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Hi All, Over the years I've collected a fair bit of test equipment. I'm lucky enough to have 3 HP sensors and four different HP power meters as well as some good quality attenuators that allow me to measure power to 18GHz and up to 50W. None of it has been calibrated for years yet all four meters and three sensors agree to within 0.1dBm of each other when measuring their internal references or other signal sources up to 10GHz. These results are repeatable in another radio shack with similar equipment. That makes 6 meters and six sensors all behaving in a similar way.? I would say that gives my friend and I a good degree of confidence that the readings we make are valid. I can't say the same for bird meters or any (insert brand name here) power meters with HF thru UHF capability but as someone else said, these meters are in a different class not to be confused with the HP style meters and sensors. Of course, my equipment has no calibration traceability but I'm a ham and I don't need it for a hobby. My gear can meet Rob's +/-1dB requirement easily and I'm sure most sensors that are sold as working perform as expected. I've only purchased one bad sensor and it was pretty obvious it was crook?(wavering reading on the internal reference) as soon as I started using it. Money was refunded immediately. When it comes to cost, I'd argue that hams spend more money on a single radio than the cost of a HP meter with cable and sensor. Anyway, I like my equipment and for those that want to buy similar I'd say go for it. Regards Lou VK3ALB On Thu, Oct 8, 2020 at 6:33 AM nigel adams via <bristol.rell6l=[email protected]> wrote:
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