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Re: TinySA Ultra generates signals while sweeping

 

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Not exactly portable but if you want to go diving into the weeds, try the HP-3561A. Not light at 33lbs but frequency would be hard to beat at 0.000125Hz to 100kHz. Pricey back in it's day at 12k$. Even has it's own tracking generator. No answer needed, just smile.

Mike C. Sand Mtn GA

On 6/6/2024 2:00 PM, Martin via groups.io wrote:

On Thu, Jun 6, 2024 at 04:21 PM, Bruce Hawkins wrote:
But they go quite low. The next real problem is the antenna. For the SA or the HF receiver (30, 100kHz is not uncommon).
Most of the PA0RDT type E-Probe antennas will work down to at least 10kHz, but noise and interference is a problem in Urban environments.

If you are really keen, you can try to hear the Earth's Shumann resonances at around 7, 14 and 20Hz, YES, I did mean Hz.



These folks mange to do it.



Regards,

Martin

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