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Re: JLCPCB Price Increase
What was the charge for shipping by DHL (ballpark)? Jack, W8TEE
By jjpurdum · #33916 ·
Re: Just a few
I was glad my hip held out and I could come by. Wish I could have spent more time chatting. Tim
By Tim O'Rourke · #33915 ·
Re: JLCPCB Price Increase
Just ordered some PCBs from JLCPCB. Looks like price for 5 boards is back to $2, but there was a $3.63 charge for customs and duties added. DHL shipping cost seems to have also increased by about 50%.
By John P · #33914 ·
Re: [AmateurRadioBuilders] Just a few
And Hamvention is OVER! We had a great time¡­ in-doors this year. Sold 50 fill T41 board sets, ten 20W PAs, ten of the latest T41 books (signed/personalized editions), and many other kits. Suitcase
By K9HZ · #33913 ·
Re: Test Equipment
Hi John, I use a two-channel Siglent SDG 2122x generator that can synchronize the channels and phase shift one by 90 deg - hence quadrature signals. The Spectrum analyze is not entirely necessary and
By Albert Peter · #33912 ·
Re: Just a few
Hey everyone! Tim, W4YN donated some very nice 3 wire pre-made cables, twisted, to be used to connect the teensy audio hat to the main board (the 90 degree pins). I will include these free of
By K9HZ · #33911 ·
Re: New T41 Website
You know me. ¡°K9HZ Boards and Kits¡±. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C Operator
By K9HZ · #33910 ·
Re: First Contact
Cool Mark! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C Operator Villa Grand Piton - J68HZ
By K9HZ · #33909 ·
Re: RF board and BOM differences
Correct. That was due to an update. Oliver has unlocked the method of locating the old files for you¡­ the ¡°Old files¡± directory in each of the BOM, schematic, gerber, etc directories. Dr.
By K9HZ · #33908 ·
Re: Help: Audio is pumping on bands 17 and 15.
I've not tried testing this particular configuration, so I'm speculating here. If you don't have any receive circuitry populated then the only signal present to be digitized is the self-induced noise
By Oliver KI3P · #33907 ·
Help: Audio is pumping on bands 17 and 15.
The yellow LED next to the reset button on the Teensy board lights up brightly and dimly. And the audio is pumping most strongly on bands 17 and 15 at the same time. What's the problem? Only the
By WF.Fiebig@... · #33906 ·
Re: First Contact
Yes. Great news Mark. Congratulations. It is an awesome milestone dave, n3ds
By D Solt · #33905 ·
Re: Test Equipment
John - A signal generator has many uses.? I use one often.? But if you're goal is just finishing the T41, I would focus on the calibration directions (
By Terrance Robertson, KN6ZDE · #33904 ·
Re: RF board and BOM differences
I think that's right, see an earlier version of the schematic here:
By Oliver KI3P · #33903 ·
RF board and BOM differences
I have the latest RF board from Bill and when adding the components, I noticed that C3, C14, C83, and C84 which are in the BOM do not have pads on the board...unless I missed something. Was this a
By John Owens K1JO · #33902 ·
Re: Test Equipment
On Sun, May 18, 2025 at 04:50 PM, Terrance Robertson, KN6ZDE wrote: Thanks Terrance. When you say (see below) that the two-tone signals are created internally now with the V66-9 cal routine, does that
By John Owens K1JO · #33901 ·
Re: First Contact
That's wonderful to hear, Mark! May it bring you many contacts and much joy.
By Oliver KI3P · #33900 ·
Re: First Contact
Awesome!!
By Tom - AJ8X · #33899 ·
Re: Test Equipment
You can import signal files into Digilent instruments as well.? You can also create custom functions directly in the tool.? Here's my first attempt at creating quadrature two-tone signals. I still
By Terrance Robertson, KN6ZDE · #33898 ·
First Contact
Well, after a long, arduous (my opinion!) but enjoyable journey, I finally got on the air.? 10 watts, EPA into Southern Louisiana using a home brew 20M vertical dipole, thru 50' of coax.? RST of 52
By epif18@... · #33897 ·