The LARG Amateur Radio Projects Over
the past several years, our Radio Group and its members have undertaken many amateur radio construction projects. We will record for history and hopefully for future members how these were designed, built, tested and used. Where possible we will include the characteristics and how well they performed.
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FLDIGI Platform Comparison - Click Here Compraing FLDIGI on Odroid U2, Raspberry Pi and Raspberry Pi 2.- W5ODJ. |
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Android Amateur Radio Applications - Click Here Inotative Android Programming for Amateur Radio Applications including downloadable "Ham Finder" Application. Never be lost again and log your counties by Ben Pearson - KD7UIY. |
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Motorized Winch for TX-472 Tower - Click Here |
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FEM (finite element modeling) Analysis - Click Here In the presence of forces and other "constraints," FEM analysis for structures allows one to assess the compressive and tensile forces throughout the article of interest. A system of simultaneous equations, governed by specific constraints, is solved and in so doing, the distribution of forces and the accompanying outcome can be determined. Enginering Paper by Jeff Crawford, K0ZR. |
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Receiver Test Data by Sherwood Engineering Inc. - Click Here Grade Your Equipment |
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AB-577 Antenna Mast This mast is used on many emergency and public service communicaions operation by the Loudoun Amateur Radio Group. |
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Operator's Manual for AB-577 Antenna Mast |
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Local Repeater Service Call Several members of the Loudoun Amateur Radio Group routinely assists local repeater owners and operators. |
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Earth-Moon-Earth Communications Presentations & Projects By The LARG EME Operators |
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Digital
Modes Presentations & Projects By The LARG Digital Operators |
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Digital
Modes Power Point Presentation |
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HF Digital Mode Go Kit by John Westerman, W5ODJ, |
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Loudoun Amateur Radio Group Equipment Sale And Exchange The LARG And Members Post Their Excess Stuff |
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The W4SSN Equipment Sale |
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"Taming A Hot Brick" By Paul Bock - K4MSG de Hamilton, Virginia The Following Three Articles By Paul Bock Provide Insight Into Cooling VHF-UHF Amplifiers |
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Taming A Hot Brick For Meteor Burst Communications |
Follow-Up Notes To "Taming A Hot Brick" |
2nd Follow-Up On "Taming A Hot Brick" |
Vibroplex Bugs Reports by Paul Bock - K4MSG |
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Some Bug Stuff | History Notes On Vibroplex | On Identifying and Dating Vibroplex "Bugs" |
Renovating KD4CSO's 1943 Vibroplex "Original" Bug | Codes Used in Early Wireless Telegraphy | |
Vintage Stations Of Paul Bock - K4MSG |
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Experiencing the Past: The Magic of "Boatanchors" with Drake | ||
Paul's Station Circa 1950 | Paul's Station Circa 1998 | Paul's Station Circa 2006 |
Hallicrafters SX-42 Receiver | Paul's DRAKE Station - Vintage Stuff | A Pair of Vintage HF Stations |
Other Unique Radio Projects and Articles |
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Spi-Ro T-40 Traps in a Multiband Dipole By Paul Bock - K4MSG of Hamilton, Virginia | ||
Repairing Unadilla (W2VS) 40m Antenna Traps By Paul Bock - K4MSG of Hamilton, Virginia | ||
Amazing 75-Meter Hustler Dipole At AI1V | ||
LARG Assists New England Historical Radio Society with Transmitter Procurement for Maritime Coast Station WNE | ||
Bringing
An Old Pro Back To Life - The LARG's Kenwood TS-930 Club HF Transceiver by Rick Miller - AI1V |
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VHF - UHF Antenna Stacking Antenna Article By William B. Seabreeze, W3IY (SK) Edited and Posted by Paul Bock, K4MSG, Hamilton, Virginia on May 14, 2011 |
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Review of a Gulf Alpha 8-element 432 MHz Yagi Prototype Antenna by Paul Bock - K4MSG |
Review Of TE System 1412G 2-Meter Power Amplifier by Paul Bock - K4MSG |
Tech Notes Of Interest On Our Many Projects and Operations |
8-Element 432 Quagi by Paul Bock - K4MSG |
Where To Get Stuff by Tom Dawson - WB3AKD |
SWR and Wattmeter Kit by Norm Styer - AI2C |
Multiband HF Antennas by KD5CTJ, K4MSG, K8SYH es NC4S |
Windom Antenna - Revisited by Bill Buchholz - K8SYH |
Hot Battery Swap Circuit by Pete McNeil - KF4HCW |
EMI of High Efficiency
Bulbs by Tom Dawson - WB3AKD Light Them Up - Click Here |
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Battery Charging Station by Norm Styer - AI2C Keep Them Up - Click Here |
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