Radio by Hatzala on the Sabbath

Igros Moshe (O.C. IV #81): Question Hatzala using walkie talkie on Shabbos? Answer The question posed to me concerns the wearing of a radio by members of the Hatzolah organization. If they could not wear the radio and be in contact with the central office while away from home, it would necessitate their staying in their apartments with a radio receiver turned on waiting for a call for their services. Not to be able to leave home on the Sabbath would be surely a great burden and would reduce the number of volunteers so necessary for the proper functioning of this organization. The Talmudic discussion in tractate Shabbos [63a] makes it clear that an object can be classified as an ornament even though it does not serve the usual function of clothing, namely, to protect the body from the elements. The controversy recorded there concerns a soldier wearing his sword or carrying his bow, and involves the aesthetic evaluation of these items. If they are regarded as a sign of his status and importance as a defender of society, he may wear it on the Sabbath. If, however, it is a degrading symbol of his association with killing and warfare, then he may not. Clearly, if the item under discussion has no negative connotations, it can be considered an accessory to clothing, even though it may not be made of anything more than base metal. The Hatzolah beeper certainly does not signify an individual involved in a degrading activity. On the contrary, it identifies someone who is waiting to serve his fellow man in time of need. Although there is a controversy in the Talmud as to whether weapons will be needed during the Messianic era, and those who believe they will not be needed (for there will be no wars) do not look upon the sword as a symbol that gives honor and importance to the wearer, this does not apply to a beeper. Even if we accept the opinion of Rebbe Eliezer that there will be no illness in the Messianic era, and hence there will be no need for the Hatzolah organization, this in no way casts aspersions on the social approval accorded those who wear the beeper because of their great mitzvah work. There are no negative connotations to the wearing of the beeper as there may be to the wearing of a sword. In my opinion, therefore, it is permissible to wear a beeper on the Sabbath. They may leave their homes with it attached to their belts, so that they may respond quickly to a call from someone in need. It would be too burdensome to expect these people to stay at home waiting for the call to come, and as I have said, this would surely reduce the number of volunteers for this important work. Someone has suggested that the Sabbath work should be done by hiring non-Jews to serve as Hatzolah members. This contravenes the halachah that says that activities should be performed only by Jews and not by non-Jews, even when a non-Jew is readily available. In addition, a staff which works for money cannot be expected to respond with the same alacrity, the same devotion as those who do it in order to perform the great mitzvah of .