Re: [AmateurRadioBuilders] RF Board update.

#32836

Bill

So what are the changes that Al is referring to?

John

G0SDF

Teensy Version

#32835

Any advantage now or future to order spare Teensy with ethernet option?

?

Tim?

Re: RF Board update.

#32834

开云体育

Yep sorry.. .that’s it.?? It IS on the new schematic.? I think what happened is I tried to put it on the schematic (gave it one designator) and then I asked Oliver to do it and we got different part designators between us.? I’ll get that cleaned up tonight.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Phil Taylor via groups.io
Sent: Thursday, February 20, 2025 5:51 PM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

Hi Bill

?

Did you mean C85 rather than C74?

?

Regards
Phil VK2KKZ

?

On Thu, Feb 20, 2025 at 02:48 PM, K9HZ wrote:

BTW… the new stack of RF Boards here… have the following updates:
?
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
?

?

--

Regards
Phil VK2KKZ

Re: CAT

#32833

On 2025-02-20 15:54, K9HZ wrote:
SO send him an email and find out what he did to get it running......Did that.

                    - Jerry

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
VP2EHZ
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Moderator: North American QRO Group at Groups.IO.
Moderator: Amateur Radio Builders Group at Groups.IO.
email:? bill@...
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of jerry-KF6VB
Sent: Thursday, February 20, 2025 5:30 PM
To: [email protected]
Cc: Joerg DB2OO via groups.io <db2oo.ju@...>
Subject: Re: [SoftwareControlledHamRadio] CAT
On 2025-02-20 14:51, Joerg DB2OO via groups.io wrote:
Hello Jerry,
You might want to have a look at the "Teensy SDR Project" by K7MDL:
*** Oooh, that's exactly what I needed!  A predefined usb_desc.h section
with the exact functions - two serials and one audio.  I copied that into my
code, and am now compiling.
Rats.  It behaves the same as mine.  "Composite device did not start",
no USB audio, no USB serial.
- Jerry, KF6VB

Re: CAT

#32832

SO send him an email and find out what he did to get it running...


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
VP2EHZ

Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois

Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com

Moderator: North American QRO Group at Groups.IO.
Moderator: Amateur Radio Builders Group at Groups.IO.

email:? bill@...

Show quoted text

-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of jerry-KF6VB
Sent: Thursday, February 20, 2025 5:30 PM
To: [email protected]
Cc: Joerg DB2OO via groups.io <db2oo.ju@...>
Subject: Re: [SoftwareControlledHamRadio] CAT

On 2025-02-20 14:51, Joerg DB2OO via groups.io wrote:
Hello Jerry,

You might want to have a look at the "Teensy SDR Project" by K7MDL:
*** Oooh, that's exactly what I needed!  A predefined usb_desc.h section
with the exact functions - two serials and one audio.  I copied that into my
code, and am now compiling.

    Rats.  It behaves the same as mine.  "Composite device did not start",
no USB audio, no USB serial.

               - Jerry, KF6VB

Re: RF Board update.

#32831

Hi Bill

?

Did you mean C85 rather than C74?

?

Regards
Phil VK2KKZ

?

On Thu, Feb 20, 2025 at 02:48 PM, K9HZ wrote:

BTW… the new stack of RF Boards here… have the following updates:

?

Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.

?

?

--

Regards
Phil VK2KKZ

Re: CAT

#32830

On 2025-02-20 14:51, Joerg DB2OO via groups.io wrote:
Hello Jerry,
You might want to have a look at the "Teensy SDR Project" by K7MDL:
*** Oooh, that's exactly what I needed!  A predefined usb_desc.h section with
the exact functions - two serials and one audio.  I copied that into my
code, and am now compiling.

   Rats.  It behaves the same as mine.  "Composite device did not start",
no USB audio, no USB serial.

              - Jerry, KF6VB

Re: CAT

#32829

Hello Jerry,

?

You might want to have a look at the "Teensy SDR Project" by K7MDL:

?

That is a complete SDR fitting into a 160x100mm Hammond box including a 5" touch screen. The SDR software is running on a Teensy 4.1 leveraging the USB-Interface for USB Audio (input and output) and 2 virtual serial interfaces over the same physical USB connector. One virtual serial interface is used for CAT control and the other for debugging purposes.?

You can find the full source code with explanations how to configure the Arduino environment on github: https://github.com/K7MDL2/KEITHSDR ,

https://github.com/K7MDL2/KEITHSDR/wiki

?

I think it would even be possible to modify the code, so that it could control the T41 hardware. The display is essentially the same (just different size, but same resolution using an RA8875) and it is leveraging the Teensy Audio board for RX and TX.

--

73, Joerg - DB2OO

Re: CAT

#32828

开云体育

Ok… same as the 2036 with an extra port (for inside the radio).?? Hmmm I have to look into this stuff to see what I can do with it.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Doug W via groups.io
Sent: Thursday, February 20, 2025 10:45 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] CAT

?

On Thu, Feb 20, 2025 at 10:17 AM, K9HZ wrote:

Yeah that's what the K3 has too... a TUSB2036 3 to 1 hub,

To add to this, My IC-7300 has a TUSB2046BIVFRG4

Re: CAT

#32827

On Thu, Feb 20, 2025 at 10:17 AM, K9HZ wrote:

Yeah that's what the K3 has too... a TUSB2036 3 to 1 hub,

To add to this, My IC-7300 has a TUSB2046BIVFRG4

Re: RF Board update.

#32826

开云体育

Yes… Its shown on the BOM that is out there currently…

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 10:17 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

My bad, I loaded the wrong schematic. If I want to add C74, is it a 0.1?F bypass cap like C85?

?

Thanks!

?

Jack, W8TEE

?

On Thursday, February 20, 2025 at 11:07:07 AM EST, K9HZ <bill@...> wrote:

?

It’s out there… Here it is:

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 8:12 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

Mornin' Bill:

?

I'd like to order one of the new RF boards. Is there a new schematic for the board? I didn't see it on your web site.

?

Jack, W8TEE

?

On Wednesday, February 19, 2025 at 10:48:23 PM EST, K9HZ <bill@...> wrote:

?

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

--
Jack, W8TEE

Re: RF Board update.

#32825

开云体育

You can do it on your board by just standing the capacitor straight up in the air from the leg between Y1 and L7… and the other side to a close ground pin.? I did that and it seemed to work fine.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 10:17 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

My bad, I loaded the wrong schematic. If I want to add C74, is it a 0.1?F bypass cap like C85?

?

Thanks!

?

Jack, W8TEE

?

On Thursday, February 20, 2025 at 11:07:07 AM EST, K9HZ <bill@...> wrote:

?

It’s out there… Here it is:

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 8:12 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

Mornin' Bill:

?

I'd like to order one of the new RF boards. Is there a new schematic for the board? I didn't see it on your web site.

?

Jack, W8TEE

?

On Wednesday, February 19, 2025 at 10:48:23 PM EST, K9HZ <bill@...> wrote:

?

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

--
Jack, W8TEE

Re: [AmateurRadioBuilders] RF Board update.

#32824

开云体育

I did… those are just BOM and schematic changes, not board changes so was easy to make…

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of Albert Peter via groups.io
Sent: Thursday, February 20, 2025 4:39 AM
To: [email protected]; [email protected]
Subject: Re: [SoftwareControlledHamRadio] [AmateurRadioBuilders] RF Board update.

?

Bill,

Did you get my note about changes to the component values for the SSB Exciter chain on the RF board? If not , I will re-send it.? These changes enable the flat response and lower adjacent channel images.

Al

AC8GY

?

From: [email protected] <[email protected]> on behalf of K9HZ via groups.io <bill@...>
Sent: Wednesday, February 19, 2025 10:48 PM
To: [email protected] <[email protected]>; [email protected] <[email protected]>
Subject: [AmateurRadioBuilders] RF Board update.

?

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Re: CAT

#32823

Yeah that's what the K3 has too... a TUSB2036 3 to 1 hub, and the three
inputs are a PCM2901 CODEC, a FT232 USB to RS232 converter, and a USB
connection to the PIC processor (for uploading new programming).   It’s a
nice little circuit that would work well on a combo audio board (Hmmmm...).



Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
VP2EHZ

Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois

Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com

Moderator: North American QRO Group at Groups.IO.
Moderator: Amateur Radio Builders Group at Groups.IO.

email:? bill@...

Show quoted text

-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of jerry-KF6VB
Sent: Thursday, February 20, 2025 9:44 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] CAT

On 2025-02-19 20:07, K9HZ wrote:
Actually... My K3 does exactly that... one USB cable that everything
flows over.... digital/CAT and Audio.   I do have the schematics for
that board so I can see how it's done from a hardware standpoint...*** Do does my FTDX10.  Well, at least it used to.  It has a USB hub chip, a
USB audio chip, and a USB serial-port chip.  The serial port functionality
died.  I replaced the chip, but it's still dead.

   I just found a USB stack that can work on a raspberry pi pico.  
"TinyUSB". I'm tempted
to play with that to learn.  The RPI pico has hardware debug!  That stack
also works on many other processors, including the Teensy's.  Or maybe an
RPI zero?
RPI zero has an HDMI port.... and I'm pretty sure it supports I2C.

                       - Jerry, KF6VB

Re: RF Board update.

#32822

My bad, I loaded the wrong schematic. If I want to add C74, is it a 0.1?F bypass cap like C85?

Thanks!

Jack, W8TEE

On Thursday, February 20, 2025 at 11:07:07 AM EST, K9HZ <bill@...> wrote:

It’s out there… Here it is:

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 8:12 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

Mornin' Bill:

?

I'd like to order one of the new RF boards. Is there a new schematic for the board? I didn't see it on your web site.

?

Jack, W8TEE

?

On Wednesday, February 19, 2025 at 10:48:23 PM EST, K9HZ <bill@...> wrote:

?

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

--
Jack, W8TEE

Re: RF Board update.

#32821

开云体育

It’s out there… Here it is:

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

Show quoted text

From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Thursday, February 20, 2025 8:12 AM
To: [email protected]
Subject: Re: [SoftwareControlledHamRadio] RF Board update.

?

Mornin' Bill:

?

I'd like to order one of the new RF boards. Is there a new schematic for the board? I didn't see it on your web site.

?

Jack, W8TEE

?

On Wednesday, February 19, 2025 at 10:48:23 PM EST, K9HZ <bill@...> wrote:

?

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

--
Jack, W8TEE

Re: CAT

#32820

On 2025-02-19 20:07, K9HZ wrote:
Actually... My K3 does exactly that... one USB cable that everything
flows over.... digital/CAT and Audio.   I do have the schematics for
that board so I can see how it's done from a hardware standpoint...*** Do does my FTDX10.  Well, at least it used to.  It has a USB hub chip,
a USB audio chip, and a USB serial-port chip.  The serial port functionality
died.  I replaced the chip, but it's still dead.

  I just found a USB stack that can work on a raspberry pi pico.  "TinyUSB". I'm tempted
to play with that to learn.  The RPI pico has hardware debug!  That stack
also works on many other processors, including the Teensy's.  Or maybe an RPI zero?
RPI zero has an HDMI port.... and I'm pretty sure it supports I2C.

                      - Jerry, KF6VB

Re: Audio Hat Hangup

#32819

These may help. Ken will also custom build at a reasonable price.?

Re: RF Board update.

#32818

Mornin' Bill:

I'd like to order one of the new RF boards. Is there a new schematic for the board? I didn't see it on your web site.

Jack, W8TEE

On Wednesday, February 19, 2025 at 10:48:23 PM EST, K9HZ <bill@...> wrote:

BTW… the new stack of RF Boards here… have the following updates:

?

Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with no load.? MF done in software now.
Added a cap C74 at the junction of L7 and Y1 VDD. ??This was inadvertently missed in all versions.? If anything, cleans up the noise floor a little.
Changed U106 to a AD8599, and U107 to a OPA2209 (better S/N by at least 20 db). ??Better parts, but the previous parts will work (Identical footprints) in a pinch too with higher S/N.
U21 pin 27 now not connected to anything.
Holes behind the PE4302/PE4312 attenuators to make them easier to solder.

?

This is not intended as a replacement for existing V12.6 RF boards… but rather convenience upgrades if you need a new RF board.

?

I think the RF board is incredible.? It rivals many of the commercial radios I have in my radio room.? Lots of people here and all over the world helped with prototyping, building, suggestions and insight, and testing to make this so.

?

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ

?

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

?

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it:

?

Moderator: North American QRO Group at Groups.IO.

Moderator: Amateur Radio Builders Group at Groups.IO.

?

email:? bill@...

?

--
Jack, W8TEE

Re: Audio Hat Hangup

#32817

Ah Haw now that makes sense.?

I miss the old days of paper catalogs, I was looking for machined pin headers and got no where.?

I know they are out there, was easier to flip thru catalog.?

I have some old ones maybe I can find part numbers and search with those.

Tim W4YN