Tag Archives: Zero-Five Flagpole Antenna

Feeling out Antennas for K9ZW Island QTH – Part 3

Focus has been on installing the Custom Extra Heavy Duty Zero-Five Flagpole-Vertical HF Antenna.  First you have to dig a hole.  of course we hit bedrock just 24 inches down, and brushed against the telephone wire despite the hole not being on the original plot of land.  No idea why the telephone wire ran west onto what was at te time a neighbors parcel.  Some mysteries are lost to time.

down to rock at 24 inches

Since we hit rock we had to go for a modified base, where weight and physical dimensions substitute for the 24 inch 6 ft deep cylinder we’d expected to have poured. I was off island when it was formed and poured, so here is the result.  We made a form plate to put the L-bolts in the right spacing and pattern.


Final dimensions ended up 4 ft x 4 ft x 2 ft, with a 2 ft x 2 ft by 3/4 ft riser.  Because of the way the bedrock stripped the overall pour was just over 2 yards of high strength concrete – nearly three times the expected 7/10ths of a yard for the tubular design we couldn’t use.


Here is the result once the forms were removed:


Zero-Five Flagpole base

I didn’t want to take the spacer off at this stage, preferring it to keep everything in alignment until the base is actually installed (it is sitting on the bolts in the picture).

Feedline conduit will turn up along side the base, and I’m running power to the area for later use.  Power will be in a separate 3/4 inch conduit,

I’ll be making up a copper “halo” to go around the base for radials.

Glad to have the support of some engineering for “on rock foundations” as blasting a deeper hole seemed pointless.  I don’t think this flagpole is going to go anywhere before the weather bends/breaks it first.





K9ZW Shacks Evolve – Proper Dummy Loads, Additional Metering, New Power Distribution, Specialized Headsets and more…

I knew that doing a new station build wasn’t for the faint of heart, and as usual I am loath to miss a chance for upgrading the home QTH station.

Here are a few of the recents adds:

Item                                                                       Home/Island

Alpha-9500 Amps                                                     X X
Rigrunner-4007U Metered Strips                         X X
4o3a Station Genius                                                 X
SP7IDX Hexbeam                                                         X
LMR-400DB Below Grade Feed                                X
LMR-400 Jumpers                                                       X
LMR-400UF Up Tower Feed                                     X
Polyphasers incl two custom multi-units                X
Collins DL-1 Dummy Load                                     X
Station Monitor                                                        X
Bengali Intrepid                                                       X
Alpha-4510                                                                X
Palstar AT-Auto w/Kessler Upgrades                     X
4o3a Antenna Genius Switches                            X X
Nueman BCM705 Microphone                                X
Shure SM5B Microphone                                     X
Behringer MX402A                                               X
Behringer MX602A                                                   X
Recording Grade Audio Shapers                        X X
Collins SM-2 Microphone                                        X
W7FG True Ladder Line Dipole                             X
Alpha-2000 Dummy Load                                  X
RadioSport RS22CR Classic                                   X
KD9SV BOG Beverage Amp & Switch                  X
WD1A Cable – BOG wire                                          X
K1FZ RBOG Reversible Beverage on Ground     X
Zero-Five Custom HD Flagpole Antennas       X X
CAT6eDB below grade control                               X
Radial Wire                                                             X X
Waters 334 Dummy Load                                        X
Helix 1/2 Prepared                                                    X
RG6DB for RBOG Feed                                            X
Tashjian TM-370 SkyNeedle                                   X
New Tower Base, Platform and Coax Arms         X
AlfaSpid Rotor                                                           X

On Order
Flex Maestro                                                            X X

There have also been massive deliveries of the needed connectors and other parts – whew!  I am sure glad I’ve not seen the costs all tallied in one spot – ouch!

All in all the order and assemble is fun other than the bills.  Now in spring the read work begins!




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