Gene Nitschke

开云体育

OK while waiting for the Pixie, I finally got the USB port working again (bad USB cable, go figure!).??

So, I started trying different versions of SW to see if I could isolate?the volume issue (increasing significantly after about 7.200 Birdie).? ? Issue is?not there in version 1.04 but present in 1.05!? This is when the VFO drive current was changed to try and eliminate the Birdie!? Going back to 1.27.1 and changing the VFO driver current to 2, 6, or 8 mA eliminates the volume change but makes the overall volume lower,?the birdie is just as strong no matter where I set the current (I verified I was using?Etherkit Si5351 2.0.1).? Maybe I will try the RG174 from VFO to board (as I have lots of that).? ?As the original current was 2mA, I will probably set this unit at that level for now.???I would like to leave this one mainly stock?and start the build on the second unit to hack.

While?reading some of the old?threads on the Birdie, I see mention of a "factory reset".? I assume this is the Raduino?? ? Why would you do this and what would?it accomplish?

Gene N2IJF

Show quoted text

From: [email protected] <[email protected]> on behalf of Jerry Gaffke via Groups.Io <jgaffke@...>
Sent: Tuesday, November 21, 2017 1:19 AM
To: [email protected]
Subject: Re: [BITX20] Is my BitX output stable?

?

Yup.
Second to the last slide of your document shows the "Chinese Rendition", including the 7.023mhz crystal.
As low as $1.98 on ebay in that link I gave, most are way up there around $3 or so.
And you thought $59 was cheap.

On Mon, Nov 20, 2017 at 09:28 pm, Thomas Sharka wrote:

w1sye.org

Oscillator Frequency Control Filter The filter elements can be fixed or adjustable. A quartz crystal is ideal as a fixed element. ? Good frequency stability

This Pixie?

Gene Nitschke

#34813

开云体育

Just reread my message and before anyone finds my error, I meant to say with versions 1.04 and 1.05 I ensured I was using??Etherkit Si5351 2.0.1.? This is not needed in V 1.27.1.

Gene N2IJF

Show quoted text

From: [email protected] <[email protected]> on behalf of Gene Nitschke <genenitschke@...>
Sent: Wednesday, November 22, 2017 8:32 PM
To: [email protected]
Subject: Re: [BITX20] Is my BitX output stable? (Volume change above 7.200)

?

OK while waiting for the Pixie, I finally got the USB port working again (bad USB cable, go figure!).??

So, I started trying different versions of SW to see if I could isolate?the volume issue (increasing significantly after about 7.200 Birdie).? ? Issue is?not there in version 1.04 but present in 1.05!? This is when the VFO drive current was changed to try and eliminate the Birdie!? Going back to 1.27.1 and changing the VFO driver current to 2, 6, or 8 mA eliminates the volume change but makes the overall volume lower,?the birdie is just as strong no matter where I set the current (I verified I was using?Etherkit Si5351 2.0.1).? Maybe I will try the RG174 from VFO to board (as I have lots of that).? ?As the original current was 2mA, I will probably set this unit at that level for now.???I would like to leave this one mainly stock?and start the build on the second unit to hack.

While?reading some of the old?threads on the Birdie, I see mention of a "factory reset".? I assume this is the Raduino?? ? Why would you do this and what would?it accomplish?

Gene N2IJF

From: [email protected] <[email protected]> on behalf of Jerry Gaffke via Groups.Io <jgaffke@...>
Sent: Tuesday, November 21, 2017 1:19 AM
To: [email protected]
Subject: Re: [BITX20] Is my BitX output stable?

?

Yup.
Second to the last slide of your document shows the "Chinese Rendition", including the 7.023mhz crystal.
As low as $1.98 on ebay in that link I gave, most are way up there around $3 or so.
And you thought $59 was cheap.

On Mon, Nov 20, 2017 at 09:28 pm, Thomas Sharka wrote:

w1sye.org

Oscillator Frequency Control Filter The filter elements can be fixed or adjustable. A quartz crystal is ideal as a fixed element. ? Good frequency stability

This Pixie?

#34814

Some of the USB cables are only meant for charging,
they don't support data transfer.17

Yes, si5351 drive current can make a difference in how well the signal is received.
But weird it is so different across just the 40m ham band.

Not really sure what firmware version this "factory reset" was getting used on,
but when using Farhan's original Raduino sketch (what comes in the unit when shipped from hfsigs)
the only value stored in EEPROM is the frequency calibration constant.?

Farhan's code leaves the `si5351 drive strength at its default level.
I believe the default drive strength for the etherkit library is 2 mA.?

Jerry, KE7ER
?

Show quoted text

On Wed, Nov 22, 2017 at 05:32 pm, Gene Nitschke wrote:

OK while waiting for the Pixie, I finally got the USB port working again (bad USB cable, go figure!).??

?

So, I started trying different versions of SW to see if I could isolate?the volume issue (increasing significantly after about 7.200 Birdie).? ? Issue is?not there in version 1.04 but present in 1.05!? This is when the VFO drive current was changed to try and eliminate the Birdie!? Going back to 1.27.1 and changing the VFO driver current to 2, 6, or 8 mA eliminates the volume change but makes the overall volume lower,?the birdie is just as strong no matter where I set the current (I verified I was using?Etherkit Si5351 2.0.1).? Maybe I will try the RG174 from VFO to board (as I have lots of that).? ?As the original current was 2mA, I will probably set this unit at that level for now.???I would like to leave this one mainly stock?and start the build on the second unit to hack.

?
While?reading some of the old?threads on the Birdie, I see mention of a "factory reset".? I assume this is the Raduino?? ? Why would you do this and what would?it accomplish?

?

Gene N2IJF