Re: the new site
This is what your link resolves to: https://www.phonestack.com/laptop-cho-dan-van-phong/
By
Jim Myers
·
#105660
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Evan -- so in this case, I am *using* the 10meter filter.? ? ?Its knee is at 32-ish MHz and appears to be used for 15 meters as well.? ? At least I hope I am!
These data seem to prove that we
By
Gordon Gibby KX4Z
·
#105659
·
|
Re: An alternative for sBitx software development
I have trained myself to love vi. It is a single lightweight editor that is
available on every platform from linux to android.
It is has a little bit of learning curve of an hour, but you get used to
By
Ashhar Farhan
·
#105658
·
|
Re: uBitX v4.3 calibration
Not wrong at all. I used 10Mhz, per the instructions, but using the freq counter got me quite close. Thank you.
By
Labrador
·
#105657
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Again, this unit was purchased from another person. I don’t think that person made any alterations, I can’t see any alterations and nothing looks burnt
I made up a small clip lead to try to short
By
Gordon Gibby KX4Z
·
#105656
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Gordon,
The voltage doubler is applied to both input and output diodes.? Maybe the 10-meter filter is turning on enough to allow the harmonics through?? Just a guess.
All,
Has anyone else seen the
By
Evan Hand
·
#105655
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Yes, thanks, Bill and Evan.
The 1N4007 is certainly not specified or intended for PIN service ; it just happens to have an intrinsic layer. Not sure how thick, and it’s one very big reason I’m
By
Gordon Gibby KX4Z
·
#105654
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Gordon,
The diode you listed in your post has a max reverse voltage of 50 volts.? That is 13 volts short of the 63 volts I calculate for 40 watts in a pure resistive 50-ohm load.? I have found that
By
Evan Hand
·
#105653
·
|
Re: sBitx Raspios Bookworm
Alsa is always there (it is the driver + userland support). Bookworm uses by default pipewire (on top of alsa), but you can just remove it if it causes trouble.
- Rafael
By
Rafael Diniz
·
#105652
·
|
Re: sBitx Raspios Bookworm
Didn't Bookworm change the sound system?
Is alsa supported anymore?
73,
-- Dave, N8SBE
By
Dave New, N8SBE
·
#105651
·
|
Re: sBitx Raspios Bookworm
You can just install it. I maintain a fork and packages of it for bullseye 64 bit.
https://github.com/Rhizomatica/WiringPi
Packages here:
http://packages.hermes.radio/
But it compiles without
By
Rafael Diniz
·
#105650
·
|
Re: sBitx Raspios Bookworm
That's good information. Somehow, I got the impression that sBitx required Buster. It may have been something to do with the fact that WiringPi has been removed from the Bullseye
By
Mark Erbaugh
·
#105649
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
Gordon,
Did you try increasing the forward bias, as Ashhar Farhan has suggested?
73
Evan
AC9TU
By
Evan Hand
·
#105648
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
I think you know this, but 1N4007’s are not PIN diodes… but we force them into that service and sometimes they work (just like forcing IRF510’s into RF service… something they were not
By
K9HZ
·
#105647
·
|
Re: sBitx Raspios Bookworm
Hi Mark,
I never run RaspiOS Buster in the sBitx. I have being always with Bullseye 64 bit - all good. Should be the same with bookworm... there is nothing "special" in the sBitx software which makes
By
Rafael Diniz
·
#105646
·
|
Re: An alternative for sBitx software development
I found another advantage to running VS Code on my PC with a large monitor. I was working on my modified version of the sBitx code which wasn't working as well as the stock version. I opened file from
By
Mark Erbaugh
·
#105645
·
|
Re: An alternative for sBitx software development
What editor do you use? I assume it is running on the RPi.
--
73,
Mark, N8ME
By
Mark Erbaugh
·
#105644
·
|
Re: sBitx V2 SN #141 Spurious/Harmonic Measurements
After pondering this over night, I'm starting to more and more suspect that it has to be some diode that is AFTER the filters, since the filters look very impressive.
Even if you had a 3rd Harmonic
By
Gordon Gibby KX4Z
·
#105643
·
|
Re: New board is dead!
I just (09:50 CEST) tried out Gyula's download link:
It worked seamlessly without any interruptions via a 100Mbit/s VDSL internet line by "Deutsche Telekom" and took approx. 7 minutes on an Android
By
Joerg DB2OO
·
#105642
·
|
Re: Ship method from HF Signal
Hello Noel,
What Gerald has said is correct. We only ship through DHL as of now. We
usually see the order being delivered to the US within 5 -7days and many
times it has been delivered on the 3rd day
By
Support HF Signal
·
#105641
·
|