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.
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