NanoVNA - SWR Reading Made Easy YES! you need an antenna tuner Increase the Range of Any Handheld Radio for 6 Cents
I had to bull-chit a little bit before talking about the end fed plots. Because I was really nervous. Not just about the video, but going Antenna Mysteries
Are high SWR numbers normal for a 1/2 wave end fed antenna? Antenna Wire Length - Demystifying Feedpoint Impedance A simple discussion on antenna wire lengths, feedpoint impedance and which balun or unun to use. #hamradio
i-com 7300 on high end fed antenna 10 15 20 40 meter good swr. 3.916 with the Xiegu G90 with the Rain gutter antenna.
In this video I am going to quickly show you have to tune an antenna trap using either your antenna analyzer or a VNA (such as Snow does not affect the SWR on my 14-MHz vertical antenna, but propagation conditions sure can change a lot!
POTA Activation on 40 Meters Futzing around with the RigExperts AA55 Zoom antenna analyzer and AntScope - The No Code Tech This video briefly shows how to setup and use the NanoVNA to sweep an antenna system (antenna, transmission line, transmatch
Here on YouTube.com/NG9D we spend a lot of time fiddling around with low power (QRP) radio transmitters, simple receivers, Follow along while I try and tune a cheap Amazon Half Wave End Feed (HWEF) antenna. I make no promises this will work but I If you are antenna challenged and need to keep a low profile, then a small gauge random wire is often the answer. However
Theory of endfed half wave Antennas (EFHW) - Theory of broadband transformers 1in49 / 1in64 - Practical winding of broadband Xiegu G90 - tuner tested to dummy load
This is a simulation of the radiation pattern of an End Fed Halfwave antenna (EFHW) using the program MMANA GAL. The EFHW Tuning Antenna Traps (026) Short qso on 3.916.
Easy Modelling Your First Antenna in 5 Minutes - Vertical Antennas L-Network Tuners for Field Antenna
HKARA TTS Project Visit 12 Mar.11 HKARA Website: I mounted the 9:1 Un-Un matching components in a watertight box. What's your SWR chart look like? I have the EFHW-7510-2K-Plus. I put mine up in an inverted L - going up about 30 feet up a tree near the
SWR Bridge แบบ LED The Fox Delta antenna analyzer is $54 as a kit which comes with the case and for another $10 you can purchase it built or if you
Xiegu G90 swr scanner graph feature shown Check the without G.P Antenna SWR
#347: Quick test of the 40m Halfwave End-Fed antenna using a 49:1 transformer / UNUN This is part 1 of 2. In part 1 I begin to try and tune an EFHW antenna for 40m / 20m / 10m with a 49:1 transformer and a Xiegu
r/amateurradio - SWR plot for EFHW at 20m and 40m—what would you. 8 upvotes · 39 comments IC-7300 on high end fed antenna 10 15 20 40 meter Shortened Radial Trick for HF Limited Space Antenna Experiment + More
Hey I have a RigExperts AA55 Zoom antenna analyzer and a cheap tablet. Just futzing around and hopefully I might learn Made Easy - NanoVNA-H4 - HAM Radio - TheSmokinApe In this video we take a look at the NanoVNA-H4 and use it to perform a
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NanoVNA for Antenna Analysis Antenna building #1 - EFHW Antenna - theory and practice of the broadband transformer
Antenna Installation at WW2PT End Fed Half Wave (EFHW) Transformer Variants | Ham Radio Avoiding Unnecessary Transmit Signal Attenuation
Take your known length of wire and multiply that value by the minimum swr frequency your getting to establish a velocity figure in ftMHz or A short video showing a basic ability of a nanoVNA to display standing wave ratio (SWR) as measured through the reflection port
Making and tuning an EFHW antenna for 40m/20m/10m [PART 1] Radio Babble, 80m EFHW SWR Plots, The Angel 40m Band Pass Filter and HF Low Pass Filter measure with nanoVNA
Fox Delta and MR100 antenna analyzer PLOT SWR DELTA LOOP FOR 40 METERS
40m Antenna -V- DIPOL versus VERTICAL BAZOOKA Multi-Band HF Vertical Antenna
Random Wire Solution for an "Interior Shack" SWR plot for EFHW at 20m and 40m—what would you do? : r
I needed to fix one end of my OCF dipole antenna for amateur radio and thought you might be interested in tagging along to see Antena vertical portable para la banda de 40m OAntennas How to troubleshoot high SWR values on an 80-10 49:1 EFHW
MAKE SURE YOU STAY TO THE END OF THE VIDEO.* Contacts from my Parks On The Air (POTA) activation of K-1741 Lum 40m EFHW second harmonic above 20m band : r/amateurradio
Brian, KM6GO, wants to know what determines the output of the Antenna and how to maximize his output? Subscribe: My goal: get at least a two-band end-fed wire (80m/40m) that would work reasonably well on the digi part of both bands, be easy to tune up (trim)
How-To Build, Cut & Tune an End Fed Half Wave Ham Radio Antenna! Antenna Tuners Things to Consider A nanoVNA is a portable and affordable vector network analyzer used for measuring and analyzing the performance of radio
TelescopeMan goes against the crowd and says YES you need an antenna tuner. Most hams are told they don't need an antenna We take a look at the various options open to ham radio operators, and the considerations that may affect your choice.
NanoVNA-H4 Made Easy - HAM Radio - TheSmokinApe Ultimax Antennas (ULTIMAX-8040) Double Bazooka SWR Graph Using Icom 7300
This is a followup video to #344 where I assembled the 49:1 UNUN kit from HF-Kits / ARRL. Here I show finalizing the antenna, Antenna Tuning with Nano VNA UPDATE: 30W is required for accuracy in the SWR graph. User Manual Pg. 13-2. I just put this antenna up and I'm impressed with
Viewers ask questions about end fed antennas: wire length, wire size, and getting the perfect match. Joe and I tackle them all. antenna in the garden. While analyzing the SWR curve with my NanoVNA, I was intrigued by the SWR reading on 40m, almost 2:1 at its minimum… Will tuning EFHW antenna for 40 and 20 meters affect performance
Medición de relación de ondas estacionarias de antena vertical portable corta diseñada para la banda de 40m. La antena vertical Adding 80m to a 40m EFHW antenna
Refining the EFHW with a Variable Transformer - Antennas - SOTA Braving the elements, I went to install a wire on the Cacti for 17m. By the time I got to the antenna and looked up.. then down at the
#314: How to use the NanoVNA to sweep / measure an antenna system's SWR and optimize its tuning Short video about various SWR plots i took with my NanoVNA and SimNEC for different EFHW transformer variants. Follow up to
Schematics of 40m BPF: 0:00 - Aqui uma demonstração para I recorded all smith chart degrees, logmag db, and swr on all bands, with those numbers could someone tell me whats going on with this thing? nano vna to tune antenna tuner
chart with the 9:1 would that That said, if you already have 66 feet strung up you can change to a 49:1 Unun and make it into an EFHW. Read those bold antenna ads with skepticism! Here is how you test an antenna switch for SWR insertion, in line attenuation and isolation between ports. The NanoVNA is a
nanovna-users@groups.io | SWR and Return Loss graph of an Plot de roe en una antena delta loop para 40 metros. Colgada del vertice superior a unos 15 metros de altura y alimentada en la
Using a Vector Network Analyzer (VNA) to measure and understand RLC parasitics in radio / wireless design and construction. SWR and Return Loss graph of an EFHW wire with 49 to 1 UNUN. Barry So far, the SWR in the ham bands of interest (80 and 40m) are very NanoVNA - Measuring RLC Components
MFJ window feedtrough panel is in place, so I moved the Ultimax end-fed longwire outside and hung it off a 31' Jackite A Look Inside The 9:1 Un-Un Matching Unit
TW2010 Setting up the NanoVNA for checking baluns and insertion losses Part 2 Testing RX of my K3 with HC2AQ by Invertet V DIPOL 40m to full size Vertikal with BAZOOKA.
Antenna Axiom de W1GV 40m bands, and how to interpret the SWR and Return Loss graph? Murat Bollucuoğlu ▻ Real End Fed Half Wave Antennas. 37w · Public · Hello, my Trapped Antenna Design & Build (008g1)
Michigan Cacti DIY 4-band Vertical Becomes 5. Sorta I take the Moonraker MRQ-213 telescopic whip up Fan Fawr (GW/SW-005) & end up generating a huge pileup using this 1/4 wave
This video is about the stuff that goes into the successful design of a trapped antenna. I show what kind of effects the Resonant Perfect Random Wire Antenna Lengths For Maximum Performance: Ask Michael KB9VBR
Let's Fix My Off Center Fed Amateur Radio Antenna 40M half wave single wire sloper antenna swr questionCut or Add
Moonraker MRQ-213 Quarter Wave Vertical For SOTA This week we built a tri-band HF vertical for 10-15-20m and mount it to a steel shed as a ground plane. Plans are here: 5-minute video how to download the software and make your first ground mounted vertical - easy. Download:
There are quite a lot of End Fed Half Wave antenna kits on the market and assembling them is all pretty much the same process. Increase the range of any handheld radio, A Baofeng, Yaesu or Icom with a counterpoise, otherwise known as a "tiger tail". A tiger How to shorten wire length for 20m band without affecting 80m and 40m bands, and how to interpret the SWR and Return Loss graph?