How Many Watts Dead Key do Aviation radios have

[DualAntennas]

Sorry if this is the wrong section.

I was just curious
How Many Watts Dead Key
Do Aviation radios have...
If CB is 4 watt output???

 

[Robb]

They don't use AM mode.

Those who think it is funny to mess around with air traffic control find themselves in a federal jail real fast.

 

[w9cll]

It's not the dead key it's the 10k watts swing they have.

 

[DualAntennas]

It's not the dead key it's the 10k watts swing they have.

thanks w9cll thats the answer i was looking for

 

[Mudfoot]

They have to use AM mode. If ATC tried to monitor every plane on FM, only the strongest would be heard due to capture.

 

[w9cll]

All ATC is AM and about 50 watts as range is not a problem. Ground control is probably closer to 10 watts.

 

[DualAntennas]

All ATC is AM and about 50 watts as range is not a problem. Ground control is probably closer to 10 watts.

So a stock 4 Watt CB should get about 30-50 miles on a clear day with NO hills or mountains in the neighborhood right???????

 

[w9cll]

Yes and no, antenna type, height, weather conditions and many other factors could come into play. Under normal conditions if your working a mobile it's highly unlikely your going to more then 15 miles. If working base to base then 25 is likely.

 

[vkrules]

Yes and no, antenna type, height, weather conditions and many other factors could come into play. Under normal conditions if your working a mobile it's highly unlikely your going to more then 15 miles. If working base to base then 25 is likely.

And if your 2000 ft up in a aircraft ? I'm guessing hundreds of Miles. Any pilots on the forum?

 

[DualAntennas]

Yes and no, antenna type, height, weather conditions and many other factors could come into play. Under normal conditions if your working a mobile it's highly unlikely your going to more then 15 miles. If working base to base then 25 is likely.

What about 12 watts SSB throwen in????
Would a Base to Mobile set-up be better
if we each had a Cobra 148-GTL with SSB?

 

[IMD262]

They don't use AM mode.

Those who think it is funny to mess around with air traffic control find themselves in a federal jail real fast.

AM is the predominate mode of Aeronautical communications in the VHF and UHF aero bands.I have heard military aircraft use FM when communicating with ground units.USB is used in the HF spectrum.

There have been cases of people interfering with ATC for years before being arrested and what about the drug cartels and hobbyists using our military satellites for their personal repeaters?this has been going on for a very long time .... I guess it boils down to what you consider "real fast".

 

[DualAntennas]

What about 12 watts SSB throwen in????
Would a Base to Mobile set-up be better
if we each had a Cobra 148-GTL with SSB?

Back on the topic of my Quote Please!!!

 

[Craig]

Years ago television personality, amatuer operator and pilot Arthur Godfrey operated CB from his plane located at Teterboro Airport in NJ, my dad and uncle who were avid CB'ers in the sixties spoke to Godfrey several times while flying. I was told he could be heard well from one end of the state to another without any difficulty.

There's been several instances where I've spoken with operators on CB who have claimed to be airborne, most notably a year or so ago with a military air crewman a communications specialist while flying over the Midwest. I believe his claim was legitimate frequently hearing him on 38 LSB he would pop in for a few moments making a few contacts before disappearing. This was happening fairly regularly for several months the station could be easily recognized by it's unique sound.

 

[sonoma]

just doing a quick google search I found a lot of info on air craft freq and wattage. here is what one pilot stated.couple of places a guy said his did 100 watts. you will be surprised of how much info on this is on google.

I believe it is in the order of 25w but stand to be corrected.

Collins 618M3 VHF comm, 25 watts.
King Gold Crown KTR9000 VHF comm, 25 watts.
King Gold Crown KTR900/905 VHF comm, 20 watts.

I have two of the latter in my my private airplane, 40 years old, and they still work to perfection.

The King Gold Crown line was first introduced in 1968, and is of comparable quality to the Collins units of the period.

 

[northern35s]

The accepted standard range for VHF communication is 90 miles and yes AM, however I've spoken to many aircraft in excess of that up to around 150 miles depending on height and conditions.

As for output power, for large transport aircraft that's often dependant on the spec ordered by the airline, however the Rockwell Collins VHF-2100 is 25W DSB-AM, with HF between 100-200W PEP dependant on spec, some older types exceeding this