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狮子座流星雨快来了,流星余迹通讯谁有兴趣 [复制链接]

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离线BA5TT
 
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只看楼主 倒序阅读 0楼 发表于: 2013-11-10
一年一度的狮子座流星雨快来了,谁有兴趣流星余迹通讯?11月14日至21日。
Curiosity keeps leading us down new paths.
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只看该作者 1楼 发表于: 2013-11-10
Curiosity keeps leading us down new paths.
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只看该作者 2楼 发表于: 2013-11-10
几十年没看到流星了
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只看该作者 3楼 发表于: 2013-11-10
北京时间2013年11月18日凌晨00时19分,亚洲地区有望迎来一次“暴雨”级爆发,届时每小时将有300余颗流星划过天际,中国是这一奇观的最佳观测地点之一。
Curiosity keeps leading us down new paths.
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只看该作者 4楼 发表于: 2013-11-10
Meteors may come at any time, but sometimes they come in showers which can be predicted. During showers there are more meteors than usual and QSOs are easier to make. Most work on 144 MS is done during showers, where 144.300 may sound like 14 MHz in the bursts. A MS trail reflects 50MHz longer than 144, so it is easier to work MS on 50MHz. Actually you do not need to wait for a MS shower at all to make QSOs on Six.

Meteors on Six sound like brief enhancements of the signal you are listening for. Out of the noise pops your QSO partner at 59+ for mostly less than a second, but then he fades fast away again. Sometimes bursts are many seconds long and you may be lucky to make a QSO in one burst. But as ever on Six you have to be fast..

You should prepare yourself to make the QSO in small bits of mostly a few seconds.
Curiosity keeps leading us down new paths.
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只看该作者 5楼 发表于: 2013-11-10
I'm no pro, but I've been successful!

My previous setup was a 6el. Yagi (500 watts) on 6 meters, 18el. on 2 meters (200 watts min.) and 22el. on 432 Mhz (200 watts). Six meters is the band more commonly used for Meteor Scatter day or night where on 2 meters and 70cm late evenings to very early mornings is commonly used to run M.S. All though M.S. can be done running SSB/CW morse code would be the preferred mode.

The most commonly used mode to run M.S. and primary choice of mode is digital using K1JT software. JT65 and FSK441 is where you will benefit from the wonders of meteor trails. A web site called www.pingjockey.net will help you find who's active, where and how to schedule for a contact.

The software is free download and takes a little learning curve to set up ,but is really cool and fun. Just need a little patience till you get the hang of it.  

73!
N2RRA
August 13, 2012
Curiosity keeps leading us down new paths.
离线BA5TT
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只看该作者 6楼 发表于: 2013-11-10
WB2WIK

FSK441 etc are very good but sure take a long time to complete a contact.

I complete them much faster on SSB, if there are any good burns to work.  SSB MS QSO start-to-finish can take less than 30 seconds, and I don't bother with timing sequences if there are obvious burns to work (I don't think anyone else does, either).

I've also never found it particularly useful to aim the antenna anywhere other than where the other station is actually located.  Meteors fall everywhere, every day; during a "shower," there's just a lot more of them.  Either an ionized trail will occur along the desired path, or not, but you still have a "desired path."

Obviously, a lot of power and big antennas work better than less and not.  Even pretty narrow beams (in the 13-15 dB gain range, or above) illuminate a huge chunk of sky at distance.  I doubt I've ever "missed out" on an MS contact for having a beam that was "too big" (meaning, too narrow beamwidth).
Curiosity keeps leading us down new paths.
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只看该作者 7楼 发表于: 2013-11-10
N4KZ

I spent a number of years chasing MS on 2m SSB. Lots and lots of fun. Most pings very short on 2m but occasionally you would get a Blue Whizzer where the trail would last 1-2 minutes. I remember working a Vermont station on a sked when a Blue Whizzer crossed our path and suddenly we went from getting occasional pings to a path that lasted so long we ran out of things to say. We signed clear and two more guys who'd been listening jumped him and they both worked Vermont too -- all three of us on one meteor.  

Now, most of this on 2m has gone over to WSJT, which works very well but I think takes some of the sport out of it because the computer is doing practically all of the work. But you will make contacts and probably more of them and without going hoarse like I used to. But on 6m, the meteor reflections last MUCH longer and you can easily make QSOs on SSB.
Curiosity keeps leading us down new paths.
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只看该作者 8楼 发表于: 2013-11-10
Curiosity keeps leading us down new paths.
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只看该作者 9楼 发表于: 2013-11-10
打算在几米工作?
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只看该作者 10楼 发表于: 2013-11-11
6m。弱信号用WSJT的PSK441模式,强信号用SSB。
Curiosity keeps leading us down new paths.
离线BG5TOX
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只看该作者 11楼 发表于: 2013-11-11
回 BA5TT 的帖子
BA5TT:6m。弱信号用WSJT的PSK441模式,强信号用SSB。 (2013-11-11 00:00) 

GP还是YAGI?
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只看该作者 12楼 发表于: 2013-11-11
回 BG5TOX 的帖子
BG5TOX:GP还是YAGI? (2013-11-11 02:09) 

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只看该作者 13楼 发表于: 2013-11-17
需要做什么准备希望也有所介绍大家好试一试也可以给新手介绍啊
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