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Author Topic: Weather fax.  (Read 1511 times)

Offline Al.

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Weather fax.
« on: March 08, 2014, 2221 UTC »
I'm running a Yaesu vr 5000 with a D-303 antenna link via irig to Apple ipad, but the resulting weather faxs retrieved are just not up to any useable standard.

Does anyone else retrieve weather faxes via an ipad.

Offline ChrisSmolinski

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Re: Weather fax.
« Reply #1 on: March 08, 2014, 2229 UTC »
There's a few important tips for getting good quality faxes:
You need to have a good signal without interference
Make sure it is correctly tuned in (the right frequency) in USB mode
Check your audio levels into the iPad

Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop

Offline Al.

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Re: Weather fax.
« Reply #2 on: March 09, 2014, 1117 UTC »
There's a few important tips for getting good quality faxes:
You need to have a good signal without interference
Make sure it is correctly tuned in (the right frequency) in USB mode
Check your audio levels into the iPad



Thanks for the reply, i'm using your software, and so far its going 50/50. talking about sound input levels, how high should the blue bar travel. It would be kool if you set up the next ipad version with say, red for when input is to high ?

I can get way better results down on LSB than USB, but the the faxes are in Black.. Possibly my issue come from using the D-303 as it a multi antenna, and maybe I would benefit from a more fixed SW antenna.

3 weeks before I move onto my boat (27 foot so not big), and start traveling. so I still have a bit of time to play.

Offline ChrisSmolinski

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Re: Weather fax.
« Reply #3 on: March 09, 2014, 1600 UTC »
If you listen in LSB, the audio spectrum will be inverted, that is why the faxes are black.

I would aim for the audio level being about 75% of full scale.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop