FreeDV on Thursday!!

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Re: FreeDV on Thursday!!

Postby VK2ZIW » Thu May 12, 2016 6:23 pm

It's 6:25 and nobody heard here in Emu Plains
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Re: FreeDV on Thursday!!

Postby VK2EIK » Thu May 12, 2016 6:31 pm

vk2eik has been talking to vk3rv
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Re: FreeDV on Thursday!!

Postby VK2ZIW » Thu May 12, 2016 6:34 pm

We have myself and Hil VK2IUW transmitting now...
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Re: FreeDV on Thursday!!

Postby VK2EIK » Thu May 12, 2016 6:36 pm

Faintest of sigs but nothing decoding
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Re: FreeDV on Thursday!!

Postby VK2DUX » Thu May 12, 2016 6:52 pm

Gee a pretty bleak night sig wise this end, hi hi. Had a good QSO with Peter VK3RV ear;y on but after that nothing heard, and yes I did call cq quite a bit.

Guys FreeDV is not a good weak sig mode in my experience. I seem to need a sig well above the noise floor in order for me to copy. If the other station is above 4 on my SNR then I can decode 100%, below that the audio sounds like talking into a tin can with a piece of string, underwater LOL. Still all part of the fun.

So I will give it one more try next thursday, failing that I shall put FreeDV back in it's box in my shack.

de john vk2dux
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Re: FreeDV on Thursday!!

Postby VK2AZ » Thu May 12, 2016 7:00 pm

Would have to agree John.
Can't hear a single station at the moment anywhere on 40m.
Had a QSO with Alan VK2ZIW who is only 6K from me :-)

Hilary
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Hilary - VK2AZ
Glenmore Park NSW
QF56IF31
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Re: FreeDV on Thursday!!

Postby VK2DUX » Thu May 12, 2016 7:06 pm

Hi;lary VK2IUW, 6km? I am impressed LOL. Seriously before tonight I have been working VK3, 4, 5, and 7 with reasonably sig quality, enough to have a qso with a bit of effort and reading between the lines. FreeDV is never going to be a replacement for SSB in it's present format, but a bit of fun can be had.

john vk2dux
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Re: FreeDV on Thursday!!

Postby VK5RM » Fri May 13, 2016 8:44 am

No stations heard last night at all.

Called lots too...Maybe next week.

73 all de Phil VK5RM
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Re: FreeDV on Thursday!!

Postby VK2BLS » Sat May 14, 2016 5:32 pm

Last Thursday was hopeless here too, 40M heaps better tonight, vk3chn coming back nicely, go figure.

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Re: FreeDV on Thursday!!

Postby VK2DUX » Thu May 19, 2016 4:04 pm

Ok guys, well our final night of FreeDV, well with me leading the charge anyway LOL. From 6pm EST this evening on 7.1770 LSB, 1600 mode.
de john vk2dux
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Re: FreeDV on Thursday!!

Postby VK2DUX » Thu May 19, 2016 7:09 pm

Well that was quite a roll up tonight. I had qso's with VK5RM, VK7DIK, VK3CCR, VK3RV, and VK5ST. I know that VK7MA, VK4LHD, and VK2BLSW were also listening as well. I would just like to thank everyone that turned up this evening and in previous weeks. I think we all agree that communicating via FreeDV can be very challenging to say the least. This shall be my final evening of promoting this mode on a Thursday night.

de john vk2dux

p.s. it was fun!!
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Re: FreeDV on Thursday!!

Postby VK4LHD » Fri May 20, 2016 6:04 am

Tonight was the first time I ever looked at free DV and with the signals so low I didn't really get a good evaluation of the mode but when the conditions came good even for the brief period of a few seconds it actually sounded good and even my deaf ears could pick out what was being said even if it was just a couple of words here and there. My HF station is not real great with only basic wire dipoles just above the roof of the house so I won't hear or be heard too well.
I will trying it again next week and see how I go but it is setup in RX only for now as the computer mic I have is not great.

Robert
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Re: FreeDV on Thursday!!

Postby VK2ZIW » Tue Dec 11, 2018 5:44 am

Hi all,

I've modified David's FreeBeacon code to be a repeater, store and retransmit.
I started in mid July 2018 but had problems with the Linux system crashing, running only a few hours.
(now fixed, Nov '18)

The Thursday nights on 7177 have obviously died out as I received nothing, nothing except the Sunday,
after broadcast VK3 and VK5 chit-chat.
Recordings available at:
www.unixservice.com.au/parrot

Anyway, it being Summer, it is running on 14.153MHz USB mode 700D, put my callsign in the text to trigger a repeat.

Is there ANY interest?

Great to find this VKLOGGER forum back up.

Alan VK2ZIW
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Re: FreeDV on Thursday!!

Postby VK2ZIW » Sun Mar 17, 2019 6:23 am

Summer is over, so back on 7177 KHz LSB

Example activity:

bytes date, time, file
960 Feb 22 20:21 7177/2019-02-22-17_20_53_to_radio.700C
1280 Feb 22 20:25 7177/2019-02-22-17_24_56_to_radio.700C

Nothing since.

These files are the Codec2 700C data format. The decoded (.WAV) files are on:

www.unixservice.com.au/parrot

Alan VK2ZIW
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Re: FreeDV on Thursday!!

Postby VK2ZIW » Sun Mar 17, 2019 6:33 am

Looking for a portable solution:

Have a look at "SmallDV", an implementation for a Pi with one audio USB dongle.
Note, ONE audio dongle with mono mic input so audio switching needs to be done externally, a relay.

I've found an available stereo mic input dongle, the Creative Sound Blaster Play! 3

So I "hacked" the above code, available at:
www.unixservice.com.au/parrot

Alan VK2ZIW
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