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Old Jan 24, 2003, 12:12 PM
propbuster2
Guest
n/a Posts
Transmitter Range

Can anyone give me the practical range of today’s RC
transmitters? The reason I ask is that I’m getting into the
world of park fliers but I’m concerned about generating
interference at a local RC field. I guess-timate that the distance
between where I’d be flying and the RC field is roughly 3 miles
and would have line of sight to a flying aircraft (i.e. no obstacles
between me and another aircraft flying at the RC field). Any
thoughts?
Old Jan 24, 2003, 12:22 PM
Don Hatten
Guest
n/a Posts
Re: Transmitter Range

5 miles minimum separation has always been the standard distance bandied
about in clubs I have belonged to.

Don

"propbuster2" <propbuster2@earthlink.net> wrote in message
news:9502d21.0301240956.16e2458b@posting.google.co m...
> Can anyone give me the practical range of today’s RC
> transmitters? The reason I ask is that I’m getting into the
> world of park fliers but I’m concerned about generating
> interference at a local RC field. I guess-timate that the distance
> between where I’d be flying and the RC field is roughly 3 miles
> and would have line of sight to a flying aircraft (i.e. no obstacles
> between me and another aircraft flying at the RC field). Any
> thoughts?



Old Jan 24, 2003, 12:32 PM
Maarten Zanders
Guest
n/a Posts
Re: Transmitter Range

go and talk with the club's officials.. do some testing, decide wether there
is a problem and if there is, what possible solutions are... Don't go
experimenting/guessing on your own, saves a lot of trouble.


"propbuster2" <propbuster2@earthlink.net> schreef in bericht
news:9502d21.0301240956.16e2458b@posting.google.co m...
> Can anyone give me the practical range of today’s RC
> transmitters? The reason I ask is that I’m getting into the
> world of park fliers but I’m concerned about generating
> interference at a local RC field. I guess-timate that the distance
> between where I’d be flying and the RC field is roughly 3 miles
> and would have line of sight to a flying aircraft (i.e. no obstacles
> between me and another aircraft flying at the RC field). Any
> thoughts?



Old Jan 24, 2003, 01:12 PM
The Natural Philosopher
Guest
n/a Posts
Re: Transmitter Range


propbuster2 wrote:

> Can anyone give me the practical range of today’s RC
> transmitters? The reason I ask is that I’m getting into the
> world of park fliers but I’m concerned about generating
> interference at a local RC field. I guess-timate that the distance
> between where I’d be flying and the RC field is roughly 3 miles
> and would have line of sight to a flying aircraft (i.e. no obstacles
> between me and another aircraft flying at the RC field). Any
> thoughts?
>



The club I sometimes go to has that separation betwen the lectric and
glider boys, and the power boys.


For safety we fly even channels on gliders and electrics and odds on the power models,

so we have 20khz separation between transmitters on the same field. This is on 35Mhz.


Although we occasionally get glitches and hits, I don't think these are
caused by other RC transmitters - lots of the electric boys fly simple
parkfly sets, and my suspicion is its taxi voice traffic and other VHF
traffic in the area.

The practical limit of range of a normal TX and RX is generally reckoned
to be about a mile or 1500 meters. A parkflkyer type receiver might be
only a third of that - 500meters or less.

Its very unlikley that even if pair of transmitters were at different
sites 3 miles apart on the same frequency, a given model would be shot
down unless it flew to halfway between, simply because of the tendency
to lock in to the strongest signal.

Obviously if the model happened to have its aerial pointing exactly
wrong for its own transmitter, it might transiently pick up the more
distant one if it was way down range, but parkfliers simply don't fly
way down range do they?

It would pay to check it out with a 'disposable' model, and have a chat
with the other field flyers, but I feel pretty confident that you won't
see any problems.

If you are realy paranoid, split the band between the two sites.


Old Jan 24, 2003, 01:12 PM
The Natural Philosopher
Guest
n/a Posts
Re: Transmitter Range


Don Hatten wrote:

> 5 miles minimum separation has always been the standard distance bandied
> about in clubs I have belonged to.
>



The BMFA cites 2 miles, unless frequency allocation schemes are in force.


> Don
>
> "propbuster2" <propbuster2@earthlink.net> wrote in message
> news:9502d21.0301240956.16e2458b@posting.google.co m...
>
>>Can anyone give me the practical range of today’s RC
>>transmitters? The reason I ask is that I’m getting into the
>>world of park fliers but I’m concerned about generating
>>interference at a local RC field. I guess-timate that the distance
>>between where I’d be flying and the RC field is roughly 3 miles
>>and would have line of sight to a flying aircraft (i.e. no obstacles
>>between me and another aircraft flying at the RC field). Any
>>thoughts?
>>

>
>


Old Jan 24, 2003, 03:52 PM
CainHD
Guest
n/a Posts
Re: Transmitter Range

>5 miles minimum separation has always been the standard distance bandied
>about in clubs I have belonged to.
>
>Don


New AMA distance (See '03 Safety Code) is now THREE (3) miles.

Lots of stuff last year about Park Fliers, so AMA simply reduced the distance
between sites.

Now -- in MY OPINION -- that's rather like "Must have money in the bank because
there are still blank checks in the book."

Easy way out, but may cause more problems than one wants.

HC
Old Jan 25, 2003, 04:52 AM
DC3Gooney
Guest
n/a Posts
Re: Transmitter Range

>propbuster2 wrote:
>
>> Can anyone give me the practical range of todays RC
>> transmitters? The reason I ask is that Im getting into the
>> world of park fliers but Im concerned about generating
>> interference at a local RC field. I guess-timate that the distance
>> between where Id be flying and the RC field is roughly 3 miles
>> and would have line of sight to a flying aircraft (i.e. no obstacles
>> between me and another aircraft flying at the RC field). Any
>> thoughts?
>>


Just a dumb thought ~ if it's only three miles to the club, why
not join it? There's no substitute for a freq board....
DC3
Old Jan 25, 2003, 09:02 AM
Tom Johnson
Guest
n/a Posts
Re: Transmitter Range

Sort of OT, but this reminds me of a local newspaper column a year or
so ago.

Among other things, the author was talking about new toys out for
Christmas. He told of a father and son who bought a neat new park
flyer, only to have it fly off into the sunset. He went into prosaic
detail with the whole story and how sad it was for them. He described
the model in detail; size, color, and electric motor. A week after the
column appeared the author was contacted by a man who had found the
model in his yard, about 2 miles from where it took off. The next
column told of the happy reunion.

Moral of the story? Learn how to turn? Take a photo before you lose it
to make a "Lost Plane" poster? Make friends with a newspaper
columnist? : )

Tom

P.S. Clean up your language, this is a family newsgroup! : )

> The reason I ask is that I’m getting into the
> world of park fliers but I’m concerned about generating
> interference at a local RC field.



--
"propbuster2" <propbuster2@earthlink.net> wrote in message
news:9502d21.0301240956.16e2458b@posting.google.co m...
> Can anyone give me the practical range of today’s RC
> transmitters? The reason I ask is that I’m getting into the
> world of park fliers but I’m concerned about generating
> interference at a local RC field. I guess-timate that the distance
> between where I’d be flying and the RC field is roughly 3

miles
> and would have line of sight to a flying aircraft (i.e. no obstacles
> between me and another aircraft flying at the RC field). Any
> thoughts?



Old Jan 25, 2003, 02:42 PM
Benny
Guest
n/a Posts
Re: Transmitter Range

Field Nazis
Club Dues
Forced payment to AMA


"DC3Gooney" <dc3gooney@aol.comnomail> wrote in message
news:20030125053630.24541.00000131@mb-ck.aol.com...
> >propbuster2 wrote:
> >
> >> Can anyone give me the practical range of todays RC
> >> transmitters? The reason I ask is that Im getting into the
> >> world of park fliers but Im concerned about generating
> >> interference at a local RC field. I guess-timate that the distance
> >> between where Id be flying and the RC field is roughly 3 miles
> >> and would have line of sight to a flying aircraft (i.e. no obstacles
> >> between me and another aircraft flying at the RC field). Any
> >> thoughts?
> >>

>
> Just a dumb thought ~ if it's only three miles to the club, why
> not join it? There's no substitute for a freq board....
> DC3



Old Jan 27, 2003, 01:32 AM
The Natural Philosopher
Guest
n/a Posts
Re: Transmitter Range


Benny wrote:

> Field Nazis
> Club Dues
> Forced payment to AMA



"Right. before you fly here alone, you gotta pass the test"
"Whats the test?"
"Right. First of all you gotta start your engine safely, and taxi the
model out to the strip"
"My zagi don't have wheels"
"Well you can't pass the test then can you?"
"So I can't fly here till I pass the test, and I can't pass the test cos
I don't have a slimer with wheels?"
"Right."
"Thanks. I'll be flying three miles down the road than"
"You can't do that. Its against the rules"
"But if I am not a club member, the rules don't apply right?"
"Er. Bugger off".

You can argue the rights and wrongs, but the fact remains that we need a
new style of club and maybe different insurance arrangemnents for park
flyers.

The club I sometimes attend has essentially accepted that. Helicopters
are 5 miles one way, gliders and parkflyers three miles the other. The
heicopters formed their own club, the gliders and parkflyers are part of
the main club. About half of the electric/glider people have never taken
any test.

Everyone has insurance though, either through the club or directly. And
different sites run on different channels.




>
>
> "DC3Gooney" <dc3gooney@aol.comnomail> wrote in message
> news:20030125053630.24541.00000131@mb-ck.aol.com...
>
>>>propbuster2 wrote:
>>>
>>>
>>>>Can anyone give me the practical range of todays RC
>>>>transmitters? The reason I ask is that Im getting into the
>>>>world of park fliers but Im concerned about generating
>>>>interference at a local RC field. I guess-timate that the distance
>>>>between where Id be flying and the RC field is roughly 3 miles
>>>>and would have line of sight to a flying aircraft (i.e. no obstacles
>>>>between me and another aircraft flying at the RC field). Any
>>>>thoughts?
>>>>
>>>>

>>Just a dumb thought ~ if it's only three miles to the club, why
>>not join it? There's no substitute for a freq board....
>>DC3
>>

>
>


 


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