Date   
For Sale - unbuilt Bitx40, uBitx Kits

Ken Hansen
 

Hello all,

I've got two unbuilt/unattempted kits for sale. Both kits are as packed by HFSIGNALS.

First up, an unbuilt Bitx40 from Dec. 2016, 2x speakers and an undrilled case from Amazon (blue & white) sold as kit, looking for $75 shipped ConUS.

Second, I have an unbuilt uBitx from Feb. 2019, asking $125 shipped ConUS.

Both kits have original invoice from HFSIGNALS.

PayPal accepted, email me direct with any questions.

Thanks,

Ken Hansen, N2VIP

Re: bitx v6 is here

Rick Green
 

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 CW offset woes

Curt
 

Bill

you have been promoting this rig for years, and now you label this as weird?  okay let me remind you what's happening. 

remember this is a dual-mode rig.  as it tunes, it displays the SSB carrier (okay where it would be).  when we key down for CW, it appropriately sets the transmit to where we are listening.  now the rig does not know whether we will speak into the microphone or do CW.  some have set their display for CW, but then the SSB would be off.  I have learned the simple math to correct for my CW positioning when I look for an op who is spotted (such as on the nice skcc list). 

enjoy your radiations!  nice to have you in the CW spectrum. 

Curt wb8yyy

Digital mode transmit via CAT but MIC-connector switches to Transmit directly - #digital #v5 #ubitx-help #cat

Erwin - PE3ES - F4VTQ
 

On the ugly build uBITx I now have the latest CEC firmware installed, and a 4-line display (2004)
I can receive and decode FT8 and WSPR via laptop running latest WSJT-x, connected via CAT.
Setup : USB connected to nano and headphone-jack from radio to audio in on internal laptop soundcard.
Works great.

Then I connected a pre-tuned antenna tuner and put the cable from laptop soundcard into the Microphone-jack.

The uBITx started clicking some relais, and went into Tx mode without outputting RF as far as I could tell.

Took all cables out and tried again, same (is noise from laptop audio out triggering Vox PTT?, but reading this forum after the issue : there is no Vox-circuit)

Tried with only cable into Mic-jack : switching to Tx a few times and then settles to Rx again.

So far I did not install the electret-mic and did not install the PTT-switch. I do not intend to do SSB/phone.

The CEC firmware should work CAT-PTT so what am I doing wrong?

Advice and suggestions highly appreciated.

--
PE3ES - F4VTQ - Erwin
73

Re: uBITX CW offset woes

Gordon Gibby
 

When I get a chance, I'll check one of my icom's and see what I do, but I suspect many rigs work exactly this way, so that it becomes easy to be right on frequency of the other station, and also hear WWV zero beat precisely at 10.000000 MHz.   If they worked some other way, WWV would not zero beat at 10.000000, or alternatively you would not be transmitting on the same frequency as the CW station you had put in the ccenter of your audio filter passband.


On Fri, Dec 13, 2019 at 5:24 PM Gordon Gibby via Groups.Io <docvacuumtubes=gmail.com@groups.io> wrote:
well, you might be right, but when you zero beat a heathkit to a 100 kHz marker, and subsequently tune in a CW signal, you will be transmitting on a DIFFERENT frequency from what your dial shows.    So I don't think you are correct for a heathkit SB-102, which I used for many many years....and still have



On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.   But here the transmit frequency shifts.  That is kind of weird.   As Vic points out: 

I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won’t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard’s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.

On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:


So, when you do CW, you don't zero beat your RECEIVER to the other station, do you?
No.   
You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency and you can hear a nice tone from the other station or 
(b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.

Either way.....you are NOT transmitting precisely where your dial says....because typically you are offset by about 800 Hz.

Precisely what you observed.   
Maybe that makes more sense?
My heathkit works the same way. 

Gordon


On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.  I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.  That is not what happens under ver 1.071.   When the dial indicates 7.0407, I am actually transmitting on 7.0399. 
Is there anyway I can easily correct this without a major software overhaul?  I am still running uBITX v 3 with a 16x2 display. 

Thanks,  Bill N2CQR

Re: Audio isolation w/ digital modes #ubitx

Erwin - PE3ES - F4VTQ
 

On Thu, Dec 12, 2019 at 06:38 AM, W4MWD wrote:
audio taper control : I had to look that up via goo-gle
Interesting idea thanks

 
--
PE3ES - F4VTQ - Erwin
73

Re: uBITX CW offset woes

Gordon Gibby
 

well, you might be right, but when you zero beat a heathkit to a 100 kHz marker, and subsequently tune in a CW signal, you will be transmitting on a DIFFERENT frequency from what your dial shows.    So I don't think you are correct for a heathkit SB-102, which I used for many many years....and still have



On Fri, Dec 13, 2019 at 5:11 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.   But here the transmit frequency shifts.  That is kind of weird.   As Vic points out: 

I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won’t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard’s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.

On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:


So, when you do CW, you don't zero beat your RECEIVER to the other station, do you?
No.   
You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency and you can hear a nice tone from the other station or 
(b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.

Either way.....you are NOT transmitting precisely where your dial says....because typically you are offset by about 800 Hz.

Precisely what you observed.   
Maybe that makes more sense?
My heathkit works the same way. 

Gordon


On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.  I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.  That is not what happens under ver 1.071.   When the dial indicates 7.0407, I am actually transmitting on 7.0399. 
Is there anyway I can easily correct this without a major software overhaul?  I am still running uBITX v 3 with a 16x2 display. 

Thanks,  Bill N2CQR

Re: uBITX CW offset woes

Bill Meara
 

Usually the freq readout on the display IS the transmit frequency, with the offset taking place in the receiver -- the receiver shifts the 700 Hz or so.   But here the transmit frequency shifts.  That is kind of weird.   As Vic points out: 

I just finished my V4 uBitX with CEC 1.10 firmware and the V3 Nextion GUI. I think the method of offsetting the transmit frequency is backwards to how CW offset should be done. Although this works, it can have bad consequences. If the other station is transmitting on 14.100 I will not hear him unless I tune the uBitX to 14.099300 if I am particular about hearing a 700Hz tone and I am using CWU, so that means I actually will be transmitting on 14.100 when I send back and he will hear me. Similarly, if I have selected CWL I won’t hear him until I set the receiver to 14.100700 and I will be transmitting back on his frequency. However, we should be indicating the actual transmit frequency, not where I have offset to hear the other station. If I was close to the lower band edge, and I wanted to call CQ on 14.000500, I would actually be transmitting 200Hz below the band limit if I have selected CWL mode. Other rigs I have used, even Allard’s sketch for the BitX40, offset the receiver by the amount of the desired tone (offset), either up or down based on if CWU or CWL is selected, so the transmitter always is sending on the dial frequency.

On Friday, December 13, 2019, 04:38:21 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:


So, when you do CW, you don't zero beat your RECEIVER to the other station, do you?
No.   
You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency and you can hear a nice tone from the other station or 
(b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.

Either way.....you are NOT transmitting precisely where your dial says....because typically you are offset by about 800 Hz.

Precisely what you observed.   
Maybe that makes more sense?
My heathkit works the same way. 

Gordon


On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.  I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.  That is not what happens under ver 1.071.   When the dial indicates 7.0407, I am actually transmitting on 7.0399. 
Is there anyway I can easily correct this without a major software overhaul?  I am still running uBITX v 3 with a 16x2 display. 

Thanks,  Bill N2CQR

Re: bitx v6 is here

Dave Dixon
 

just ordered my V6 looking forward to receiving it next year..Im hunting around for a variable cw filter..any ideas guys.,Dave G0AYD

Re: uBITX CW offset woes

Gordon Gibby
 

So, when you do CW, you don't zero beat your RECEIVER to the other station, do you?
No.   
You dial your receiver just the right amount off from the other station's zero beat so that either (a) you are set so that your transmitter will be on the other station's frequency and you can hear a nice tone from the other station or 
(b) if you have a very narrow filter, you do (a) as well, but you adjust so that the other station is PEAKED in your passband.

Either way.....you are NOT transmitting precisely where your dial says....because typically you are offset by about 800 Hz.

Precisely what you observed.   
Maybe that makes more sense?
My heathkit works the same way. 

Gordon


On Fri, Dec 13, 2019 at 3:57 PM Bill Meara via Groups.Io <n2cqr=yahoo.com@groups.io> wrote:
I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.  I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.  That is not what happens under ver 1.071.   When the dial indicates 7.0407, I am actually transmitting on 7.0399. 
Is there anyway I can easily correct this without a major software overhaul?  I am still running uBITX v 3 with a 16x2 display. 

Thanks,  Bill N2CQR

uBITX CW offset woes

Bill Meara
 

I'm trying to get my Version 3 uBITX with CEC version 1.071 to work properly in CW mode.  I have the same problem that Vic WA4THR had -- I really prefer just to have the display show the transmit frequency, with the receiver shifting to produce the desired CW tone.  That is not what happens under ver 1.071.   When the dial indicates 7.0407, I am actually transmitting on 7.0399. 
Is there anyway I can easily correct this without a major software overhaul?  I am still running uBITX v 3 with a 16x2 display. 

Thanks,  Bill N2CQR

Re: bitx v6 is here

 

Yes, you are correct, the new display is a touch screen.

Joel
N6ALT

Re: bitx v6 is here

Buddy Brannan
 

Do I understand from the instructions that the new V6 kit now has a touch screen? Or does it have lots of extra buttons?


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

On Dec 13, 2019, at 11:28 AM, _Dave_ K0MBT <davesters@...> wrote:

Very good marketing move. Sir. There are many hams that don't know how to handle an iron. One doesn't have to look past this list and see many radios that don't work because of poor assembly techniques.

Maybe someone will just have to move from a v5 to a v6 and offer their old model for cheap,.
--
73
Dave
k0mbt
Raduino bracket and Ham_Made_Keys

Re: bitx v6 is here

Dale Hardin
 

Farhan, what is involved in adding new TFT display to my V3?  Is the sketch backward compatible?

On Fri, Dec 13, 2019 at 11:30 AM Ashhar Farhan <farhanbox@...> 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:
From what I'm reading here, unless you don't want to solder there is no reason to upgrade your v5 to v6.  v6 sounds like it is basically v5 with all the connectors soldered onto the board + a pre-wired TFT display on the raduino board.  It might have slightly different traces on the mainboard, but otherwise it is the same.

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!



--
Dale Hardin
Elberta, AL 

--
Dale Hardin, KS4NS
Elberta, AL

Re: Frequency calibration V5

CR
 

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: bitx v6 is here

Anthony Gomes
 

As I see under the hood it is still v5 engine. I am tempted of doing another homebrewing of V6 version from scratch, I might share the build process step by step via youtube if anybody is interested. I just need to buy 2.8 TFT display and build/buy a new Raduino, as I don't want to yank out anything from my existing v5 build as I want kept it for reference point.

Farhan ji one more thing (as I have mentioned on my original post #73506) I notice the ubitx v6 schematic is still showing the X7 crystal as 12Mhz, I believe it's a typo and not intentional.

Re: Frequency calibration V5

Morris Ford <morrishford@...>
 

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: bitx v6 is here

 

I just can't tell you how happy it makes me to see the uBITX finally moving away from the 16X2 displays. They were way past their use by date. I placed a order for a V6 this morning making my BITX count now 5.

Joel
N6ALT

Re: bitx v6 is here

Tom, N8TPN
 

Very Nice!

The New PCB Layout offers some obvious and some not-so-obvious advantages.

The integration of the connectors onto the Main PCB greatly speeds and simplifies assembly and hookup for builders - hopefully fewer wiring errors and requests for assembly/troubleshooting  help.

The layout has some extra space at the rear of the chassis for larger heatsinks - excellent for the digital mode crowd.

The inclusion of the USB extension cable in the full package means easier firmware upgrades.

The integrated keyer and paddle jack are a nice feature - no need to add that messy pull-up resistor...hopefully there is some way to de-activate it to allow external contest-type keyer inputs.

The included fully-wired microphone is very convenient - The choice of standard 1/8" (6.35mm) stereo connector will allow the user to easily switch to digital-mode inputs. Just swap the cable.

The custom case in the full version, and front panel templates in the base version, provides for mechanically stronger and more secure assemblies with less chance of failure over time due to the movement of connections in the PCB headers and Molex (Relimate) connectors. The simple control layout and available unused front panel space should allow adequate customization of controls such as AGC and separate digital inputs.

It wasn't clear in the video if the menu functions can be accessed from the front panel tuning encoder knob as in previous versions...my fat fingered hands don't work well with small closely-spaced buttons or touch screens. Perhaps a simple cell phone soft-touch stylus attached via tether to keep it from getting lost would be handy in that case.

All-in-all an excellent upgrade!

Thanks Farhan and the entire HFSignals crew!

73 - Tom
N8TPN

Re: bitx v6 is here

Ashhar Farhan
 

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:
From what I'm reading here, unless you don't want to solder there is no reason to upgrade your v5 to v6.  v6 sounds like it is basically v5 with all the connectors soldered onto the board + a pre-wired TFT display on the raduino board.  It might have slightly different traces on the mainboard, but otherwise it is the same.

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!