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A typical dipole made with relatively thin conductor has a 2:1 bandwidth of roughly 10% or ±5% of the center frequency. Your total bandwidth is 136 - 117 = 19 MHz Please note this is not mHz which

Thank you for the highly detailed response Bob, I have indeed got the shielding from the coaxial soldered to the strip on the top of the fuselage and the centre core soldered to the strip going up the

For more bandwidth, build a 2D (flat) bow tie antenna. Make it vertically polarized for best performance.

Hello all XMAS-gift hopefuls, Is there a way/method/technique for subtracting coax length from readings, as can be done in Rig-Expert's ANTScope, sftwr? 73 Phil, WF3W

117 to 136MHz is a wide band, proportionally wider than the amateur 80 meter band, which is also difficult to cover with a single antenna. One method of broadbanding a dipole antenna is to make the

Hello Bill, You have explained your problem quite well. Presumably the leading edge of the vertical stabiliser on your aircraft will be faired with fabric, fibreglass or timber. If it will be faired

Should have a balun at the feedpoint. The OEM dipole in my Cessna did. This reduces/eliminates the effect of the feedline and rest of the radio and wiring in the aircraft.

Hello all. Have had this VNA for a while and never used it much. Plugged it in to charge after a couple of years. Did well. Went thru all the usual calibration steps as always did in the past.

Each half of your dipole should be around 60 cm. They should be both equal in length for your center frequency of 126 mhz Trim each end by the same amount on each test. Half wave dipole length calc in

Hi all, I hope this is okay to post in this group as I'm new here. I've built a dipole antenna using copper tape and a RG58 coaxial for my kit aircraft as per some plans I have and I wanted to test it

This is where the magic of DiSlord happens, either you get his source code and build it yourself (currently 1.2.16): https://github.com/DiSlord/NanoVNA-D Or you get my -H and -H4 binaries (choose one

Hi,Have a look overhere:https://nanovna.com/?page_id=103The latest version from? ISlord is 1.2.073sEgbert PD0EZL -------- Oorspronkelijk bericht --------Van: Paul - W1BIU <paul.w1biu@...>

What is the Latest Firmware for the NanaVNA-H4 I'm currently running: based on DisLord @edy555 ... source Version: 1.1.01 Build Time: Dec 30, 2021 - 00:16:53 And, if there is a later version, where do

Thanks Barry! 73! Costin, YO8RCD ?n mie., 7 dec. 2022 la 19:41, Barry K3EUI <k3euibarry@...> a scris:

What can I do with a Nano VNA? https://youtu.be/wPnPuq450cU If you are up to it - here is Part II of my “Nano VNA” talk to the MidAtlantic ARC in May 2021 at their monthly Zoom meeting. The first

zero based indexing. The first person to build one happened to choose CH0 and CH1, and then it stuck. Matlab and Fortran (and BASIC) follow the mathematician convention of 1 based. C started zero

I fail to understand why the designers of all of these VNAs labeled the ports CH0 and CH1, when every other VNA I have used over the past 45+ years has had Port 1 and Port 2. This just adds to the

... and for those that have trouble finding part two: https://youtu.be/wPnPuq450cU Barry's talk start around 20' into the meeting 73 Luc ON7DQ/KF0CR

Hi Barry, great job with lots of practical examples ! Not sure if it is the error you meant, but at 37' in part 1, when talking about the OSL calibration, you said "from one socket to the other socket

https://youtu.be/pub2YCcfyog Here is a one hour PPT I did in March 2021 on the Nano VNA. The club that recorded this presentation is in the Philly area. The first portion is the “business” meeting