Date   

Re: Bitx V6 CAT error

Greg Steele
 

After checking my I/O settings, I too have the same issue, and I found that the FT-847UNI or FT-847 choices work for Hamlib or within FLDigi. Using a Signalink USB.
Sometimes HRD, FLDigi and MMSSTV will crash after 10-15 minutes of use. When using the CAT control and the Signalink with the Icom, these problems go away.
I'm on Win10 and Win7, MintLinux, Raspbian, and can reproduce the issue across OS'.  uBitx is on the 6.1 unmodded firmware.  
Linux seems the most stable and occasionally it works with the FT-817 emulation.


On Sun, Aug 9, 2020 at 3:36 PM Grant Colgan <grantc0493@...> wrote:
Hello all.

Been playing happily with ubitx for a whole and wanted to give Digi modes a go. Seemed pretty straight forward but when I try to set up CAT control with  wsjt-x I get the error "Rig error target vfo inacessable while getting current frequency" I had set up the uBitx as follows

Usb to the uBitx (COM7)

2x aux cables to usb sound card input to output and vice versa 

Wsjt-x setup
Port Com7
Yaesu ft817
Baud rate of 38400
Ptt set to CAT
Data bits 8
Stop bits 1
Mode USB

I had followed the distructions from this website




Re: Sensitivity, Spare-Parts and Quality Questions #ubitx #v6.1 #ubitx

Gordon Gibby
 

Wow, that’s some great detective work!



On Aug 9, 2020, at 18:27, DC3AX via groups.io <ulrich.prinz@...> wrote:

Hi!

A friend of mine asked me to help her getting the ubitx v6.1 running. It was only giving very low audio, even it seems to receive. I checked all solderings and they looked good. I got some audio but a sensitivity of around -57dBm at 14.200MHz SSB @ 12dB SINAD.

It was suspichious that touching the volume knob makes the speaker "humm"... So I re-soldered some through holes around the audio circuit. I have never had such a bad solder in my life... It doesn't flow good with any of my rework solders or flux pastes. And it hadn't flown correctly when produced originally as many solder points have not soldered through the hole in the PCB. It just looked good, but never connected inside the hole. A combination of flux and lead-free solder was just sucked into the hole at many places.

After that, I got a sensitivity of -95dBm... I still had the issue, that the signal drops in and out if I touch the display or wiggle the Radioino board. So I reflowed that board, the connector on the RF boad and then I found out, that the volume knob has a broken lead. So I unmounted it, set 100R for the volume and a short for the power switch. That brings the unit to -116dBm SSB at 12dB SINAD. That is still not, what I expected to find. 

So my questions are:
Does anyone know a part number for the pot and where to order?
Has anyone measured the sensitivity of his unit and as some values to compare for me?
As this unit was one of the early v6.1 PCBs, does anyone have the same quality issues with this unit?

Thanks for any help!

73 de Ulrich DC3AX / AG1U


Sensitivity, Spare-Parts and Quality Questions #ubitx #v6.1 #ubitx

DC3AX
 

Hi!

A friend of mine asked me to help her getting the ubitx v6.1 running. It was only giving very low audio, even it seems to receive. I checked all solderings and they looked good. I got some audio but a sensitivity of around -57dBm at 14.200MHz SSB @ 12dB SINAD.

It was suspichious that touching the volume knob makes the speaker "humm"... So I re-soldered some through holes around the audio circuit. I have never had such a bad solder in my life... It doesn't flow good with any of my rework solders or flux pastes. And it hadn't flown correctly when produced originally as many solder points have not soldered through the hole in the PCB. It just looked good, but never connected inside the hole. A combination of flux and lead-free solder was just sucked into the hole at many places.

After that, I got a sensitivity of -95dBm... I still had the issue, that the signal drops in and out if I touch the display or wiggle the Radioino board. So I reflowed that board, the connector on the RF boad and then I found out, that the volume knob has a broken lead. So I unmounted it, set 100R for the volume and a short for the power switch. That brings the unit to -116dBm SSB at 12dB SINAD. That is still not, what I expected to find. 

So my questions are:
Does anyone know a part number for the pot and where to order?
Has anyone measured the sensitivity of his unit and as some values to compare for me?
As this unit was one of the early v6.1 PCBs, does anyone have the same quality issues with this unit?

Thanks for any help!

73 de Ulrich DC3AX / AG1U


Possible S-Meter circuit

Bob Lunsford
 

Found this in an old QST. Could be useful for adopting/adapting to the uBITX for an S-Meter indicator. Previous ideas in the group is to read the voltage at the hot end of the volume control. If not enough voltage, a simple amplifier should make it useful. Sorry it's skewed slightly.

Bob — KK5R

Inline image


Re: Killed TX this time...

Evan Hand
 

Tom,
Here is my 20meter CW TP1 on my v5.  The output was measured as 7.8 watts.

73
Evan
AC9TU


Re: Bitx V6 CAT error

Evan Hand
 

Grant,

For some reason, I had issues when using the FT-817 radio interface.  Not sure that it is the radio as maybe that when I changed, I reset the other parameters correctly. 

The other difference in my setup is I use 2 stop bits, Handshake: None, Split Operation: None.  This has worked for me.

73
Evan
AC9TU


Bitx V6 CAT error

Grant Colgan <grantc0493@...>
 

Hello all.

Been playing happily with ubitx for a whole and wanted to give Digi modes a go. Seemed pretty straight forward but when I try to set up CAT control with  wsjt-x I get the error "Rig error target vfo inacessable while getting current frequency" I had set up the uBitx as follows

Usb to the uBitx (COM7)

2x aux cables to usb sound card input to output and vice versa 

Wsjt-x setup
Port Com7
Yaesu ft817
Baud rate of 38400
Ptt set to CAT
Data bits 8
Stop bits 1
Mode USB

I had followed the distructions from this website




#digital #firmware #v5 #digital #firmware #v5

HB9MIR
 

I use the UBITX V5 for the digital Pactor operating mode. The properties of this mode of operation do not allow a connection to be unwound properly. The processing of the PTT via Arduino is too slow. The switching time of the PTT relay from TXRX is too slow. In my opinion, this is due to the processing of the PTT signal via Arduino. One possibility would be to control the PTT directly to the RXTX switching relay without going through the Arduino. In terms of hardware, it would be possible. What I can't do is teach the software to make this switching, TXRX, faster. What someone how to change this delay in the software ??? Thanks for your support. Arturo, HB9MIR


Re: What Happened To Versions 3, 4 and 5

Christopher Miller
 

Hello,

I also want this. I plan on buying a rig for normal work but want to get my bitx going digital. 

Chris 


Re: What Happened To Versions 3, 4 and 5

Gordon Gibby
 

Yes, I would enjoy a WSPR topic also....gordon



On Sun, Aug 9, 2020 at 11:03 AM Dennis <dennis@...> wrote:
Hi Don,
Perhaps you could start a topic on getting the uBitx to work on WSPR - I would certainly find that helpful and perhaps many others would as well.

Kind Regards,
73, Dennis W7DRW

On Mon, Aug 3, 2020 at 01:25 PM, Don - KM4UDX wrote:
If anyone wants to get their uBITX working on WSPR, just let me know. Happy to help.

Don
km4udx


Re: What Happened To Versions 3, 4 and 5

Paul Parks
 

Don,

Also would like some guidance on getting the uBitx to work on WSPR.  I have not yet searched the messages or files for instructions, so RTM comments are acceptable.

My modified V3 is doing nothing at the moment.

Regards,

Dave, W4VU


Re: RD16HHF1 power curve flattening...some

Arv Evans
 

He was never banned! 

To the best of my knowledge, no group member has ever been banned.  A few have
been put on moderation for various reasons, but none have been banned. 

Arv 
MODERATOR




On Sun, Aug 9, 2020 at 3:31 AM Slurm <42irongazelle@...> wrote:
That is so sad !!!   I suspect the real reason is that he offered PA mods, and supported modders that wanted to utilize the available power of the fets instead of keeping the radio de-tuned to below 10 watts and on one band at or below 2 watts.   The radio community mostly seems as though it wants people to advance it, not roadblock the mods on the power output, nor stop any legal mods.  If the filters can't handle the extra few watts, they can be rebuilt, and if they need to be moved outside the case, that could be done too.   When the icky hits the fan, people in catastrophic events in the 3rd world or even first world countries certainly appreciate a few more watts.  

It seems that he was banished then, right after showing that the mods could deliver wattage in excess of regular QRP, and he posted that he wanted the three of them to get their mods together for a final mod post to the group.   He assisted both John (passionfruit) and Nick (aka Nik)  with their high power mods.  Coincidence? Was he thrown off for listing his title as doctor and his resort? Really?  Was he warned first to change his ways?   So was the Dr. thrown off for a valid reason that was previously ignored till his high power PA efforts? Farhan posts make it clear he doesn't agree with mods that exceed QRP.

Were John and Nick also banned?  I hope not.  It's a shame that the three of them weren't able/allowed to get their final collected mod notes posted for all to see/evaluate. The final PA mods would have been helpful to everyone.  As I recall they were considering mods to the driver stages next.  As the Dr. pointed out once about the RD16HHF1's,, to the effect:: "" we're using 2 finals in push pull that are capable of nearly 20 watts each"".  The IRF510 is close to that also. 

It's really sad that these 3 aren't a thing here anymore.  Who does that serve?


Re: RD16HHF1 power curve flattening...some

Arv Evans
 

He was not banished!
_._


On Sun, Aug 9, 2020 at 1:36 AM Raj vu2zap <rajendrakumargg@...> wrote:
Real shame.

At 09/08/2020, you wrote:
Dr. Schmidt (K9HZ) was banished from BITS20@Groups.IO by the moderator about 1.5 years ago because (as I remember) someone complained that he used his credentials in his closing.  Some people are intimidated by the fact that some members (like him) have accomplishments that renter them experts in Ham Radio and the moderator foolishly bowed to the intimidated persons complaint.  Dr. Schmidt (K9HZ) made some major contributions to this blog before he was banished, to include updates to the uBITx power control, output section, AGC design, and a specially designed antenna tuner that he sells at Dayton every year.  I think you contact him directly from his QRZ page.
 
Greg
 
 
From: BITX20@groups.io [ mailto:BITX20@groups.io] On Behalf Of Slurm
Sent: Saturday, August 8, 2020 1:50 PM
To: BITX20@groups.io
Subject: Re: [BITX20] RD16HHF1 power curve flattening...some
 
Dr. Schmidt,

Did you, John, and Nick summarize the mods for the RD16HHF1 ?   It's seems a very important mod(s) in my view.     Would it mostly marry up with Allison's driver mods, other than the thing she did to limit output on the lower frequencies, that part of her mod could be modified to limit, but not at 10 watts.   I recall you having a mod with even higher output, that would be a great one to summarize also. 

Sincerely,

Slurm


Re: RD16HHF1 power curve flattening...some

Arv Evans
 

Not true.  Two people complained about his advertising at the end of each post.
Dr. Schmidt and myself discussed it off-group and came to an agreement that resolved
the issue.  Since then only a couple of others have remarked about it.  Recently a few
others have started adding personal information at the end of their posts. 

The BITX20 group is only loosely moderated.  Politics and religion posts are hot-buttons
that attract moderator attention, but most other posts are okay.  Exceptions might be
overly aggressive posts that are intended to attack others, or off-topic posts that run on
forever and forever and forever with no end in sight.

On a daily basis I receive 5 to 10 spam posts from various on-line sellers, or from some
lady(?) in Nigeria that wants us to hold millions of dollars for her (for a fee).  Since non-member
posts are moderated,you never see those posts unless I fail to catch them.

Arv  K7HKL   Assistant MODERATOR
_._

On Sun, Aug 9, 2020 at 12:48 AM MadRadioModder <madradiomodder@...> wrote:

Dr. Schmidt (K9HZ) was banished from BITS20@Groups.IO by the moderator about 1.5 years ago because (as I remember) someone complained that he used his credentials in his closing.  Some people are intimidated by the fact that some members (like him) have accomplishments that renter them experts in Ham Radio and the moderator foolishly bowed to the intimidated persons complaint.  Dr. Schmidt (K9HZ) made some major contributions to this blog before he was banished, to include updates to the uBITx power control, output section, AGC design, and a specially designed antenna tuner that he sells at Dayton every year.  I think you contact him directly from his QRZ page.

 

Greg

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Slurm
Sent: Saturday, August 8, 2020 1:50 PM
To: BITX20@groups.io
Subject: Re: [BITX20] RD16HHF1 power curve flattening...some

 

Dr. Schmidt,

Did you, John, and Nick summarize the mods for the RD16HHF1 ?   It's seems a very important mod(s) in my view.     Would it mostly marry up with Allison's driver mods, other than the thing she did to limit output on the lower frequencies, that part of her mod could be modified to limit, but not at 10 watts.   I recall you having a mod with even higher output, that would be a great one to summarize also. 

Sincerely,

Slurm


Virus-free. www.avg.com

--

…_. _._


Re: #ubitxv6 #firmware #ubitxv6 #firmware

Dale Parfitt
 

My first blush answer is that the meter is not AT the antenna terminals, but it is a simple matter of computing gain backwards from the last mixer (AGC detector) to the antenna terminals.

 

Dale W4OP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Mick
Sent: Sunday, August 9, 2020 10:31 AM
To: BITX20@groups.io
Subject: Re: [BITX20] #ubitxv6 #firmware

 

Interesting thread, I think I missed a fundamental principal here.
if the S meter is between the antenna and the receiver, measuring uv how does it know what frequency I’m listening too?
--
 

73
Mick VA3EPM 


Re: Presence and DC Receivers. Farhan's DC40

Dean Souleles
 

Bill,
 
Years ago when laptops and cell phones first started making an appearance in meetings, I coined the term " absent presence " - people were physically there but mentally elsewhere.
 
I wonder if there's a lesson here?
 
73,
Dean
KK4DAS
 
 

 


Re: BITX V6 CW PROBLEM REG

LAKSH MUTHU
 

Dear Reed and Evan,
    Good Day. Now I have uploaded REED's software to my UBITX V6 with my call sign in the display. Thank you all for kind help.The software is fine and CW is good. I think only missing part is " Fast Tuning". Anyway it does not affect much.
   Once again thank you all.
  with regards,
MUTHU
Vu2LMN


Re: What Happened To Versions 3, 4 and 5

Dennis
 

Hi Don,
Perhaps you could start a topic on getting the uBitx to work on WSPR - I would certainly find that helpful and perhaps many others would as well.

Kind Regards,
73, Dennis W7DRW


On Mon, Aug 3, 2020 at 01:25 PM, Don - KM4UDX wrote:
If anyone wants to get their uBITX working on WSPR, just let me know. Happy to help.

Don
km4udx


Presence and DC Receivers. Farhan's DC40

Bill Meara
 


Re: #ubitxv6 #firmware #ubitxv6 #firmware

Mick
 

Interesting thread, I think I missed a fundamental principal here.
if the S meter is between the antenna and the receiver, measuring uv how does it know what frequency I’m listening too?
--
 

73
Mick VA3EPM