Date   
Re: UBITX v6.1: Function of USB/LSB Side Band Selection

W2CTX
 

The point is that after you select USB or LSB you have to use the encoder to change the frequency
before your change will take effect.  Just toggling the USB/LSB does nothing except change
the display.



On Tuesday, May 5, 2020, 7:13:11 PM EDT, Stephen KO4CVU <goinfishin1952@...> wrote:


Barry,
I have tried a single press of the tuning knob and then moving the highlighting block from LSB to USB and it makes no difference. In fact, the radio gets stuck so that neither the tuning knob or the touch screen will change any property of the radio (frequency, mode, band, etc.)
Thanks,
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Stephen KO4CVU
 

Dale,
I agree with you after looking at the block diagram underneath the heading “Circuit Description” on the page www.hfsignals.com/index.php/ubitx-v6/. Underneath the heading “Transmitting,” I found the sentence “The transmission is really the same signal flow in the reverse direction.” This leads me to believe that the SSB filters should apply to both the receive and the transmit operations.
That being said, how can I determine why the USB/LSB mode change makes no difference on known SSB voice transmissions on the LSB in the 40 MHz band?
Thanks,
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Arv Evans
 

That is an interesting comment, because the schematic clearly shows both receive and transmit signals going through the crysytal filter.  

Am I missing something?

_-_


On Tue, May 5, 2020, 4:39 PM James George <ki0ad2@...> wrote:
I don't believe that the radio has receive filters only transmit.

On Tue, 5 May 2020, 4:21 p.m. barry halterman, <kthreebo@...> wrote:
I remember someone posting that you need to turn the main tuning knob to get the ubitx to switch between sidebands. Sounds to me you are on one or the other side but not actually changing between the two. Try moving the encoder and see if it changes when you select each sidebands.
K3BO

On Tue, May 5, 2020, 5:38 PM Stephen KO4CVU <goinfishin1952@...> wrote:
WBOWQS,
I have my own SDR receiver dongle. Maybe I can use it to duplicate your procedure.
Did you perform the coarse BFO alignment using the Ashur’s BFO alignment webpage? If not, how did you perform it?
Did you perform your frequency alignment with a CW transmission or a voice transmission?
If you used a voice transmission, what frequency were you tuning to? Did you use USB or LSB?
How did you perform your fine BFO alignment?
Thanks for your patience with my ignorance.
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Stephen KO4CVU
 

Barry,
I have tried a single press of the tuning knob and then moving the highlighting block from LSB to USB and it makes no difference. In fact, the radio gets stuck so that neither the tuning knob or the touch screen will change any property of the radio (frequency, mode, band, etc.)
Thanks,
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Dale Parfitt
 

Look at the schematic- same filter on RX and TX. If it  did not have a RX filter then it would be incapable of receiving just one sideband.

 

Dale W4OP

 

I don't believe that the radio has receive filters only transmit.

 

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

James George <ki0ad2@...>
 

I don't believe that the radio has receive filters only transmit.


On Tue, 5 May 2020, 4:21 p.m. barry halterman, <kthreebo@...> wrote:
I remember someone posting that you need to turn the main tuning knob to get the ubitx to switch between sidebands. Sounds to me you are on one or the other side but not actually changing between the two. Try moving the encoder and see if it changes when you select each sidebands.
K3BO

On Tue, May 5, 2020, 5:38 PM Stephen KO4CVU <goinfishin1952@...> wrote:
WBOWQS,
I have my own SDR receiver dongle. Maybe I can use it to duplicate your procedure.
Did you perform the coarse BFO alignment using the Ashur’s BFO alignment webpage? If not, how did you perform it?
Did you perform your frequency alignment with a CW transmission or a voice transmission?
If you used a voice transmission, what frequency were you tuning to? Did you use USB or LSB?
How did you perform your fine BFO alignment?
Thanks for your patience with my ignorance.
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

barry halterman
 

I remember someone posting that you need to turn the main tuning knob to get the ubitx to switch between sidebands. Sounds to me you are on one or the other side but not actually changing between the two. Try moving the encoder and see if it changes when you select each sidebands.
K3BO

On Tue, May 5, 2020, 5:38 PM Stephen KO4CVU <goinfishin1952@...> wrote:
WBOWQS,
I have my own SDR receiver dongle. Maybe I can use it to duplicate your procedure.
Did you perform the coarse BFO alignment using the Ashur’s BFO alignment webpage? If not, how did you perform it?
Did you perform your frequency alignment with a CW transmission or a voice transmission?
If you used a voice transmission, what frequency were you tuning to? Did you use USB or LSB?
How did you perform your fine BFO alignment?
Thanks for your patience with my ignorance.
Stephen

Re: A survey - which bands do you operate your ubitx on?

F5NPV
 

Since  the propagation is not the best nowadays  , using mostly

40/30/20/17 all modes
73s Didier

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Stephen KO4CVU
 

WBOWQS,
I have my own SDR receiver dongle. Maybe I can use it to duplicate your procedure.
Did you perform the coarse BFO alignment using the Ashur’s BFO alignment webpage? If not, how did you perform it?
Did you perform your frequency alignment with a CW transmission or a voice transmission?
If you used a voice transmission, what frequency were you tuning to? Did you use USB or LSB?
How did you perform your fine BFO alignment?
Thanks for your patience with my ignorance.
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Stephen KO4CVU
 

Reed,
I am listing to a SSB transmission after I have gone through the BFO adjustment procedure video. Have the selection in either the USB or LSB mode does not make a difference in what I hear.
Thanks,
Stephen

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Gordon Gibby
 

These are exactly the kinds of little exercises that develop a strong understanding of radio among amateur radio operators who venture out of their comfort zone.  


On May 5, 2020, at 16:54, WB0WQS <WB0WQS@...> wrote:


I tried the method in  Ashur’s video without success. Then I remembered somebody mentioned using a WebSDR signal. So I found a strong Station on a Web receiver that I could also hear, and 
used the BFO alignment to line up my transmitter and receive signal.   I aligned my transmit signal with a strong CQing station so I could hear both my signal and there signal on the WebSDR. 
Your mileage my very. Hope this helps. - WB0WQS

On Tue, May 5, 2020 at 3:09 PM Reed N <greenkid336600+groupsio@...> wrote:
Sanity question: are you tuning into an AM transmission, or a SSB transmission? AM transmissions have both side bands, so I'd expect them to be "the same". However if you're tuning into an SSB transmission and it sounds the same in both modes, then that's definitely odd.


Reed

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Gordon Gibby
 

Very smart move, congratulations!


On May 5, 2020, at 16:54, WB0WQS <WB0WQS@...> wrote:


I tried the method in  Ashur’s video without success. Then I remembered somebody mentioned using a WebSDR signal. So I found a strong Station on a Web receiver that I could also hear, and 
used the BFO alignment to line up my transmitter and receive signal.   I aligned my transmit signal with a strong CQing station so I could hear both my signal and there signal on the WebSDR. 
Your mileage my very. Hope this helps. - WB0WQS

On Tue, May 5, 2020 at 3:09 PM Reed N <greenkid336600+groupsio@...> wrote:
Sanity question: are you tuning into an AM transmission, or a SSB transmission? AM transmissions have both side bands, so I'd expect them to be "the same". However if you're tuning into an SSB transmission and it sounds the same in both modes, then that's definitely odd.


Reed

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

WB0WQS
 

I tried the method in  Ashur’s video without success. Then I remembered somebody mentioned using a WebSDR signal. So I found a strong Station on a Web receiver that I could also hear, and 
used the BFO alignment to line up my transmitter and receive signal.   I aligned my transmit signal with a strong CQing station so I could hear both my signal and there signal on the WebSDR. 
Your mileage my very. Hope this helps. - WB0WQS

On Tue, May 5, 2020 at 3:09 PM Reed N <greenkid336600+groupsio@...> wrote:
Sanity question: are you tuning into an AM transmission, or a SSB transmission? AM transmissions have both side bands, so I'd expect them to be "the same". However if you're tuning into an SSB transmission and it sounds the same in both modes, then that's definitely odd.


Reed

Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6

Christopher Miller
 

I will wait as well. I’m sorry for being a pain in the ass. My wife is keeping me in check. 

On Tue, May 5, 2020 at 1:26 PM Joel Caulkins/N6ALT <caulktel@...> wrote:
Thanks Reed,

 Please don't take my complaint as being unappreciative, I as many others appreciate everything you do to make our uBitx's more usable. I will patiently wait.

Joel
N6ALT

Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6

 

Thanks Reed,

 Please don't take my complaint as being unappreciative, I as many others appreciate everything you do to make our uBitx's more usable. I will patiently wait.

Joel
N6ALT

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Reed N
 

Sanity question: are you tuning into an AM transmission, or a SSB transmission? AM transmissions have both side bands, so I'd expect them to be "the same". However if you're tuning into an SSB transmission and it sounds the same in both modes, then that's definitely odd.


Reed

Re: UBITX v6.1: Function of USB/LSB Side Band Selection

Stephen KO4CVU
 

In case there are other v6.1 units with the same symptom, I submit the following batch identification information for comparison:
Distributor: Gigaparts
Date of order: 4/16/2020
Date on “Contents List” enclosed with kit: 14/2/2020 (February 14th)
Signature on “Contents List” enclosed with kit: “SL”

Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6

Reed N
 

Hi Joel,

Not sure what would cause the white screen - I haven't run into that issue in quite some time.

As for getting back to the calibration, you can navigate the entire menu structure using the tuner knob. After you power on, briefly press in the knob, then rotate until the gear is selected, then press the knob again. Press the knob again to select the calibration submenu. Finally, turn the knob to select touch screen, and press the knob button to re-enter calibration.

Side note: I didn't intentionally change the calibration storage location, so I'm a bit surprised it would need recalibration after updating.

HOWEVER, I just tried walking through the touch calibration procedure, and it appears that I've accidentally broken it somehow, so I'll try and fix that tonight, since it is a pretty important function.


Reed

Re: A survey - which bands do you operate your ubitx on?

Tom VE3THR
 

40M and 80M portable

Re: R1.4.0 Software Release #ubitx #nano #v6 #ubitxv6

Lennart - LA4KFA
 

I have also tried this version, and the calibration is gone crazy.

It looks like it calibrates itself, the crosses disappear before I can click on them.
If I use the initial calibration metod (holds the tuning button in when turning on), then it runs trough the hole calibration process

Lennart
LA4KFA