Hello Dick!
tinyPFA Firmware is only for NanoVNA-H4 - not for H.
73, Vladimir, dl7pga
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On Wed, Jan 11, 2023 at 08:39 AM, Dick wrote:
If so, what is that procedure ?
Dick, Have a look here:? All support questions please here:?https://tinydevices.org/forum/viewforum.php?f=4 ? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Let me see if I got this right ....
The PFA Software gets loaded into the NanoVNA-H.
Can the NanoVNA-H still be used as a VNA or must
the PFA Software be somehow disabled or removed ??
If so, what is that procedure ?
Thanks for the enlightenment,
73, Dick, W1KSZ
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Thank you for posting this question in this group.
Wasn't aware of this little thing.
It is exactly what I miss in my test lab for RF measurement equipment.
So I ordered such a H4 variant immediately by eleshop.nl (I only owned two NANOVNA-F). It arrived today and after a short basic function test I loaded the PFA firmware.
What a great tool!
Thank you so much Erik for this code!
Now I can analyze the behavior of my rubidium oscs, GPSDOs and oven oscs. After isolating the good ones I can then analyze the jitter of the reference oscs in my SAs, VNA and my Marconi 2955. A long wished step to make my lab better :-)
I am so happy to have this hardly missed piece of equipment! In the past I used a mixer with a sound card on the IF port and a combination of scope and XY display to measure phase noise and drift. But this is much better. :-)
Thank you,
Isidro
Am 08.01.2023 um 23:13 schrieb George Dukish via groups.io:
I AGREE........on the thought. Anything that can help us all out here, when it come to full utilization of the TinySA, is not 'OFF Topic'................
On Sunday, January 8, 2023, 09:18:49 AM CST, Ed Wilson via groups.io
<ed.wilson@...> wrote:
I apologize for a bit of an off-topic post, but I viewed a YouTube video last night by Erik demonstrating the TinyPFA. I searched the Groups.io site, but did not see a group devoted to this topic/device.
From what I was able to glean from the video, the TinyPFA requires a NanoVNA-H4 and (free) firmware developed by Eric. I do not currently have a NanoVNA-H4, but do have NanoVNA SAA-2N. I was wondering if this firmware would be compatible with my current NanoVNA
or if I would need to acquire a NanoVNA-H4?
I would like to see a group formed so that I can learn more about the TinyPFA and determine if I could find any applications for the device.
Again, sorry for the off-topic post.
--
--
George Dukish
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Thank you for posting this question in this group.
Wasn't aware of this little thing.
It is exactly what I miss in my test lab for RF measurement
equipment.
So I ordered such a H4 variant immediately by eleshop.nl (I only
owned two NANOVNA-F). It arrived today and after a short basic
function test I loaded the PFA firmware.
What a great tool!
Thank you so much Erik for this code!
Now I can analyze the behavior of my rubidium oscs, GPSDOs and
oven oscs. After isolating the good ones I can then analyze the
jitter of the reference oscs in my SAs, VNA and my Marconi 2955. A
long wished step to make my lab better :-)
I am so happy to have this hardly missed piece of equipment! In
the past I used a mixer with a sound card on the IF port and a
combination of scope and XY display to measure phase noise and
drift. But this is much better. :-)
Thank you,
Isidro
Am 08.01.2023 um 23:13 schrieb George
Dukish via groups.io:
toggle quoted message
Show quoted text
I AGREE........on the thought. Anything that can help us all
out here, when it come to full utilization of the TinySA, is not
'OFF Topic'................
On Sunday, January 8, 2023, 09:18:49 AM CST, Ed Wilson
via groups.io <ed.wilson@...> wrote:
I apologize for a bit of an
off-topic post, but I viewed a YouTube video last night by
Erik demonstrating the TinyPFA. I searched the Groups.io
site, but did not see a group devoted to this
topic/device.
From what I was able to glean from the video, the TinyPFA
requires a NanoVNA-H4 and (free) firmware developed by
Eric. I do not currently have a NanoVNA-H4, but do have
NanoVNA SAA-2N. I was wondering if this firmware would be
compatible with my current NanoVNA or if I would need to
acquire a NanoVNA-H4?
I would like to see a group formed so that I can learn
more about the TinyPFA and determine if I could find any
applications for the device.
Again, sorry for the off-topic post.
--
--
George Dukish
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Re: FM demodulation with tinySA Ultra
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FM demodulation with tinySA Ultra
Does the tinySA Ultra also only implement AM demodulation? Does any one here have success using slope demodulation for the FM-band 88MHz to 108MHz), if so which settings worked?
kind regards Hugo
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Re: Correcting generator level error above 1 GHz
Yes, using the "correction" command via serial over USB you can fully correct all frequency dependent input or output levels
You can experiment with the command but I still need to write good documentation on how to use this correction command
--
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: Correcting generator level error above 1 GHz
Yes, I see, the spurious are higher than the output frequency and the power meter reads the level sum,
so will use a Ytf (Yig tuned filter) preselector to avoid this.
Anyway, using a calibrated spectrum analyzer with direct connection sma-sma there are? level errors.
Reference from 3 to 4 GHz -30dBm no errors(0dB),? from 4.5 GHz? to 5.4 GHz? are -2dB.
Tinysa is a very good test instrument ,? I ask if may be improved this frequency flatness by software.
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Re: Correcting generator level error above 1 GHz
How do you measure the power? Using a broadband power meter? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: TinySA Ultra - Hardware version "unknown"
Let me investigate why this happens. --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: Correcting generator level error above 1 GHz
FW 1.4028
mode highest accuracy
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Re: TinySA Ultra - Hardware version "unknown"
After powering off and on the HW version is "V0.4.5.1 (169)"
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Klaus, DL5KV
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Re: TinySA Ultra - Hardware version "unknown"
Today I updated the firmware. After powering on and reloaded the calibration data the HW version is shown as unknown (168)
--
Klaus, DL5KV
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Re: Calibration Issues on my new TinySA
Ok Erik,
I have contacted the seller on eBay?
I will see what they say about returns.
thanks for your assistance.
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Re: Correcting generator level error above 1 GHz
What output mode where you using? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: Correcting generator level error above 1 GHz
What FW are you using? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Correcting generator level error above 1 GHz
Hello Erik
The level error of the output generator is +3dB at 1.5GHz, +6.5 dB at 4 GHz, +8dB at 5GHz. No error? reference is output level -30dBm at 3 GHz.
Is it possible to correct the flatness(10 points from 1 to 5.4 GHz)with a software update or by usb serial command?
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Re: TinySA ULTRA LEVEL CAL -> Signal Level incorrect
#ultra
Erik-san ? Thank you for taking a look at the caliblation results. I will replace the parts for U14 BGA2817 as advised. It will take some time for the parts to arrive so I will work on it next week. ? Thanks. Masahiro Kusunoki/JP3SRS ?
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From: [email protected] <[email protected]> On Behalf Of Erik Kaashoek
Sent: Tuesday, January 10, 2023 7:42 PM
To: [email protected]
Subject: Re: [tinysa] TinySA ULTRA LEVEL CAL -> Signal Level incorrect #ultra? The calibration did partially complete, the LNA level calibration seems to have failed.
And selftest 13 fails, this is the LNA test.
It seems the LNA is not working correctly
The reason the older FW did not show this error is because the check of the signal level during LNA calibration was only introduced in newer FW version.
You can try yo replace the LNA, this has previously been done by someone so it seems to be possible.
The LNA is U14 and it is a?BGA2817, available from many suppliers for acceptable price.
Or you can contact the supplier for replacement.
-- For more info on the tinySA go to
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Re: TinySA ULTRA LEVEL CAL -> Signal Level incorrect
#ultra
The calibration did partially complete, the LNA level calibration seems to have failed. And selftest 13 fails, this is the LNA test. It seems the LNA is not working correctly The reason the older FW did not show this error is because the check of the signal level during LNA calibration was only introduced in newer FW version. You can try yo replace the LNA, this has previously been done by someone so it seems to be possible. The LNA is U14 and it is a?BGA2817, available from many suppliers for acceptable price. Or you can contact the supplier for replacement. --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: My tinySA Ultra Signal level Critical
#ultra
Thanks,Erik Kaashoek.? I already ordered.
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Vladimir Lebedev
Dick
Ho-Ro
Masahiro Kusunoki
