啊哈,国际空间站(ISS)又要下传SSTV图像了
ISS下传的SSTV图像使用的发射机功率有25W,普通的业余无线电卫星是毫瓦级别,和ISS相差甚远啊,所以ISS的SSTV使用普通的手台天线就可以接收了,如果想要图片质量好还是上八木,嘻嘻。
ISS的SSTV是让业余无线电萌新入门卫星通联的试炼好机会,学会调整VHF多普勒频移。
这回活动时间和最新的星历我都会放在文章里。


根据amsat-uk官方网站消息,国际空间站在GMT12月24日16:40开始下传SSTV图像,本次活动一直持续到GMT12月31日18:15结束。会使用PD120模式进行图像下传。

多普勒频移调整:图像将以145.800 MHz FM +/- 3 kHz多普勒频移传输

原文:

An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space Station (ISS) for December 24-31.

This will be a special SSTV event to celebrate the 20th anniversary of ARISS operations on the ISS.

The event is scheduled to begin on December 24 from 16:40 GMT and continue until December 31 ending at 18:15 GMT. Dates and times subject to change due to ISS operational adjustments.

Images will be transmitted on 145.800 MHz FM +/- 3 kHz Doppler shift and the expected SSTV mode of operation is PD 120.

If your radio has selectable FM filters then for best results try selecting the wider filter designed for 25 kHz channel spacing.


ISS(国际空间站)TLE:

ISS (ZARYA)             
1 25544U 98067A   20359.39080515  .00002008  00000-0  44241-4 0  9999
2 25544  51.6443 127.3397 0001485 155.7981 272.4324 15.49223493261501

ISS活动链接:

ARISS SSTV Blog

Post and view images on the ARISS SSTV Gallery

ARISS SSTV Award: After your image is posted at the gallery, you can acquire a special award by linking to https://ariss.pzk.org.pl/sstv/ and follow directions for submitting a digital copy of your received image.

ISS SSTV info and links


查询当前GMT时间:time.is

Last modification:December 24th, 2020 at 10:12 pm
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