Date   
[BITxV6] Rcvr audio quality & diagnostic processes

Andy_501 <andrew.webb.501.ve4per@...>
 

Propagation here at my qth is and has been very poor for a long time.

In the documentation it states startup setup menu on power up and adjust
for 10MHz base ref freq exactly then set the BFO freq.

I am unable to get a base ref freq of 10 MHz to start with; mine will
only adjust to 10500. I have set BFO to 11.055.

I am unable to hear strong HF white noise and/or any of the CHU Canada
or WWV time broadcasts but I can obtain a couple of AM broadcast
stations; however the demodulated audio not being in AM mode is Donald
Ducky sounding but partially intelligent albeit rather weak both on
built in speaker and/or on ext powered amplified USB speaker connected
via the SPKR jack.

I am unable to tune through either side of the signal to get to get rid
of the donald duck sounding?? quality audio signal to listen to.

Seems as though audio passband is so narrow or restricted that listening
to a full sideband { 300-3000 Hz} is not possible. Is there a
calibration or software adjustment I can make on an immediate or test
basis using the Arduino immediate editor to adjust this. I am not very
happy with the receive so far.

I have the Arduino IDE installed per online instructions but not experienced
in using it regularly yet. (haven't got enough practical time/experience to sort
out the 17M unselectable fix yet even.

 Also I noticed when I set the freq to anything below 1 MHz like 920KHz,
990Khz or 680 KHz and save it the VFO indicator adds an extra zero in
the display so 990AM KHz would appear as 9.9MHz on the display but the
audio signal is the 990 AM audio. If I select 1290 KHz?? AM the VFO
display reads correctly and audio is what I expect to hear (except for
the water barrel or Donald Ducky audio quality).

I have a kiwiSDR registered on sdr.hu under my callsign name and it can
produce reasonable sigs for WWV and CHU yet the BITXv6 doesn't when I
compare it.

Any suggestions? all help/tips gratefully accepted.

73 de ve4per / Andy

Re: split the group

Bob Bennett
 

Farhan has said that his radios are for experimenters. I just got a v6, still having a 20 and two others in various stages of undress next to my work bench. Now I am interested in v6 but seeing the post about the older radios I an incentive to go back to the other three. 

   But I got into ham radio to learn stuff. But, maybe that’s just me ;-)
--
Bob
NZ2Z

Re: UBitX V6 Flrig rig xml file

Bob Bennett
 

For my other radios and raspberry pi, I just use a $4 sound dongle available at computer stores, Hamfest sand online. 
--
Bob
NZ2Z

Re: split the group

Arv Evans
 

There is some information that is common to all versions, or to multiple versions. 
Splitting the group would defeat the purpose of a general information discussion
group. 

Threads can be used to isolate specific topics, as long as the threads are not
being hijacked with off-topic posts. 

Arv
_._


On Mon, Jan 6, 2020 at 6:49 AM <dgclifford@...> wrote:
is it not time to split this group into  v1to 4 , v5  and version 6   i have no interest yet i v6 but wading through v 6 infois a waste of time

Re: CW Audio High Pitched and Thin #cw

John (vk2eta)
 

Hello Dean,

I noticed your post remained without replies.

In the CEC software there is a separate setting for the VFO in CW mode.

Go to settings and select Adjust CW VFO.

Hope that helps.

73, John

Re: UBITX6 Will Not Select 17 Meters

Bob Bennett
 

Farhan,
   I assume you will sell the boards separately?

Bob  NZ2Z

On Jan 6, 2020, at 11:01 AM, Ashhar Farhan <farhanbox@...> wrote:


The changes have been pushed. The new boards will have the fixes.

- f

On Mon 6 Jan, 2020, 7:43 PM Jim Sheldon, <w0eb@...> wrote:
Erwin Serle,
Did you not read my posts all the way.  I thought that was what I said the person should do.  Besides, KD8CEC and Nextions don't work with the V6 Raduino which uses an ILI9341 TFT Touch screen display, NOT a NEXTION as it comes from the factory.

Jim Sheldon

------ Original Message ------
From: "Erwin Serlé via Groups.Io" <waterwin2@...>
Sent: 1/6/2020 6:02:37 AM
Subject: Re: [BITX20] UBITX6 Will Not Select 17 Meters

@Jim Sheldon, in this case it would be advisable to read and note the original calibration settings before doing the actual install of a new firmware.

Also as far as I understood the findings of KD8CEC a new firmware does not change the stored calibration values.

The KD8CEC Memory Manager software could be used to read the original values before doing any changes.

--
PE3ES - F4VTQ - Erwin
73


--
Bob
NZ2Z

Re: uBITX V6 heat sink temperature

Jerry Gaffke
 

I'd guess it does get to 125 C for some of those putting a big display on an old Raduino 
with no heat sink for the LM7805.

But probably won't destroy anything, just shut down when the LM7805 gets too hot.

Jerry, KE7ER




On Mon, Jan 6, 2020 at 10:32 AM, James Giercyk wrote:

"recommended operating temp is a junction temp of 125 C"
 
If your running at 125C, you've got bigger problems.  ;)

Re: UBITX6 Will Not Select 17 Meters

Reed N
 

@Steve,

The "17m won't work" isn't that 17m doesn't work, it's that the quick select button for 17m doesn't work. If you don't want to update the software, you don't have to - just tune to 17m manually. Inconvenient, yes. Radio-breaking flaw, no. However, this particular issue is one that you can fix right now yourself. Ashhar said, "The changes have been pushed", so if you go to https://github.com/afarhan/ubitxv6, download the repo (green button on the right, choose download zip), and upload the revised code to your Arduino nano, the 17m button should work as expected. If you don't know how to program an Arduino, there are tons of tutorials online, and I'm sure you can find that information with a quick search for "how to program an Arduino nano".

I (and I expect many others) bought the uBitx specifically because it can be reprogrammed and easily modified. It's a bit rough around the edges, but I fully expected that coming in. If I wanted a high quality radio that "Just Worked" out of the box, I'd buy from the big three - Yaseu, Icom, or Kenwood - since they have large teams of experts designing and testing their radios extensively, whereas HFSignals is tiny by comparison. It sounds like your expectations may have been different, which is unfortunate. The uBitx is designed to be a decent radio with a strong emphasis on cost and hack-ability, not a best quality or polished final product. To quote the "About" page https://www.hfsignals.com/index.php/about-hfsignals/:

 With the BITX40, we hope to recover that ground and encourage more and more people to get on air, modify, experiment, build and learn. ... The HF Signals kits are supplied as-is without any promise that they will work to any particular specification. That said, thousands of BITX transceivers supplied by HF Signals work across the world. There is an active and very informative forum for learning and getting help that is entirely driven by the builder community.
The BITX and uBITX lines both have had a number of issues - just scroll through this forum and you'll find lots of problems, but also lots of solutions. It's constantly improving because people donate their time, but that doesn't mean everything is perfect out of the box. In particular, the v6 is a brand new release, which means you're on the bleeding edge - the new software hasn't seen as much testing and improvement as the software for earlier version. I fully expect that by this time next year, most of these issues will be fully resolved or worked around, if you don't mind waiting.


Reed

Re: split the group

Dale Hardin
 

I just tried this.  You will see "Unfollow this Topic" at the bottom of the email.  Click on it and you will be asked to confirm.  No more messages from that topic after that.

On Mon, Jan 6, 2020 at 12:29 PM Dale Hardin via Groups.Io <joe.dale.hardin=gmail.com@groups.io> wrote:
If you go to your Subscription, Email Delivery, go to Advanced Preferences at bottom of page, click Following Only, click First Message Also.  You will then get the first message of each new topic.  If you do not Follow the topic, you do not see any further messages on that topic.  Look at Muting and Following at the Help button at the top of the home page for detailed info.
--
Dale Hardin, KS4NS
Elberta, AL



--
Dale Hardin
Elberta, AL 

--
Dale Hardin, KS4NS
Elberta, AL

Re: UBITX6 Will Not Select 17 Meters

Steve Sawicki
 

So how about the existing boards that we received at Christmas time, I believe that ALL should hear as to what will be for them.
Regards.
Steve
AB2ET/4

Re: uBITX V6 heat sink temperature

James Giercyk <jim@...>
 

"recommended operating temp is a junction temp of 125 C"

If your running at 125C, you've got bigger problems.  ;)

Do or Do Not. There is no try.

--- jgaffke@... wrote:

From: "Jerry Gaffke via Groups.Io" <jgaffke@...>
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX V6 heat sink temperature
Date: Mon, 06 Jan 2020 09:12:27 -0800

Evan,

>  The above is based on the input voltage staying below the maximum value of 18 volts. 

Where do you see 18 volts?


Yes, the LM7805 voltage regulator on the Raduino goes into thermal shutdown if it gets too hot. 
After awhile the regulator will cool off enough and the radio will start working again.

I don't see in the datasheet exactly what "too hot" is, but maximum
recommended operating temp is a junction temp of 125 C.
It can get up to 150 C before damage occurs if you accidentally
hit it with a propane torch (the "absolute maximum" temperature).
Maximum voltage into an LM7805 is 25v, but in our application anything
much above 12v into the Raduino may cause the LM7805 to get too hot.



The hfsignals.com home page says:
"Any common 3 ampere 12 linear volts supply or a set of eight AA batteries will provide enough power for this transceiver."
Never does say what the maximum recommended voltage into a uBitx v6 is.
I would not go above 13.0 volts without thoroughly investigating how hot all the parts are getting,
especially the driver transistors and emitter resistors in the transmit power amp.

I would add a 3 Amp fuse to that power supply, especially if it was capable of more than 3 Amps.
Otherwise a brief mistake may cause a smoking crater in the uBitx board somewhere.

Eight fresh AA alkaline batteries might be enough to operate the radio, but only for an hour or so.

There appears to be a connector in the v6 for an internal battery and a rudimentary battery charging scheme,
but no mention of what kind of rechargeable battery that should be.

I would go with a bank of four 18650 lithium ion cells, plus an LM2940T-12 low dropout regulator
between that battery bank and the main uBitx board (but not the Raduino, but see below).
When charging, the supply voltage into that battery bank should be limited to a max of 4.2v*4cells=16.8 volts.
The lithium ion cells should be "protected" from being shorted or overly charged or underly discharged. 
The IRF510's could be powered directly from the batteries (but through a power switch!) 
without going through the 12v regulator.

Since the Raduino draws so much power, it would be worth going to a switch mode buck converter
to replace the LM7805 out there.  Could be powered directly from the lithium ion cells along with the IRF510's.
Should be possible to build one that doesn't mess with reception, but a $1 switcher off ebay may be too noisy.

Jerry, KE7ER


On Mon, Jan 6, 2020 at 03:58 AM, Evan Hand wrote:

Failure of the device can be a concern, however in the Raduino the thermal shutdown should kick in before damage to the regulator.  This will cause erratic operation of the Raduino, rather than damage.  

The above is based on the input voltage staying below the maximum value of 18 volts.  Over voltage will damage the device and cause the potential short failure.  Of course more than just the Raduino would likely be damaged in that case.

My recommendation is to add a heatsink to the regulator, especially if your are going to supply more than 12 vdc to the main board (the power amp supply is not relevant).  It is low cost and will help in keeping it below thermal shutdown.

Above are my thoughts based on my experiences.  Yours can be different.
73
Evan
AC9TU

Re: split the group

Dale Hardin
 

If you go to your Subscription, Email Delivery, go to Advanced Preferences at bottom of page, click Following Only, click First Message Also.  You will then get the first message of each new topic.  If you do not Follow the topic, you do not see any further messages on that topic.  Look at Muting and Following at the Help button at the top of the home page for detailed info.
--
Dale Hardin, KS4NS
Elberta, AL

Re: split the group

Wayne Leake
 

my last dialup BBS was maybe 24Kb.
 but last BBS was on the internet.
 and forums work better for ham radio I think.
 Wayne WA2YNE

Re: UBITX6 Will Not Select 17 Meters

Steve Sawicki
 

Good Day Erwin,
I am beginning to believe that  my trust and belief in the UBITX  concept has been shaken and  was a bit  ahead of reality.
Yes the "V6" that I ordered is actually a V5 with a  touch screen display that was rushed  with "production" and shoddy packaging (I spent $209)  with discovering that the "Kit" was assembled in a rush with many missing items (yes I have a good junk box) that was able to compensate for missing and bent metal.
But the item that I was surprised and disappointed  me  that right out of the box was that the Firmware has a BUG with 17 meters  and will require a  new load is extremely troubling.
I have been trying to fallow the various routes to HOW to DO correct the BUG and unfortunately it has me totally confused I attempted to understand how to implement the "KD8CEC Memory Manager software" with total confusion.
It is my personal belief that  after spending the monies to  buy the product that the producer should provide a CLEAR and EASY SOLUTION that can be easily implemented by the average individual.
Yes I have a "assembled " V6  that at this point have put it on the shelf until the smoke clears .
Regards.
Steve
AB2ET/4
 

Re: Thanks & an apology

Wayne Leake
 

 I wish I had not let mine expire also.
 however, I don't really need it now, just be nice to still have it.
 Wayne WA2YNE


On Mon, Jan 6, 2020 at 9:37 AM Tominaz <tomfromphx@...> wrote:
That 2nd phone was tough, ATT kept us in KC for 3 weeks studying for it. I had 2 jokers I was having to mentor for it and were they Noobs, sorry I let that one expire. I was also repairing CB gear 
and that really pissed the hams in the labs. TI research labs

Re: split the group

Andy_501 <andrew.webb.501.ve4per@...>
 

Yes that would make things a little easier in the subject line have the board model you are discussing (example [BITX20] [BITX40] [BITXv?] [BITXv6] etc ) in the subject line then design a mail sort filter and msg folder structure  (ie like Thunderbird) transfer incoming emails for each separate board type to it's own folder.

That way you wouldn't miss anything: general interest posts would be in normal inbox and separate board model  folders with only the emails applicable to the specific board under discussion. If you have no interest in other boards just bulk mark them as read periodically.


On 2020-01-06 11:50, Eric Cooper wrote:
Another approach is to set your email preference to "email each message separately", then use your mail reader effectively:
1. create a filter to put all BITX20 email in its own incoming folder
2. automatically remove the topics you're not interested in as part of the filtering (or use a search / mark / delete all sequence each time you check that folder)
Details will depend on your mail reader, but the above is easy in gmail for example.

On Mon, Jan 6, 2020 at 12:42 PM Doug W <dougwilner@...> wrote:
On Mon, Jan 6, 2020 at 07:49 AM, <dgclifford@...> wrote:
but wading through v 6 infois a waste of time
Skipping that this is a 15-1/2 year old list originally started to discuss Farhan's BITX20 design and has evolved into a home for all his BITX designs, you might be happier doing what I suggested below and usually paste as a response every time this topic comes up when there is a new version of Farhan's classic.


Go to https://groups.io/g/BITX20/editsub and set email to a level you can live with. I like just the daily summary but many prefer none.  Then use the topic view https://groups.io/g/BITX20/topics on the website and read what you are interested in and the list reads almost like a forum.  The search could use some work but at least this converts the fire hose to a drinkable level.
 
--
www.bitxmap.com

Re: split the group

MadRadioModder
 

#-topics......


MRM

 


On Jan 6, 2020, at 1:17 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:

Go for it.
Create  uBitx-v5-KD8CEC-Nextion-phone-only
or whatever on groups.io or facebook or a 2400 baud dialup BBS.

I'll be staying right here.

Jerry, KE7ER



On Mon, Jan 6, 2020 at 05:49 AM, <dgclifford@...> wrote:
is it not time to split this group into  v1to 4 , v5  and version 6   i have no interest yet i v6 but wading through v 6 infois a waste of time

--

…_. _._

Re: split the group

ecc
 

Another approach is to set your email preference to "email each message separately", then use your mail reader effectively:
1. create a filter to put all BITX20 email in its own incoming folder
2. automatically remove the topics you're not interested in as part of the filtering (or use a search / mark / delete all sequence each time you check that folder)
Details will depend on your mail reader, but the above is easy in gmail for example.


On Mon, Jan 6, 2020 at 12:42 PM Doug W <dougwilner@...> wrote:
On Mon, Jan 6, 2020 at 07:49 AM, <dgclifford@...> wrote:
but wading through v 6 infois a waste of time
Skipping that this is a 15-1/2 year old list originally started to discuss Farhan's BITX20 design and has evolved into a home for all his BITX designs, you might be happier doing what I suggested below and usually paste as a response every time this topic comes up when there is a new version of Farhan's classic.


Go to https://groups.io/g/BITX20/editsub and set email to a level you can live with. I like just the daily summary but many prefer none.  Then use the topic view https://groups.io/g/BITX20/topics on the website and read what you are interested in and the list reads almost like a forum.  The search could use some work but at least this converts the fire hose to a drinkable level.
 
--
www.bitxmap.com

Re: uBITX V6 heat sink temperature

Evan Hand
 

I miss read the data sheet.  The actual input max is 35.  I had looked in the wrong column

I apologize for the error.

73
Evan
AC9TU

Re: split the group

Doug W
 

On Mon, Jan 6, 2020 at 07:49 AM, <dgclifford@...> wrote:
but wading through v 6 infois a waste of time
Skipping that this is a 15-1/2 year old list originally started to discuss Farhan's BITX20 design and has evolved into a home for all his BITX designs, you might be happier doing what I suggested below and usually paste as a response every time this topic comes up when there is a new version of Farhan's classic.


Go to https://groups.io/g/BITX20/editsub and set email to a level you can live with. I like just the daily summary but many prefer none.  Then use the topic view https://groups.io/g/BITX20/topics on the website and read what you are interested in and the list reads almost like a forum.  The search could use some work but at least this converts the fire hose to a drinkable level.
 
--
www.bitxmap.com