73 Magazine

World Radio Online

HamMag

Flying Pigs Bacon Bits

73 Magazine

No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today.
73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It is now available online for all to reach at archive.org.

This collection is available from the non-profit Internet Archive:
73 Magazine at Internet Archive

Beckhoff Sistema Library Free [new] [Top 100 Deluxe]

, and diagnostic coverage—for Beckhoff TwinSAFE components. Instead of manually entering technical data from catalogs, users can import this library to "drag and drop" components directly into their safety calculations, significantly reducing errors.

Identify the Beckhoff components used (e.g., EL1904 safe input terminal or EL6910 TwinSAFE Logic).

Beckhoff provides these libraries at no cost through their official support and download channels. beckhoff sistema library free

Navigate to your extracted Beckhoff file to add it to your permanent repository. : Create a new project or safety function (SF) in SISTEMA.

: Simplifies verification of ISO 13849-1 standards for machine safety. , and diagnostic coverage—for Beckhoff TwinSAFE components

Go to the "Library" menu and select "Local library" or "Import".

Use the Download Finder and search for "SISTEMA" to access updated version lists and documentation. Beckhoff provides these libraries at no cost through

The library contains essential safety-related reliability values—such as MTTFdcap M cap T cap T cap F sub d B10dcap B sub 10 d end-sub

Drag these from the library into your project to automatically populate the performance level (PL) and reliability data.

HamMag

HamMag is another now-defunct free publication. Produced in Europe, this was a very grass-roots publication that had a wide range of topics and columns.

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All files:	HamMag.zip 38 Mb

Flying Pigs QRP Newsletters

The Flying Pigs QRP Club, International is a laid-back, fun loving group of QRP enthusiasts. Over several years the FPQRP "Bacon Bits" Newsletter was published in PDF format.

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2010	Jan 2010