Antennas : 40M : 40 meter Vertical Antennas
- 40m broadband vertical antenna
- A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
[ Hits: 6088 | Votes: 15 | Rating: 7.52 ]
- Exploring the secrets of the Smith chart
- If you're a Radio Engineer wannabee, you need to understand transmission lines. It's impossible to really understand transmitters and antennas without understanding lines. Using the Smith chart is far easier than really understanding the math by Chris Scott and associates
[ Hits: 904 | Votes: 0 | Rating: 0.00 ]
- A Small Loop Antenna for Forty Meters
- Article on a small magnetic loop antenna for forty meters band by Ben Smith
[ Hits: 26390 | Votes: 8 | Rating: 5.00 ]
- A Collection of Smith Chart Resources
- The Smith Chart was originally created many years ago as an RF engineering aid by Phillip Smith of RCA.These pages includes extesnive documentation on smith carts.
[ Hits: 1330 | Votes: 4 | Rating: 2.50 ]
- Speedometers SWR Meters and Smith Charts
- Have wondered why a Smith chart has such strange grid lines. Believe it or not, there is a logical progression from Speedometers to Smith charts that will make the Smith grid crystal clear.
[ Hits: 382 | Votes: 1 | Rating: 5.00 ]
- Smithe Windom Six Band HF Windom antenna
- HF Windom antenna, cover 80, 40, 20 15, and 10 meters, antenna design
[ Hits: 24888 | Votes: 14 | Rating: 8.27 ]
- VE7KU Arrowsmith Amateur Radio Club
- Port Alberni BC Ham Radio Club
[ Hits: 249 | Votes: 1 | Rating: 10.00 ]
- VE3SFR - Rideau Lakes Amateur Radio Club
- Based in Smiths Falls, Ontario, the Rideau Lakes Amateur Radio Club Inc. has members throughout the Region, and is active in amateur radio and public-service activities in the area.
[ Hits: 197 | Votes: 0 | Rating: 0.00 ]
- Fort Smith Area Amateur Radio Club
- Web Page of the Fort Smith Amateur Radio Club
[ Hits: 316 | Votes: 7 | Rating: 7.86 ]
- Larkfield Amateur Radio Club Inc.
- Currently operate 3 repeater locations in Dix Hills, Huntington and Smithtown on 2 Meters, 1.25 Meters & 70 Centimeters.
[ Hits: 517 | Votes: 1 | Rating: 10.00 ]
- G7IZU Radio Reflection Detection Page
- Meteor Shower, Aurora, Sporadic-E and Solar Flares detected using Radio Signal Reflection, by Andy Smith, G7IZU. Live waterfall displays from three receivers, live Es propagation maps.
[ Hits: 712 | Votes: 6 | Rating: 8.33 ]
- Douglas T. Smith Editorial Service
- Digital Signal Processing Technology: Essentials of the Communications Revolution by Doug Smith, KF6DX, ARRL, 2001, ISBN 0-87259-819-5
[ Hits: 710 | Votes: 4 | Rating: 9.00 ]
- Batteries and gadgets
- Your source for weather radios, communication headsets, 14 channel radios, M&M groovy radios, smithsonian crystal radio and weather station kits, line restrictors, antennas,ham radio accessories, and battery products.
[ Hits: 1217 | Votes: 2 | Rating: 5.50 ]
- Smith chart
- Match & display imped of antennas, can graphically visualize and compare two sets of measured impedances simultaneously.
[ Hits: 3417 | Votes: 9 | Rating: 4.12 ]
- Smith Chart Software
- SimSmith is a highly interactive, real time Smith chart graphing program. Circuits are constructed using drag-n-drop. Load files can be imported from the EZNEC and CocoaNEC antenna simulation software and from the AIM4170 and miniVNApro antenna analyzers. Circuits and load files can be of any size.
Key Features: SimSmith is one of the few Smith chart packages which models transmission line losses. SimSmith also allows the description of circuit elements using algebraic equations. SimSmith has only one screen and allows the screen to be resized to increase workspace or readability.
[ Hits: 1299 | Votes: 4 | Rating: 4.75 ]
- SMCHR smit charts
- The Smith Chart program with its extensive Help files. Written in Visual C++ ver 1.5, it runs in Windows 3.1 and later by w9dmk
[ Hits: 951 | Votes: 2 | Rating: 2.00 ]
- A smarter version of the Smith Chart program. It allows you to dynamically generate impedance point plots as you configure each design element of an impedance matching network. Has an extensive Help file with a Wizard that tells you what steps to take in designing a matching network for a given load impedance. Complete Windows installation kit by w9dmk
[ Hits: 1900 | Votes: 7 | Rating: 1.43 ]
- XLZIZL by AC6LA
- XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.
[ Hits: 1383 | Votes: 2 | Rating: 1.50 ]
- Smith chart calculator
- linSmith is a Smith Charting program, mainly designed for educational use. It allows defining multiple load impedances (different frequencies), and adding components (discrete components and line sections) in series and parallel. It plots the impedances on the screen, shows the values in table format, and is able to generate publication quality Postscript output.
[ Hits: 3942 | Votes: 28 | Rating: 3.92 ]
- This graphics-intensive program reveals the load on the output of a matching-network, based on measurements of the components in that network. Adjust the network (tuner) for a flat input, measure or look up the network component values and you will immmediately see the R and jX values of the load on the network, presented as both a schematic with the component values and as a Smith Chart normalized to the specified system impedance.
[ Hits: 568 | Votes: 1 | Rating: 10.00 ]
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