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Re: File /TinySA Ultra Menu-Tree Chart - DRAFT.pdf uploaded
#file-notice
¿ªÔÆÌåÓýIt gets better and better.? Keep it up. ? Kind Regards, Dave Dave Reiser, WA3TRS Phone: 301-216-5394 Mobile: 301-802-1929 Email:? davereiser@... 520 Russell Avenue, Gaithersburg, MD 20877 ? |
File /TinySA Ultra Menu-Tree Chart - DRAFT.pdf uploaded
#file-notice
Group Notification
The following files and folders have been uploaded to the Files area of the [email protected] group. By: David Massey <wd4owa@...> Description: |
Re: TinyPFA
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From: [email protected] <[email protected]> on behalf of Vladimir Lebedev <dl7pga@...>
Sent: Wednesday, January 11, 2023 10:03 AM To: [email protected] <[email protected]> Subject: Re: [tinysa] TinyPFA ?
Hello Dick!
tinyPFA Firmware is only for NanoVNA-H4 - not for H. 73, Vladimir, dl7pga |
Re: TinyPFA
¿ªÔÆÌåÓýLet 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
From: [email protected] <[email protected]> on behalf of Isidro Berniol <sidro.groups.io@...>
Sent: Wednesday, January 11, 2023 7:38 AM To: [email protected] <[email protected]> Subject: Re: [tinysa] TinyPFA ?
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:
|
Re: TinyPFA
¿ªÔÆÌåÓýThank 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:
|
Re: FM demodulation with tinySA Ultra
Hugo,
Only AM, but according to Erik's hint to use slope demodulation you can also listen to FM: /g/tinysa/topic/95601297#8496 Martin |
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. |
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? |