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From the archive: "Taylor Made" keypad for TS-990s
From the archive: A3S on top of 3-section aluminium scaffold tubes experiement
From the archive: Callum (M0MCX) running (years ago!)
From the archive: VHF Field Day 2008 M0XXT
From the archive: Obligatory evening shot of a three element 40m array
From the archive: A3S Tribander (bottom), 40m 2-ele and 80m dipoles
From the archive: Aircell 7 PL259 connector
From the archive: Kenwood TS-990s at M0MCX shack
From the archive: 15m and 10m fan dipole arrangement test
From the archive: Old prototypes
From the archive: I've had a "mohawk" since 2007 :)
From the archive: Typical stream-lined field day arrangement
From the archive: Kenwood TS-990s
From the archive: Scaffold tilt-over tower arrangement
From the archive: TS-2000 remote controller in my Merc
From the archive: This is actually three separate dipoles connected to one feepoint
From the archive: Too much RF for the wrong frequency (4:1 balun, 400w 160m)
From the archive: Two radios on the cheap
From the archive: 3 element 40m array aiming USA for 6db extra gain (over vertical)
From the archive: More field day antics running FT-1000MP and the Acom
From the archive: How we got confused CQWPX 2008!
From the archive: Single vertical with rainbow (SSB Field Day 2013)
From the archive: Three antennas, left to right: 70cms, 2m and 6m, all at 10m AGL

How to make a quarter-wave vertical mono-bander

I cover this in my youtube video. CHeck it out.

Here’s the spreadsheet:

EXCEL: <quarter wave vertical calculator> link

See also:

Quarter Wave -vs- 5/8ths Wave Vertical

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← How high should my dipole be? How to build an Inverted L for the low-bands (40m, 80m and 160m) →

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Modelling a 2-element Delta Loop for 40m
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How to make a quarter-wave vertical mono-bander
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Quarter Wave -vs- 5/8ths Wave Vertical
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Who is Callum M0MCX?

Callum lives near Solihull with his wife (Wendy) and two children. He owns an IT Recruitment Agency and is part owner of a web business.

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