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Old February 14th 07, 12:46 AM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

Scott wrote:

Uh, not quite. While the X Band police radars are at 10.525 GHz, the
ham band is only from 10.000 to 10.500 GHz. Plus, pulse modulation is
not allowed on the 3cm band. We CAN use MCW, phone, image, RTTY, data,
SS, and test modulations. Hmmm, I wonder about plain old vanilla CW???
I don't see it mentioned...maybe "data" covers that nowadays (and with
a bandwidth limit of 100 KHz, we could smoke along at a LOT of WPM!!).

Scott
N0EDV


CW is almost always used for beaconing to align antennas. SSB is then
often used for the contact, however CW is used if it is marginal. Just
like HF, VHF and UHF contests. The major difference is that the
transmitter will often drift a couple hundred hertz during the QSO.

I have a few audio clips from the 10G cumulative contest last fall. If
anyone is interested I will email you a link.

Also see the article in this months QST by Jon Platt, W0ZQ.

tom
K0TAR
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Old February 13th 07, 02:47 AM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.


http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR
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Old February 13th 07, 04:30 AM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

On Feb 12, 8:47 pm, Tom Ring wrote:
KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.


http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR


so you don't go out and buy a "3cm transceiver" as you would for 2m,
10m, 40m, etc.?

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Old February 13th 07, 04:44 AM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?


"KE5MBX" wrote in message
ups.com...
On Feb 12, 8:47 pm, Tom Ring wrote:
KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.


http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR


so you don't go out and buy a "3cm transceiver" as you would for 2m,
10m, 40m, etc.?


:-))


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Old February 13th 07, 12:04 PM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

KE5MBX wrote:
On Feb 12, 8:47 pm, Tom Ring wrote:
KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.

http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR


so you don't go out and buy a "3cm transceiver" as you would for 2m,
10m, 40m, etc.?


You could,
http://www.advancedreceiver.com/page32.html


- Galen, W8LNA


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Old February 13th 07, 02:39 PM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

KE5MBX wrote:
On Feb 12, 8:47 pm, Tom Ring wrote:
KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.

http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR


so you don't go out and buy a "3cm transceiver" as you would for 2m,
10m, 40m, etc.?

Yes you can. Check the back of QST for a complete 3cm station. Cost is
about $500 or so.

Dave WD9BDZ
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Old February 13th 07, 10:46 PM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

Sure you do...from the link Tom provided. DownEast offers the
"transverters" in kit or built form. Tons of us are using their
equipment See also http://www.nlrs.org to see what we're all doing
up there.

Scott
N0EDV

KE5MBX wrote:

On Feb 12, 8:47 pm, Tom Ring wrote:

KE5MBX wrote:


Where the heck do you get a 3cm transmitter, though? ha.


http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR



so you don't go out and buy a "3cm transceiver" as you would for 2m,
10m, 40m, etc.?

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Old February 14th 07, 12:22 AM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

Not to mention the

Laser detector shield (as advertised on radio)
(Which as near as I can figure, "Modulates" the
received "radar" signal, to a LOW frequency AM
signal to a dopler radar . I.E. a "RADAR
Caliberator" ! Banned in 6 states! Jim


Tom Ring wrote:
KE5MBX wrote:

Where the heck do you get a 3cm transmitter, though? ha.


http://www.downeastmicrowave.com/

And you can easily do 200KM on 200 mW, or 1000 KM per watt with a Dish
Network (or equivalent) antenna on 10G SSB forward scatter.

tom
K0TAR

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Old February 13th 07, 10:29 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
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Default killing cars with high RF?

Oh, that's an easy one...(Gunnplexers come to mind for a simple CW 3cm
transmitter)

http://www.downeastmicrowave.com or http://www.shfmicro.com and there
are probably a few others...

Scott
N0EDV

KE5MBX wrote:

On Feb 12, 5:50 pm, "Stefan Wolfe" wrote:

"KE5MBX" wrote in message

roups.com...


Hi,
What's all this business I hear people talking about blasting people's
car stereos or killing cars altogether with high-power RF? I run 2m,
10m, and 11m in my jeep and I'd like to sort out the fact from the
legend and find out what kind of power I can use without risking
damage to my jeep or cars around me. At what power level is front-end
overload to a nearby radio likely? At what power level is damage
likely, and to what componets?


I am currently using only 50 watts on a 5/8 wave (2m), 25w on a 1/4
wave (10m), legal 4w on a 1/4 wave (11m)


Thanks,
Nelson KE5MBX


I think over 100W you may have problems with HF and VHF. It can be a
problem.

One thing that works real well is to transmit near the x-ray radar band
where you have privileges. The traffic may slow down a bit as you set off
the radar detectors :-)



Where the heck do you get a 3cm transmitter, though? ha.

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Old February 13th 07, 10:25 PM posted to rec.radio.amateur.antenna
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Default killing cars with high RF?

Think you meant "X" Band (10 GHz). I don't think many of us are using
x-rays for communications...

Scott
N0EDV

Stefan Wolfe wrote:

"KE5MBX" wrote in message
ups.com...

Hi,
What's all this business I hear people talking about blasting people's
car stereos or killing cars altogether with high-power RF? I run 2m,
10m, and 11m in my jeep and I'd like to sort out the fact from the
legend and find out what kind of power I can use without risking
damage to my jeep or cars around me. At what power level is front-end
overload to a nearby radio likely? At what power level is damage
likely, and to what componets?

I am currently using only 50 watts on a 5/8 wave (2m), 25w on a 1/4
wave (10m), legal 4w on a 1/4 wave (11m)

Thanks,
Nelson KE5MBX



I think over 100W you may have problems with HF and VHF. It can be a
problem.

One thing that works real well is to transmit near the x-ray radar band
where you have privileges. The traffic may slow down a bit as you set off
the radar detectors :-)




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