New Buddipole mini shockcord whip

Buddipole finally released a mini version of their adjustable shockcord whip, and today I got to test it with Wayne KD0VPR and his recently finished Bit20X transceiver. We made one contact from CO to NH but conditions were tough with a contest going on.

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We had the Buddipole set up as a vertical, with 4 of the 11″ arms and the 9 section whip fully extended. We only needed 1.5 turns on the coil to make up for the slightly short 1/4 wave. Two opposing elevated radial wires were about 17′ each and dropped from the versatee at 8′ to about 2′ above ground at the ends. We made two more contacts, both to NH, from the same setup but 100w and an FT-450.

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For anyone considering an adjustable whip, I would recommend this over the longer version, unless you go up to the 32″ one. The pricing needs to be updated for the 24″ version as it costs more right now than the 11″ version!

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Feedburner active!

Ok, it took me a little while, but I finally have the feedburner plugin activated and working. Feel free to subscribe using the link in the sidebar.
Bryan N0BCB

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Buddipole 2m 5/8 wave vertical

I’ve been doing some searches for a 2 meter, 5/8 wave vertical using Buddipole parts, and so far I haven’t come up with one. So, I decided to figure it out on my own! This is pretty easy to build if you have the Versatee and rotating arm kit. I only had 2 whips available, but with 3 and a jumper you could use 2 ground planes.
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This antenna is tuned around 146.52 as a center frequency. Adjusting the element lengths and/or the coil taps should allow use over the whole amateur band

Freqency

SWR

R

X

145.0

1.4:1

44

17

146.0

1.1:1

45

4

147.0

1.3:1

63

10

A closeup of the Versatee.  Connect the Red coax wire to the Blue Versatee connection.  Connect the Black coax wire to the Black versatee connection.  The Coil wander lead connects to the coil 1.5 turns in from the brass screw at the top of the Coil. This should equate to ~ 0.15 uH of inductance.

MFJ-259b at 146.52

Ground plane element length (19.25″):

Vertical element length (48.0″):

Mini coil tap (1.5 turns in from the top, brass screw)

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Gram and Grampa Bibeau remember

I captured this audio clip while drinking coffee with my Grandma Nancy and Grandpa Paul Bibeau on September 20, 2012 and thought other family members might enjoy it.

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5BTV radial wire system

I put together a radial system for my 5 band trapped vertical antenna. I’m using (32) 16.25′ radials, soldered to a 10 gauge bare copper wire. The copper ring will connect to the 3 bolts at the base of the vertical. For wire, I purchased a 500′ roll of underground dog fence wire at Home Depot. Each wire will be buried just below the surface in a star burst pattern. I used the ARRL antenna book to calculate the optimal radial system for the amount of wire I have.

5BTV radial wire

5BTV radial wire

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Blue Sky Marathon 2013

Erin and I helped with the Indian Summer North aid station at the Blue Sky Marathon for our 4th consecutive year on Sunday.  Erin was the race photographer, and I helped with radio communications.  It was a fun day, with great weather.  I made a time-lapse movie that covers roughly 7am to 1pm, looking West from our aid station.

 

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Homemade shock cord whip Part 1

I decided to try making my own shock corded whips for my Buddipole system. There are a couple of good reasons to do this. So far I’ve purchased all parts at 13″ or less to keep the Buddipole good for travel. The Buddipole whips look nice, but they’re 22″ long and are expensive.
For about $50 shipped from quest outfitters in Florida, I purchased (18) 13″ Easton 0.340″ tent poles. My plan is to machine brass adapters for a tight slip fit between sections, and a 3/8-24 brass adapter for the versatee. All parts will be held together with 1/8″ shockcord. This will give me a set that can be used as a dipole, or as a vertical with my RAK. More updates once I start turning metal!

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Posted in B's Blog

Activation Alert: Pemigewasset Loop

I’ll be backpacking the Pemi Loop in New Hampshire this weekend, and plan to activate 4 summits.  Times listed below are approximate depending on hiking speeds and conditions.  I will be running 10 watts SSB with my KX3 and LNR 10/20/40 EFHW trail friendly antenna.

Pemi_Loop

Saturday 9/21/2013

19:00 W1/HA-092 Owl’s Head Mountain (10 pts)

Monday 9/23/2013

13:00 W1/HA-022 South Twin Mountain (10 pts)

15:30 W1/HA-095 Mt Garfield (10 pts)

19:00 W1/HA-022 Mt Lafayette (10 pts)

 

If I’m feeling really ambitious, I may detour on Sunday the 22nd and pick up W1/HA-228, Pt 3051 (4 pts).  I will probably get on the air Sunday night from my campsite.

 

Hope to hear lots of stations on the air!

 

Bryan N0BCB

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Alternative Buddistick Vertical

I started my HF career with a Buddistck kit, and learned to tune it pretty well with the factory options. It was my primary SOTA antenna until I switched to a 24′ carbon crappie pole and EFHW for lighter weight and faster deployment. I’ve been looking for a way to use the Buddistick as a camping and travel antenna. My goal was to keep the component lengths to 13″ for suitcase packing.
I decided to add an 8′ Buddipole shock cord mast so that I don’t need to rely on a place to mount the clamp. I also upgraded to a Versatee and the rotating arm kit RAK so that I could deploy the antenna without a wire radial.

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Tonight I tested the setup on 20m and was able to contact K4Y with 10w from my Elecraft KX3, first try!

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The whole kit weighs a few pounds and takes up very little space when packed.

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I made my own guying kit from MSR aluminum tent stakes and paraline. I am planning to print a 3D guy ring so that
I can still rotate in horizontal mode.

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Soon I will add a couple more 13″ arm sections to make tuning easier.

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