SaiDian 5Pcs/Set EMC EMI Near Field Probe 9KHz-3GHz SMA Female Antenna Fine for Conducted Radiation

The H Field probes exhibit directionality and are able to pick up on all frequencies from 0 to 5 GHz. The E Field probe seems to be fairly weak, having similar performance to an unterminated SMA connector itself. All of the antennas were coated with solder mask, so they will not short to your DUT. All measurements were performed with a TinySA. When the LNA is enabled, the noise floor drops to somewhere around -120 dBm.

These would have earned five stars if not for being unable to obtain specs that include the resonant freq for each coil. Even stellar products can be frustrating if one can't understand exactly what was bought. You, like missing dimensions from product-descriptions, etc. Given the wide range of freqs these things supposedly are supposed to cover, describing the freq of each coil seems to be as fundamental as dimensions of an appliance.

About 10% the price of the HP or Siglent probes, with 90% of the performance. Great for tracking down RF leakage in projects.

what can I say other than they seem to do what they are supposed to do

I tested them out, they work fine

you get what you pay for. wouldn't use for measuring fine-grain signals.

Good value