K2PAA Studio VAA home page

Visual Antenna Analyzer Shield

Visual Frequency Scanning Analyzer Covers Low Freq.(30-300KHz) 630 - 6 meter bands

The VAA.exe program interface for Windows PC.

•The shield attaches to Arduino Uno R3 as a direct plugin.

• AD9850 signal generator mounts on the shield.

•Powered by USB connection to Arduino.

•Digital control and display from your PC

Scanning Analyzer visually reports SWR values over a range of frequencies.

•Reports SWR values, ERP and nodes for HF antennas from 100KHz to 55MHz.

•Provides visual antenna efficiency information Effective Radiated Power for antenna.

•Helps with antenna adjustments and provides suggested antenna length modifications.

•May be used to inject signals and adjust antenna traps like a grid dip meter.

•Doubles in your shack as a high-precision digitally controlled RF generator source.

Arduino R3 or equivalent

AD 9850

The Antenna Scan Shield kit is supplied with all components. Assembly time is about 1 hour.

We offer a completely assembled shield completely tested below if you do not have construction capabilities.

The complete Kit cost is $34.95 and contains:

Shield PC Card, Headers, Sips and IC socket, amp IC, resistors, capacitors antenna connector, documentation, Uno R3 operational software, and VAA.exe program.

Our completely assembled and tested unit costs $54.95 with all documentation and software.

Both above require an Arduino or similar Uno R3, and an AD9850 module, supplied by the user.

New Special !!

Kits with AN9850 module.

Shield Kit $34.95

Welcome to my page. As an engineer and long-time Ham, I have developed many accessory devices for my Shack. This one can provide substantial capability and convenience to your station.

Thank you, William Eckard, K2PAA

bill@K2PAASTUDIO.COM

Fully Assembled Analyzer with Arduino Uno R3 and An9850

Complete fully assembled and tested unit ready with Arduino Uno R3 (equivalent) and AD9850 to plugin and use. Cost $84.95 with enclosure case $99.95.

K2PAA Visual Antenna Analyzer

For Arduino Uno R3

Scan of My Tri-band Beam for 20, 15, and 10 meters

We can now supply the kit with an AN9850 signal generator module. Cost for both $49.95. Requires an Arduino R3 for operation.

Assembled unit with AN9850 signal generator module. Cost for both 69.95. Only requires an Arduino R3 for operation.

PC Board Only

PC Board and software only, Cost is $22.95. For those folks with parts supplies, I can supply the PC board with pin headers for connection to Arduino, documentation and our complete software package. A listing of components required for a completed shield, is on my assembly page.

Shipping and handling cost is $7.00. We use USPS for shipping within U.S. For out of country shipping please contact us at bill@K2PAASTUDIO.com for a quote.

Shipping

This low-cost shield provides an interface between your antenna and your PC and accurately measures Standing Wave Ratio and antenna efficiency. Unlike other analyzers, it presents a high resolution visual scan of all frequencies within the scanning frequency range selected. automatically. The graphic below is a scanning range of 1 to 30 MHz, and shows the resonant nodes for a tri-band antenna at 14, 21 and 28 MHz.

The most important component of any amateur station is the antenna. It should be well matched to the frequency used, with a low SWR. This maximizes its efficiency and transfers the maximum power radiation.

I developed this low cost analyzer to help adjust and repair my antenna farm. I find that is a great asset.