TO CHANGE THE SIZE OF THE WINDOW :
HOLD DOWN KEY : Ctrl & ROLL THE MOUSE WHEEL
TO RETURN TO THIS HOME PAGE = CLICK LEFT FACING ARROW AT TOP LEFT HAND CORNER
INTRODUCTION TO THE vk2iau allcoax multiband antenna
The vk2iau coax multiband antenna is an RG58U coax cable multi strand core antenna configuration of 4 interchangeable
components , as follows:
A: antenna A = INVERTED V DPLE = 2.15m long EITHER SIDE OF THE INV V DPLE APEX . coax cable outer
braid radiating elements in parallel , plus feedline coax to radio
B: antenna B = SINGLE 2.15m long coax cable outer braid radiating elements in series,
plus feedline coax to radio
C: 3.5 metre long shorted coax , AS A COIL , counterwound on a small plastic cable drum and held in place by cable ties , the drum is then
covered in aluminium foil which is independantly earthed , all of this is then covered in a nylon stocking to protect the aluminium foil.
D: 4 metre long shorted coax , AS A COIL , as above
Note: ALL EXPOSED PARTS ARE COVERED IN ‘ ROOF & GUTTER SILICON “ , which , when cured is wrapped in electrical
tape note: impedance at the radio is achieved fully or in part by COMBINATIONS OF THE 4 interchangeable components
( as described above ) , to utilise inductance / capacitance to extend the the " frequency time " longer than the " frequency
physical length time of the radiating elements " thus preventing the signal from hitting a brick walland bouncing back as unwanted SWR .
NOTE 1: I have found the antenna system COMPACT and excellent for TX and RX from my 6m boat
NOTE 2: The coax cable is laid on the roof tiles of my house , very inconspicuos , almost " secret " . COULD BE USED DIGUISED
AS A WASHING LINE
TO CHANGE THE SIZE OF THE WINDOW :
HOLD DOWN KEY Ctrl & ROLL THE MOUSE WHEEL
Epplus Direct
He’d written this C# console app three years ago. Back then, it was a scrappy script using EPPlus 4.5, just to save his team two hours of manual copying and pasting. Now, the system had metastasized. It pulled from three APIs, two SQL databases, and a CSV vomited out by a legacy mainframe in the basement.
:EPPlus can open files from the file system or streams, making it ideal for web-based downloads or server-side processing. Licensing Transition epplus
This caused a massive stir in the .NET community. If you are building a public-facing website, an internal enterprise tool, or selling software, you cannot use EPPlus 5+ for free legally. You must either pay or stick to the older, unsupported version 4 (which is risky due to security and lack of updates). He’d written this C# console app three years ago
// Add a worksheet var worksheet = package.Workbook.Worksheets.Add("Sheet1"); It pulled from three APIs, two SQL databases,
Working with EPPlus typically revolves around the ExcelPackage class, which represents the entire Excel file. :