Date   
Re: Need Schematic Please

Steven Greenfield AE7HD
 

Has something happened to Jim N5IB?

I emailed him at his juno.com address to ask about any leftovers from the last order, and it bounced saying no such address.

Steve Greenfield AE7HD


---In PHSNA@..., <kennnick@...> wrote :

There were quite a few variations on the schematics and associated boards done by Jim, N5IB. He put a document in the top level of the FILES section in 2016 that attempts to organize the various possible configurations.  It's called "PHSNA FAQ Sheet.PDF".  I'd advise looking at that.

...snip..

73-

Nick, WA5BDU


Re: Need Schematic Please

EB4APL
 

Richard,

This group is full of people that are eager to help you, but we need some basic information before. What type of main board do you have? If you are not sure, send us a picture, then we can point you to the schematics and BOM. Since some boards cover options, we will ask you about your plans later.

73 de Ignacio, EB4APL


El 23/04/2018 a las 23:32, Nick Kennedy kennnick@... [PHSNA] escribió:
 
There were quite a few variations on the schematics and associated boards done by Jim, N5IB. He put a document in the top level of the FILES section in 2016 that attempts to organize the various possible configurations.  It's called "PHSNA FAQ Sheet.PDF".  I'd advise looking at that.

Possible variables include:

The original version used a "standard" form factor Arduino, maybe a UNO.  Later, use of the Nano was accommodated.

The original version used a 2N5109 amplifier after the DDS. Another possibility was a MMIC, I think.

Also, there were from the start two form factors of DDS units available from eBay. Jim called them "Type I" and "Type II" and made boards for both.

And later, a board was designed that could accept the AmQRP / MidnightScienceDesigns board called the DDS60 instead of one of the eBay DDS units.

Regarding the Log Power Meter board, very little was changed over the course of the project. The design is close to what Hayward and Larkin published. The board can work with both SMT or DIP versions of the AD8307 chip.

If you can examine your boards and try to determine which of those variations they are built for, that's a start. Or maybe you already have a DDS or preferred Arduino form factor and want to go from there. You can of course kludge things together, like I did with a DDS60 before Jim made his DDS60 board version.

It's a bit confusing but gives a lot of flexibility. Try to figure out what you have and what you want to use and look at the FAQ as a starting point.

73-

Nick, WA5BDU

On Sun, Apr 22, 2018 at 7:25 PM, richj45@... [PHSNA] <PHSNA@...> wrote:
 

I have some unpopulated board and I need the associated schematic.


1) Main board:  13 Oct 2013, Rev 5.01


2) AD8307 board: 13 Oct 2013, Rev 1.20


3) AD8307 board: 13 Oct 2013, Rev 1.25


Thank you for the help.


cheers,

Richard

 



Re: Need Schematic Please

Nick Kennedy
 

There were quite a few variations on the schematics and associated boards done by Jim, N5IB. He put a document in the top level of the FILES section in 2016 that attempts to organize the various possible configurations.  It's called "PHSNA FAQ Sheet.PDF".  I'd advise looking at that.

Possible variables include:

The original version used a "standard" form factor Arduino, maybe a UNO.  Later, use of the Nano was accommodated.

The original version used a 2N5109 amplifier after the DDS. Another possibility was a MMIC, I think.

Also, there were from the start two form factors of DDS units available from eBay. Jim called them "Type I" and "Type II" and made boards for both.

And later, a board was designed that could accept the AmQRP / MidnightScienceDesigns board called the DDS60 instead of one of the eBay DDS units.

Regarding the Log Power Meter board, very little was changed over the course of the project. The design is close to what Hayward and Larkin published. The board can work with both SMT or DIP versions of the AD8307 chip.

If you can examine your boards and try to determine which of those variations they are built for, that's a start. Or maybe you already have a DDS or preferred Arduino form factor and want to go from there. You can of course kludge things together, like I did with a DDS60 before Jim made his DDS60 board version.

It's a bit confusing but gives a lot of flexibility. Try to figure out what you have and what you want to use and look at the FAQ as a starting point.

73-

Nick, WA5BDU

On Sun, Apr 22, 2018 at 7:25 PM, richj45@... [PHSNA] <PHSNA@...> wrote:
 

I have some unpopulated board and I need the associated schematic.


1) Main board:  13 Oct 2013, Rev 5.01


2) AD8307 board: 13 Oct 2013, Rev 1.20


3) AD8307 board: 13 Oct 2013, Rev 1.25


Thank you for the help.


cheers,

Richard

 


Re: Need Schematic Please

Richard Johnson
 

I checked again and found the schematic in presentation at Osakcon.

Where would be the board layout info?

Thanks
Richard

Re: Need Schematic Please

EB4APL
 

Hi Rich,

Did you have browsed the group files section?

And what type of main board do you have: DDS-60 and Nano, Type I Chinese DDS module or Type II?

The power meter boards have identical schematics, there could be some minor board differences.

Regards,

Ignacio, EB4APL


El 23/04/2018 a las 2:25, richj45@... [PHSNA] escribió:
 

I have some unpopulated board and I need the associated schematic.


1) Main board:  13 Oct 2013, Rev 5.01


2) AD8307 board: 13 Oct 2013, Rev 1.20


3) AD8307 board: 13 Oct 2013, Rev 1.25


Thank you for the help.


cheers,

Richard

 


Need Schematic Please

Richard Johnson
 

I have some unpopulated board and I need the associated schematic.


1) Main board:  13 Oct 2013, Rev 5.01


2) AD8307 board: 13 Oct 2013, Rev 1.20


3) AD8307 board: 13 Oct 2013, Rev 1.25


Thank you for the help.


cheers,

Richard

 

Re: Schedule for a new run of boards?

Steven Greenfield AE7HD
 

Thanks, I didn't know that.

Steve Greenfield AE7HD

Re: Schedule for a new run of boards?

 

They rock. I’ve used them for several projects. 

On Apr 20, 2018, at 17:44, lorn@... [PHSNA] <PHSNA@...> wrote:

 

I've never used it but oshpark.com looks intriguing. The board plans can be shared and then anyone can order boards whenever they want without waiting for board runs.

Lorn
KK4KRI

Re: Schedule for a new run of boards?

blackholenulled
 

I've never used it but oshpark.com looks intriguing. The board plans can be shared and then anyone can order boards whenever they want without waiting for board runs.

Lorn
KK4KRI

Schedule for a new run of boards?

Steven Greenfield AE7HD
 

The makerspace I'm in, OlyMEGA, has a few hams that are talking about building network analyzers. I don't know at this time how many are interested, but I was wondering if you have an idea when you might order more PCBs made, or do you have some extras left over?


Steve Greenfield AE7HD http://www.linkedin.com/in/stevenjgreenfield

Re: I am trying to upgrade my PHSNA software and can't find tone.h

David R. Hassall WA5DJJ
 

Dear Nick,


I think I  found my problem.  I was using the wrong morse.ino file.  I found one for version 1.6 and above and it now compiles.  


Thanks,

73

Dave WA5DJJ


Re: I am trying to upgrade my PHSNA software and can't find tone.h

David R. Hassall WA5DJJ
 

Dear Nick,

I downloaded what I thought was the latest software version 1.42 from the website and the PHSNA_VB and was trying to compile it yester day.  I will go through it and see if I can find out where the tone.h  requirement came from.   But it didn't compile in version 1.82 of my Ardunio IDE .   Thanks for the reply.   I will go looking.


take care and have fun

73 Dave WA5DJJ

Re: I am trying to upgrade my PHSNA software and can't find tone.h

Nick Kennedy
 

Some people reported this issue with tone.h several years ago so I made sure that revision 1.6 of PHSNA_VB didn't have any calls to tone(). This was on 3/31/2015. 

Tone.h is a library that's part of the Arduino installation. But it should not be required if you have the current software.

You could word search your .ino files for the occurrence of 'tone(' to make sure you you don't have an earlier version.

Note that "commented out" instances don't count.

73,

Nick, WA5BDU



On Tue, Mar 6, 2018 at 7:16 PM, 'David R. Hassall WA5DJJ' dhassall@... [PHSNA] <PHSNA@...> wrote:
 

Dear gang,

 

I have been off in the weeds for a couple of years and dug out my 60MHz PHSNA to test some filters I am building for my QRSS Grabber.   When I tried to upload the latest PHSNA-VB, I get an error that tone.h is missing.  I searched around the website and I couldn’t find it anywhere.   So can some kind soul send it to me or tell me where to find it.   I am trying to get version 1.42 up and running.  Any suggestions would be appreciated but the manual is much better than it was when I first got into this group.  So that is a help.  

 

Take care and have fun.

 

73 Dave Hassall WA5DJJ  Las Cruces, New Mexico

Website: http://www.zianet.com/dhassall/

 


I am trying to upgrade my PHSNA software and can't find tone.h

David R. Hassall WA5DJJ
 

Dear gang,

 

I have been off in the weeds for a couple of years and dug out my 60MHz PHSNA to test some filters I am building for my QRSS Grabber.   When I tried to upload the latest PHSNA-VB, I get an error that tone.h is missing.  I searched around the website and I couldn’t find it anywhere.   So can some kind soul send it to me or tell me where to find it.   I am trying to get version 1.42 up and running.  Any suggestions would be appreciated but the manual is much better than it was when I first got into this group.  So that is a help.  

 

Take care and have fun.

 

73 Dave Hassall WA5DJJ  Las Cruces, New Mexico

Website: http://www.zianet.com/dhassall/

 

Current PHSNA Type 2 Documentation

Fred Salzer
 

I’m attempting to build a PHSNA using a type 2 DDS and am trying to obtain the latest build information.

 

I started with the PHSNA FAQ Sheet.pdf which is dated  2/18/2016. It says to see folder “Type II PHSNA - version using Type 2 DDS module.” The folder labeled “Type-2 PHSNA - version using Type-2 DDS module & Arduino UNO” contained a BOM dated 5/28/2014 and schematic in a file named “PHSNA Type II Details 21 MAR 2014.”

 

My PCB which was recently purchased is rev 7.03; the most recent schematic I found is rev 7.01 and is only page 1 of 2; the most recent BOM I found is for schematic rev 7.02 and PCB rev 7.01.

 

I’d appreciate pointers to the schematic and BOM that are compatible with PHSNA PCB rev 7.03. Please forgive if I’ve overlooked the obvious.

 

TIA,

 

Fred

W6MDL

Re: Reminder - Maker’s Net on Echolink

K5ESS
 

A new net devoted to Makers (DIYers, homebuilders) has started up on Echolink conference node 9229 (*TECHLINK*).  All those interested in building their own “stuff” are invited.  The net is on Sunday and starts at 21:00 UTC (4:00 P.M. EST, 1:00 P.M. PST).  The net was established by Michael Beaveridge, VE7KI.  See website at http://techlink.hamnet.ca/ .  All aspects of building and programming related to ham radio are open for discussion.  Please drop in.

Mike

K5ESS

 

 

From: PHSNA@... [mailto:PHSNA@...]
Sent: Sunday, November 19, 2017 11:06
To: PHSNA@...
Subject: RE: [PHSNA] Re: Reminder - Maker’s Net on Echolink

 

 

 

 

From: PHSNA@... [mailto:PHSNA@...]
Sent: Sunday, November 12, 2017 10:05
To: PHSNA@...
Subject: RE: [PHSNA] Re: Reminder - Maker’s Net on Echolink

 

 

Reminder.

 

From: PHSNA@... [mailto:PHSNA@...]
Sent: Saturday, November 04, 2017 18:37
To: PHSNA@...
Subject: [PHSNA] Re: Reminder - Maker’s Net on Echolink

 

 

A new net devoted to Makers (DIYers, homebuilders) has started up on Echolink conference node 9229 (*TECHLINK*).  All those interested in building their own “stuff” are invited.  The net is on Sunday and starts at 21:00 UTC (4:00 P.M. EST, 1:00 P.M. PST).  The net was established by Michael Beaveridge, VE7KI.  See website at http://techlink.hamnet.ca/ .  All aspects of building and programming related to ham radio are open for discussion.  Please drop in.

Mike

K5ESS

Re: VNArduino project

Vaclav <vaclav_sal@...>
 

Thanks for the link.
I'll take a peak in more details soon.

I am puzzled why most articles stress " from DC to daylight" - I want to cover HF.
But I understand that some DDS "max frequency spec" are little misleading.


I am currently building the software, starting with  simple LCD.
Reason for LCD is  I use it during software debugging,
It seems that every I2C code is based on AVR Arduino.
Or Python  HI HI HI
So - back to basic - developing simple LCD class...
Not so sure using Raspberry Pi Zero and C++ code was the easiest  way to start.

73 Vaclav


On Thursday, November 30, 2017, 12:29:22 PM CST, DuWayne Schmidlkofer duwayne@... [PHSNA] wrote:


 

Here is another 1 port VNA you might be interested in

https://bitbucket.org/kuchura/eu1ky_aa_v3/wiki/Home

DuWayne KV4QB



On 11/30/2017 12:27 AM, Vaclav vaclav_sal@... [PHSNA] wrote:
 
Clifford thanks,
I'll take a closer look at the datasheet...
As far as using AD8302 module - this is my fist real SMT project and I decided 
NOT to solder SMT IC's especially  when someone already done that.

But you make a good point - there are few copies of the original design with not much circuit description.
Most of the "description " is how wonderfully  it works in different "mode" and with cool display(s) - CD, TFT etc.
.
PS
Just a note - I dropped the "Arduino"  - I have "just " HF VNA.
I used VNArduino in my post becuse that is whan is "on the market".
And for other reasons...

Vaclav

On Wednesday, November 29, 2017, 9:51:09 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:


 

Vaclav,

Read the data sheet for the AD8302. The module just puts it on a board.

There are two independent multi-stage log detectors, and a mixer that
multiplies the two signals. The phase detection relies on the two signals
being close in amplitude (within 30dB, which limits the depth of a null
you can detect). There is no filtering at all, so whatever comes out of
the mixer gets detected as phase, even if the two signals are on
completely different frequencies. Same deal with the relative amplitude;
it's only *relative* amplitude of the transmitted vs *all* received signals.

It was designed to recover a video signal from a clean filtered IF.
I.e. it works ok if you have clean signals and no interference. When
probing an antenna, that pretty often just isn't the case; especially
up on a roof where other antennae are transmitting. A real VNA is
immune to off-channel interference.

Clifford Heath.

> On 30 Nov 2017, at 2:40 PM, Vaclav vaclav_sal@... [PHSNA] wrote:
>
>
> I have not really look at the schematic / concept details of VNArduino.
> The AD8302 module is coming without much doc ( as expected from e-bay) , but from the looks of it the output has some componets , perhaps filter? I will do some "reverse enginnering " when the module arrives.
>
> I am in hardware stage and as much as I appreciate your comments I'll use AD8302 alone for now.
> I need to clean up my spec , I keep a log of "progress" and it is getting little cluttered.
> Give me couple of days.
>
>
>
> On Wednesday, November 29, 2017, 7:49:38 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:
>
>
>
> On 30 Nov 2017, at 12:21 PM, vaclav_sal@... [PHSNA] wrote:
> > I am repackaging VNArduino VNA.
> > This is just an amateur project, not an attempt to reinvent the wheel.
> > I am using the original VNArduino as base - changing some hardware and controller / processor.
> > This is strictly a fun amateur project NOT intended to be mass for profit production.
> >
> > I welcome anybody who wants to participate.
>
> I'm doing a similar project at the moment, and also wanted to
> use the AD8302... until I decided that I didn't.
>
> The problem with the VNArduino is the very limited rejection of
> spurious signals of they AD8302, which picks up *everything*.
> If you want to analyse an antenna, you need a more selective
> front-end because you're often in a high-RF environment.
> The same problem exists with the PHSNA, of course.
>
> The current plan is a bit more sophisticated and *much* more
> capable. It uses a mixer and a dual-channel DDS (AD9959)
> that's good to 200MHz. The LPF after the mixer allows rejection
> of anything more than 10KHz away from the transmitted signal.
>
> There's another cunning aspect regarding phase detection that
> I won't go into here. It involves digitising the audio off the mixer.
>
> If you're interested in using the AD9959, I wrote a library for it:
> .
>
>
> In any case, I'd like to see your spec please.
>
>
> PS
> I did look at github and have to say I am impress with readme.
> It actually contains useful info instead of usual copies of "open source" legals.
>
>
> Clifford Heath.
>
> > At preset I am collecting necessary hardware and laying out PCB.
> > I envision to have ability to use any suitable controller / processor and associated hardware.
> > I have written short specification to keep the project from wondering of the track.
> > If anybody is interested I can share the spec, but NOT in public.
> >
> > Vaclav
> >
> > 73 AA7EJ
> >
> >
>
>
>
>


Re: VNArduino project

DuWayne Schmidlkofer
 

Here is another 1 port VNA you might be interested in

https://bitbucket.org/kuchura/eu1ky_aa_v3/wiki/Home

DuWayne KV4QB



On 11/30/2017 12:27 AM, Vaclav vaclav_sal@... [PHSNA] wrote:
 
Clifford thanks,
I'll take a closer look at the datasheet...
As far as using AD8302 module - this is my fist real SMT project and I decided 
NOT to solder SMT IC's especially  when someone already done that.

But you make a good point - there are few copies of the original design with not much circuit description.
Most of the "description " is how wonderfully  it works in different "mode" and with cool display(s) - CD, TFT etc.
.
PS
Just a note - I dropped the "Arduino"  - I have "just " HF VNA.
I used VNArduino in my post becuse that is whan is "on the market".
And for other reasons...

Vaclav

On Wednesday, November 29, 2017, 9:51:09 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:


 

Vaclav,

Read the data sheet for the AD8302. The module just puts it on a board.

There are two independent multi-stage log detectors, and a mixer that
multiplies the two signals. The phase detection relies on the two signals
being close in amplitude (within 30dB, which limits the depth of a null
you can detect). There is no filtering at all, so whatever comes out of
the mixer gets detected as phase, even if the two signals are on
completely different frequencies. Same deal with the relative amplitude;
it's only *relative* amplitude of the transmitted vs *all* received signals.

It was designed to recover a video signal from a clean filtered IF.
I.e. it works ok if you have clean signals and no interference. When
probing an antenna, that pretty often just isn't the case; especially
up on a roof where other antennae are transmitting. A real VNA is
immune to off-channel interference.

Clifford Heath.

> On 30 Nov 2017, at 2:40 PM, Vaclav vaclav_sal@... [PHSNA] wrote:
>
>
> I have not really look at the schematic / concept details of VNArduino.
> The AD8302 module is coming without much doc ( as expected from e-bay) , but from the looks of it the output has some componets , perhaps filter? I will do some "reverse enginnering " when the module arrives.
>
> I am in hardware stage and as much as I appreciate your comments I'll use AD8302 alone for now.
> I need to clean up my spec , I keep a log of "progress" and it is getting little cluttered.
> Give me couple of days.
>
>
>
> On Wednesday, November 29, 2017, 7:49:38 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:
>
>
>
> On 30 Nov 2017, at 12:21 PM, vaclav_sal@... [PHSNA] wrote:
> > I am repackaging VNArduino VNA.
> > This is just an amateur project, not an attempt to reinvent the wheel.
> > I am using the original VNArduino as base - changing some hardware and controller / processor.
> > This is strictly a fun amateur project NOT intended to be mass for profit production.
> >
> > I welcome anybody who wants to participate.
>
> I'm doing a similar project at the moment, and also wanted to
> use the AD8302... until I decided that I didn't.
>
> The problem with the VNArduino is the very limited rejection of
> spurious signals of they AD8302, which picks up *everything*.
> If you want to analyse an antenna, you need a more selective
> front-end because you're often in a high-RF environment.
> The same problem exists with the PHSNA, of course.
>
> The current plan is a bit more sophisticated and *much* more
> capable. It uses a mixer and a dual-channel DDS (AD9959)
> that's good to 200MHz. The LPF after the mixer allows rejection
> of anything more than 10KHz away from the transmitted signal.
>
> There's another cunning aspect regarding phase detection that
> I won't go into here. It involves digitising the audio off the mixer.
>
> If you're interested in using the AD9959, I wrote a library for it:
> .
>
>
> In any case, I'd like to see your spec please.
>
>
> PS
> I did look at github and have to say I am impress with readme.
> It actually contains useful info instead of usual copies of "open source" legals.
>
>
> Clifford Heath.
>
> > At preset I am collecting necessary hardware and laying out PCB.
> > I envision to have ability to use any suitable controller / processor and associated hardware.
> > I have written short specification to keep the project from wondering of the track.
> > If anybody is interested I can share the spec, but NOT in public.
> >
> > Vaclav
> >
> > 73 AA7EJ
> >
> >
>
>
>
>


Re: VNArduino project

Vaclav <vaclav_sal@...>
 

Clifford thanks,
I'll take a closer look at the datasheet...
As far as using AD8302 module - this is my fist real SMT project and I decided 
NOT to solder SMT IC's especially  when someone already done that.

But you make a good point - there are few copies of the original design with not much circuit description.
Most of the "description " is how wonderfully  it works in different "mode" and with cool display(s) - CD, TFT etc.
.
PS
Just a note - I dropped the "Arduino"  - I have "just " HF VNA.
I used VNArduino in my post becuse that is whan is "on the market".
And for other reasons...

Vaclav

On Wednesday, November 29, 2017, 9:51:09 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:


 

Vaclav,

Read the data sheet for the AD8302. The module just puts it on a board.

There are two independent multi-stage log detectors, and a mixer that
multiplies the two signals. The phase detection relies on the two signals
being close in amplitude (within 30dB, which limits the depth of a null
you can detect). There is no filtering at all, so whatever comes out of
the mixer gets detected as phase, even if the two signals are on
completely different frequencies. Same deal with the relative amplitude;
it's only *relative* amplitude of the transmitted vs *all* received signals.

It was designed to recover a video signal from a clean filtered IF.
I.e. it works ok if you have clean signals and no interference. When
probing an antenna, that pretty often just isn't the case; especially
up on a roof where other antennae are transmitting. A real VNA is
immune to off-channel interference.

Clifford Heath.

> On 30 Nov 2017, at 2:40 PM, Vaclav vaclav_sal@... [PHSNA] wrote:
>
>
> I have not really look at the schematic / concept details of VNArduino.
> The AD8302 module is coming without much doc ( as expected from e-bay) , but from the looks of it the output has some componets , perhaps filter? I will do some "reverse enginnering " when the module arrives.
>
> I am in hardware stage and as much as I appreciate your comments I'll use AD8302 alone for now.
> I need to clean up my spec , I keep a log of "progress" and it is getting little cluttered.
> Give me couple of days.
>
>
>
> On Wednesday, November 29, 2017, 7:49:38 PM CST, Clifford Heath clifford.heath@... [PHSNA] wrote:
>
>
>
> On 30 Nov 2017, at 12:21 PM, vaclav_sal@... [PHSNA] wrote:
> > I am repackaging VNArduino VNA.
> > This is just an amateur project, not an attempt to reinvent the wheel.
> > I am using the original VNArduino as base - changing some hardware and controller / processor.
> > This is strictly a fun amateur project NOT intended to be mass for profit production.
> >
> > I welcome anybody who wants to participate.
>
> I'm doing a similar project at the moment, and also wanted to
> use the AD8302... until I decided that I didn't.
>
> The problem with the VNArduino is the very limited rejection of
> spurious signals of they AD8302, which picks up *everything*.
> If you want to analyse an antenna, you need a more selective
> front-end because you're often in a high-RF environment.
> The same problem exists with the PHSNA, of course.
>
> The current plan is a bit more sophisticated and *much* more
> capable. It uses a mixer and a dual-channel DDS (AD9959)
> that's good to 200MHz. The LPF after the mixer allows rejection
> of anything more than 10KHz away from the transmitted signal.
>
> There's another cunning aspect regarding phase detection that
> I won't go into here. It involves digitising the audio off the mixer.
>
> If you're interested in using the AD9959, I wrote a library for it:
> .
>
>
> In any case, I'd like to see your spec please.
>
>
> PS
> I did look at github and have to say I am impress with readme.
> It actually contains useful info instead of usual copies of "open source" legals.
>
>
> Clifford Heath.
>
> > At preset I am collecting necessary hardware and laying out PCB.
> > I envision to have ability to use any suitable controller / processor and associated hardware.
> > I have written short specification to keep the project from wondering of the track.
> > If anybody is interested I can share the spec, but NOT in public.
> >
> > Vaclav
> >
> > 73 AA7EJ
> >
> >
>
>
>
>

Re: AD9851 TYPE II

Vaclav <vaclav_sal@...>
 

Many thanks , just what the doctor ordered
73


On Wednesday, November 29, 2017, 10:23:54 PM CST, 'K5ESS' k5ess.nothdurft@... [PHSNA] wrote:


 

The board is 1.64 X 1.183 inches.  The single row of 7 pins is spaced 1.4 inches from the inside row of the dual 7 pin headers. 

Mike

K5ESS

 

From: PHSNA@... [mailto:PHSNA@...]
Sent: Wednesday, November 29, 2017 19:30
To: PHSNA@...
Subject: [PHSNA] AD9851 TYPE II

 

 

I am looking for HARDWARE data on AD9851 DDS module TYPE II
I am calling TYPE II the module with dual - 7 by 2 .1 pitch pin  header and SINGLE 7 pin .1 header .

I have  a sort of spec - schematic , picture  but NO dimensions

I am laying out PCB and would  like to be able to use both types of AD9851 modules.

The TYPE I is dual 10 by 8 .1 pitch header with .8 distance between the headers.

Help would be appreciated.

73 Vaclav AA7EJ