Whilst using the TinySA Ultra to take signal measurements yesterday, the device became unresponsive. I have power cycled the device and we have updated the firmware, with no improvement.
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The device starts and launches the FFT screen with the attenuation and frequency marker which can be moved with the toggle. However, the amplitude is not shown on the grid.
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If the toggle is pressed, the menu opens and the device becomes unresponsive.
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If the screen is touched, the device becomes unresponsive.
On Thu, Feb 6, 2025 at 23:35 Mike C. via <mg=[email protected]> wrote:
Just reading this now. If it isn't already gone, I'll give it a
go.
Mike C Sand Mtn GA
PS Paypud is OK for me.
On 2/5/2025 12:56 PM, Dave Daniel via
wrote:
Does anyone want a copy of the January/February
2025 issue of QEX? The ARRL sent me two copies. It has the
tinySA tracking generator design article in it.
Of so *respond to me privately* at
kc0wjn at gmail dot com
Responses to the list will be ignored.
The magazine is free; shipping cost from 32754 USA
to be paid to me by PayPal F&F (the shipping cost using USPS
Media Mail is probably trivial).
Does anyone want a copy of the January/February
2025 issue of QEX? The ARRL sent me two copies. It has the
tinySA tracking generator design article in it.
Of so *respond to me privately* at
kc0wjn at gmail dot com
Responses to the list will be ignored.
The magazine is free; shipping cost from 32754 USA
to be paid to me by PayPal F&F (the shipping cost using USPS
Media Mail is probably trivial).
Here in New Zealand DAB is dead, they did a trial then killed it.? Probably because streaming offered much of the same advantages without the need to invest in new hardware and little interest was shown by the public in DAB.? A shame but that is how it goes sometimes.
?
There are plenty of AM stations but I suspect FM users outstrip them by a magnitude or two.
?
The real driver of AM now is USA politics where it is being mandated for all new car because of the claim it what listeners are demanding.? While there is a notable market segment for AM listeners in the USA I suspect the truth of the demand may be misleading.
Re: TinySA - A use case in a professionnal field measurement context
Here’s another use case using the TinySA Ultra. This article describes how interference to a wireless gasoline station pricing sign was located. While most of the measurements were performed using a professional Tektronix spectrum analyzer, there were certain measurements taken clandestinely using the smaller analyzer.
The NRSC (National Radio System Committee) in the US landscape, has published a study examining the effects of RF noise on AM radio reception in cars.?
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See there :
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What is interesting is the fact that a TinySA is one part of the measurement system, as depicted below. It highlights once again that Erik's tools have also a place of choice in a professionnal field, congratulations !
?
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The complete study report is also available there :
He has realized what I wrote in the "pointed" (maybe demeaning?) email.? Have a read of my latest email as a beginning primer.? I can walk him through the learning curve, but it will take time on both our parts.? The learning curve will not be instant.? I've given him a good starting point.
He can learn the ins and outs of using the spectrum analyzer while learning his ambient RF environment at the same time.? In addition to the Rhode&Schwarz tutorial, I've also given him tutorials on the general use of the spectrum analyzer from both Agilent and Tektronix.? My last email to him also included nominal frequencies of what he is likely to detect in his local RF environment.? It's a good starter exercise in both respects.?? ??
You can't "buy" knowledge and skills to function in any field.? Even the trades require a bit of time and investment on one's own part and the part of a dedicated mentor.?
On Wed, Feb 5, 2025 at 4:14?AM Bill Blodgett via <whb5k=[email protected]> wrote:
Not rude Zack, but certainly demeaning.? Some may have missed a couple of days in ”Mr. Lynn’s Finishing School”. ?
73,
Bill?
AI5RP
++++++++++++++++
Bill Blodgett
Arlington, Texas
On Feb 4, 2025, at 12:06?PM, Zack Widup via <w9sz.zack=[email protected]> wrote:
?
I'm not sure what you're referring to? You didn't quote any text and I haven't seen any replies that were particularly rude.
Zack W9SZ
On Tue, Feb 4, 2025 at 11:19?AM GeoffersB via <geoffrey=[email protected]> wrote:
It always distresses me when people who are obviously very clever and experienced refuse to afford the politeness and assistance that they were no doubt offered when they were beginning in a field. You don't have to be rude in order to prove your superior intelligence. But there, clearly I expect too much of humanity. AI will not doubt do better.
On Wed, Feb 5, 2025 at 12:56 Dave Daniel via <kc0wjn=[email protected]> wrote:
Does anyone want a copy of the January/February 2025 issue of QEX? The ARRL
sent me two copies. It has the tinySA tracking generator design article in
it.
Of so *respond to me privately* at
kc0wjn at gmail dot com
Responses to the list will be ignored.
The magazine is free; shipping cost from 32754 USA to be paid to me by
PayPal F&F (the shipping cost using USPS Media Mail is probably trivial).
Does anyone want a copy of the January/February 2025 issue of QEX? The ARRL sent me two copies. It has the tinySA tracking generator design article in it.
Of so *respond to me privately* at
kc0wjn at gmail dot com
Responses to the list will be ignored.
The magazine is free; shipping cost from 32754 USA to be paid to me by PayPal F&F (the shipping cost using USPS Media Mail is probably trivial).
2)? Radiated Emissions:? 30 MHz through the fifth harmonic of the highest clock frequency or 40 GHz (FCC).
When doing conducted emissions, you will need a LISN (Line Isolation and Stabilization Network) and/or a calibrated current probe.?
CAUTION (Conducted Emissions):? Connect your SA (Spectrum Analyzer) ONLY after the DUT is connected and ON.? If you turn the DUT ON while the SA is connected to the current probe and/or the LISN, you stand an excellent chance of blowing the front end of the SA.? It's best to use a transient suppressor/limiter like the MiniCircuits VLM-33W-2W-S+.? A bit of advice from an old fossil in the field:? Leave the limiter connected to the input of your SA permanently.
On Wed, Feb 5, 2025 at 4:35?PM David Eckhardt <davearea51a@...> wrote:
Yes, the Rhode&Schwarz videos on spectrum analyzers are highly recommended.? That would be an excellent first step as you first need to know how to use your new instrument.?
Here is another from Aglient (ex-HP):
????
And another from Tektronix with an expanded tutorial at the end:
????
While you are learning the basics of the spectrum analyzer and maybe a few other instruments associated with it there are additional local environment associated parameters you need to become familiar with.? Since you do not have a semi-anechoic chamber (lots of $$$$$$), you will need to become familiar with your RF ambient environment.? To do a good job of pre-compliance you need to become familiar with all the RF sources in your area:? WiFi, home solar installations, AM broadcasters, FM broadcasters, TV broadcasters, public services, cell phone towers (be sure yours is OFF while testing), baby monitors, wall warts, appliances, switch mode power supplies (these will be embedded in appliances), ..... ,,,,, ..... what have I missed.? When evaluating a product for emissions, all these and some I've forgotten will be eliminated as radiating from the DUT (Device Under Test).?
Here is a starter on what to look for regarding ambients:
AM Broadcast:? 550 to 1700 kHz? (applies only to conducted emissions)
FM Broadcast:? 88 through 108 MHz
WiFi:? 2.4 ± and 1.85 ± GHz
Home Solar Installations:? Broadband unstable emissions:? LF through possibly VHF
TV Broadcasters:? 54 through 225 MHz and 470 through 700 MHz in 6 MHz "chunks"
Public Service:? 150 through 174 MHz and 700 through 800 MHz
Cell Phone (personal and towers):? 850 ± MHz and 1.9 ± GHz
Baby Monitors:? VHF and UHF
Wall Warts:? These are switch mode power supplies:? 20 kHz through 80 MHz - broadband and
? ? ? ? ? ? ? ? ? ? ? unstable
Appliances:? Similar to "Wall Warts:
GMRS and FRS:? 462.5 through 468 MHz (this is FM)
Amateur Radio:? Consult the following URL: ?
Citizen Band:? 27 ± MHz?
Anything I've forgotten:? 20 kHz through xxx GHz
Some of these are "ON" 24/7/365 and others are intermittent.? For those which are intermittent, it's good to use the "MAX HOLD" function on the spectrum analyzer.?
That should get you going.
Dave - W?LEV
?'r et ve
Virus-free.
On Wed, Feb 5, 2025 at 6:51?AM larmstead24 via <larmstead24=[email protected]> wrote:
I apologize in advance if this is a dumb question but I need guidance.? I have a Tinysa spectrum analyzer but I am completely new to radio frequencies and the spectrum world but NEED to learn as soon as possible.? All the book search results I have found so far seem advanced because I am not even familiar with the terminology.? Can anyone tell me where to start? I am not a techie.? Any beginner’s resource for dummies will help. ?
?
Also, are there people/consultants out there who you can pay to advise you on how to set your spectrum analyzer based on what you are trying to capture and who will interpret the results for you? If so, what are they called (so I can search the web), and/or where can I find a reputableone?
Yes, the Rhode&Schwarz videos on spectrum analyzers are highly recommended.? That would be an excellent first step as you first need to know how to use your new instrument.?
Here is another from Aglient (ex-HP):
????
And another from Tektronix with an expanded tutorial at the end:
????
While you are learning the basics of the spectrum analyzer and maybe a few other instruments associated with it there are additional local environment associated parameters you need to become familiar with.? Since you do not have a semi-anechoic chamber (lots of $$$$$$), you will need to become familiar with your RF ambient environment.? To do a good job of pre-compliance you need to become familiar with all the RF sources in your area:? WiFi, home solar installations, AM broadcasters, FM broadcasters, TV broadcasters, public services, cell phone towers (be sure yours is OFF while testing), baby monitors, wall warts, appliances, switch mode power supplies (these will be embedded in appliances), ..... ,,,,, ..... what have I missed.? When evaluating a product for emissions, all these and some I've forgotten will be eliminated as radiating from the DUT (Device Under Test).?
Here is a starter on what to look for regarding ambients:
AM Broadcast:? 550 to 1700 kHz? (applies only to conducted emissions)
FM Broadcast:? 88 through 108 MHz
WiFi:? 2.4 ± and 1.85 ± GHz
Home Solar Installations:? Broadband unstable emissions:? LF through possibly VHF
TV Broadcasters:? 54 through 225 MHz and 470 through 700 MHz in 6 MHz "chunks"
Public Service:? 150 through 174 MHz and 700 through 800 MHz
Cell Phone (personal and towers):? 850 ± MHz and 1.9 ± GHz
Baby Monitors:? VHF and UHF
Wall Warts:? These are switch mode power supplies:? 20 kHz through 80 MHz - broadband and
? ? ? ? ? ? ? ? ? ? ? unstable
Appliances:? Similar to "Wall Warts:
GMRS and FRS:? 462.5 through 468 MHz (this is FM)
Amateur Radio:? Consult the following URL: ?
Citizen Band:? 27 ± MHz?
Anything I've forgotten:? 20 kHz through xxx GHz
Some of these are "ON" 24/7/365 and others are intermittent.? For those which are intermittent, it's good to use the "MAX HOLD" function on the spectrum analyzer.?
On Wed, Feb 5, 2025 at 6:51?AM larmstead24 via <larmstead24=[email protected]> wrote:
I apologize in advance if this is a dumb question but I need guidance.? I have a Tinysa spectrum analyzer but I am completely new to radio frequencies and the spectrum world but NEED to learn as soon as possible.? All the book search results I have found so far seem advanced because I am not even familiar with the terminology.? Can anyone tell me where to start? I am not a techie.? Any beginner’s resource for dummies will help. ?
?
Also, are there people/consultants out there who you can pay to advise you on how to set your spectrum analyzer based on what you are trying to capture and who will interpret the results for you? If so, what are they called (so I can search the web), and/or where can I find a reputableone?