                For immediate release

For sales information, contact Lisa Tardette, 203-666-1541
For other information, contact ARRL Technical Information Service, 203-666-1541

Introduction to Radio Frequency Design, the ARRL Edition, 
by Wes Hayward, W7ZOI

In Introduction to Radio Frequency Design, W7ZOI presents a fundamental
treatment of the basic concepts used in Radio Frequency Circuits. 
Mathematics are used freely, as needed to develop the subject. (A background
in calculus and differential equations is required for the reader.) Simple
circuit models are used whenever possible, preparing the reader to actually
design HF, VHF and UHF equipment. A disk is included with the book containing
a collection of programs for the IBM PC and "compatibles," the programs were
generally developed to go with the text. 

In this practical book, the author

  Emphasizes the use of simple mathematical models and their application to
    both linear and nonlinear circuits. 
  Reviews traditional materiel, stressing the viewpoints taken by the r.f.
    Designer and advanced radio amateur. 
  Illustrates the subject material with numeric examples.
  Discusses oscillator design including the basics of oscillator noise,
    starting conditions, and limiting mechanisms. 
  Reviews two port network methods as they apply to the design of amplifiers,
    filters, and oscillators. 
  Presents the fundamentals and application of the Smith Chart.
  Presents the basics of S-Parameters.
  Presents r.f. system design with a communications receiver as an example.
  Presents structured equation sets to aid the reader in writing programs for
    a small computer or calculator. 

The computer programs include:

  Design of L. C. low pass and high pass filters.
  Design of L.C. and crystal bandpass filters.
  Analysis of ladder filters of all types for gain, phase, group delay and
    impedance match. 
  Analysis of mixer spurious responses.
  Analysis of r.f. systems for cascaded noise figure, intercepts, and dynamic
    range. 
  Impedance matching.
  Padded tuned circuits.
  Phase-locked loop design.
  Feedback amplifier design with bipolar transistors.
  Toroid and solenoid coil construction.
  An impedance matching tutorial using the Smith Chart.
 
This reprint of a 10 year old "timeless" book is available from the American
Radio Relay League, 225 Main Street, Newington  CT  06111, USA. Introduction
to Radio Frequency Design retails for $30.00 (shipping & handling $4.00 for
mail, $5.00 for UPS).  The order number is 4920. ARRL first edition 1994. 


