Date   
Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

K4KDR
 

I share Jim's question and appreciate your response!  However, it still leaves me reluctant to make any alterations, as everything (including 1200 Baud Packet) works perfectly.  By everything, of course I mean what I've tried so far which would be JS8Call, FT8, ARDOP Winlink, & 1200 Baud Packet in the form of Winlink, Terrestrial APRS, & satellite APRS.

I did have to increase the levels higher than had been suggested in the documentation & as seen in various online comments that various people have been kind enough to contribute, but just thought perhaps that was specific to my FT-857d:

Screenshot from 2019-09-22 15-13-07.png

... so I suppose the obvious course if action is "If it's not broke, don't fix it", but naturally I don't want to impede my ability to do everything I might want to with this setup down the road.  When time permits I'll carefully remove those caps and see what changes.

Thanks again.

-Scott,  K4KDR

======================

On Sun, Sep 22, 2019 at 3:09 PM Bryan Hoyer <bhhoyer@...> wrote:
Hi Jim,

First off, if the GPS antenna connector is on the same side as the Mini DIN-6 Connectors your board is not affected.

Many low bandwidth HF Programs may work but you will need to raise the level. 1200 Baud Packet is a non-starter.

Bryan K7UDR

On Sep 22, 2019, at 12:05 PM, Jim Erickson <jim@...> wrote:

Apologies if this is a silly question, but how will the bug manifest itself?  What applications would be affected and in what way are they affected.  I haven’t pulled my board out of it’s case to judge how difficult it will be to perform the work myself but am curious what happens if I leave the board as is?

Thanks
Jim
------
73,
Jim
VA7SHG - Phone
VE7TGZ - Other

On Sep 15, 2019, at 12:30, John D Hays - K7VE <john@...> wrote:


We have discovered that a capacitor was installed in the audio filter chain that can prevent certain applications from functioning properly.

We apologize that this was not detected before the boards were shipped.

In the next few days we will publish instructions for those who would like to do a field repair.

At the same time we will provide instructions on how to have NW Digital Radio perform the repair.

Please do not return your boards before instructions are provided.


-- 


John D. Hays
Director

  


Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

Hi Jim,

First off, if the GPS antenna connector is on the same side as the Mini DIN-6 Connectors your board is not affected.

Many low bandwidth HF Programs may work but you will need to raise the level. 1200 Baud Packet is a non-starter.

Bryan K7UDR

On Sep 22, 2019, at 12:05 PM, Jim Erickson <jim@...> wrote:

Apologies if this is a silly question, but how will the bug manifest itself?  What applications would be affected and in what way are they affected.  I haven’t pulled my board out of it’s case to judge how difficult it will be to perform the work myself but am curious what happens if I leave the board as is?

Thanks
Jim
------
73,
Jim
VA7SHG - Phone
VE7TGZ - Other

On Sep 15, 2019, at 12:30, John D Hays - K7VE <john@...> wrote:


We have discovered that a capacitor was installed in the audio filter chain that can prevent certain applications from functioning properly.

We apologize that this was not detected before the boards were shipped.

In the next few days we will publish instructions for those who would like to do a field repair.

At the same time we will provide instructions on how to have NW Digital Radio perform the repair.

Please do not return your boards before instructions are provided.


-- 


John D. Hays
Director

  


Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

Jim Erickson
 

Apologies if this is a silly question, but how will the bug manifest itself?  What applications would be affected and in what way are they affected.  I haven’t pulled my board out of it’s case to judge how difficult it will be to perform the work myself but am curious what happens if I leave the board as is?

Thanks
Jim
------
73,
Jim
VA7SHG - Phone
VE7TGZ - Other

On Sep 15, 2019, at 12:30, John D Hays - K7VE <john@...> wrote:


We have discovered that a capacitor was installed in the audio filter chain that can prevent certain applications from functioning properly.

We apologize that this was not detected before the boards were shipped.

In the next few days we will publish instructions for those who would like to do a field repair.

At the same time we will provide instructions on how to have NW Digital Radio perform the repair.

Please do not return your boards before instructions are provided.


--


John D. Hays
Director

  

moderated Re: Early Adopter case???

W2TLJ <tjoneson@...>
 

Gee
 Too bad you couldn't keep your product in the USA. MAGA

On Sun, Sep 22, 2019, 11:45 Steve, N9VW <steve@...> wrote:
Bryan,
I'd be plenty happy with 2 of the original unmodified cases if you happen to have any left.

73 de Steve, N9VW

On 9/22/2019 7:31 AM, Bryan Hoyer wrote:
Hi August,

Last Month I sent hacked up cases and Pi 3 and 4 to the manufacturer in China via USPS where they were stuck in Customs for a month then disappeared. We have sent another batch via a different carrier. I’ll post an update once I confirm they have made it to the manufacturer.

John Hays is at DCC in Detroit and it occurs to me that I first talked about cases a year ago at DCC in Albuquerque. I am keenly aware of the delay in production.

Bryan K7UDR

On Sep 21, 2019, at 6:02 PM, August Johnson <augjohnson@...> wrote:

I'm going to ask again about the early adopter aluminum case. I know you'll just say "Refer to the Blog" but since the last entry on the blog about the case is June 5, I think it's about time for this to be addressed. And just saying "You're free to cancel your order" is avoiding answering the question. WHEN can us early adopters expect to receive the cases we ordered??? I ordered this case many months ago!

August Johnson KG7BZ


Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

Edouard Lafargue
 

Thanks Bryan!

  In any case, the rework was useful - default alsamixer settings that are shipped with the n7nix repository now work out of the box...

Ed


On Sun, Sep 22, 2019 at 9:25 AM Bryan Hoyer <bhhoyer@...> wrote:
The output of the DAC is clean so the filter is unnecessary from that standpoint. There may be some value from an RFI standpoint but you would be better off with a Ferrite on the Radio Cable.

On Sep 21, 2019, at 5:23 PM, Edouard Lafargue <edouard@...> wrote:


  Is there any benefit putting the right value caps back in place rather than just removing them?

Ed

On Fri, Sep 20, 2019 at 1:36 PM Bryan Hoyer <bhhoyer@...> wrote:
Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.

<DRAWS6Rework.png>

If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR



Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

The output of the DAC is clean so the filter is unnecessary from that standpoint. There may be some value from an RFI standpoint but you would be better off with a Ferrite on the Radio Cable.

On Sep 21, 2019, at 5:23 PM, Edouard Lafargue <edouard@...> wrote:


  Is there any benefit putting the right value caps back in place rather than just removing them?

Ed

On Fri, Sep 20, 2019 at 1:36 PM Bryan Hoyer <bhhoyer@...> wrote:
Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.

<DRAWS6Rework.png>

If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR



moderated Re: Early Adopter case???

Steve, N9VW
 

Bryan,
I'd be plenty happy with 2 of the original unmodified cases if you happen to have any left.

73 de Steve, N9VW

On 9/22/2019 7:31 AM, Bryan Hoyer wrote:
Hi August,

Last Month I sent hacked up cases and Pi 3 and 4 to the manufacturer in China via USPS where they were stuck in Customs for a month then disappeared. We have sent another batch via a different carrier. I’ll post an update once I confirm they have made it to the manufacturer.

John Hays is at DCC in Detroit and it occurs to me that I first talked about cases a year ago at DCC in Albuquerque. I am keenly aware of the delay in production.

Bryan K7UDR

On Sep 21, 2019, at 6:02 PM, August Johnson <augjohnson@...> wrote:

I'm going to ask again about the early adopter aluminum case. I know you'll just say "Refer to the Blog" but since the last entry on the blog about the case is June 5, I think it's about time for this to be addressed. And just saying "You're free to cancel your order" is avoiding answering the question. WHEN can us early adopters expect to receive the cases we ordered??? I ordered this case many months ago!

August Johnson KG7BZ


Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

The output of the DAC is clean so there is no benefit from that standpoint. There may be some value in reducing RFI from the radio but I can’t prove that.

On Sep 21, 2019, at 5:23 PM, Edouard Lafargue <edouard@...> wrote:


  Is there any benefit putting the right value caps back in place rather than just removing them?

Ed

On Fri, Sep 20, 2019 at 1:36 PM Bryan Hoyer <bhhoyer@...> wrote:
Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.

<DRAWS6Rework.png>

If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR



moderated Re: Early Adopter case???

 

Hi August,

Last Month I sent hacked up cases and Pi 3 and 4 to the manufacturer in China via USPS where they were stuck in Customs for a month then disappeared. We have sent another batch via a different carrier. I’ll post an update once I confirm they have made it to the manufacturer.

John Hays is at DCC in Detroit and it occurs to me that I first talked about cases a year ago at DCC in Albuquerque. I am keenly aware of the delay in production.

Bryan K7UDR

On Sep 21, 2019, at 6:02 PM, August Johnson <augjohnson@...> wrote:

I'm going to ask again about the early adopter aluminum case. I know you'll just say "Refer to the Blog" but since the last entry on the blog about the case is June 5, I think it's about time for this to be addressed. And just saying "You're free to cancel your order" is avoiding answering the question. WHEN can us early adopters expect to receive the cases we ordered??? I ordered this case many months ago!

August Johnson KG7BZ

moderated Re: Early Adopter case???

Marc Lacy
 

Yes. When?

 

From: udrc@nw-digital-radio.groups.io [mailto:udrc@nw-digital-radio.groups.io] On Behalf Of August Johnson
Sent: Saturday, September 21, 2019 6:02 PM
To: udrc@nw-digital-radio.groups.io
Subject: [draws and udrc] Early Adopter case???

 

I'm going to ask again about the early adopter aluminum case. I know you'll just say "Refer to the Blog" but since the last entry on the blog about the case is June 5, I think it's about time for this to be addressed. And just saying "You're free to cancel your order" is avoiding answering the question. WHEN can us early adopters expect to receive the cases we ordered??? I ordered this case many months ago!

August Johnson KG7BZ

moderated Early Adopter case???

August Johnson KG7BZ
 

I'm going to ask again about the early adopter aluminum case. I know you'll just say "Refer to the Blog" but since the last entry on the blog about the case is June 5, I think it's about time for this to be addressed. And just saying "You're free to cancel your order" is avoiding answering the question. WHEN can us early adopters expect to receive the cases we ordered??? I ordered this case many months ago!

August Johnson KG7BZ

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

Edouard Lafargue
 


  Is there any benefit putting the right value caps back in place rather than just removing them?

Ed


On Fri, Sep 20, 2019 at 1:36 PM Bryan Hoyer <bhhoyer@...> wrote:
Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.


If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

Every board with the SMA change.

On Sep 20, 2019, at 3:29 PM, K4KDR <scott23192@...> wrote:

Thanks for all the info that's been shared!

Is there a way to identify the affected boards from the O/S?  GUI or command line either one?

Or, is it just every board with the SMA connector down at the end opposite the USB & ethernet jacks?

Thanks!

-Scott,  K4KDR

==========================

On Fri, Sep 20, 2019 at 6:24 PM Bryan Hoyer <bhhoyer@...> wrote:
This only affects Rev 6. The boards with the SMA next to the power connector.

Bryan K7UDR

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

K4KDR
 

Thanks for all the info that's been shared!

Is there a way to identify the affected boards from the O/S?  GUI or command line either one?

Or, is it just every board with the SMA connector down at the end opposite the USB & ethernet jacks?

Thanks!

-Scott,  K4KDR

==========================


On Fri, Sep 20, 2019 at 6:24 PM Bryan Hoyer <bhhoyer@...> wrote:
This only affects Rev 6. The boards with the SMA next to the power connector.

Bryan K7UDR

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

This only affects Rev 6. The boards with the SMA next to the power connector.

Bryan K7UDR

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

Chris Metcalf
 

How do we check to see if our board is one of the affected boards?


On Fri, Sep 20, 2019 at 1:36 PM Bryan Hoyer <bhhoyer@...> wrote:
Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.


If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR

Re: DRAWS™ Latest Board Run Defect (Standby) #recall #draws

 

Here is there info needed to address the problem:

The Audio output has an RC Filter of 100ohms and 0.1uF for a -3dB frequency of 16kHz.

The boards were stuffed with 10uF instead for a 160Hz cutoff.

The filter is not really necessary so the caps may be removed.


If you do the rework yourself, send an email to sales@... with REWORK <order#> as the subject and we will refund $10.

Or you may send the board only to:

NW Digital Radio
REWORK<order#>
150 Cessna Ave
Friday Harbor WA 908250

We will rework it for you and refund $5 for the postage

We have updated our manufacturing test to provide better coverage.

Thanks,
Bryan K7UDR

Re: #draws #gps #time #1pps #FrequencyReference #1pps #frequencyreference #draws #gps #time

 

The 1PPS Signal is on IO7, Pin 26 on the 40 pin header if you have an Oscillator with 1PPS Sync input.

Bryan K7UDR

Re: #draws #gps #time #1pps #FrequencyReference #1pps #frequencyreference #draws #gps #time

 

No GPSDO is implemented


On Thu, Sep 19, 2019, 12:23 Konrad Roeder -- WA4OSH <konrad.roeder@...> wrote:

I'm interested in using DRAWS to drive my FT-818ND for digital applications up in the microwave bands Eg. 904, 1296, 2304 MHz, etc (FT8, JS8CALL, etc) as well as a precise frequency reference for my LO.  I understand that a DRAWS has a GPS on board with a 1pps reference for NTP.  Is that 1PPS signal available for a frequency reference so that it can be used as a GPSDO with some additional parts?  I'm currently using a Leo Bodnar Mini Precision GPS Reference clock to generate very stable reference frequencies between 400Hz and 810MHz.  Eg.  1296 MHz = 2x576MHz + 144 MHz.   A stable LO is essential for working up on the microwave bands.  I just don't want two GPSs in my transverter.

Ideas?

--Konrad, WA4OSH

 

 

 

#draws #gps #time #1pps #FrequencyReference #1pps #frequencyreference #draws #gps #time

Konrad Roeder -- WA4OSH
 

I'm interested in using DRAWS to drive my FT-818ND for digital applications up in the microwave bands Eg. 904, 1296, 2304 MHz, etc (FT8, JS8CALL, etc) as well as a precise frequency reference for my LO.  I understand that a DRAWS has a GPS on board with a 1pps reference for NTP.  Is that 1PPS signal available for a frequency reference so that it can be used as a GPSDO with some additional parts?  I'm currently using a Leo Bodnar Mini Precision GPS Reference clock to generate very stable reference frequencies between 400Hz and 810MHz.  Eg.  1296 MHz = 2x576MHz + 144 MHz.   A stable LO is essential for working up on the microwave bands.  I just don't want two GPSs in my transverter.

Ideas?

--Konrad, WA4OSH