MARS?
 

Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.

Greg

"Greg" wrote:
Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.

I hear the MARS nets most often between 4.0 and 4.1 MHz mornings and
evenings.

Art N2AH

Very timely request -- as from the ARRL is:

To celebrate the 54th US Armed Forces Day, the Army, Air Force, Navy, Marine
Corps and Coast Guard are cosponsoring the annual Military/Amateur Radio
communications tests on Saturday May 8. While Armed Forces Day is May 15,
the Armed Forces Day on-air special event will take place a week earlier to
avoid conflicting with Hamvention 2004, May 14-16. The event features
military-to-amateur crossband voice operations and a digital message
receiving test, with the text of the message prepared by US Secretary of
Defense Donald Rumsfeld. URL:
http://www.arrl.org/news/stories/2004/04/15/1/

For frequencies & locations -- see URL:
http://www.arrl.org/news/stories/200.../ssb-sked.html
--
el lector se guarda

Amateur Radio is the best back-up
communications system in the world,
and that's the way it is. Walter Cronkite
---------------------------------------------------------

"Greg" wrote in message
...
Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.

Greg

"Greg" wrote in message
...
Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.



I'm pretty sure all the MARS stations here in S. Korea are gone. The reason
being that it's easier for the GI's to just use the phone. Most of them buy
cheap cell phones, and buy phone cards. We can actually call stateside from
here cheaper than most of you can call the next state (the card I use is a
bit under 5 cents per minute to the US).

Thanks for the info everyone.

Greg

Arthur Harris wrote:

"Greg" wrote:

Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.


I hear the MARS nets most often between 4.0 and 4.1 MHz mornings and
evenings.

Art N2AH



The last MARS net I heard was on 4003 kHz at about 8:00 EDT.

Jeff Seale
Louisville, KY

From: Jeff Seale
Organization: Insight Broadband
Newsgroups: rec.radio.shortwave
Date: Sat, 08 May 2004 21:16:15 GMT
Subject: MARS?

Arthur Harris wrote:

"Greg" wrote:

Is anyone hearing MARS activity (the military affiliates, not the planet)?
I never hear anything on the freq's I have.


I hear the MARS nets most often between 4.0 and 4.1 MHz mornings and
evenings.

Art N2AH



The last MARS net I heard was on 4003 kHz at about 8:00 EDT.

Jeff Seale
Louisville, KY

There was already activity on that freq when I tuned in around 7:45 EDT.

Also, I have heard the special Armed Forces Day traffic on 13985, 13996, and
14467 USA earlier and 14467 is still active.

Greg

Greg wrote:

There was already activity on that freq when I tuned in around 7:45 EDT.

Also, I have heard the special Armed Forces Day traffic on 13985, 13996, and
14467 USA earlier and 14467 is still active.

Greg


That's cool, I don't do too much daytime/morning listening though except
on the weekends when I don't have to work. The earliest you'll find me
hitting the radio is about 3:00 PM EDT.

Jeff Seale
Louisville, KY

On Sun, 09 May 2004 02:31:59 GMT, Jeff Seale
wrote:

Greg wrote:

There was already activity on that freq when I tuned in around 7:45 EDT.

Also, I have heard the special Armed Forces Day traffic on 13985, 13996, and
14467 USA earlier and 14467 is still active.

Greg


That's cool, I don't do too much daytime/morning listening though except
on the weekends when I don't have to work. The earliest you'll find me
hitting the radio is about 3:00 PM EDT.

Jeff Seale
Louisville, KY

I've been wondering: If a shortwave transmitter was put on Mars could
I pick it up - at night I mean? Would I need an external antenna?
BTW - I tune down.

-=jd=- wrote:

I have no idea if it's an actual fact or not, but back in the mid 70's I
was third party to a conversation in which it was mentioned that the moon
missions communicated on something like 10 watts. I didn't believe it at
the time - not that I would have known any better... Perhaps someone in
here has the scoop on it?

10 watts is pretty typical for downlink for a space mission. High power
transmitters are difficult in space: even if the power budget allows,
it's hard to get rid of the heat without air to help. We tend to go with
modest power and put in enough antenna gain to make the link work.
NASA's Deep Space Network has some enormous dishes, more than adequate
for a 10 watt voice link from the moon.

One thing that helps is that losses in space are very small: you don't
have ground absorption and ionospheric absorption is slight at the
frequencies we use. I'm sitting here watching a 300 bps link from the
HETE-2 satellite. Half a watt gives us 2000 km range using
non-directional antennas at both ends.

-jpd