Friday, August 7, 2020

Building a 10 Meter Dipole

 10 meters is one of my favorite bands.  I guess it reminds me of how I got started in radio, back in my CB days.  CB/11 meters is very similar to 10 meters when it comes to propagation.  When it is hopping, you can hear people from all around the world.  What makes it so much fun is the uncertainty of the band.  

I needed an antenna for 10 meters.  I looked into purchasing a vertical 10 meter antenna, but that's no fun.  I enjoy making my own antennas and it is satisfying to make contacts using an antenna built with my own hands.  I have made several antennas over the years.  From fan dipoles to tape measure yagis to my log periodic satellite antenna, I enjoy making them.  What I enjoy as much as making them is bringing all of you along with me in the journey through the project.  

My latest build is a 10 meter dipole.  I fashioned a center mount to attach to a mast and I use two stainless steel 102 inch CB whips for the elements.  I measured the swr of the final product using my nanoVNA analyzer and was pleasantly surprised how well it performed even at the top end of the 10 meter band.  

I have the antenna up in the air and am anxiously waiting for the bands to come alive in the upcoming solar cycle.  I hope I do not have to wait too long...

Part 1:


Part 2:

Part 3


Maybe this will give my viewers some ideas and get the creative juices flowing.  Get out and build something.


73

Bob

KK4DIV

Tuesday, April 28, 2020

A little project while you are stuck at home

For some of us, it has been difficult staying home during this pandemic.  Many have the need to get out and do something and sitting around the house is not in our nature.  Why not get out in the garage and work on an antenna?  See the video below.

Thanks to my viewers and readers for your support.  And thank you to my Patreon supporters.  If you are not a Patreon supporter, please consider supporting my channel and helping me bring content and new products to share with all of you.

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Thanks and until next time, 73!

Bob KK4DIV

Wednesday, January 29, 2020

KK4DIV Report on N4Y Winter Field Day 2020


As many know, Winter Field Day was last weekend Jan 25-26, 2020.  I was invited by Greg, N4KGL to participate with his N4Y group.  My wife and I joined Greg, Greg's wife, Dennis WA6QKN, Chris VA3ECO, George W4GHG.  The weather was cool at night, but honestly, could not have asked for better weather.






The first night the rest of the group went to nearby Chipley, FL for dinner at a local Mexican restaurant.  My wife and I opted to stay at the campsite and cook steaks and vegetables.  



We had a great evening eating and chatting by the propane campfire.


We were set up inside the popup canopy with a wall kit that provided overhead shelter as well as wind shelter.  The wall kit provides a front zip-up door as well as a window.  My station included the following:

 Yaesu FT-891
LDG Z100 autotuner
SignalinkUSB, SOTABeams 20,30,40 bandhopper linked dipole antenna
Acer Windows 10 laptop
Bioenno 20AH battery in a Powerwerx battery box
Bioenno 120W solar panel with their 20amp MPPT solar charge controller

Greg and I also set up packet communications between the 2 campsites.  I used a Kenwood TH-D72 with the laptop for packet communications.  

My mode of choice (as it usually is for these kinds of events) was PSK31 using FLDigi.  I was socializing more than operating and only logged 20 contacts.  But, hey...its better than none. Overall, the group racked up over 9000 points.  

Here is the video:




You can check it out my videos early and see other private videos by visiting my Patreon page and becoming a patron.  http://patreon.com/bobplank 
Becoming a patron helps me keep this channel going and allows me to bring new product for everyone to see.

Also consider checking out the Amazon listings below of some of the gear used.  Buying from these links also helps fund the channel and allows me to keep bringing new content to my readers and viewers.

Thanks to all who read my blogs and view my channel.  With a special thanks to those that support me one way or another.

73! de Bob KK4DIV




Wednesday, January 8, 2020

Winter Field Day Plans 2020


Winter is coming. A line immortalized in Game of Thrones, one of my favorite shows. Winter Field Day is coming. A line from my favorite hobby. Many of us know what Winter Field Day is all about, while others may think that field day only happens in the summer. Yes, the ARRL Field Day is in June during the heat of the summer here. But winter field day is a nice change from those hot days. On the 25th and 26th of January, the weather should be nice and cool here in Florida. The plan will be to camp at Falling Waters State Park near Chipley, FL (https://www.floridastateparks.org/parks-and-trails/falling-waters-state-park). I will be operating at the park along with N4KGL.  I waited longer than I should have to get my reservation, but I was able to get the last reservation at the other end of the campground.

The fact that we are on opposite ends of the campground will allow us to utilize another aspect of this wonderful hobby, packet radio.  Greg and I plan to set up packet communications between us so that we can coordinate band usage.  At such a close range, we could just throw a rock with a note attached, we could even use a handheld 2m radio, but where is the fun in that.  I should be able to use my portable packet station and a laptop with a simple terminal program such as Tera Term or PuTTY.  Perhaps, I will try to set up a packet station with my Kenwood TH-D72 since it has a built-in TNC and we will be short range. With all of the radios at my disposal, I have plenty of options.

So, looking at my HF station for actual Winter Field Day ops, I am planning on bringing along my large HF go-kit.  This consists of a Yaesu FT-891, LDG Z-100plus auto tuner, bioenno 20AH LiFePO4 battery, bioenno charge controller and 120 watt solar panel.  This kit also includes a Wolf River coil Silver bullet 1000, but I plan on using my Sotabeams 20, 30, 40 linked dipole supported by a fiberglass pole.

I have been looking forward to Winter Field Day 2020 for months, and I hope to catch y'all on the air. Check out some of the equipment I will be using on Amazon below.

73!

Sunday, January 5, 2020

Short Winlink Packet test

I've said it before, it is good to get out and test/exercise your equipment every once in a while.  In this short video I take my portable packet station out and send a winlink email to our ARES E.C.

It was about 5-7 miles from my location to my home winlink gateway.  Once I solved a com port issue, sending the email was a piece of cake.

Amazon links for items seen in this video: Beach Umbrella Stand -- https://amzn.to/2SSuS8D Powerwerx Battery box -- https://amzn.to/2QJzmMe Bioenno 20AH LiFePO4 -- https://amzn.to/2QnFcnB



Until next time,
73
Bob
KK4DIV

RaDAR Rally Report from Nov. 4, 2023

 The RaDAR (Rapid Deployment Amateur Radio) Rally was 11/4/23.  I decided to operate from a familiar location, Pine Log State Forest which i...