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Old 19-07-2010, 09:50   #76
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here are the frequency allocations for the ham bands by class:

Graphical Frequency Allocations

and this website is usually pretty good for net times and other broadcast schedules:

Pactor-II/III Radio Modem sales/support, FCC License filing, Marine SSB & HAM Radio Net schedules/frequencies.
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Old 19-07-2010, 10:41   #77
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kb - yes, I had that graphic chart. Didn't quite understand it all though. Looking for something more akin to this: WW Frequency allocation links by dxzone.com

or this: http://bandplans.com/index.php?band=All

but easier to read and find on the road offshore
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Old 19-07-2010, 11:46   #78
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guess i'm not sure what you're looking for... the ARRL chart seems like a fairly self explanatory delineation of the frequency allocation for amateur use. the band plans are a voluntary set of agreed upon uses for subsets of those total FCC frequency allocations - here's a good link to the band plans for the US by region (there is no global band plan):

IARUWeb:

there's no legal requirement that you follow these - it's just common courtesy. on the high seas, i'm not even sure a band plan exists (if anyone else can help me out on that one, i'd appreciate it), so i'm not sure you have to worry about it much.

couple that with the maritime SSB frequencies:

SSB Simplex Channels

the wefax schedules:

Weather-FAX & SSB

the voice weather:

SSB Voice Weather

the net schedules:

Net / SSB Frequencies

and the commercial broadcasts:

Shortware radio broadcast schedules.

and you should know where to tune your dial at any given time...

sorry if that's not what you're getting at, but that's a pretty comprehensive list of the schedules that i've printed for the boat and have found useful.
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Old 19-07-2010, 12:00   #79
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Yes thanks for the links. Its helpful to know what these detail band plans are so you can have a specific idea of what frequencies to tune into to communicate and a reasonable idea of what the best times are. The general diagram are too high level nad won't ftell you the specifics.
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Old 17-09-2010, 20:28   #80
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Yippie - passed my tech and general licenses tonight.
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Old 17-09-2010, 20:30   #81
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Yippie - passed my tech and general licenses tonight.
Congratulations! Welcome to the wonderful world of ham radio.

What's your call sign?

Bill
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Old 17-09-2010, 20:43   #82
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None yet. Takes FCC up to 10 days to get it in database Thanks!
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Old 17-09-2010, 20:47   #83
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Congratulations! I believe you will get a lot of use with it...

Michael
K9YE
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Old 17-09-2010, 23:32   #84
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SSB/Pactor

Great Thread. Re SSB/Pactor and e-mails , Can you send/recieve pictures?

Clyde
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Old 17-09-2010, 23:40   #85
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Hf email is excruciatingly slow especially if you can't connect at Pactor 3 speeds. Downloading grib files typically took 20 minutes and as long as 40 minutes. So yes, you can down load photos but you will grow a beard waiting for it to finish. Winlink is really only useful for email and Grib files. Might be better if propagation was good enough for Pactor 3 fast mode but it seldom was on my recent TransPac. Did manage to keep up a twice daily email contact with my wife which eased her mind.
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Old 18-09-2010, 00:12   #86
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Downloading grib files typically took 20 minutes and as long as 40 minutes.
Golly. I don't think I've ever had an SSB/Pactor e-mail session go that long, much less one message with gribs attached. How large an area are getting gribs for? I usually get about 15 deg lat & long on 1 deg centers for 5 days.
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Old 18-09-2010, 00:26   #87
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It was a TransPac, SF to Hilo.
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Old 18-09-2010, 00:27   #88
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c) There are also separate, dedicated We-Fax units (radio receiver built-in to We-Fax unit) which print out weather charts and sat photos.....
They're pricey, but VERY hi-quality......
(And, yes I use this method for most of my hi-seas weather data / forecasts.....)
Awesome post!

I am kind of a Ham newbie and I have yet to take my Ham exam but will be doing both Tech and General very soon.

I am really interested in Sat Com and ran across a few packages for Marine NOAA sat reception and they were around $2,000. Which included Software and a Helix Antenna.

I always thought that you needed a steady hand and a Yagi directional antenna for Sat Com to really shine so never considered that it work on a boat.

Now that the newer NOAA sats contain more data than just an Image, wouldnt it be possible just to use wxImg and a decent Helix antenna to get the very latest of data? Including Surface Temp, Wind, Pressure and of course that great image.

Is it possible to make contact with Ham Sats while at sea as well? Or is it more viable to stick with the (V)HF bands for long distance CQing instead? (6 meter, SSB etc)

God I wish I got into radio earlier, what a neat hobby.
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Old 18-09-2010, 01:52   #89
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It was a TransPac, SF to Hilo.
Hmm. I just downloaded a set of gribs that covers all of the US West Coast and across the Pacific to Hawai'i. The file was only 10k, and shouldn't take more than 5 to 8 minutes even over a P2 connect.

Just sayin'

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I am really interested in Sat Com and ran across a few packages for Marine NOAA sat reception and they were around $2,000. Which included Software and a Helix Antenna.
You should be able to put something together for less than that. Start here: Receiving weather satellite images .

Ham satellites are all LEOs to my knowledge and tracking them from a moving platform is hard. Look at the expense of the satellite TV antennae just to deal with platform motion aiming at a geostationary bird -- tracking a fast-moving LEO is an even bigger job.

There are some ham satellites that can be effective using an omnidirectional antenna; you can hit the International Space Station also when they are on.

That said, if you just want someone to talk to HF works great - I generally use 40m and 20m ham and 8 MHz marine.
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Old 18-09-2010, 04:14   #90
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All band receiver

I wasn't able to quote it - but Evans refers to a "Sony All Band" receiver in the first page of this thread - does anybody have any idea what he is referring to? A link to a product?

Are we talking about something that can be used to receive weatherfax transmissions (and plug into a computer etc for imaging etc?) Or is this just so Evans can listen to the news?

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Originally Posted by estarzinger View Post
We think the iridium is a very useful piece of kit, obviously for getting e-mails and gribs; but also for staying in touch with our families and in an emergency it is generally more useful than an epirb (or an SSB).
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