Thanks a lot Farhan!
Can't wait to put my hands in a sBitx!
: )
Cheers,
Rafael
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On 6/30/22 00:30, Ashhar Farhan wrote: People,
I am writing a short manual for the sbitx. I just started it but in the spirit of "Share early, share frequently", I am editing it online on google docs.
You can follow my progress at
Comments are welcome.
- f
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Assistance required for new UBitx V6 purchaser please,
30/6/22
To :- bitx 20 user group? + others who have recently forwarded? me correspondence on other ubix issues.??
Assistance required for new & fairly "green"??UBitx? V6? purchaser please,
I have assembled full kit? but need the following answered please :-? ?( advise if connections same as for the next model up specified as per data from interim manual? just located below >>? ??
..................................................................................................................................................
1. There was no instructions for V 6? & I can't figure out correct polarity for the 3 to 5 Amp? DC supply please. ? ? ? ? ? ? ( I have nearly been caught out with popular Guitar Sound effect units that have ? ? ? ? ? ? centre pin negative instead of usual centre pin polarity +? ,? ? ? ? ? ? ? so don't want to destroy my unit on first power-up !!!
2. there? were extra wire plug connectors linked to fly leads , but no explanation as to use. I have connected up ones listed to be affixed , but not these extras as pictured below? I have seen the corresponding? plug in points on main circuit board but don't know what they are for as no explanation came with kit for these.
3. There was also a white plastic tool that looks a bit like a small ball-point pen but without any ink tube ? ? ? ?but there again there were no details as to what it is for .
?& 4? no statement nor diagram specifying which of front plug -in connectors did what on V6? ??? ? ? ? ? ?Is it the same as for next model up the?Sbitx v1.01 ref. as listed below >>
Any help in explaining the supply polarity ,socket layout & use of these extras in kit would be appreciated.?
Please send info to my email address below, so I can get started using the ubix? V 6 properly .
Very many thanks in anticipation ,? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( refer picture &?Sbitx v1.01 details below >>>> ) Cheers,?
From :brendondreaver@...?
New Zealand Amateur? ZL1OO
-------------------------------------------------------------------------------------------------------- Data just released below is for next model up in sophistication
ie for model Sbitx v1.01 =
IMPORTANT: Before powering on, it is vital to check the polarity of the power pin. The provided DC jack should have the center pin connected to +ve and the outer barrel connected to the Ground.
There are three phono jacks on the front panel: 1. The left jack is for the microphone. The TIP is microphone, RING is PTT and the SLEEVE is GND. This arrangement allows you to use regular microphones. 2. The middle jack is for the earphones/headphones. The standard headphones or earphones that come with mobile phones should work. 3. The right side jack is for the key/keyer. The TIP is Dot, the RING is Dash and the SLEEVE is the Ground. You can also use the microphone¡¯s PTT as a straight key. The setting for the kind of key plugged in is described in the Operating CW Section. Plug in the headphones into the middle jack on the front-panel. The standard Phone/PC handsets and headphones will work well. Choose a headphone that is comfortable for long hours of working. The demands on the headphones in a contest or weak signal work are very different from those of a HiFi music listening for pleasure.
The straight key should be plugged in to the right most jack on the front-panel. The wiring for the straight key is : (Tip : Key switch; Ring: Nothing; Sleeve: Ground) [Drawing] You can switch to using an Iambic keyer. To do this, attach a keyboard and type: \cwinput keyer [Enter] The keyer is wired as follows: (Tip: Dash, Ring: Dot, Sleeve: Ground)
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Re: UBITX v6 spazzes out when TX on 40m LSB
Tim:?
There are those who have even installed 0.01 MFD capasitor from each side of the mic connector to ground.?
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On Jun 29, 2022, at 10:14 PM, Curt via groups.io <wb8yyy@...> wrote:
?Tim
Possibly if it's a very short feed to the efhw that could be the issue. The ubitx can be more sensitive than many rigs. So try various things, including earth connection if it can be short compared to a quarter wave length. I concur RF is escaping antenna or feedline, and getting back onto something attached to the raduino.?
Curt
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People, I am writing a short manual for the sbitx. I just started it but in the spirit of "Share early, share frequently", I am editing it online on google docs. You can follow my progress at
Comments are welcome. - f
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Re: UBITX v6 spazzes out when TX on 40m LSB
Tim
Possibly if it's a very short feed to the efhw that could be the issue. The ubitx can be more sensitive than many rigs. So try various things, including earth connection if it can be short compared to a quarter wave length. I concur RF is escaping antenna or feedline, and getting back onto something attached to the raduino.?
Curt
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Re: RPI Pico as Raduino CPU
Hi, Ashok
Here is something to get you started.
/Best Regards
Ravi/M0RVI
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On Wed, 29 Jun 2022 at 14:02, VU3KFK <ashok.das81@...> wrote:
HI experts,
I am just curious if anyone has tried to make a Raduino from RPI Pico. It is now cheaper than Arduino Nano (at least in India, have not checked other country yet. Pardon me if I am wrong). I think it is now the most viable candidate for the replacement of Arduino nano in Raduino. I have one lying in my table with SI5351 connected to it. I asked one of my coder friend to work on it but he is also busy and could not manage time. If anyone here already tried it.
Ashok-VU3KFK
--
I'm here to add more value to the world than I'm using up.
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Re: UBITX v6 spazzes out when TX on 40m LSB
Tim,
Yes, on the coax.? Where to place the ferrite on the coax depends on whether you have a tuner connected to the antenna.? Then the ferrite needs to be after the tuner.? If it is a resonate end-fed, I would put it where the coax enters the house and then another at the uBitx.
These are suggestions.
73
Evan
AC9TU
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Re: UBITX v6 spazzes out when TX on 40m LSB
On Wed, Jun 29, 2022 at 09:11 AM, Evan Hand wrote:
Tim,
I had that issue with my v4 uBitx connected to an Off Center Fed Dipole (OCFD).? The problem is RF getting into the Nano.? It is made worse by an SWR mismatch but is still there if there is any common mode current on the coak coming into the shack.? I fixed it with snap-on ferrites (I did not want to take down the coax to make a true chock).? To improve the RF elimination, I also added small ferrites to the power, mic, and key inputs.
As in any shack, a good earth ground is needed.
I have since acquired 4 more uBitx that includes 3 v6 radios.? None have the problem since I added the ferrites and ground.
73
Evan
AC9TU
?Thanks for the input Evan, do you put the ferrites on the coax? In this case my antenna is an end fed dipole. Tim N7LVB
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Re: UBITX v6 spazzes out when TX on 40m LSB
Tim,
I had that issue with my v4 uBitx connected to an Off Center Fed Dipole (OCFD).? The problem is RF getting into the Nano.? It is made worse by an SWR mismatch but is still there if there is any common mode current on the coak coming into the shack.? I fixed it with snap-on ferrites (I did not want to take down the coax to make a true chock).? To improve the RF elimination, I also added small ferrites to the power, mic, and key inputs.
As in any shack, a good earth ground is needed.
I have since acquired 4 more uBitx that includes 3 v6 radios.? None have the problem since I added the ferrites and ground.
73
Evan
AC9TU
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Re: uBitx V6 random tuning Jump
Hi Ashok, I use the N8ME with the VU3GAP mods.? It is the one that I recommend for the v6 uBitx. /g/BITX20/files/uBITX_6_N8ME_2_VU3GAO_Mods.zipAs Gary said, multiple updates can be used on the stock firmware, with the N8ME being the most popular.? If my memory serves, Reed's firmware was designed initially to fix CW issues and then for blind Ham use.? Some options can be selected at compile-time, as all do not fit in the Nano.? You can search for upgrades in the messages section of this reflector if you do not like the choices in Gary's linked post.? All are free and open source. 73 Evan AC9TU
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UBITX v6 spazzes out when TX on 40m LSB
My antenna is tuned to a 1.2:1 SWR match. When I key down and try to talk the radio opens the menu and spazzes out.
I¡¯m running KD8CEC firmware and a nextion 2.8 display on a ubitx v6
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Re: uBitx V6 random tuning Jump
Welcome Ashok, That's an artifact of the momentum code, settings for the encoder in the factory firmware. Folks have enhanced the firmware for the Nano to overcome some of the operational shortcomings for their needs. Open source code, you can make changes. I use Reed's firmware, have yet to try Mark's. (Mark's with the enhancements seems to be the promoted firmware as of late) see more info: /g/BITX20/message/92105
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uBitx V6 random tuning Jump
Hi all,
I just powered up my shiny new uBitx V6 and immediately noticed that the tuning knob randomly jumps frequency that i cannot guess. Its like a race car. It jumps hundredths of KHz or sometimes MHz in just half rotation if I am slightly unmindful. If I want to control the tuning then I have to rotate real dead slow. Then only it tunes by 5 khz steps. ? I don't know if everyone is used to it and I am just new to the tuning method or its a real problem.
Thanks
Ashok VU3KFK
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HI experts,
I am just curious if anyone has tried to make a Raduino from RPI Pico. It is now cheaper than Arduino Nano (at least in India, have not checked other country yet. Pardon me if I am wrong). I think it is now the most viable candidate for the replacement of Arduino nano in Raduino. I have one lying in my table with SI5351 connected to it. I asked one of my coder friend to work on it but he is also busy and could not manage time. If anyone here already tried it.
Ashok-VU3KFK
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Re: Current options for replacing Raduino for v5 ubitx?
Ramon, I would like to buy one shipped to Austin TX USA.? How to proceed?
Lou,?
It works with the V5, although the wiring has to be modified a bit (Keyer an PTT pins). It's simple.
¸é²¹³¾¨®²Ô?
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Re: Current options for replacing Raduino for v5 ubitx?
Lou,?
It works with the V5, although the wiring has to be modified a bit (Keyer an PTT pins). It's simple.
¸é²¹³¾¨®²Ô?
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Re: Current options for replacing Raduino for v5 ubitx?
Mark,?
the board has all the SMD components soldered at the factory. Only the connectors and the 7805 regulator need to be soldered.
¸é²¹³¾¨®²Ô?
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BTW, suffix BPF indicates lead free.?
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Re: ubitxv6 kit - upgrade to 7in screen, need new case
I assume you are aware that the 7in screen draws a LOT of power!? Pay attention to your power supply and make sure it can handle the new screen! -- Rich
On Tue, Jun 28, 2022 at 11:02 AM Michael Golden < pldnmayor@...> wrote: Hello all!
for my birthday last year, I got a 7in nextion display and want to upgrade my ubitx to it.? I'm aware of the firmware and everything else I need to do to make this happen.? My one struggle, however, is finding a 3d printable case, or a case I can buy for the ubitx that will handle the 7inc screen and keep everything nice and safe.
Any thoughts or suggestions would be greatly appreciated!
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Hi Vic,
1400 pF is very high gate cap for the uBITX application.?
Find legit IRF510s from a trusted source.
I didn't research the BPF suffix, but a _quick_ scan of the linked datasheet passes muster.? i.e. nothing flagged.
Please check in more detail.
No info found on the N suffix part. I can only speculate that it's a completely different die.? Higher Cap, lower Vt.
We know that there are parts like this on the world wide market.
Rgds,
Gary
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