Date   
Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

Hi David,

My Micron using ADS6143.
I masseur again.
About 160mA when inactive mode.
About 360mA when active mode.
I don't know why.....?

When 0.1uF and 1nF were jumpered, the sensitivity of the low band
increased. The sensitivity is equivalent to HiQDRmini.


Leo


On Mon, 21 Oct 2019 20:34:08 -0700
"David Fainitski" <rolin791@...> wrote:

Hello, Leo

370 mA is in inactive mode when ADC is powered down. Try to messure in active mode, when receiver is working.

SDR Micron is using 270 Ohm feedback resistor instead 499 Ohm in HiqSDR mini.
This is matched to 15дБ gain instead 20 dB gain in Hiqsdr mini.


--
Leo Gotoh <LeoGoto@...>
http://travelx.org

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

David Fainitski
 

Hello, Leo

370 mA is in inactive mode when ADC is powered down. Try to messure in active mode, when receiver is working.

SDR Micron is using 270 Ohm feedback resistor instead 499 Ohm in HiqSDR mini.
This is matched to 15дБ gain instead 20 dB gain in Hiqsdr mini. 
 

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

Hi David,

I found a minor error.
I think 0.1uF and 1nF are in parallel, but they are not connected.

Thanks, Leo
--
Leo Gotoh <LeoGoto@...>
http://travelx.org

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

As for the Micron SDR,

I measured the current of USB. It was about 370mA. ADC of Micron SDR
uses ADS6143.
Sensitivity and dynamic range are inferior compared to HiQSDR mini
(using ADS6145) with almost the same configuration.
A VR is attached temporary so that the gain of AD8099 can be changed.
The gain of HiQSDRmini is about 10dB. If the Micron SDR with the same
antenna and the same gain is used, the ADC CLIP LED lights up and
reception cannot be received. Currently it is down to 6dB.

Leo WH2Q, 73.

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

Hi David,

Thank you for reply.
OK. Yes, eeprom is almost null data inside.

Thanks, Leo

On Fri, 11 Oct 2019 08:07:18 -0700
"David Fainitski" <rolin791@...> wrote:

Thank you,? Leo
Because that template was created from 93C56.
Technically it is possible to use 93c46 by writing the settings manually.


--
Leo Gotoh <LeoGoto@...>
http://travelx.org

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

David Fainitski
 

Thank you,  Leo
Because that template was created from 93C56.
Technically it is possible to use 93c46 by writing the settings manually. 

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

Hi All,

SDR Micron(Only HF) is working now.

Bom list Memory IC is incorrect. The template could not be written due
to an error.
It is not 93C46BT-I/OT but 93C56BT-I/OT or 93LC56BT-I/OT.
I was useing 93LC56BT-I/OT because 93C56BT-I/OT was not in stock.

Leo Gotoh <LeoGoto@...>
http://travelx.org

Re: Changing the IBM Power supply fan for the Digikey fan

Sid Boyce
 

Thanks David,
I'll do that. Thinking about it later, as long as those 2 wires are not connected to +12V, only one way the fan will work.
73 ... Sid.

On 09/10/2019 16:46, David Fainitski wrote:
Hello,  Sid
Only one way will work properly,  so try.Â
You have only two different ways.Â

On Wed, Oct 9, 2019, 6:16 AM Sid Boyce <boyce.sid@... <mailto:boyce.sid@...>> wrote:

Hi David,

The pinout for the existing power supply fan differs from what I
see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND,
Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

Re: Changing the IBM Power supply fan for the Digikey fan

David Fainitski
 

Hello,  Sid
Only one way will work properly,  so try. 
You have only two different ways. 

On Wed, Oct 9, 2019, 6:16 AM Sid Boyce <boyce.sid@...> wrote:
Hi David,

The pinout for the existing power supply fan differs from what I see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND, Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David

Changing the IBM Power supply fan for the Digikey fan

Sid Boyce
 

Hi David,

The pinout for the existing power supply fan differs from what I see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND, Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David

External IO drive capability?

Steven Wilson
 

David,

Do you happen to know the drive capability of the FPGA IOs that are connected to the external SPI bus? 

Thanks,

Steve KA6S

Re: building Ody2

David Fainitski
 

Hello,  Mark
1.2V bus shorting is a simple thing in the assembly process.  You don't need the schematic to find shortened blocking capacitor on the bottom or shortened FPGA balls.  Also checking the FPGA key is aligned properly to board's key. 

Re: building Ody2

Marc olanie
 

Thanks a lot, David

In fact, that was not exactly the question. I was wondering which "branch" of the spi bus you chose, as the Alex protocol needs 2 Enable lines to be fully functional, and not only one. With only one, I'll have to butcher the cabling of my Alex frontend to fit the ody reassignment. 

This is not important anymore. I stoped working on this project, as the fpga 1.2V rail has a short to ground, and Sprint Layout is hardly able to give me the full equipotential. Without schematic, it would be quite impossible to find such a bug, and I don't imagine spending more money, buying a new board and a new fpga. 

Anyhow, a big thanks you to you, David. For your efforts, for your involvment in this project, and for your ideas. 
Wish you a nice week-end
Marc


Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 

" I know it wasn't Beethoven, Brahms, the Beatles or Dave Brubeck"
... you only take four, so what ? (silly private bad joke)

Btw, still waiting for my 122 MHz VCO. My MCU firmware has been successfully flashed yesterday with MPLAB XPE (since the right version of pickit 3 programmer is rather hard to be found and those I found didn't had a "low voltage programming" option)

I think an Odyssey version of the Raspberry Pi python code developped by Steve to load the gateware of the Hermes Lite V2 would be a very smart initiative. Just to avoid dealing with bad Blaster clones that nuke the kernel. Without mentionning the fact that a small raspi app is always better than an incredibly heavy Quartus install.

I just understood the way the bootloader was running and how were switched the different gatewares during the bootstrap. It's definitely a great idea, far superior than the OpenHPSDR way to flash the gateware. Kudos to David

I'll try to load all that stuff with a USB Blaster (a good one) today. I hope the fpga only need/check the 10 MHz clock to be programmed.
Marc f6itu

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Sid Boyce
 

Then again I find the music in many presentations a nuisance and an irritation as it adds zero to the topic.
I wonder who ever started the practice, I know it wasn't Beethoven, Brahms, the Beatles or Dave Brubeck.
73 ... Sid.

On 21/09/2019 12:01, Marc olanie wrote:

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

Have a nice movie session :- o

73’

Marc f6itu

*De :* ody-sdr@groups.io <ody-sdr@groups.io> *De la part de* Kurt Poulsen via Groups.Io
*Envoyé :* samedi 21 septembre 2019 12:37
*À :* ody-sdr@groups.io
*Objet :* Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

*Fra:*ody-sdr@groups.io <mailto:ody-sdr@groups.io> <ody-sdr@groups.io <mailto:ody-sdr@groups.io>> *PÃ¥ vegne af *David Fainitski
*Sendt:* 16. september 2019 18:09
*Til:* ody-sdr@groups.io <mailto:ody-sdr@groups.io>
*Emne:* Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect.
Try this

https://youtu.be/1wKZJvoZehk

--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Kurt Poulsen
 

Hi Marc
Thank you for the comments, I can see it but for a small section this angled white test is shown with no audio.
I have never seen it before, but as we latterly got a social democratic government Youtube may be in nag nag mode
😊

I have in June visited HAMRADIO 2019 and I came home with a lot of European spirit which must last until next year.

Kind regards

Kurt     

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af Marc olanie
Sendt: 21. september 2019 13:01
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

 

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

 

Have a nice movie session :- o

73’

Marc f6itu

 

De : ody-sdr@groups.io <ody-sdr@groups.io> De la part de Kurt Poulsen via Groups.Io
Envoyé : samedi 21 septembre 2019 12:37
À : ody-sdr@groups.io
Objet : Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

 

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

 

Have a nice movie session :- o

73’

Marc f6itu

 

De : ody-sdr@groups.io <ody-sdr@groups.io> De la part de Kurt Poulsen via Groups.Io
Envoyé : samedi 21 septembre 2019 12:37
À : ody-sdr@groups.io
Objet : Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Kurt Poulsen
 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 
Edited

hi Steven
Any manufacturer will do the same. As long as the soldermask is wrong, all via are "tented" by default. This is specifically mentionned by all pcb manufacturers (and it's a necessity if you don't want shorts between vias and pads during a reflow process). It is strictly impossible to have some tenting if the gerber file shows a well defined solderpaste mask. 

To avoid this kind of trouble, a "no soldermask" zone and a solderpaste mask should be defined -and designed- for each IC if handsoldering is considered (and probably a large 1.5mm to 2 mm "super via"  for the gnd pad soldering when possible) 

in this case, you can circumvent the problem with a fiberglass pencil and scratch the tenting and the surrounding area of the lower side.  You can also (not recommanded) use a hot air reworking gun and solder your QFN after some pre-tinning the pads on the component side. That's what I call a "a phone repairer tip". Not elegant at all but it works (not always) 
73'
Marc f6itu
ps : using fiberglass pencils is a rather dangerous process. One should wear gloves, protective googles and a mask to avoid breathing small glass particles. The working area should be carefully cleaned after each operation. 

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Steven Wilson
 

Who manufacturered the boards?


On Fri, Sep 20, 2019, 2:42 PM David Fainitski <rolin791@...> wrote:

Hi All
Unfortunuately, I have received today spoiled PCB with insulated grounding vias for grounding pads of ICs.

Check your boards curefully