Nice job comparing two xcvrs side by side, thanks. I had the Index Labs xcvr several years ago, it was a great performer. The use of a step attenuator in conjunction with the Tiny SA Ultra was a great idea. 73's OM.
Good morning! Amazing informative and helpful video. I never thought the Ultra would be so accurate, up to 100dBm, to check a receiver sensitivity. I was on the market for a good generator, namely an HP, for hf receivers alignment, but you just answered my questions. Thank you so much for your time, efforts and dedication. 73!
You can eliminate the manual calculations by using a fixed external attenuator setting of 60dB and setting the EXTERNAL GAIN to -60dB. This would show on the tinySA the dBm level that goes into the radio causing less opportunities for errors.
Interesting test. I never thought about doing your test. I've tested for S9 just to see how the S meter is calibrated. I love my Ultra TinySA. It is so useful on so many levels. Great video. Barry, KU3X
Thanks for the video, i only use my TINY SA for 11m , 27mhz ssb cb restoration and tuning, this is answers my qustion whether it would be worth upgrading too. Are then any other advantages with the ULTRA for my HF endeavors? Much appreciated.
About the only other advantage would be the increased dynamic range in SA mode, ie you'd be able to see harmonics at a lower level than would be visible with the non-Ultra. But even with the non-Ultra, you'd see harmonics down to -60dB or so which is good enough.
You could have fed the audio out of the receiver to a DVM or something like a Simpson 260 to find your lowest signal and your results would be much more accurate.
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Nice job comparing two xcvrs side by side, thanks. I had the Index Labs xcvr several years ago, it was a great performer. The use of a step attenuator in conjunction with the Tiny SA Ultra was a great idea. 73's OM.
Good morning! Amazing informative and helpful video. I never thought the Ultra would be so accurate, up to 100dBm, to check a receiver sensitivity. I was on the market for a good generator, namely an HP, for hf receivers alignment, but you just answered my questions. Thank you so much for your time, efforts and dedication. 73!
You can eliminate the manual calculations by using a fixed external attenuator setting of 60dB and setting the EXTERNAL GAIN to -60dB. This would show on the tinySA the dBm level that goes into the radio causing less opportunities for errors.
Interesting test. I never thought about doing your test. I've tested for S9 just to see how the S meter is calibrated.
I love my Ultra TinySA. It is so useful on so many levels. Great video.
Barry, KU3X
Thanks for the video, i only use my TINY SA for 11m , 27mhz ssb cb restoration and tuning, this is answers my qustion whether it would be worth upgrading too.
Are then any other advantages with the ULTRA for my HF endeavors?
Much appreciated.
About the only other advantage would be the increased dynamic range in SA mode, ie you'd be able to see harmonics at a lower level than would be visible with the non-Ultra. But even with the non-Ultra, you'd see harmonics down to -60dB or so which is good enough.
Great stuff! 73s
You could have fed the audio out of the receiver to a DVM or something like a Simpson 260 to find your lowest signal and your results would be much more accurate.
Like I did here:
th-cam.com/video/T_E55k27EiA/w-d-xo.html
Could you tell me the maker of the step attenuator kit?
Thanks, Mike EI6AU
Here is the link:
heckits.com/62db-step-attenuator
@@AE5X Thanks very much for the info, Mike, EI6AU