You don't need the tuner with a transverter. Keep it bypassed. It is best to not use the tuner. - f
I'm setting up a 2 Meter transverter to my uBITX. My normal setup is:
1) uBITX
2)Nm0S 4-S Tuner
3) Antenna
My question is should the 2 Meter transverter go before or after the tuner??
The transverter has the coax going from radio to transverter then from transverter it has the HF Antenna BNC and VHF BNC.?
I have never used a transverter before and I don't know the proper location for it.?
--
'72
Aaron K5ATG
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It is probable that your power supply voltage is dipping under load. Can you check the voltage as it shuts down?
So here is my conundrum. Got my sBITx, which I love, however I have ran into some problems. My finals blew. I had no issues under 10 watts, however when I increased my power to 10+ watts the sBITx completely shut down. My antenna was tuned to an SWR of 1.3 and below. I replaced my finals with the spare ones that came with the unit, however my power transformer still initiated fault perfection. I ordered new finals and got the unit running, but when I transmitted CW at 1 watt¡ªto be safe¡ªthe rig would shut down the raspberry pi, but the main board would stay on. I plugged the raspberry pi into an external power supply and disconnected the 5v regulator, this prevented the raspberry pi from shutting down, however the main board got a smell and sluggish on transmit¡ªif that is a thing. Something on the main board seems to be shorting out and I am unable to trace the issue down.
Any suggestions would br appreciated.
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So here is my conundrum. Got my sBITx, which I love, however I have ran into some problems. My finals blew. I had no issues under 10 watts, however when I increased my power to 10+ watts the sBITx completely shut down. My antenna was tuned to an SWR of 1.3 and below. I replaced my finals with the spare ones that came with the unit, however my power transformer still initiated fault perfection. I ordered new finals and got the unit running, but when I transmitted CW at 1 watt¡ªto be safe¡ªthe rig would shut down the raspberry pi, but the main board would stay on. I plugged the raspberry pi into an external power supply and disconnected the 5v regulator, this prevented the raspberry pi from shutting down, however the main board got a smell and sluggish on transmit¡ªif that is a thing. Something on the main board seems to be shorting out and I am unable to trace the issue down.
Any suggestions would br appreciated.
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Hello Jim,
We have never had any issue shipping to any address in the US. However DHL does not ship to a PO Box address. So you will have to give a street address and it will be delivered.? However if you want us to enquire with DHL do send us your address in private to sales@... and we will enquire with DHL and get back to you.?
Hope that helps,?
Thanks,? Thomas.?
I'm planning to order a Bitx kit but I'm not sure DHL delivers to my rural address in KY.? Sometimes UPS and FedEx have problems locating me.? USPS does a great job.? Does anyone have experience with DHL and rural deliveries?? UPS hands shipments over to USPS for deliveries to my P.O. Box; does DHL do this?
Thanks for your comments !
Jim WB4ILP?
--
Support@...
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Re: SBITX RFON Transmitted signal
#sBitx
I have a problem that is similar and may be the same. Will be digging into this more later.
Got an audio report that said it sounded distorted. The mic is the one that came in the uBitx v3 kit.
Will try to get an audio recording to compare.?
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I¡¯d call DHL¡¯s customer support line and see if your address is recognized as a valid address.
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Show quoted text
I'm planning to order a Bitx kit but I'm not sure DHL delivers to my rural address in KY.? Sometimes UPS and FedEx have problems locating me.? USPS does a great job.? Does anyone have experience with DHL and rural deliveries?? UPS hands shipments over to USPS for deliveries to my P.O. Box; does DHL do this?
Thanks for your comments !
Jim WB4ILP?
|
I'm planning to order a Bitx kit but I'm not sure DHL delivers to my rural address in KY.? Sometimes UPS and FedEx have problems locating me.? USPS does a great job.? Does anyone have experience with DHL and rural deliveries?? UPS hands shipments over to USPS for deliveries to my P.O. Box; does DHL do this?
Thanks for your comments !
Jim WB4ILP?
|
Re: day light again `inquiry
Ashhar, I was mistaken when I said the spur moves in the same direction as the main signal. It is just the opposite. If I tune up in frequency, the main signal goes up in pitch/tone. The spur will go down in pitch/tone.
this weekend is a RTTY contest and all I hear is RTTY signals in the entire lower portion of the 40-meter band. Annoying.
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Re: #sBitx Idea for sBitx surround sound cw
#sBitx
Brad, The rx audio output from the codec is mono. The other channel is used for transmit circuitry. This rules out stereo output for the rx. The binaureal sound is not possible from the architecture in software alone. - f
A friend of me developed a circuit board for surround sound cw.? It's pretty neat and as you tune past a station the cw goes from one ear to the other.? It gives another dimension to the perception of cw signals like I have not heard before.?
?With that in mind I was thinking that it would be fun if that could be implemented on the Sbitx. Looking at the schematic it looks like one channel of the codec is used for TX and one for RX.. so Mono only for the headphones. So a question for Farhan, if there is a redesign for the board would it be worth adding a switch so both channels can come out to the headphone during rx? Not that I have a clue as to how complicated the software would be to implement the filters necessary..... but just asking.??
73
Brad N8YG
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#ubitx Without Tx and without RX
#ubitx
Good night people.? I have a ubtix V3 and I was using it in cw and I observed it with bad contact, turning on and off and then it turned off, I checked the 7805 regulator and it was very hot, I changed the regulator removing it from the board and put it on the radio plate adding a resistor after that I turned on the radio and without TX and without RX, I immediately thought of the SI 5351, I used my frequency meter and clock 2 is absent, the other clocks ok, people help colleagues to get my ubtix back.? thanks PY1LHL - LEO
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With?  ?in the circuit. Would it be acceptable to apply 12v? to Pin 6 and Ground to Pin 2 to see if i can get the relay to switch...having issues with Pi doing what it needs to do to switch using FT8 to transmit, but No power out.. When Pi releases xmit, the receive is back in business.? just no XMIT..(maybe barking up wrong tree...but first place to start. Vince
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#sBitx Idea for sBitx surround sound cw
#sBitx
A friend of me developed a circuit board for surround sound cw.? It's pretty neat and as you tune past a station the cw goes from one ear to the other.? It gives another dimension to the perception of cw signals like I have not heard before.?
?With that in mind I was thinking that it would be fun if that could be implemented on the Sbitx. Looking at the schematic it looks like one channel of the codec is used for TX and one for RX.. so Mono only for the headphones. So a question for Farhan, if there is a redesign for the board would it be worth adding a switch so both channels can come out to the headphone during rx? Not that I have a clue as to how complicated the software would be to implement the filters necessary..... but just asking.??
73
Brad N8YG
|
One of these plugs into the first (leftward, towards the board edge) micro-HDMI socket and converts to the large HDMI plug. The other has a HDMI socket that mounts to the chassis.  
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I'm setting up a 2 Meter transverter to my uBITX. My normal setup is: 1) uBITX 2)Nm0S 4-S Tuner 3) Antenna My question is should the 2 Meter transverter go before or after the tuner?? The transverter has the coax going from radio to transverter then from transverter it has the HF Antenna BNC and VHF BNC.? I have never used a transverter before and I don't know the proper location for it.? -- '72
Aaron K5ATG
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Re: File /uBITX_6_N8ME_2_VU3GAO_Mods.zip uploaded
#file-notice
Jack
I installed it (V6) using a new Nano and the first time had to choose Uno instead of Nano as the board (using Arduino IDE) and the "new" rather than "old" boot loader. ?When trying to upload as Nano, I got the sketch-too-big message but it was OK with the Uno setting. ?
Also, following Nitin's suggestion, I had to installed Ashar's original firmware first, then the N8ME/VU3GAO firmware, in order to clear the settings memory. Otherwise, when the original N8ME firmware had been on previously, I was getting gibberish over top the settings display. Since I was using a new Nano, while I had Ashar's original firmware on, I calibrated the touch screen because I could access the calibration by pushing the encoder. ?When I tried to install the new firmware without doing that, the display was frozen.
73 Howard K4LXY
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Ubitx V6 - WSJTX - Should my LCD screen on Ubitx be changing when I make changes of frequency and such on WSJT-X?
#cat
Got?n8me_2_vu3gao_mods loaded and green CAT , the Test PTT turns red. But I don't see that as TX on the Ubitx, or anything on the Ubitx change. Any ideas or settings?
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removing self from bitx20 forum
Just wanted to say goodbye to everyone,and enjoy ur sbitxes,and such. Im changing paths in my Amateur radio career. Just going to buy USA made or make it myself. Not to be insulting to others, and none intended, i was shocked when 3 USA kit dealers emailed me back when i asked to purchase some of their boards and kits. :summary of cut and paste of all three mom and pop shops. wont name the shops,dont need to.
""However, given the low cost competition from outside the US, it is difficult for us to justify the expense of a large batch.
?
Here is one example:
?
We simply can not compete with this pricing and with recent supply chain issues and inflation, our costs have only increased.""
Meaning others have faster access to the chinese markets than USA markets.
So in order to be fair and support the small mom and pop shops, i wont be buying any radio kits anymore produced or designed outside the USA. Granted it limits my access to some kits, but I have a deep nawing feeling im doing myself right. Some may flame me but ohh well. to each his own.
Wish everyone good luck on the sbitx and the ubitxs too. I still own 3 ubitxs. but wont be purchasing more in the future. No offense to you Ashhar,you are a brilliant designer and buisness Man. A credit to the hobby.
good luck on all ur builds in the future and may you all keep the smoke in the pcb after building it . HI HI.
73
David
ac9xh
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Hi Rolf,
You can do the \help and \h2 commands to see a list of commands. The commands I have added are on help page 2 (\h2).
I just did a push to git a few minutes ago updating the help screens, so if you did a git pull before, refresh your sbitx-k3ng code with another git pull¡
73
Goody
K3NG
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Show quoted text
On Sep 24, 2022, at 12:12, Rolf Schroeder <rolf@...> wrote:
Hi Goody,
is there a list of commands that are available? I like to update my sBitx version and try the new one.
Thanks a lot for your effort
Vy73 de
Rolf, DL8BAG
Am 24.09.2022 um 16:48 schrieb Anthony Good <anthony.good@...>:
?In my development version I have updated the following:
1) There are now \reboot and \shutdown commands. For those who may be using the software in a multi-user system in the future, there is a #define INCLUDE_REBOOT_AND_SHUTDOWN_COMMANDS that can be commented out to disable these commands from being available to the user. The two commands shutdown the transmitter and recording (if on), and save user settings prior to the shutdown or reboot. I may add some code later to also signal the Fldigi process to shutdown.
2) The \fc frequency calibration command now invokes a DDS retune so you can see the effects of the calibration immediately, without having to do an \f command after an \fc command as before.
I believe there are still issues with the \addcwpitch setting. I hope to look at this more in depth this weekend.
To pull my latest code and try it:
cd /home/pi
git clone
cd sbitx-k3ng
git pull
git checkout 2022.09.15
./build sbitx
./sbitx
This is development code and may or may not work for you. Your mileage may vary. Void where prohibited.
73
Goody
K3NG
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Re: day light again `inquiry
Temperature compensation is only part of the game.
The other was using a coil form with stable temperature characteristics
like ceramic.? Most ferrites and powered iron cores were to be shunned
or temperature stable mixes preferred,
Then the oscillator, many transistor designs were able to maintain 1hz
stability at fixed temperature.. Sieler and Vacker were especially good.
Reason is that the device be it JFET, MosFET, Bipolar all exhibit
parameter shift with temperature The more decoupled from the LC
the active device is the less it can alter the tuned circuit.
So to get a stable VFO you had to start with stable parts like COG or
better polystyrene.? Stable coils (Not toroids -7material is +30PPM)?
where some plastics are all over the maps for stability.? I'd note that
while varicap diodes are popular they are very temperature unstable
as well.
However with all that and good mechanical and thermal design its
possible to build very stable VFOs with modern parts and no
N750 caps.
Allison
------------------
Please use the forum, offline and private will go to bit bucket.
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Hi Goody,
is there a list of commands that are available? I like to update my sBitx version and try the new one.
Thanks a lot for your effort
Vy73 de
Rolf, DL8BAG
toggle quoted message
Show quoted text
Am 24.09.2022 um 16:48 schrieb Anthony Good <anthony.good@...>:
?In my development version I have updated the following:
1) There are now \reboot and \shutdown commands. For those who may be using the software in a multi-user system in the future, there is a #define INCLUDE_REBOOT_AND_SHUTDOWN_COMMANDS that can be commented out to disable these commands from being available to the user. The two commands shutdown the transmitter and recording (if on), and save user settings prior to the shutdown or reboot. I may add some code later to also signal the Fldigi process to shutdown.
2) The \fc frequency calibration command now invokes a DDS retune so you can see the effects of the calibration immediately, without having to do an \f command after an \fc command as before.
I believe there are still issues with the \addcwpitch setting. I hope to look at this more in depth this weekend.
To pull my latest code and try it:
cd /home/pi
git clone
cd sbitx-k3ng
git pull
git checkout 2022.09.15
./build sbitx
./sbitx
This is development code and may or may not work for you. Your mileage may vary. Void where prohibited.
73
Goody
K3NG
|
PY1LHL - L?O
Vince N2AIE
John Terrell, N6LN
Aaron K5ATG
Rolf Schroeder