station heard at 4 different frequencies
#bitx20
This morning I started the sBitx v2 (latest firmware) I did hear RC9O on 14240, 14243,5, 14247.5 and 14232.5. The strongest signal was showing at 14243.5 but when tuning on 14243.5 now 14247.5 showed stronger on the waterfall.
going back to 247.5 showed 243.5 looked stronger. I checked with my FT-710 and it was on 14232.5.
After closing sBitx and restarting the app it was now showing on 14232.5 as it should.
To notice is that before restarting sbitx the waterfall was showing wave of density variation across the screen.
I have no idea why this did happen. Anyone else has seen this?
73, Yvon
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Hello
Made a contact today via FT8. The info fields are filled in however when I select log the message on screen says "Fill the logger callsign, RST sent, received to save. Cant seem to get anything into the log
Advise
73
Art N2AJO
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Re: Sbitx Advisory: Do not transmit !
Farhan,
Could you or someone at HF Signals answer the following questions for me?
1. Does this advisory apply to the Developer's Edition or v2 units or all sBITX units?
2. When the update is pushed out, will it work with the Developer's Edition?
3. If the update will work with the Developer's Edition, what modifications must have been completed in order for it to run on the Developer's Edition without causing damage to the unit?
Thank you in advance for your patience with my lack of understanding.
--
Stephen, KO4CVU
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Re: uBitx 6.1 freezes, tuning encoder does nothing
One step forward, two steps back.
I found, from watching a mod video on YouTube, that I had plugged the multi-function knob into the wrong place: the main board, instead of the Raduino.? I carefully opened up the box, made the change, and plugged in my battery.? Now the unit won't turn on at all.? Have I just fried the whole thing>
?-Don Levey ? KC1HBG
I have recently received and assembled my uBitx kit; powerup tells me that it is version?6.1.? I can use the touchscreen to do most things, but the multi-function knob does not appear to do anything.? Also, there are certain times when the rig simply freezes, at which point I can't do anything with the touch screen either.? For example, I can enter fast tune mode, but turning the knob has no effect and pushing it does not end fast tune mode.? At this point the rig is frozen.
I assume that I;ve been doing something wrong; what am I missing?
?-Don Levey ? KC1HBG
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Re: Everyone install your clock battery SbitxV2
Notice the second 4 slot header?
Pete WK8S?
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Re: I need a proper sBitx V2 image!
Finals replaced, a new SD card fashioned and sBitx V2 is running beautifully!  
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Re: Check for loose screws and nuts
#sBitx
WOW Got my #47 yesterday.? I shook it this morning and a tiny silver flat head screw fell out the hole where the PI would be.
Ron
On Friday, April 28, 2023 at 12:15:34 AM EDT, Zach Davis - AB0E <mrzrd83@...> wrote:
As I've seen a few people post about magic smoke and RX issues I would point out that when I received my sBitx (the version with everything except the pi4) on Tuesday there were several extra loose nuts under the main board and one that had lodged up pretty tight.
On a side note last night on FT8 20m I transmitted a quick CQ and PSKReporter showed reception from Southern California clear up to British Columbia Canada. My QTH is about 20 minutes west of Kansas City. My antenna is a homebrew LMR400 magloop.
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More info:
I am using the hand mic from my Elecraft KX3. It has a 4 conductor TRRS plug with connections S shield, R2 logic ground, R1 PTT, T audio. ?Could that be the source of the noise?
--
73,
Mark, N8ME
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Here is oscilloscope troubleshooting on the SSB distortion. We looked at the signal going into the WM8731 RLINEIN (at the cathode of D2). The signal was fairly noisy without even pushing the PTT. With the PTT active and the radio generating RF, the noise on the signal increased dramatically. ?One hypothesis is that the trace from the mic jack to the MIC pin on J1 (on the main board) goes right past the RF section of the radio. Could that be inducing RF into the signal?
Another note, when we touched (I swear we didn't push hard) the probe to D2, D2 fell off. As near as we could tell, it looks like one side may not have been soldered at all. It's a very small part, I will attempt to re-solder it, unless do you have a spare DE digital board?
What's the purpose of D2 and would D2 being missing allow for RF to get into the signal?
--
73,
Mark, N8ME
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Re: Clock battery pics and mod
I ordered this one. We will see if there is enough room between the boards.
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Re: Clock battery pics and mod
I'm reusing an old Pi 4 that has seen many uses. It has what I think are the standard chip size stick on heat sinks and they seems to fit fine.?
If you are concerned there are many handy apps for monitoring CPU temperature, both displaying on the Pi and some that use your smart phone as a remote display..
--
73
??? Bob? KD8CGH
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Re: Clock battery pics and mod
Me too Gyula :) I haven't opened unit yet, no RTC battery installed, no check for residual screws or so, no SD card image backup... yet.
Just enjoying the RX and worked 30QSOs over continents.?
Now QRX so maybe time to do those things. hi
-P #5
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Re: Clock battery pics and mod
We went to great lengths to avoid fans or relays to keep the entire radio silent. They are thriving in Hyderabad where the temperatures routinely cross 100F. If anything, we need better circulation inside the box.
On Fri, Apr 28, 2023, 4:27 PM HA3HZ < gyula@...> wrote: Yes, Joel just wrote that the small glued heatsink relies on the quartz. I certainly wouldn't use it that way.
I haven't opened mine yet :-P but I'm still thinking about some kind of air circulation. e.g. 12V fan operated from 5V, with a separate regulator.
--
Gyula HA3HZ
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Re: Clock battery pics and mod
Yes, Joel just wrote that the small glued heatsink relies on the quartz. I certainly wouldn't use it that way.
I haven't opened mine yet :-P but I'm still thinking about some kind of air circulation. e.g. 12V fan operated from 5V, with a separate regulator.
--
Gyula HA3HZ
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Re: Clock battery pics and mod
Gyula,
I am exactly at the same point.
In my opinion it will not fits and even if yes then it will be too tight with no air ventilation so maybe the conditions will
be even worse. (of course, heatsink without small additional fan)
So, I'm thinking about some solution. I know that Farhan said it's not necessary, but I am thinking about some upgrade for
better cooling.
-P #5
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Re: Clock battery pics and mod
Petr,
have you seen how it fits? I've seen a similar size one without a fan, but I'm not sure if it's worth putting it between the two PCBs.
I'm thinking more of a side fan that sucks the air out. I'm just planning what would be a better solution.
--
Gyula HA3HZ
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Re: Why do I2C bit-banging instead of using the Pi4 I2C controller?
Rafael, We couldnt get the wm8731 and the si5351 to share the I2C bus, hence.
On Fri, Apr 28, 2023, 3:48 PM Rafael Diniz < rafael@...> wrote: Some reference on how to setup the I2C busses here:
The main reference:
Rafael
On 4/28/23 13:13, Rafael Diniz wrote:
> Hi all,
>
> I wonder why we are not using units of the 6 I2C controllers of the
> Pi4, instead of big-banging. Ashhar, do we have any reason for this?
>
> Cheers,
> Rafael
>
>
>
>
>
>
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Re: Why do I2C bit-banging instead of using the Pi4 I2C controller?
Some reference on how to setup the I2C busses here:
The main reference:
Rafael
toggle quoted message
Show quoted text
On 4/28/23 13:13, Rafael Diniz wrote: Hi all,
I wonder why we are not using units of the 6 I2C controllers of the Pi4, instead of big-banging. Ashhar, do we have any reason for this?
Cheers,
Rafael
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Why do I2C bit-banging instead of using the Pi4 I2C controller?
Hi all,
I wonder why we are not using units of the 6 I2C controllers of the Pi4, instead of big-banging. Ashhar, do we have any reason for this?
Cheers,
Rafael
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Re: Sbitx Advisory: Do not transmit !
Oops,
I made about 30 QSOs on CW with full power (40W out measured on 20m with drive set to 100).
It looks like it survived luckily.
OK, QRX for next commands from mothership.
?
Many thanks Farhan,
-P #5
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John Terrell, N6LN
Mark Erbaugh
Mike (KV4TT)
Bob Benedict, KD8CGH
HA3HZ