Date   

Re: Any fix for V6 first character delay?

Evan Hand
 

On Sat, Oct 17, 2020 at 06:07 AM, Donnie G wrote:
Is there any fix yet for the v6 first character delay in cw mode?
You can try the firmware that Reed N has written for the stock v6 uBITX.  Search the Groups.io site for messages from him.  Here is a starting point with the links to the GitHub repository:
https://groups.io/g/BITX20/message/78757

73
Evan
AC9TU


Re: Suggestion for the NEW UBITX V7.

Bill Cromwell
 

Hi,

With my white beard and many decades of experience, CAG is a military officer. Obviously that is not the intent here. So please enlighten me what somebody's idea of hijacking an already useful term means in this context.

73,

Bill KU8H

bark less - wag more

On 10/16/20 11:36 PM, ohwenzelph via groups.io wrote:
On Thu, Oct 15, 2020 at 04:26 AM, Gerard wrote:
As an owner of a V6 I would love to know what the detailed specifics
are regarding the following:
Add CAG
Add core, capacitors, for noise of the connection of the Nextion
Modifications on some transistors of the emission chain
Changes to winding on the emission chain
thanks, sincerely
jerry aa1of


Re: Any fix for V6 first character delay?

ohwenzelph
 

I was disappointed that as I came the V6 seemed, to me, unusable for CW.
jer
aa1of


Any fix for V6 first character delay?

Donnie G <cfzepp@...>
 

Is there any fix yet for the v6 first character delay in cw mode?

Donnie / WA9TGT 


Re: Suggestion for the NEW UBITX V7.

Bob Lunsford
 

My concern is that moving the assembly of the V6, etc., to obtain parts here in the USA would also require that the toroids be wound here in America.

I appreciate much that the Indian women at HF Signals are winding the toiroids and are doing the assembly. I have wound single layer and trifilar toroids and while it is something I can do, it is tedious as I have had extensive eye surgery (three on left eye and five on right eye) due to double retinal detachment and cataracts.

The women there are expert and professional and I am more than willing to pay for them to do it: It's one of many reasons to buy the HF Signal transceivers rather than build it here and then (possibly) go through a trouble-shooting phase.

The alignment is another issue since it's ready to work out of the box and while others may see alignment as a simple task and while I could perfect the process with some time and experimentation, I'd rather just use the radio right off than go through a possible delaying process. Incidentally, I have built most of what Heathkit had in the transceiver and accessories line and such activity would be more a challenge at this point in my life than gaining a sense of accomplishment.

Therefore, even if HF Signals offers a "streamlined kit" with specific parts like PC board and unique parts, I sincerely hope that kits such as the Basic Kit and Complete Kit continue to be available.

I just sent my V6 to my mountain-topping son in California (N5DIM) and almost immediately ordered another Complete Kit for my personal use. Ease of use is a factor but the receiver in the V6 is hard to beat for being so sensitive and quiet. Congratulations in sharing such a unique radio with such simplicity of operation. For what it is, the V6 is unbeatable...!

Kudos must also go to the women at HF Signals who are, in my opinion, top-of-the line builders/assemblers. It's almost as if the toroids were machine-made. They must have achieved their own level of quality control due to the boards are top level quality both in layout and build.

Bob — KK5R

On Saturday, October 17, 2020, 1:28:21 AM EDT, Ashhar Farhan <farhanbox@...> wrote:


HF Signals is reluctantly in this business.  It doesnt make sense to move parts from Mouser, Ohio to Hyderabad, have them assembled and then shipped back to Tennessee. Why wait for them to make this move? The suggestions can all be incorporated into a single plug in-board (the audio connector and Raduino are in the same line to allow a single board to plugin). 
Between Hobby PCB and mouser all the parts can be easily procured. The hf signals boards cost twice what you will pay in components and pcb. It is just all the transport, soldering, testing and administration costs.

Unlike qcx or xeigu, bitx radios are open with hardware and software. My idea was to encourage a number of kitchen table businesses to turn out easy to understand and build radios. I hope others take up the slack.
- f



On Sat 17 Oct, 2020, 9:06 AM ohwenzelph via groups.io, <Ohwenzelph=yahoo.com@groups.io> wrote:
On Thu, Oct 15, 2020 at 04:26 AM, Gerard wrote:
As an owner of a V6 I would love to know what the detailed specifics are regarding the following:
Add CAG
Add core, capacitors, for noise of the connection of the Nextion
Modifications on some transistors of the emission chain
Changes to winding on the emission chain
thanks, sincerely
jerry aa1of
 


Re: Suggestion for the NEW UBITX V7.

Ashhar Farhan
 

HF Signals is reluctantly in this business.  It doesnt make sense to move parts from Mouser, Ohio to Hyderabad, have them assembled and then shipped back to Tennessee. Why wait for them to make this move? The suggestions can all be incorporated into a single plug in-board (the audio connector and Raduino are in the same line to allow a single board to plugin). 
Between Hobby PCB and mouser all the parts can be easily procured. The hf signals boards cost twice what you will pay in components and pcb. It is just all the transport, soldering, testing and administration costs.
Unlike qcx or xeigu, bitx radios are open with hardware and software. My idea was to encourage a number of kitchen table businesses to turn out easy to understand and build radios. I hope others take up the slack.
- f



On Sat 17 Oct, 2020, 9:06 AM ohwenzelph via groups.io, <Ohwenzelph=yahoo.com@groups.io> wrote:
On Thu, Oct 15, 2020 at 04:26 AM, Gerard wrote:
As an owner of a V6 I would love to know what the detailed specifics are regarding the following:
Add CAG
Add core, capacitors, for noise of the connection of the Nextion
Modifications on some transistors of the emission chain
Changes to winding on the emission chain
thanks, sincerely
jerry aa1of
 


Re: Enclosures

Sunil Lakhani
 

If there are enough takers for version 6 type case we can make custom case for various sizes using displays . 
The enclosure we have on our website also are compatible with wiring required which is provided with accessories.
We shall post details on using our enclosure for version 6 soon using existing case.
Best wishes
De vu3sua.


Re: Suggestion for the NEW UBITX V7.

ohwenzelph
 

On Thu, Oct 15, 2020 at 04:26 AM, Gerard wrote:
As an owner of a V6 I would love to know what the detailed specifics are regarding the following:
Add CAG
Add core, capacitors, for noise of the connection of the Nextion
Modifications on some transistors of the emission chain
Changes to winding on the emission chain
thanks, sincerely
jerry aa1of
 


Re: uBitx v 6.1 for sale

Ted
 

What else are you getting rid of?  I'm looking for a 40m qrp box similar to the 4-States QRP Club Cyclone-40 or the NorCal 40, if that's a correct reference. 

Nice build you've got there on the V6. 



-Ted



On Fri, Oct 16, 2020 at 14:14, Grover Cleveland via groups.io
<k7tp@...> wrote:
After much deliberation I have to sell some radios including my v 6.1 uBitx
This is upgraded with the 2.8" Nextion screen and the latest software in the standard black metal case.
Included is the original mic that has been modified to increase the output (remove resistor, enlarge hole).
Asking $175 including USPS shipping in the U.S.  Other countries at cost.  Paypal only.
No trades please.

Thanks,
K7TP
(write for the Paypal address please it is not the one on QRZ)


Re: W0EB.com

Jim Sheldon
 

The migration to a new server went off virtually without a hitch and the TSW website www.w0eb.com is back up.

As far as I can tell, everything is intact and as it was before.

For those that visit the site often, thanks for your patience.

Jim - W0EB
TSW Project Coordinator & webmaster


Re: Ubitx V3 - No tx issue #v3

Arv Evans
 

Rajesh  VU3RHU
Check DC and RF voltages on the finals, then backwards in the signal path 
to see where the RF is present versus where it is missing.

You can use a simple diode type RF probe to trace RF signals and a DVM 
to check DC voltages.



Arv  K7HKL


On Fri, Oct 16, 2020 at 1:45 PM rajesh huddar <pumerah@...> wrote:
Hi, my Ubitx V3 also has no TX. Rx works fine. The unit is calibrated.
Have replaced the IRF510. But still no TX.
What else needs to be checked.

Thanks

Rajesh
VU3RHU

On Wed, 14 Oct 2020, 07:44 Praba Karan, <vu3dxr@...> wrote:
Thanks all.
Sarmaji vu2zmv helped me to identify the issue. Broken gate and drain legs of left MOSFET is the issue. Refer picture attached. Sarmaji adviced me to use existing mosfet by soldering broken legs.  

On Tue 13 Oct, 2020, 11:54 PM Jonas Sanamon, <sanamon@...> wrote:
The bias pots are named RV2 and RV3.
image.png

Regards, Jonas


Den tis 13 okt. 2020 kl 19:23 skrev Praba Karan <vu3dxr@...>:
I mean bottom one of two square pots.

On Tue 13 Oct, 2020, 10:36 PM Jonas Sanamon, <sanamon@...> wrote:
Hi Praba,

I suspect that the pot you refer to as bottom pot is the drive level adjustment. 
The bias pots are of same type but the drive level pot is of a different type in my v3

regards, 
Jonas - SM4VEY

13 okt. 2020 kl. 19:02 skrev Praba Karan <vu3dxr@...>:

Please clarify whether bottom pot bias pairing with left side MOSFET?

I noted 0.9 V only on tab of left MOSFET. However during PTT, 3.6V noted in gate. Similiarly, anticlockwise movement of bottom pot do not vary current drawn.


Re: Ubitx V3 - No tx issue #v3

David Nelson
 

check that q90 rs not  dead happens when you key another transmitter near ubitx


Re: Ubitx V3 - No tx issue #v3

rajesh huddar
 

Hi, my Ubitx V3 also has no TX. Rx works fine. The unit is calibrated.
Have replaced the IRF510. But still no TX.
What else needs to be checked.

Thanks

Rajesh
VU3RHU

On Wed, 14 Oct 2020, 07:44 Praba Karan, <vu3dxr@...> wrote:
Thanks all.
Sarmaji vu2zmv helped me to identify the issue. Broken gate and drain legs of left MOSFET is the issue. Refer picture attached. Sarmaji adviced me to use existing mosfet by soldering broken legs.  

On Tue 13 Oct, 2020, 11:54 PM Jonas Sanamon, <sanamon@...> wrote:
The bias pots are named RV2 and RV3.
image.png

Regards, Jonas


Den tis 13 okt. 2020 kl 19:23 skrev Praba Karan <vu3dxr@...>:
I mean bottom one of two square pots.

On Tue 13 Oct, 2020, 10:36 PM Jonas Sanamon, <sanamon@...> wrote:
Hi Praba,

I suspect that the pot you refer to as bottom pot is the drive level adjustment. 
The bias pots are of same type but the drive level pot is of a different type in my v3

regards, 
Jonas - SM4VEY

13 okt. 2020 kl. 19:02 skrev Praba Karan <vu3dxr@...>:

Please clarify whether bottom pot bias pairing with left side MOSFET?

I noted 0.9 V only on tab of left MOSFET. However during PTT, 3.6V noted in gate. Similiarly, anticlockwise movement of bottom pot do not vary current drawn.


uBitx v 6.1 for sale

Grover Cleveland <k7tp@...>
 

After much deliberation I have to sell some radios including my v 6.1 uBitx
This is upgraded with the 2.8" Nextion screen and the latest software in the standard black metal case.
Included is the original mic that has been modified to increase the output (remove resistor, enlarge hole).
Asking $175 including USPS shipping in the U.S.  Other countries at cost.  Paypal only.
No trades please.

Thanks,
K7TP
(write for the Paypal address please it is not the one on QRZ)


Re: Suggestion for the NEW UBITX V7.

Bob Benedict, KD8CGH
 

An old example of a base transceiver with add ins is the Elecraft K2 kit. Options list:
  • KPA100 Amplifier (Kit), ugrades K2 to K2/100
  • KAF2 Audio Filter and Real-Time Clock
  • KSB2 SSB Adapter
  • KNB2 High Performance Noise Blanker
  • K160M 160M and 2nd RX Port
  • KIO2 RS-232 Interface and Aux I/0
  • KAT2 Automatic Antenna Tuner
  • KBT2 Battery
--
  73
    Bob  KD8CGH


Re: memory manager/alignment

Mitchel Rought
 

curt
thanks for the info
I realize it's not much but it still bothers me, getting old I guess


Re: memory manager/alignment

Curt
 

yes - see hfsignals instructions for your particular version.  BTW I discovered mine is 150 Hz off now - maybe seasonal drift.  great news is that for many modes it may not have much impact, except when you respond to a CW spot (we even do this in SKCC) it makes it harder to find the signal (my I still have my original first receiver HR20 -- I don't know how much it drifts but lucky to resolve 1 kHz on the dial. 

73 curt


Re: Yes, My homebrew µBitx now work!!

Gerard
 

Hello Evan, Hello all
I’ve finished turning up the amplifier. I’m going to test the amp and smeter to morrow.
I also ordered BFR transistors to replace the 3904
I took both CMS and TO50 box components.
I will see how I can install all this. I thought to drill a hole from the diameter of the TO 50 at the level of the base and weld the legs. Better see the correspondence of the CMS and weld it on the back side of the circuit. I’ll put some pictures for you.
Good weekend


memory manager/alignment

Mitchel Rought
 

is it possible to change the display frequency through memory manager, after alignment this radio is slightly off, web sdr 7.050.000, this radio 7.049.700, I realize it's not much but still bothers me


Re: Q90 #v3

 

I used the single channel version of these on another project and thought they might be good for the uBITx. https://www.onsemi.com/pub/Collateral/CM1213A-D.PDF They are small but pretty easy to solder to.

Joel
N6ALT

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