(meteorobs) Radio Forward Scatter

[Richard]

I have been monitoring an FM transmitter in Poland recently - it is on 100.1
MHz and runs about 120 kW. You can see my last 24 hours at
http://www.ramfihaz.com/current_24_hours.htm Conveniently, there do not seem
to be any other stations listed on that frequency and it is pumping out a
lot of power.

The reflections are not as strong as my Band 1 TV signals (still some
available in Europe) but I hope to gain some extra dB with a directional
antenna at some stage. It is probably not good enough to count individual
pings but the 24 hour trace gives a good feel for the meteor activity.

My counters are not much use with the current sporadic E activity with the
other stations but once again the 24 hour traces give a good feel for
activity.

Note that you can select a range of days from the menu for the 24 hour
traces and you can see annual showers building up and peaking over several
days.

Regards

Richard

-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of
alaskascatter at gmail.com
Sent: 16 June 2009 22:14
To: Global Meteor Observing Forum
Subject: Re: (meteorobs) Radio Forward Scatter

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Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Lake Hodges Radio <LakeHodgesRadio at Cox.net>

Date: Sat, 13 Jun 2009 07:58:35 
To: David Entwistle<david at radiometeor.plus.com>; Global Meteor Observing
Forum<meteorobs at meteorobs.org>
Subject: (meteorobs) Radio Forward Scatter


At 01:01 AM 6/13/2009, David Entwistle wrote:
>The advantage of the analogue TV vision carrier is that it contains 
>a large un-modulated carrier component..

Hmmm.  VOR's may also have a steady un-modulated VHF carrier, but 
they are less powerful than analog TV carriers. I can't think of any 
other un-modulated VHF carriers.  Generally, when someone spends the 
money to generate a carrier, they add modulation to it.

There may be some carriers on HF, such as beacons and WWV, that have 
steady carriers with only a little bit of modulation, but HF bounces 
off of the ionosphere, and I assume that you want signals that don't 
do that, right?

-- Kurt, N6MD









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