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Re: no audio beyond very quiet static
#ubitxv6
#ubitxv6-help
#v6
John measure Q90 base to emitter junction, if close to zero it has shorted. I measured about 500ohms. This will cause no output and loss of receive and it is still in circuit during receive.
Skip
John measure Q90 base to emitter junction, if close to zero it has shorted. I measured about 500ohms. This will cause no output and loss of receive and it is still in circuit during receive.
Skip
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By
Skip Davis
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#85562
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Re: TUNE signal for tuning tuners
CW-KEY is doing exactly the same thing.
When transmitting CW, CLK2 is programmed to be at the transmit frequency, CLK0 and CLK1 are shut down,
and a Nano IO pin drives 5v on CW-KEY to unbalance the
CW-KEY is doing exactly the same thing.
When transmitting CW, CLK2 is programmed to be at the transmit frequency, CLK0 and CLK1 are shut down,
and a Nano IO pin drives 5v on CW-KEY to unbalance the
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By
Jerry Gaffke
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#85561
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New Rig? - Re: QUESTION for All - EASY BITX - HP 2800 series Schottky Diodes for Mixer
When do we get to learn more?
Tom, wb6b
When do we get to learn more?
Tom, wb6b
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By
Tom, wb6b
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#85560
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Re: TUNE signal for tuning tuners
To get less than full power out, you can vary the voltage from 0-5v. TP13 (it looks like TP13 anyway) would be a good place to inject that variable voltage, you'd probably want to use a diode and
To get less than full power out, you can vary the voltage from 0-5v. TP13 (it looks like TP13 anyway) would be a good place to inject that variable voltage, you'd probably want to use a diode and
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By
Vince Vielhaber
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#85559
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Re: FT8 and power levels
What is the emission type / signal characteristics of this "FT8"?
Thanks,
Rafael
What is the emission type / signal characteristics of this "FT8"?
Thanks,
Rafael
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By
Rafael Diniz
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#85558
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Re: TUNE signal for tuning tuners
Just set CW keyer to hand-key and key the radio, you'll get a continuous
CW for tuner adjustment. I'm adding a "TUNE" button in my ubitx v6
interface code for this.
Rafael
Just set CW keyer to hand-key and key the radio, you'll get a continuous
CW for tuner adjustment. I'm adding a "TUNE" button in my ubitx v6
interface code for this.
Rafael
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By
Rafael Diniz
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#85557
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Re: TUNE signal for tuning tuners
Frank,
It is not clear to me what you are asking. If you have a uBITX then the method that Bob describes is the easiest. If your question is how to do that, then here is the way that it is done in
Frank,
It is not clear to me what you are asking. If you have a uBITX then the method that Bob describes is the easiest. If your question is how to do that, then here is the way that it is done in
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By
Evan Hand
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#85556
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FT8 and power levels
A question of curiosity about FT8 and the level of power being used, I have a uBITX v6.2 with a usb dongle running approx.5-7 watts into either a cobweb, 20m hexbeam, or a 20m delta loop, all
A question of curiosity about FT8 and the level of power being used, I have a uBITX v6.2 with a usb dongle running approx.5-7 watts into either a cobweb, 20m hexbeam, or a 20m delta loop, all
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By
Mitchel Rought
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#85555
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Re: FOR SALE Ubitx ver 3 in nice metal case
Is it still available? I am looking for a uBitz.
--
Frank, KG9H
Is it still available? I am looking for a uBitz.
--
Frank, KG9H
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By
kg9hfrank@gmail.com
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#85554
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Re: TUNE signal for tuning tuners
Simple way is to use the Manual Key option and CW mode to use the PTT for a +/-10W CW signal that will tell the tuner what frequency to center on for tuning. Maybe someone else can suggest a hard-wire
Simple way is to use the Manual Key option and CW mode to use the PTT for a +/-10W CW signal that will tell the tuner what frequency to center on for tuning. Maybe someone else can suggest a hard-wire
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By
Bob Lunsford
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#85553
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TUNE signal for tuning tuners
This past weekend, I went back in time and reviewd posts back to 2018.
About half way through I started taking notes but... I did not take any notes on how to unbalance the balanced modular to get a
This past weekend, I went back in time and reviewd posts back to 2018.
About half way through I started taking notes but... I did not take any notes on how to unbalance the balanced modular to get a
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By
kg9hfrank@gmail.com
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#85552
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Re: no audio beyond very quiet static
#ubitxv6
#ubitxv6-help
#v6
The wires for volume control must be ok as the volume does adjust and all the wiring connectors match the photographs I had previously taken.
That being said it does seem likely that something must
The wires for volume control must be ok as the volume does adjust and all the wiring connectors match the photographs I had previously taken.
That being said it does seem likely that something must
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By
John Scarlett <John329@...>
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#85551
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Re: no audio beyond very quiet static
#ubitxv6
#ubitxv6-help
#v6
Yes, get the receiver working first.
Here's an old video Farhan created to show how to take a meter of wire as an antenna to
pick up local QRN around the house, and strobe that wire to each stage of
Yes, get the receiver working first.
Here's an old video Farhan created to show how to take a meter of wire as an antenna to
pick up local QRN around the house, and strobe that wire to each stage of
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By
Jerry Gaffke
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#85550
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Re: I think I damaged my display.uBitx V3
For a clone Nano, do a web search for "nano ch340"
You don't want the headers soldered in place because they would be soldered on the wrong side for plugging into a Raduino.
Examples:
For a clone Nano, do a web search for "nano ch340"
You don't want the headers soldered in place because they would be soldered on the wrong side for plugging into a Raduino.
Examples:
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By
Jerry Gaffke
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#85549
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no audio beyond very quiet static
#ubitxv6
#ubitxv6-help
#v6
Total loss of power output occurred 1st that Is why I replaced the PA transistors.
As it seemed likely that I'd blown my finals I replaced both with genuine RD16HHF1's.
After doing this I had no audio
Total loss of power output occurred 1st that Is why I replaced the PA transistors.
As it seemed likely that I'd blown my finals I replaced both with genuine RD16HHF1's.
After doing this I had no audio
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By
John Scarlett <John329@...>
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#85548
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Re: I think I damaged my display.uBitx V3
Thanks, do you know where I could buy a display or arduino? I've looked but I can't see a source.
Thanks, do you know where I could buy a display or arduino? I've looked but I can't see a source.
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By
bradkirk@...
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#85547
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Re: uBitx v6 board failure--suggestions?
#ubitxv6
#v6
Thanks—I will look into all of that. I tested the 510s with a method found on the web alternating connections with a digital ohmmeter. I also tested the new ones before installing them. I also have
Thanks—I will look into all of that. I tested the 510s with a method found on the web alternating connections with a digital ohmmeter. I also tested the new ones before installing them. I also have
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By
John Terrell
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#85546
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Re: uBitx v6 board failure--suggestions?
#ubitxv6
#v6
Did you figure out where the smoke was coming from?
The IRF510's are a good first guess, but could also have been a board trace, or L8,L9.
I find that going out of the room can bring my nose back to
Did you figure out where the smoke was coming from?
The IRF510's are a good first guess, but could also have been a board trace, or L8,L9.
I find that going out of the room can bring my nose back to
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By
Jerry Gaffke
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#85545
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Re: uBitx v6 board failure--suggestions?
#ubitxv6
#v6
It is possible that those IRF510's are now drawing too much current for your power supply,
and this is causing the "cycling white-out of the screen".
Did you figure out for sure that the old IRF510's
It is possible that those IRF510's are now drawing too much current for your power supply,
and this is causing the "cycling white-out of the screen".
Did you figure out for sure that the old IRF510's
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By
Jerry Gaffke
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#85544
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Re: Easy bitx20 by Inkits.
Skip
I thank you for that
Skip
I thank you for that
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By
Jon
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#85543
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