Re: TinySA or ULTRA Antennas
Keep on 'splaining Dave. I enjoy reading them, On Thu, 10 Oct 2024 19:03:27 +0000 "W0LEV via groups.io" <davearea51a@...> wrote: I'll stick with my "longer"
explanations in an effort to help others in expanding their knowledge. -- 73 -Jim NU0C
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Any old stereo earbuds or headset can be plugged in directly.
Do NOT use mono phones as these will short the output
The cheaper the headset, the better it may work as the cheap versions often have a high impedance which better matches the tinySA output.
--
Designer of the tinySA
For more info go to
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TRSS.
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As used in modern PC equipment, so any cheap headset will do.
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Or cellphone mics / headphones , often supplied with the handset will do.
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The one I threw in my Tiny SA Ultra box came from a 10 yr old cellphone.
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Plenty of splitter cables about on ebay etc for a few bucks,and convert the TRSS
style socket output to a two way leaded connection so that you can plug in
normal mono/stereo phones / earbuds to them.
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73 de Andy
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Re: Just to let you all know how happy I'm with my TinySA Ultra.
John,
I would appreciate any (all) info - details about the adjustable
load? box & tap.
THANKS!? Remain well & be SAFE!?
Robin
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On 10/10/2024 3:34 PM, John AE5X wrote:
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I used my Ultra just this morning to measure the 3rd order
IMD of my KX2. I used to have a DSA-815TG as well and don't miss
it a bit.
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--
John AE5X
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Re: Just to let you all know how happy I'm with my TinySA Ultra.
It's an amazing device. I do a lot of work at microwave frequencies. It's invaluable to use to tune pipe cap filters up to 12 GHz. It's very easy to tune them to a wrong multiple of the input frequency in a frequency multiplier circuit.. With the TinySA Ultra, I can be sure I tuned to the correct harmonic.
Zack W9SZ
I used my Ultra just this morning to measure the 3rd order IMD of my KX2. I used to have a DSA-815TG as well and don't miss it a bit.
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--
John AE5X
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Re: Just to let you all know how happy I'm with my TinySA Ultra.
I used my Ultra just this morning to measure the 3rd order IMD of my KX2. I used to have a DSA-815TG as well and don't miss it a bit.
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--
John AE5X
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Re: TinySA or ULTRA Antennas
Well said Dave.
73 de Paul VA6PW
On 10/10/2024 13:03, W0LEV wrote:
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Eric,
I have just been "criticised" (yes, this afternoon) on another
group for long posts due to EXPLAINING the reason(s) behind my
answer(s).? Just supplying the answer teaches nothing.? The
reason behind the answer teaches a bit of engineering and
possibly physics.? I'll stick with my "longer" explanations in
an effort to help others in expanding their knowledge.? Just
me.........
Dave
- W?LEV?
Dave,
It would help if you focus on helping and base your
replies on a positive understanding of the question.
?
Suggestions and discussions about a good antenna for a
specific application is welcome in this group.
But please do not stear the discussion away from tinySA
related contant
?
If you think someone is making a wrong statement it would
be appreciated if you ask clarification questions, just in
case you misunderstood something
--
Designer of the tinySA
For more info go to
--
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Re: TinySA or ULTRA Antennas
Whoops! I should have said "1/32 wave length" as my reference to
2.4GHz.? In that case it would equal 125mm, nice catch. :0)
Mike C. Sand Mtn GA
On 10/10/2024 12:16 PM, W0LEV wrote:
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QUOTE
(Mike):? What does the signal of a 1/32 wave look like on our
TinySA or Ultra at 2.4GHz?
What
is meant by "a 1/32 wave"?? 1/32 of 2.8 GHz would be 87.5
MHz.? To what are you referring?
Dave
- W?LEV ?
Hi
Group,
I agree with the suggestion to get away from the 'ham' topics,
however,
RF antennas from all aspects of transmitting or receiving will
play a
part in both disciplines. That said, shouldn't we discuss what
we find
with various antenna designs, both pro and con? The only
suggestion
would be to only talk about what works and what may not and in
that
light stay away from+0J-,* math. We can leave the math for our
handy
dandy VNA.
Example: What does the signal of a 1/32 wave look like on our
TinySA or
Ultra at 2.4GHz?
Mike C. Sand Mtn GA
--
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Re: TinySA or ULTRA Antennas
Eric, I have just been "criticised" (yes, this afternoon) on another group for long posts due to EXPLAINING the reason(s) behind my answer(s).? Just supplying the answer teaches nothing.? The reason behind the answer teaches a bit of engineering and possibly physics.? I'll stick with my "longer" explanations in an effort to help others in expanding their knowledge.? Just me.........
Dave - W?LEV?
Dave,
It would help if you focus on helping and base your replies on a positive understanding of the question.
?
Suggestions and discussions about a good antenna for a specific application is welcome in this group.
But please do not stear the discussion away from tinySA related contant
?
If you think someone is making a wrong statement it would be appreciated if you ask clarification questions, just in case you misunderstood something
--
Designer of the tinySA
For more info go to
|
Re: TinySA or ULTRA Antennas
Dave,
It would help if you focus on helping and base your replies on a positive understanding of the question.
?
Suggestions and discussions about a good antenna for a specific application is welcome in this group.
But please do not stear the discussion away from tinySA related contant
?
If you think someone is making a wrong statement it would be appreciated if you ask clarification questions, just in case you misunderstood something
--
Designer of the tinySA
For more info go to
|
Re: TinySA or ULTRA Antennas
QUOTE (Mike):?
What does the signal of a 1/32 wave look like on our TinySA or Ultra at 2.4GHz?
What is meant by "a 1/32 wave"?? 1/32 of 2.8 GHz would be 87.5 MHz.? To what are you referring?
Dave - W?LEV ?
Hi Group,
I agree with the suggestion to get away from the 'ham' topics, however,
RF antennas from all aspects of transmitting or receiving will play a
part in both disciplines. That said, shouldn't we discuss what we find
with various antenna designs, both pro and con? The only suggestion
would be to only talk about what works and what may not and in that
light stay away from+0J-,* math. We can leave the math for our handy
dandy VNA.
Example: What does the signal of a 1/32 wave look like on our TinySA or
Ultra at 2.4GHz?
Mike C. Sand Mtn GA
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Re: TinySA or ULTRA Antennas
But one can not properly address antenna impedance without considering both the real and complex portions of those impedance measurements made with the NanoVNA.? Without the ¡À jX term to the impedance, one may as well just use a standard SWR meter - a totally scalar measurement.? Further, without considering the ¡À j X term of the impedance, you're missing a whole bunch of the power of vector analysis.? And.....that would be the NANOVNA.? A little bit of math won't hurt anyone.? We're not speaking calculus or General Relativity, here!
Dave - W?LEV
Hi Group,
I agree with the suggestion to get away from the 'ham' topics, however,
RF antennas from all aspects of transmitting or receiving will play a
part in both disciplines. That said, shouldn't we discuss what we find
with various antenna designs, both pro and con? The only suggestion
would be to only talk about what works and what may not and in that
light stay away from+0J-,* math. We can leave the math for our handy
dandy VNA.
Example: What does the signal of a 1/32 wave look like on our TinySA or
Ultra at 2.4GHz?
Mike C. Sand Mtn GA
|
Hi Group,
I agree with the suggestion to get away from the 'ham' topics, however, RF antennas from all aspects of transmitting or receiving will play a part in both disciplines. That said, shouldn't we discuss what we find with various antenna designs, both pro and con? The only suggestion would be to only talk about what works and what may not and in that light stay away from+0J-,* math. We can leave the math for our handy dandy VNA.
Example: What does the signal of a 1/32 wave look like on our TinySA or Ultra at 2.4GHz?
Mike C. Sand Mtn GA
|
Look at tinysa.org for the settings it is not as easy as just plugging in the headphones and expect audio.
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Just to let you all know how happy I'm with my TinySA Ultra.
Hello all, Yesterday i got a offer for RIGOL DSA815-TG (used 8 years old) for euro 675,00 (retail aprx euro 1300) So basically a good deal and before I got my TinySA Ultra (and NanoVNA/LiteVNA) it was on the top of my "I want that in my shack" list. The screen is bigger 8" vs 4", it has physical buttons for operating vs. touchscreen, build in tracking generator which the TinySAUltra doesn't etc,? But after comparing it with the specs for PhaseNoise and DNAL TinySAUlta
Phase noise at 30MHz and 10kHz offset ? ?-92dBc/Hz
Phase noise at 30MHz and 100kHz offset ? ?-108dBc/Hz
DNAL -153dBm/Hz (LNA Off) / -169dBm/Hz (LNA On) ?(DANL degrading in ultra mode 10dB above 2.5GHz, 25dB above 5.3GHz)
RIGOL DSA815
Phase noise 10kHz offset -80 dBc/Hz (frequency chart available in spec sheet)
Phase noise 100kHz offset -100 dBc/Hz ?
DANL -130 dBm (PA Off) / -150 dBm/Hz (PA On) 100KHz up to 1MHz.
DANL -135 dBm (PA Off) / -155 dBm/Hz (PA On) 1MHz up to 1.5GHz
I think I let it pass.? Imho the feature wise the TinySAUltra covers them all and even adds new features like the waterfall etc. missing on the DSA815-TG. And in combination with my LiteVNA the tracking generator is covert to.? So Erik, many thanks for designing these great tools and make them available to us for a reasonable price.? --
73 Lex PH2LB?
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Re: 5.8GHz wideband video signal measurements
Hi Toni,
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It seems that the tinySA just can capture the signal from the drone streaming videos to the remote control. Do you think the tinySA can capture the behavior of pressing some buttons from the remote control? From the video it seems that these signals are too low to be observed, right?
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Regards,?
Hai
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Requires a TRSS jack, the 4 way type to work reliably in my experience.
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73 de Andy
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So from my experience. The audio port can be picky on what jack you stick inside. And for some reason on my ultra, I cannot insert it all the way or the sound will not work. Just pull out the male slightly and it should work again. This was always the case with mine since day one. I am kind of tempted to solder and new audio port to see if it fixes the problem. Something tells me it's a problem with production considering I've seen videos with the jack inserted all the way and your having the same issue as I. It did not like my Bose headphones and did not like male headphones with microphones. Try to find cheap earbuds with 2 rings on the male jack.??
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Locked
Re: Measure frequencies down to 500khz with tinysa?
I agree. Topic closed
--
Designer of the tinySA
For more info go to
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Jim Shorney
Mike C.
John Cunliffe W7ZQ
Lex PH2LB