On Sun, Sep 22, 2019 at 06:09 AM, Mario Vano wrote:
CORRECTION: (I mistyped)
- The multi-band dipole is my 20ft high 40/20 meter trap dipole that has been augmented with parallel dipoles for 15 and 10. The feedline has a toroid common mode filter.
I've been happily using the NanoVNA and various versions of "Saver" for a lot
of projects lately, but some were just motivated by curiosity about the
device.
Unfortunately I have no other analyzer to compare to. In any case here are
some sweeps from earlier tests that might be useful for reference or
amusement. In most cases, they were done with my very early attempts at full
bandwidth calibration.
- The fm filter is a commercial product from the rtl-sdr.com people.
- The LW filter is a homebrewed design I use to augment VLF beacon hunting.
- The multiband dipole is my 20ft high 80/40 meter trap dipole that has been
augmented with parallel dipoles for 15 and 10. The feedline has a toroid
common mode filer.
- The 6 meter antenna is an attic mounted dipole with a toroid common mode
filter.
I've also used happily used the device and "saver" to design and build a 6
meter "squalo", but forgot to save the files from the latest testing run. I'm
currently working on a 400-700 mhz indor LPA design and plan to try to use the
device for relative pattern and gain testing.
Earlier tests with several types of 500-900mhz 1/4 wave mag-mount antennas and
TV rabbit ears showed useful relative gain results at 2-3 wavelength spacings.
73, AE0GL
