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Re: Stand for the H4 model
Muggs,Very nice design indeed! Easy access to switches, cables, connectors, etc. And looks very stable, too. Here is what I have found for a stand (3 photos attached). For those of you that peruse
By Walt WA7SDY · #30639 ·
Re: nanoVNA vs Comet CAA-500
Yep. I have a V2Plus 4 and do a single 401 point calibration over 80-10m, save it, and use that for all subsequent HF measurements, include much higher resolution sweeps over much smaller ranges, e.g.
By Lou W7HV · #30638 ·
Re: Markers keep changing during sweep, cutoff errors #measurement
I'm not sure if this is related to your application issue, but when I do sweeps of my impedance transformers and antennas I noticed that the markers change from what I manually set to whatever is the
By Stephen W9SK · #30637 ·
Re: Stand for the H4 model
Care to post your print model? Mike W9MDB
By Michael Black <mdblack98@...> · #30636 ·
Stand for the H4 model
Hello All, I designed a stand for the H4 model of the NanoVNA see image. I couldn't find any info on mentioning things for sale in the groups.io, so if the group (or the mods) find this to be out of
By Muggs KC3UDZ · #30635 ·
Re: Deleting measurement profiles
Thank you, Bryan. I knew there had to be a option somewhere to delete or reset. Bob, KN4HH
By Bob Watson · #30634 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
H version not have FPU and hardware DSP, and can lost samples in processing (very critical for phase) also have less flash size This software - proof of concept for new device from Eric, and this
By DiSlord · #30633 ·
Re: nanoVNA vs Comet CAA-500
And, in fact, to be comparable to the Comet (or MFJ or whatever), you don't have to recalibrate every time. Just calibrate once, store it in location zero, and you're done. The electronics in the
By Jim Lux · #30632 ·
Re: nanoVNA vs Comet CAA-500
The Comet unit is not a VNA, Vector Network Analyzer, so any comparison is inappropriate. However, if all you want to do is scalar match antennas and the like, the Comet unit does not require a
By W0LEV · #30631 ·
Re: nanoVNA vs Comet CAA-500
"Better" is in regards to the user's needs/mission. The Comet is a single-port instrument which does scalar (no phase information) reflection-only measurements. If all that the user is interested in
By Donald S Brant Jr · #30630 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
On 12/21/22 10:27 PM, Erik Kaashoek wrote: > For those that want to do very accurate phase and frequency measurements, but are not willing or capable to buy a PhaseStation or Timepod, a new FW has
By Jim Lux · #30629 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
No.
By Erik Kaashoek · #30628 ·
Re: Deleting measurement profiles
On my H4 I can reset saved profiles back to empty. Theres an advanced menu, then more, then reset option. I might be misquoting the menu names but its in there. This puts the vna back to factory
By Bryan Curl · #30627 ·
Re: nanoVNA vs Comet CAA-500
I have both. I consider the NanoVNA H4 to be the more sophisticated and versatile but delicate test instrument and the Comet CAA-500 Mark II to be the more rugged, comparatively. If I am analyzing an
By NN4JW <nn4jw@...> · #30626 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
Thanks, Erik. That rules out all the devices I have, then, unless the plain F might work! Note
By David J Taylor · #30625 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
Hi David, The design of the V2, Lite and Libre devices makes it impossible to use their HW in this way. And the MCU of the original nanoVNA-H is not fast enough so I gave up on that one. Has been
By Erik Kaashoek · #30624 ·
Re: Very accurate phase and frequency measurement using the nanoVNA-H4 HW
On 22/12/2022 06:27, Erik Kaashoek wrote: > For those that want to do very accurate phase and frequency measurements, but are not willing or capable to buy a PhaseStation or Timepod, a new FW has been
By David J Taylor · #30623 ·
nanoVNA vs Comet CAA-500
Does the expensive Comet CAA-500... do anything more or better than a nanoVNA? I don't believe the Comet has software apps or PC connectivity I couldn't find any comparison on the web or info by Comet
By Chuck Cole · #30622 ·
Very accurate phase and frequency measurement using the nanoVNA-H4 HW
For those that want to do very accurate phase and frequency measurements, but are not willing or capable to buy a PhaseStation or Timepod, a new FW has been made available for the nanoVNA-H4 HW that
By Erik Kaashoek · #30621 ·
Nano VNA graphs of my 150 ft wire fed against ground on various bands
> > > > > *Nano VNA graphs of a? 150 ft long wire antenna fed against ground with a > wide-range tuner in shack* > > > > > > > > > > > > > > *Anyone up for a 160 meter digi mode QSO around 1850 kHz?*
By Barry K3EUI · #30620 ·