"1958年1月31日是美国第一颗人造卫星 explorer i发射升空的日子，从此美国进入了太空时代。今年 1月31日是explorer i 升空五十週年纪念日。为庆祝这一日的到来，喷气推进实验室 (jpl) 的业余无线电俱乐部将从1月28日太平洋标准时间上午 8:00 (utc 时间 1600) 到2月3日下午8:00 (utc 时间 2 月 4 日 0400)，启动电台 w6vio 进行广播，使用的频率包括：3535，7035，7185，14035，14240，21035，21285。 对每位成功接收并寄回收听报告的火腿，jpl 业余无线电俱乐部都将会寄送一份为此特制的 qsl卡。"
http://it.solidot.org/article.pl?sid=08/01/18/0857230&from=rsshams invited to dial in explorer 1 celebration
explorer i marked the dawn of the space age for the united states as well as the beginning of the jet propulsion lab’s exploration of space. to celebrate the 50th anniversary of this momentous event the jpl amateur radio club will be operating station w6vio from 8 a.m. pst (1600 utc) on monday, january 28th, thru 8 p.m. pst on sunday feb. 3 (0400 utc february 4th) using the following frequencies: 3535, 7035, 7185, 14035, 14240, 21035, 21285.
for each confirmed conversation jpl amateur radio club plans to make available a commemorative explorer 1 qsl card (postcard that serves as a confirmation of communication).
http://www.jpl.nasa.gov/explorer/media/ham.php
