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Hi,

I was wondering if anyone (Rene?) has double-checked the wiring on these Baofeng microphones.? I think these are speaker/mics and the plugs are changed at the factory.? So I was wondering if perhaps some were wired incorrectly and the electret element is not connected correctly.? It is possible that the speaker is being hooked up instead of the microphone?? A check would be just to trace the wiring and make sure goes only to the electret element and PTT switch, and the speaker is fully disconnected.

73,


Mark

Thanks Jim for answer??

I tried everything? ?usb/lsb shift is too large . BFO doesnt impacts.
RIT or split mode is solution for CQ .
on the other side transcerver is very good on SSB .?

Ivica 9a6cw

Thanks.? Now this one worked.
--
"To invent, you need a good imagination and a pile of junk"? -- Thomas Alva Edison (1847-1931)

Link isn't good.
--
"To invent, you need a good imagination and a pile of junk"? -- Thomas Alva Edison (1847-1931)

Huh?
--
"To invent, you need a good imagination and a pile of junk"? -- Thomas Alva Edison (1847-1931)

Thanks Guru. I loaded your work on my? uBitx V6 and everything works cool. Added features are helpful and interface is smooth with better color combo.

Russ,

All true until you get high enough and it starts going down.

I'd describe it as higher the closer to 70 ohms (natural impedance for dipole).
Also at less than .25 lambda the impedance is lower than 50 ohms and the length
will be shorter due to ground reflection and loading.


Allison
---------------------------------
No direct email, it goes to bit bucket due address harvesting in groups.IO

How cheap was the 5A 14V smps supply used??
As many cheap units lack some or all filtering to save a penny.
You could also have strong local qrm, have you tried any other receiver with the same antenna?

As the antenna raised (or lowered) from ground . . . the impedance changes.
The closer to the ground . . .the lower the impedance. Higher from the ground . . . the greater impedance.
You need to adjust the antenna at the point you will be using it from.
Surroundings in the vicinity of the antenna will also produce various VSWR.
Russ? KG0BK

Okay nice John, i orderd 1??

look at files/digital for upload files

While at home in lock_down i saw this Web site (Forum.arduino.cc/index?topic=403234.0)
about a adding a digital S-meter/power meter using a arduino board, it looked good project for my
cubit ver 5 radio so, I started to look to see what i needed to use this software.
My ubitx radio has the CEC firmware Ver 1.2 with a 5" Next ion display, also i installed
the Standalone Signal Analyzer(ic2 signal-meter).I uploaded pictures of the insulation
and drawings of the circuits. The vu meter is connected? to the microphone input on the
the ubitx board you'll need CEC firmware ver 1.2 to use it. Just press the TX STOP
Button then press the mic PTT Button then set Smeter/vu meter switch to vu, the oled
display will display microphone output level (there ubitx will not xmit).
The power meter scale needs to be changed the scale goes up to 100w, I need to change
it to read 30w scale.I use a arduino mini pro just becouse i had one!

73' PD0LEW, J.G. Holstein

As promised in my prior replay, here is the link to the oscilloscope screen pictures that I took:
/g/BITX20/message/72786

Note that these are for test point 3 to 7 (in reverse order on the email).

Hope this helps.
73
Evan
AC9TU

73 to all
Have the same problem with new ubix V6,1 rx/tx shift is 1kHz .. Calibration metod?described in the youtube video make freq. exact and ssb audio is clear !! but cw is?unusable...
Where can I find firmware or how to solve this?FUNDAMENTAL problem.
thanks in advance

Ivica 9a6cw