Lux, Jim (337C) wrote:
On 8/15/09 3:25 PM, "Chuck Harris" <[email protected]> wrote:
Lux, Jim (337C) wrote:
On 8/15/09 8:27 AM, "Magnus Danielson" <[email protected]> wrote:
If you're near a harbor with fishing boats, you'll see plenty of quad
helices about a half a meter in overall height, used for VHF Weather
satellite reception. They're also used on spacecraft (Mars Science Lander,
Mars Reconnaissance Orbiter, and Phoenix all have UHF quad helix antennas,
I
think, for about 400 MHz)
Not used by the fishing vesels near me...
Really? Practically all the fishing boats (mostly squid) boats going out
from Ventura Harbor (in Southern California) have big ol' quad helix
antennas up on the cross bar (as well as the usual HF SSB and VHF whips and
the radar). Maybe it's a regional preference thing (or folks are going to
the 1.6 GHz band or something).
Haven't all of the VHF weather satellites been decommissioned?
Could be. I suspect that those antennas have been up on those boats for
decades.
I think this explains fairly well why I haven't seen them. VHF weather
satellite reception has not been necessary for most fishing vesels on
the Baltic sea, especially those doing near coast fishing. National
weather services have sufficed for many decades, and before that looking
out the window and a barometer did alot anyway for the fishermens I know.
Cheers,
Magnus
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