Wireless Microphone Systems Research Articles

Parental responses to sibling conflict: the effects of development and parent gender.

Mothers' and fathers' responses to their children's spontaneous sibling conflicts were observed using a wireless microphone system. Eighty-eight two-child, two-parent families participated in three home observations. Secondborn children were 3 to 5 years of age and firstborn children were 2 to 4 years older. Associations between parents' enactment of three categories of conflict management strategies (passive nonintervention, child-centered management, and parental control) and sibling interaction quality varied according to children's ages, gender of the monitoring parent, and type of strategy used. Passive nonintervention was highly associated with the occurrence of subsequent conflict. Younger sibling dyads, in particular, behaved more antagonistically when their parents did not intervene. In contrast, older sibling dyads were less involved and less close when their mothers intervened in any way. Results suggest that relatively younger sibling dyads may benefit more than older dyads from parental intervention.

The "Vagabond" wireless microphone system

A cable-less microphone system has been developed, Designed for general public address use, the system utilizes inductioncoupling between the transmitter and receiver, and requires no license. The subminiature transmitter is completely contained in a stick type microphone housing. It consists of a microphone, a five-tube, printed circuit frequency-modulated transmitter, a self-contained antenna inductor, and batteries, and weighs less than one pound. The system gives excellent performance with operating areas up to 5000 square feet. The development of the system and of the subminiature transmitter is discussed and the performance of the induction system is evaluated.