Sunday Portable

Spent three hours last Sunday, April 7th, out at the local park with Jim VE3ULC, and Rick VE3ORY, operating portable QRP.  This was our first "Portable Sunday" of the year.

The weather, while dry and no snow, was pretty cold and damp, which didn't sit too well with Rick as he hasn't been back from wintering in sunny tropical Florida all that long.

I spent some time playing around with APRS, which is all new to me, as is the rig.  Slowly we're figuring out things, and more to the point I actually have the radio sending out beacons now.  By the way, if you get an FT2D - get rid of the stock antenna and get an after-market one.  The stock whip is not good at all.

The other thing I got to do was 2m CW.  I suppose as are most areas, 2m is pretty quiet these days, so I wanted to see what I could do.  In this location, I've never heard of anyone doing either CW or SSB on 2m..........so I had to try.

It took about 10 minutes of calling CQ, but I did get a response from Ron VE3GO, who was a very long 3 km from my location.......However, I'm sure that CW contact was actually long path !! 😆

The bad thing of the day was the fact that I had forgotten my 22-foot painter pole and only had an 8-foot version with me.  I used my short Buddipole whips to make a 2m dipole and made the contact on that. Worked great !!

I was so excited at finally getting back out to the park that I forgot to write down the SFI of the day.........I do know that it wasn't very good.

Looking forward to many more of these events in the local parks and on the local islands.  It's a great way to spend a Sunday.

The operating location - the back of the van.

Messing about with Antennas

Yesterday here in Kingston it was a glorious day, with a high of 27C......41C with the humidex, so of course it was the perfect day to go to Lake Ontario Park and play with some antennas.

Several years ago I bought from Buddipole a Rigid Shock-Corded Whip and a Mini Shock-Corded Whip, and I have never used them...they just sat in the corner of the shack.   The issue here is that Buddipole produces no information about how to use these whips, unlike the rest of the products they have.  These two types of whips appear to be orphans.

There seems to be nothing on the Internet about these whips, no ideas for settings or how to set them up, or even how to tune them so they work on various bands.  So, it seems like it was time to experiment with them.

My Rigid Shock-Corded Whip is made up of five 22 inch sections, with a 19 inch adjustable stinger on the top and a 17 inch one on the bottom, giving it a total length of 146 inches.  According to the Buddipole literature, this whip is good for 10m through 17m, and can be used on 20m with the use of two extra 22 inch arms.

After four hours of experimenting with different set-ups here's what I managed to get to work:

On 15m, at 21.150, the SWR was 2.0:1.  The whip was set up with no stingers used, and on an 8 foot mast.  I used a single 10' 9" counterpoise wire running from 8 feet down to 4 feet.

On 17m, at 18.136, the SWR was 1.5:1.  The whip was set up with the top stinger fully extended, but the bottom stinger was not used.  It was also set-up on an 8 foot mast.  I used a single 14' 3" counterpoise wire running from 8 feet down to 4 feet.

On 20m, at 14.145, the SWR was 2.0:1.  The whip was set up with both stingers fully extended and two 22" arms.  It was also set-up on the 8 foot mast.  I used a single 14' 3" counterpoise wire running from 8 feet down to 4 feet.

Even with changing the lengths of the counterpoise wire I could not get below these SWR measurements.

The Mini Shock-Corded Whip on the other hand could not be tuned anywhere.  The version I own is the nine-section version with a 10 inch adjustable stinger on top for a total length of 122 inches.  This whip is going to take a lot more experimenting before I can get it to work.

I'm very surprised that Buddipole does not seem to support these whips the way they support the other antennas they produce.  The documentation they produce for their other antennas is fantastic.

Buddipole Experiments Part 2

16' 8" fully extended whip

The last piece of equipment that got tested today was the SkyWhip Portable Telescopic Antenna that I bought from Durham Radio a few months ago.   Due to the bad weather it's sat in my Buddipole case until today.

This antenna has a fully extended length of 16' 8", and can be used for any band between 6m and 20m.   I certainly would not use it in a stiff breeze fully extended, but with the light breeze I had today it was fine.

The good thing about this piece of gear is that it fits the Buddipole parts perfectly, I don't have to carry different mounts for it.

I wanted to try the antenna on 20m, so I set it up on the 8' painter pole over average ground, just like the other tests I did today.

Using the SkyWhip Portable Telescopic Antenna and the TRSB set at 1:1, at 14.150 the SWR was 1.2:1 and I used a 15' 10" counterpoise.  It worked as advertised the very first time.  Beauty!!

So it looks like I'm all set for the planned island and lighthouse activations I have planned this summer.  Some of these antennas may even get thrown in the mix for this years Field Day.

Coming up as soon as I can find time will be the same type of article on the Buddipole 40m, 60m, and 80m antennas.

Buddipole Experiments

A dirty truck bed!!

It’s a beautiful day here in Kingston, blue skies and 17C, just a great spring day.  In fact it was so nice I decided that today would be a good day to conduct some trials with my stockpile of Buddipole parts.

I have been looking on the internet over the past few months for information on the new shock corded adjustable whips, and have found almost nothing on them, including just minimal information on the Buddipole site itself.  I did talk to Chris Drummond, W6HFP, the owner of Buddipole about the lack of resources and he agreed that there was very little out there.  I did ask Chris if he could put some baseline seeing on the company website to at least give us all a starting point to start our experiments, and he said he would.

So, armed with a copy of the book written by Scott, NE1RD, “Buddipole in the Field” I collected all my antenna parts and off to the garage and my gravel driveway I went.  If you have not downloaded a copy of Scott’s book I recommend you do.  It’s available as a free download from the Buddipole website.  This book is a great place to pick up the information to build better Buddipole antennas, and it also gives you a basis for experimenting with the extra parts.

My Buddipole parts box consists of a Standard Buddipole kit, two extra 22” arms, a TRSB, a 12’ Shock cord whip, a 9 section mini-shock cord whip, and a 5 section rigid shock cord adjustable whip.  I also have a mini-coil, two regular coils and a low band coil, and a set of 9.5’ long whips.  More than enough to build any antenna I will need.

My goal today was to figure out some workable ¼ wave vertical antennas where I didn’t have to use any coils. I wanted full sized antennas with no compromises.  Today I looked at 10m, 12m, 15m, 17m, and 20m. 

The standard items that remained constant throughout the tests were each antenna was mounted on an 8’ painter pole, and it was done over average ground.

The first test, on 10m, was done using the mini shock corded whip.  It took several attempts to get this antenna to the point it was useable.  Here are some numbers:

Using the mini shock corded whip, with no stinger used, at 28.500 the SWR was 5.7:1 with a counterpoise of 8’ 4”.

Using the mini shock corded whip, with the 9” stinger extended, at 28.500 the SWR was 7.0:1 with a counterpoise of 8’ 4”.

Using the mini shock corded whip, with the 9” stinger extended, the small coil at tap 3, and at 28.500 the SWR was 8.4:1 with a counterpoise of 8’ 4”.
 

Obviously the standard setting was just not working for me today, so I changed things up.  I used the mini shock corded whip, with no stinger used.  At 28.500 the SWR was 2.6:1 with a counterpoise of 6’ 11”.   And that was as low as I could get the SWR on 10m, but to be fair the antenna is a bit long for the band.

The next test was for 12m, not a band I use very often but I have made some great DX contacts there.

Using a 5-section rigid shock cord adjustable whip, with no stinger used, at 24.950 the SWR was 1.4:1 with a counterpoise of 8’ 4”.  No point messing with this one as I don’t think I could get it closer to one to one.

Next up was 15m, a band I use quite a bit for chasing European DX. 

The Buddipole TRSB

Using a 5-section rigid shock cord adjustable whip, with 4.5” of the top stinger used, one 22” arm and the TRSB set at 2:1.  At 21.175 the SWR was 2.1:1 with a counterpoise of 12’. 

Next was 17m and a band I like and use a lot,

Using a 5-section rigid shock cord adjustable whip, with 5.0” of the top stinger used, two 22” arms and the TRSB set at 2:1.  At 18.136 the SWR was 1.9:1 with a counterpoise of 12’.   I messed with this antenna for quite some time moving the counterpoise length up and down, and I could not get a better SWR reading.

Last up was the 20m antenna.

Using the 12’ shock cord whip, two 22” arms and the TRSB set at 4:1.  At 14.150 the SWR was 3.3:1 with a counterpoise of 15.6’.   No matter what I did with the counterpoise length I could not get the SWR any better.

It was interesting that most of my counterpoise lengths are very different from what is recommended in “Buddipole in the Field” by Scott, NE1RD, by a good margin.  It would be interesting to hear what sort of ground Scott as using when he did his experiments.  From what I saw today it is very true that the counterpoise lengths are very critical to the tuning of these verticals.

Obviously there is still some more experimenting to do, but these are a starting point and  enough to get me on the air quickly.  Still to come are the 40m, 60m, and 80m antenna configurations.

If anyone has any ideas to make these settings better, I'd love to hear about them!