Attila,
On 04/26/2014 12:52 PM, Attila Kinali wrote:
On Sat, 26 Apr 2014 12:25:11 +0200
Magnus Danielson <mag...@rubidium.dyndns.org> wrote:
If you have a passive antenna, put a LNA right at the antenna, since any
cable damping will cause the S/N to go down. Also, if you put an
aditional amplifier in line, your want that too up at the antenna.
Then, low-loss cable should be natural.
My current antenna is an cheap patch antenna. It has an LNA, but aparently
it's not enough. I talked with a few gnuradio people and they basically
told me that the GNSS-SDR software needs a strong signal for acquisition.
Ie. i realy need to put the antenna somewhere with good skyview.
I ordered 4 of those lna4all, so that problem should be solved.
I'm also getting a better antenna and we'll see how much signal i can
get out of this place.
I'm just about to put my double-frequency choke-ring antenna on the top
of the antenna-pole, with support-lines, and then LMR-400 cables to go
into the lab/shaft/mancave.
I hope that will beat the old setup.
I intend to rebuild one of my single-frequency antennas with a new
element and suitable LNAs, and the lna4all looks very interesting.
Cheers,
Magnus
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
