[SFDXA] This should be an interesting topic of discussion I bet in Dayton

[Kai]

The P5 saga evokes an old tale about an exothermal model of hell, like in
    "it will be a cold day in hell before W4 and P5 link up on HF".
An Earth-Mars link, on the other hand, is quite feasible with current ham 
technology.
The path loss varies between 233.5 and 247.2 dB one-way at 145 MHz with a
one-way path time delay of 4.3 to 21 minutes; depending on the relative orbital
positions of Earth and Mars.

The link is doable with a  JT65-like mode tailored for the delay, 100 W and
40 dBi of total antenna gain between the two ends would do it at the max distance,
with 14 dB less gain needed at the minimum distance.

73,
Kai




On 4/22/2013 9:24 AM, The Romagni's wrote:
> I think there are more chances to land someone in Mars than having an
> operation at P5! specially how thing are at the moment.
>
>
> On Sun, Apr 21, 2013 at 10:47 PM, Dave Novoa W4DN<dnovoa at bellsouth.net>wrote:
>
>> Steve, do you think it's going to happen?  Is North Korea going to let a
>> bunch of Americans and other westerners to set up radio transmitters and
>> say. i.e,  Whiskey Four Delta Alpha Tango, Five Nine?
>> Or to speak  to people in other countries in a slang that they do not
>> understand, or worse, send Morse code messages from NK?  I don't think is
>> going to happen, at least at this time.  Tensions are very high in the
>> area, specially between them and us. I wish it happens, P5 is one of the 5
>> I need.
>> CU @ Dayton?
>> 73s,
>> Dave
>>
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