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Great L-Band Performance
Posted: Thu Jan 07, 2016 10:20 am
by retux
The performance of the SDRPlay in the L-Band is just simply astonishing!
Received pretty strong iridium signals with an omnidirectional antenna (GPS-QFH)
Re: Great L-Band Performance
Posted: Tue Jan 12, 2016 1:09 am
by K2TL
Can you post some info regarding your antenna? I would like to build or buy one. Do you have a source?
Thanks
Re: Great L-Band Performance
Posted: Tue Jan 12, 2016 3:12 pm
by micked
I guess he is using a Vaisala RS92 weather sonde, they send them up all around the world a couple times a day and is just to track and go get them when they fall back down, google Radiosonde. I have moded one to, not tested yet tho.
Re: Great L-Band Performance
Posted: Wed Jan 13, 2016 12:04 pm
by retux
Yes, your guess is exactly right. Although I don't use the electronics of the weather sonde. I just cut the PCB and soldered on a sami rigid coax with SMA connector:
- IMG_3183.JPG (85.67 KiB) Viewed 25215 times
You could try to build a QFH by yourself but i suppose it might be a little bit difficult because of the small size.
On the SDRPlay page on Facebook Paul Jones posted a design for a vivaldi-antenna. This type of antenna might be easier to build. Just remember that vivaldi antennas are directional.
Re: Great L-Band Performance
Posted: Sun Jan 17, 2016 2:59 am
by K2TL
Thanks. I have seen Radiosonde on eBay. Maybe i will pck one up if the price is right.
Re: Great L-Band Performance
Posted: Fri Jan 29, 2016 4:45 am
by NN4F
Great Idea to get for the antenna, $20.00 on ebay, can't go wrong there....
Paul - NN4F
Re: Great L-Band Performance
Posted: Sat Jan 30, 2016 5:35 pm
by 0815
Hi,
nice setup, how do you mount the antenna - are you using a dish or do you mount it on a stand and point it to the satellite.
i am asking because i am using the following equipment:
Logper antenna:
LNA4all:
60 cm Offset Dish:
SDRplay
This setup works more or less but SNR is max @16db which is pretty bad, irdidum is much more worse....
So maybe you have a pic for me of your setup - thanks