Doesn't suit? No problem! You can return within 30 days
You won't go wrong with a gift voucher. The gift recipient can choose anything from our offer.
30-day return policy
This text defines small-aperture radio direction-finding (DF) and identifies its unique niche in the passive radiolocation discipline. The book provides a discussion of the functional elements of radio DF and a definition of small-aperture DF based on linear wavelength criteria.