Comparing 2 Endfed antennas.

At my location with the lot size, the best antenna for me is an Endfed. Now I am not at all complaining because just a short time ago I was in a condo using the MFJ 1788 loop antenna. My first Endfed antenna was the W1SFR 6m-40m. I will once again repeat myself saying this antenna is great I have kept mine for portable operations once the summer comes.  The top rating for this antenna is 100 watts and since I operate digital at power levels that could be beyond this antenna rating. I did not want to overdo it and lose this great antenna. I then purchased the DXextreme Endfed from DX antennas. Mine is the 33-foot version which is the shortest but is the right size for my lot. While using my W1SFR Endfed on FT8 I monitored it's results on PSK reporter and captured these results with pictures. I wanted to see if there were any noticeable differences in results between the two antennas.  The new antenna went up on February 28th and I have been monitoring PSK reporter and taking pictures of the new antenna results. The mode of operation has been FT8 and the power output for both antennas was 60 watts. The location for the new antenna was the same as the old and the old antenna was 35 feet long and the new antenna is 33 feet long. I was not really expecting any differences but I was surprised when I compared the results.
The first comparison was 20m during the day between 14:15-14:45 local time. The first picture is from W1SFR's Endfed antenna at 14:16 and the second picture is at 14:40 from the DXextreme Endfed antenna.
W1SFR 20m

DXextreme 20m

To my surprise, the DXextreme antenna seemed to make it into Europe and a few other spots the W1SRF EndFed did not. I do have other pictures from other times as well that show the same results but I did not want to fill the post with them as I have other bands to show.
The next band is 30m and again these pictures are from early afternoon at 14:50 local time for W1SFR's antenna and 15:40 using the DXextreme antenna.
W1SRF 30m

Once again I noticed that my spots in Europe were more with the DXextreme antenna over the W1SRF.
Regarding 40m I was happy with the W1SFR antenna compared to my balcony mounted MFJ 1788 back in the condo as I really had no luck reaching Europe on 40m with the loop antenna. The W1SFR allowed me to get into Europe and I was happy with that. But the DXextreme really opened things up for me overseas.
DXextreme 30m
Overall I am very happy with the performance of the new antenna it also allows me to rest at ease knowing I am not overtaxing the W1SFR Endfed in the digital modes.

W1SRF 40m

DXextreme 40m


Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

LHS Episode #332: Global Pandemicast

Hello and welcome to the 332nd episode of Linux in the Ham Shack. In these troubling times of global viruses, we can be healthy and maintain social distance by talking with you via the Intertubes. In this episode, we talk about COVID-19 (duh), learning Morse Code, homebrewing, open data sharing, legendary DXpeditions, more COVID-19, WEFAX, mesh networking and much more. Thank you for tuning in and stay safe out there!

73 de The LHS Crew


Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Weekly Propagation Summary – 2020 Mar 16 16:10 UTC

Weekly Propagation Summary (2020 Mar 16 16:10 UTC)

Here is this week’s space weather and geophysical report, issued 2020 Mar 16 0057 UTC.

Highlights of Solar and Geomagnetic Activity 09 – 15 March 2020

Solar activity was very low. Region 2758 (S29, L=229, class/area Cro/020 on 08 Mar) was absent of significant flare activity and decayed to plage on 10 Mar. No Earth-directed CMEs were observed during the reporting period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached moderate levels throughout the period with a peak flux of 175 pfu observed at 10/2110 UTC.

Geomagnetic field activity reached unsettled levels on 12-13 Mar in response to weak CH HSS influence. Quiet conditions prevailed during the remainder of the period.

Forecast of Solar and Geomagnetic Activity 16 March – 11 April 2020

Solar activity is expected to continue at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 20-22 Mar in response to recurrent CH HSS influence.

Geomagnetic field activity is expected to reach active levels on 27 Mar and unsettled levels on 19-21, 27-28 Mar due to CH HSS effects. Quiet conditions are expected for the remainder of the outlook period.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx

– – – – – – – – – – – – –

Be sure to subscribe to our space weather and propagation email group, on Groups.io

https://groups.io/g/propagation-and-space-weather

Spread the word!

– – – – – – – – – – – – –

Links of interest:

+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx

Space Weather and Ham Radio YouTube Channel News:

I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.

Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.

You can help!

Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:

https://www.patreon.com/NW7US

The YouTube channel:
https://YouTube.com/NW7US

..


Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

ICQ Podcast Episode 320 – Kit Building Tips

In this episode, Martin M1MRB is joined by Chris Howard M0TCH, Martin Rothwell M0SGL, Ed Durrant DD5LP and Frank Howell K4FMH to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is - Kit Building Tips.

ICQ AMATEUR/HAM RADIO PODCAST DONORS

We would like to thank David Strachan (2M0WHX) and Terry Bradford and our monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

- Clubs as Hubs? - New Ham Radio Syllabus: Exam Pass Rate Figures Released - Motorola wins Copyright Infringement Case against Hytera - RSGB Exam Papers - Attracting youth to ham radio: Get out of their way! - A Working Scale Model of a HF Curtain - Ofcom Stops Issuing Short Full Calls - New QO-100 Band Plan Announced - Hamvention Officials Keeping an Eye on Coronavirus


Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

AmateurLogic 141: The Great Toilet Paper Famine


AmateurLogic.TV Episode 141 is now available for download.

RSPDUO Tone and DCS Decoding, Exploring RigPi Deeper, Coronavirus Hoarding, and more.
1:17:39
Download
YouTube


George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

Why did I overlook the simple?

What is going on?
Back in November 2017 I ordered and built the Funk Amateur FA-VA4 antenna analyzer kit. The kit was built and passed the smoke test without issue. I then went through the calibration process and it was successful (so I thought). I was not able to get the unit to work and I felt it was due to user error and tried to run the calibration again but without success. No matter what band I checked the SWR was off the scale. I even connected the device to a dummy load without success. I read and reread the manual and even checked out some YouTube videos and was just getting more frustrated so I was thinking of selling it to someone who knew how to operate the unit. As I watched more Youtube videos it seemed like a very straight forward unit to operate. Over the course of a year or more, I picked up the unit and tried to figure it out but just could not.
The issue
This past week I picked it up again and was looking it over but in so doing for some strange it occurred to me to open up the kit and look over my work. It's embarrassing to say but as I looked the board over I saw that the female BNC connector  I did not solder the BNC center pin to the PCB board!!! I soldered this pin, did a reset to the unit and then ran the calibration again BUT this time the calibration took a lot longer. Once it was done I connected it to my Endfed antenna and checked 15m this is a band that I know the SWR is decent. Low and behold the unit worked as it should way back in 2017!! I just can't believe that I overlooked the obvious to open the kit up and have a look around. I now get to discover this great unit that I built years ago.
All is well 

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Hamvention vs Coronavirus

As I watch the news and as a side note, I am getting very worn on hearing every detail they can pick at regarding COVID-19 anyway......Hamvention is not that far off considering all the advance planning that has to be done. As you know this is one of the largest gatherings of Amateur radio ops, SWL's and those just interested in radio communications. It is the grandstand for manufactures to release new and newly improved radio gear.  This gathering is the Meca within the radio world as we all at one time or another want to make our way to this event! On March 3rd a press release from the organizers of Hamvention was released.  Has COVID-19 changed your Hamvention plans? Now in the Hamvention press release, it said the following:

From Greene County Public Health:
There are currently no confirmed cases of COVID-19 in Ohio. Greene County Public Health (GCPH) is working closely with the Ohio Department of Health (ODH) and the Centers for Disease Control and Prevention (CDC), and are prepared to respond, should there be a community spread of COVID-19.  The current risk to the general public is very low. Travel advisories are in effect and can change anytime, so please see the CDC Travel Advisory webpage before travelling:
From my perspective, I am not to comforted to know that to date (as of March 3rd) there have been no confirmed COVID-19 cases. Hamvention is just not made of those from Ohio but worldwide. The demographics of our hobby are not spring chickens, COVID-19 and an elderly populous gathering do not mix well. I am guessing by now my readers understand my direction for attending Hamvention this year.....BUT does it have to be cancelled or can it be possibly rescheduled? It would be nice if Hamvention had a plan "B".




Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

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