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Technical Information Service


The ARRL Technical Information Service is the member's resource for technical problems -- understanding the fine points or getting tips for your projects.  Your membership dollars support a vast collection of technical material, including some of the best QST and QEX articles for free download.  We have ARRL field volunteers who can provide local assistance.  If the other resources still leave you perplexed, you can contact the lab staff for assistance with ham radio questions by mail, email or phone. Be sure to include your call sign or membership number with your inquiry.

Where to Look for Answers

How do I ...?

Radio Technology Topics--Technical pages on a variety of subjects you can read/download

Radio Frequency Interference (RFI)--The ARRL lab offers a wealth of resources in dealing with RFI.

Where did I see ...?

ARRL Periodicals Index Search - This database contains the QST index from 1915 to the present and the QEX index from 1981 to the present. Annual indexes can be downloaded from the archive by using the search terms "index volume"  December 2001 has the last printed index.

Downloadable PDF indexes are available for 2002 to 2012,

Digital QST from 2012 to the present is fully text searchable.

Where do I find ...?

How do they compare ...?

How TIS Can Help

Members can contact TIS at:

Non-members should contact TIS is pleased to help a new ham get started or help an old timer get back into ham radio but non-members will be asked to join the ARRL so we can continue to provide this valuable membership service. After solicitation, non-member inquiry will be promptly forwarded to the ARRL HQ TIS staff.


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