Re: uBitX V6 only transmits double sideband

Jack, W8TEE

Hmmm...let's see...$1,271.60 versus $200, yet you expect them to be the same?

Jack, W8TEE

On Wednesday, May 27, 2020, 9:19:18 PM EDT, Jeff Debes <jeff.debes@...> wrote:

Thanks everyone for the suggestions: 

So I followed the Ashar Farhan  alignment video as best I could and I can tune in WWV at 10 mhz precisely zero beating the signal.
I’m not at a place where I have access to a PC.
On sideband, in  tuning an upper or lower SSB signal, the receive switching either USB or LSB makes no difference, both tune the same I can copy well on either. That does not  seem  right.
Any thoughts or suggestions? 

I read all remarks and I do realize this is a very low cost radio, yet I am disappointed that documentation is not better. If it were, this forum would have fewer questions to answer.

I own a KX3 Elecraft and enjoy that , but  this rig is a far cry from the quality or ease of use of that much more complex radio, yet the KX3 kit assembly was precise, clear, and worked first time.  Likewise every Small Wonder Labs kit I‘ve  built has been fine even with much more complex assembly or tuning  involved. 


On May 27, 2020, at 4:33 PM, Jeff Debes via <jeff.debes@...> wrote:

 Thank you Evan!
Will read and try!


On May 27, 2020, at 3:43 PM, Arv Evans <arvid.evans@...> wrote:


There is quite a bit of documentation available.  If you have trouble 
understanding some of the more technical parts, just ask specifically 
about it here on this discussion group.  Many persons are available 
and willing to provide explanations, comments, bad info, and so on.  
8-)  This and below may not be about version-6, but still
an interesting read.

This series just goes on, and on, and on...........
Keep incrementing the page number in the URL.


On Wed, May 27, 2020 at 11:57 AM Jeff Debes <jeff.debes@...> wrote:
Thanks for the reply Arv!

Just got it assembled yesterday.
I made an ECARS  contact this morning
and the operator said that I was transmitting a double sideband signal.
I’m confused about how/where to find specific uBitX  V6  setup instructions.

Jeeze, I could write up more accurate assemble directions myself. I know that the uBitX kits are low cost but clear directions would save a whole lot of  frustration and repeat questions and improve the view of these kits. Its documentation QC is lacking.

Most likely I have at least one thing setup
the wrong way.

On hardware or software installed:
No other hardware installed, no software. Its just as it came in the mail.
It always ( for the 15 hours i've had it operating) has receive tuned both sidebands one  unintelligible but as audible in sound as the other,   and  I assume has been transmitting on both sidebands. 
Thanks again for responding.
I’ve written HF Sigs to ask questions, give feedback....... they should hear it also.


On May 27, 2020, at 1:25 PM, Arv Evans <arvid.evans@...> wrote:

Jeff  AC2JB

Carrier imbalance and/or unbalanced mixer/modulator could be problems.
Improper BFO versus carrier settings can cause this problem.  Try redoing 
the frequency alignment steps.  

How are you determining that it is DSB and not SSB?  When you tune your 
uBITX V6 across a weak carrier, can you hear carrier on both sides of 
zero-beat, or just on one side?

What hardware mods have you installed?
What software mods have you installed?
Did it ever work properly?
When did the problem occur?


On Wed, May 27, 2020 at 11:09 AM Jeff Debes <jeff.debes@...> wrote:
Anyone have insight as to why my uBitX V6 only transmits double sideband ?
Also only receiving both sidebands I beleive.
It seems to work ok otherwise.
If It defective I want to send it back.
Jeff  AC2 JB

from my iPhone





Jack, W8TEE

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