)

73,

Bill KU8H

On 12/13/19 8:35 PM, Gordon Gibby wrote:
Aargh.  I may be wrong here!   If I am, my apologies, it makes my head spin a bit.   I’ll have to go fiddle with the radio and try it out.
--
bark less - wag more


Re: Frequency calibration V5

Morris Ford <morrishford@...>
 

Hey Chuck,
Sounds like your experience is quite a lot like mine. One difference is that I have a digital frequency meter. 
I use that to transmit on a known frequency and then compare it to the frequency on the meter. The biggest problem I had 
was that I never was able to get any movement of indications during calibration. I was forced to do the calibrate
 a little then check where the frequency was after that calibration

The biggest problem I had using the calibrate for a small number then check, then calibrate again and check, over and over.
That procedure did move the frequency but in a very random way. For example, it would be a couple of thousand off, like xmit 28,000,300 and meter
28,003,678 and I would move by +100 in the calibration. The result would be somewhere around the target frequency but sometimes above the target and sometimes below.
I would then calibrate again moving by -100 and it would not come back to the prior setting. Also if I did this with small shift numbers like 5 to 10 the results were very random.
Finally, I just kept calibrating over and over with random small numbers until I just happened to land on a number that was less that 30 cycles off and left it that way.
I am pretty sure that when I do the BFO calibration the frequency stuff will be off.

The largest issue is that calibration does not work like the documentation states in terms of being able to shift calibration while observing where
the calibration is. Because of this lack of function the repeated calibration method is very difficult due to the random effect of 
calibration based on the number input during calibration. My suspicion is that there is a calculation problem when trying to come up with an actual
frequency change.

By the way I was using a calibration in the 10 meter area to keep the power level down going to the frequency meter.

Maybe this stuff will help move to discussion about calibration forward a little.

Morris
K7LSV


On Fri, Dec 13, 2019 at 3:04 PM CR <maccluer13@...> wrote:
The firmware instructions for calibration for ver 5 appear to be incorrect. I achieved calibration by many iterations of the following: Tune to 10.000 MHz on the dial. (WWV will actually probably be 1.5 kHz lower.) Go to Settings, then Calibration. (The unit will go into TX.) Rotate tuning to increase the offset number shown to say 10. Exit settings, then exit menu. Check where WWV is now. Repeat until zeroed. 

During these iterations you may have to intersperse going to Settings, Calibration, Bfo to lower the audio spectrum band to where you are able to hear WWV clearly. 
 
If you are out of range of WWV you will need a replacement 10 MHz source.

After calibration you then need to place the Bfo correctly within the filter. Unfortunately, the firmware does not quite move the calibrated frequency in parallel, so you may have fine tune calibration again.  

I would appreciate hearing about a faster method.

Chuck w8mqw

On Fri, Dec 13, 2019, 13:46 Morris Ford <morrishford@...> wrote:
I neglected to say:
This a new just built v5. It has CEC firmware v 1.20.
IT has a nextion 3.2 display.

Any help greatly appreciated.

Morris
K7LSV


On Fri, Dec 13, 2019 at 9:31 AM Morris Ford via Groups.Io <morrishford=gmail.com@groups.io> wrote:
I am trying to calibrate a V5 box using a frequency meter. I need someone to interpret the instructions for that in the user manual for CEC software. I tried just transmit and adjust and not the ing happens. I tried into calibrate and transmit and the adjust and nothing happens. 
Any help?

Morris
K7LSV


Re: #ubitx #ubitx-help #v5 #calibration Calibration procedure needed #ubitx #ubitx-help #v5 #calibration

Dale Hardin
 

The best advice I can give is to go to hfsignals and ubitx.net and read the calibration info.  I searched on "how to calibrate ubitx" and got links to both.  That info, along with what you have, should get your unit calibrated.  If you have a specific problem during calibration, come back to the list.  Dale

On Sat, Dec 14, 2019 at 1:02 AM Przemek <przemek.naganski@...> wrote:
Anyone?



--
Dale Hardin
Elberta, AL 

--
Dale Hardin, KS4NS
Elberta, AL


Re: bitx v6 is here

G1KQH
 

For those who like Paypal security when ordering, the 2.8" displays are awash on ebay.

Here is one link I found:

https://www.ebay.co.uk/itm/240x320-2-8-SPI-TFT-LCD-Touch-Panel-Serial-Port-Module-with-PCB-ILI9341-H-es/392512009182?hash=item5b6389f3de:g:HHUAAOSwArFbz85E


73 Steve

G1KQH


Re: V4 TX problems and new finals #ubitx-help

 

If you have adjusted the bias then GATE cannot be 0V.

Check voltage on R97 and 98 both sides of the resistors and see what you get.

When KEY down the TX has RF in CW mode and readings will go haywire.


At 14/12/2019, you wrote:
opps (sorry, hit enter too soon)

q94

D  15/15/7+-
G  0/0/-.09
S  0/0/0

q95
D  15/15/7->8+-
G  0/0/-.10
S  0/0/0

With key down, the Gates move around a bit.

Thanks so much for all help here!!!!!!

[]  


Re: #ubitx #ubitx-help #v5 #calibration Calibration procedure needed #ubitx #ubitx-help #v5 #calibration

Przemek
 

Anyone?


Re: V4 TX problems and new finals #ubitx-help

Anthony Gomes
 

Did you changed the setting of those "Blue" pots RV2 & RV3 after changing the IRF510. Even if you have no worries you could have reduced the gate voltage (remember turning those pots clockwise reduces the voltage/current  and anti clockwise increases them). since the output of U2 is toggling between 0 & 5V while TX your 5v regulator is still alive.

If you have not changed the setting of those pots RV2 & RV3. Then I would suggest to check the voltage reading at both side of R97 & R98.

I feel you are very close to fix your radio, next task will be to fix the Gate voltage/current for those replaced IRF510. Please note I am referring to Gate "voltage/current" but the accurate way is to set the "Current". I personally feel the voltage reference is easy for quick check because for current check you need to set your multimeter in series with your radio power supply.

73
Anthony
VU3JVX


Re: V4 TX problems and new finals #ubitx-help

Don - KM4UDX
 

opps (sorry, hit enter too soon)

q94

D  15/15/7+-
G  0/0/-.09
S  0/0/0

q95
D  15/15/7->8+-
G  0/0/-.10
S  0/0/0

With key down, the Gates move around a bit. 

Thanks so much for all help here!!!!!!


Re: V4 TX problems and new finals #ubitx-help

Don - KM4UDX
 

Thank you!!!! For a Liberal Arts major, that means a lot!!!!

I tested U2 and it toggles between 0 and +5 on RX to TX. And the bias was set at ~100ma per 510.

I did more tests on the IRFs using +15v for PA+

Resting RX,     TX no mod,     TX mod key down

q:94

D  15/15/7+-


Re: V4 TX problems and new finals #ubitx-help

Anthony Gomes
 

Don, you did a good job. I won't worry about Q90 as you must have seen the document says not to worry about small variation. But I find it unusual that you don't see any Gate voltage for Q94/95 it should be around 4+ volts. Since you are not getting it for both the MOSFET  can you check if there is any voltage at 5v regulator U2 output pin, it should be 5V.

But if I remember correctly you did set the gate voltage to 100mA after changing the IRF510.

73
Anthony
VU3JVX


Re: V4 TX problems and new finals #ubitx-help

Don - KM4UDX
 

Evan, Raj, Jerry, + Co.

I feel like I just finished Lab Class for Electronics 101.  My lab notes are attached for credit. 

All the transistors measured with V+12.01 in TX mode w/no modulation and no PA V+ (lift the brown wire).
Results follow your measurements, except three.
1&2:    Q94/95 Gates = 0 vs your 4.14.  When I apply PA V+ (connect brown to +15v), the Drain = 15, Gate =0, Source=0.
Note: I checked U2, and output toggles 0/5 between RX/TX.
3:        Q90 Emitter is 2.8 vs your 3.4.


Re: bitx v6 is here

Buddy Brannan
 

Hi,

I haven’t found calibration instructions. Assembly, circuit descriptions (which are fantastic by the way), yes…but somehow I’ve missed the calibration instructions.


Buddy Brannan, KB5ELV - Erie, PA
Email: buddy@brannan.name
Mobile: (814) 431-0962

On Dec 13, 2019, at 9:58 PM, Ashhar Farhan <farhanbox@gmail.com> wrote:

We have left the old traces, connectors etc in exactly the same place. The software is backwards compatible with the previous versions. If your board has 12 mhz, you have to just edit that one line to change the second IF.
I have also written a new calibration rountine that makes it easy to calibrate without needing any instrumentation in the shack. You set the dial to the frequency of a known station, get into calibration mode, and then keep spinning the tuning knob until you are zero-beat with the known signal.
73, f

On Sat 14 Dec, 2019, 4:43 AM Rick Green, <rtg@aapsc.com> wrote:
What I think he meant, and what I was wondering, is whether you added any new
thru-holes for easier imstallation of some common mods.
Specifically, the tx/rx LEDs that came with the custom case kit, and the N8DAH
AGC board. Have you designed in thru-holes and solder jumper so that these can
be installed without having to scrape, cut and solder the fine traces?

On Fri, 13 Dec 2019, Ashhar Farhan wrote:

All the cables and connectors of v5 are preserved as it. The only thing you need to do is to swap the 16x2 LCD for a tft display.Unfortunately, we are selling the boxes only as a part of the kit. These
boxes are so heavy that the extra money is mostlt the freight charge.

On Fri 13 Dec, 2019, 10:27 PM Cory King, <cory@boxcatindustries.com> wrote:

What I'm wondering is, now that all the connectors are soldered into the board, will the v6 board have thru-holes on it to solder in audio cables? That way it is easy to hook up all those
soundcard daughterboards for digital modes and/or hook up some of the Auto Gain Control cards I see floating around? Would be cool to have strategically placed thru-holes on it to hook up some
of the pan-adapters I've seen around as well.

Anyway, this seems like a pretty good evolution of this radio!
--
Rick Green N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
Citizens United ruling, and move to amend our Constitution to firmly establish
that money is not speech, and that human beings, not corporations, are persons
entitled to constitutional rights.

http://www.MoveToAmend.org





Re: bitx v6 is here

Dale Hardin
 

Did you have to re-design the Radiuno connector locations to fit the new display?

On Fri, Dec 13, 2019 at 8:58 PM Ashhar Farhan <farhanbox@...> wrote:
We have left the old traces, connectors etc in exactly the same place. The software is backwards compatible with the previous versions. If your board has 12 mhz, you have to just edit that one line to change the second IF.
I have also written a new calibration rountine that makes it easy to calibrate without needing any instrumentation in the shack. You set the dial to the frequency of a known station, get into calibration mode, and then keep spinning the tuning knob until you are zero-beat with the known signal.
73, f

On Sat 14 Dec, 2019, 4:43 AM Rick Green, <rtg@...> wrote:
What I think he meant, and what I was wondering, is whether you added any new
thru-holes for easier imstallation of some common mods.
   Specifically, the tx/rx LEDs that came with the custom case kit, and the N8DAH
AGC board.  Have you designed in thru-holes and solder jumper so that these can
be installed without having to scrape, cut and solder the fine traces?

On Fri, 13 Dec 2019, Ashhar Farhan wrote:

> All the cables and connectors of v5 are preserved as it. The only thing you need to do is to swap the 16x2 LCD for a tft display.Unfortunately, we are selling the boxes only as a part of the kit. These
> boxes are so heavy that the extra money is mostlt the freight charge.
>
> On Fri 13 Dec, 2019, 10:27 PM Cory King, <cory@...> wrote:
>
>       What I'm wondering is, now that all the connectors are soldered into the board, will the v6 board have thru-holes on it to solder in audio cables?  That way it is easy to hook up all those
>       soundcard daughterboards for digital modes and/or hook up some of the Auto Gain Control cards I see floating around?  Would be cool to have strategically placed thru-holes on it to hook up some
>       of the pan-adapters I've seen around as well.
>
>       Anyway, this seems like a pretty good evolution of this radio!
>

--
Rick Green  N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
  Citizens United ruling, and move to amend our Constitution to firmly establish
  that money is not speech, and that human beings, not corporations, are persons
                        entitled to constitutional rights.

                        http://www.MoveToAmend.org






--
Dale Hardin
Elberta, AL 

--
Dale Hardin, KS4NS
Elberta, AL


Re: bitx v6 is here

Ashhar Farhan
 

We have left the old traces, connectors etc in exactly the same place. The software is backwards compatible with the previous versions. If your board has 12 mhz, you have to just edit that one line to change the second IF.
I have also written a new calibration rountine that makes it easy to calibrate without needing any instrumentation in the shack. You set the dial to the frequency of a known station, get into calibration mode, and then keep spinning the tuning knob until you are zero-beat with the known signal.
73, f

On Sat 14 Dec, 2019, 4:43 AM Rick Green, <rtg@...> wrote:
What I think he meant, and what I was wondering, is whether you added any new
thru-holes for easier imstallation of some common mods.
   Specifically, the tx/rx LEDs that came with the custom case kit, and the N8DAH
AGC board.  Have you designed in thru-holes and solder jumper so that these can
be installed without having to scrape, cut and solder the fine traces?

On Fri, 13 Dec 2019, Ashhar Farhan wrote:

> All the cables and connectors of v5 are preserved as it. The only thing you need to do is to swap the 16x2 LCD for a tft display.Unfortunately, we are selling the boxes only as a part of the kit. These
> boxes are so heavy that the extra money is mostlt the freight charge.
>
> On Fri 13 Dec, 2019, 10:27 PM Cory King, <cory@...> wrote:
>
>       What I'm wondering is, now that all the connectors are soldered into the board, will the v6 board have thru-holes on it to solder in audio cables?  That way it is easy to hook up all those
>       soundcard daughterboards for digital modes and/or hook up some of the Auto Gain Control cards I see floating around?  Would be cool to have strategically placed thru-holes on it to hook up some
>       of the pan-adapters I've seen around as well.
>
>       Anyway, this seems like a pretty good evolution of this radio!
>

--
Rick Green  N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
  Citizens United ruling, and move to amend our Constitution to firmly establish
  that money is not speech, and that human beings, not corporations, are persons
                        entitled to constitutional rights.

                        http://www.MoveToAmend.org





Re: uBitx V5 For sale

Ken Simmons
 

It’s sold.

11881 - 11900 of 84791