redliquid33

Does anyone know the real RF (radio frequency) output of a typical 72 MHZ remote? Say the optic 6 from Hitec? And whats the furthest anyone has gone with line of sight and with a voltage around 9.6 volts?

RCKen

My Feedback: (9)

Is this what you are looking for on the "output" frequencies??

Channel 11 72.010 MHz
Channel 12 72.030 MHz
Channel 13 72.050 MHz
Channel 14 72.070 MHz
Channel 15 72.090 MHz
Channel 16 72.110 MHz
Channel 17 72.130 MHz
Channel 18 72.150 MHz
Channel 19 72.170 MHz
Channel 20 72.190 MHz
Channel 21 72.210 MHz
Channel 22 72.230 MHz
Channel 23 72.250 MHz
Channel 24 72.270 MHz
Channel 25 72.290 MHz
Channel 26 72.310 MHz
Channel 27 72.330 MHz
Channel 28 72.350 MHz
Channel 29 72.370 MHz
Channel 30 72.390 MHz
Channel 31 72.410 MHz
Channel 32 72.430 MHz
Channel 33 72.450 MHz
Channel 34 72.470 MHz
Channel 35 72.490 MHz
Channel 36 72.510 MHz
Channel 37 72.530 MHz
Channel 38 72.550 MHz
Channel 39 72.570 MHz
Channel 40 72.590 MHz
Channel 41 72.610 MHz
Channel 42 72.630 MHz
Channel 43 72.650 MHz
Channel 44 72.670 MHz
Channel 45 72.690 MHz
Channel 46 72.710 MHz
Channel 47 72.730 MHz
Channel 48 72.750 MHz
Channel 49 72.770 MHz
Channel 50 72.790 MHz
Channel 51 72.810 MHz
Channel 52 72.830 MHz
Channel 53 72.850 MHz
Channel 54 72.870 MHz
Channel 55 72.890 MHz
Channel 56 72.910 MHz
Channel 57 72.930 MHz
Channel 58 72.950 MHz
Channel 59 72.970 MHz
Channel 60 72.990 MHz

Ken

DMcQuinn

My Feedback: (13)

I think the output is a couple hundred mililwatts. I have flown straight up to 3300 feet with no loss of control.

redliquid33

no ken the milliwatt output. i want to know since i plan on putting a linear amplifier and its critical i know the output power to get the right ampifier. im planning to fly fpv in the middle of nowhere and want to extend the range so have enough output power to be safe.

broke_n_bummin

1/4 watt, and ledgend has it that it will reach farther than you can see to control the plane. I've heard about some of the glider guys tell tales of 4,000 ft, but I like my planes too much to test it ... even with a camera.

masonman

My radio will have full control of my planes way after i can tell what they are doing. 1500 hundred feet or so. Thats far enough for me. How big of model will you be flying? an what do you need the extra range for?..........Just wondering

raulcroes

Hi Redliquid33,

I know that the Futaba radios have a power output of +/-500mw and the JR radios 750mw. As for spread spectrum the output is 150mw. Whichever you use, you will have radio control over the aircraft long after you have lost sight of it, equating to loss of control due to lack of visual refference[sm=spinnyeyes.gif]. Regards, Raul G. Croes[8D]

Rodney

The power output at these frequencies is limited by law and any deviations much pass some rigerous testing as well as obtaining special permission if even now possible. Violations can be quite painful to both pocketbook and freedom.

VFR_RC

Yup, the FCC keeps a close eye on any signals going through the air.

redliquid33, what airplane are you working on? got any pics?

sscherin

My Feedback: (1)

Your best bet would be to use a HAM frequency (50mhz).. You can go up to 1 watt on 50mhz provided you have a HAM license.

There's an old thread on RC Groups about higher power for UAV.
http://www.rcgroups.com/forums/showthread.php?t=369114

KI8FR

on 50mzh we can go more then 1 watt but there is no reson to do so. 1/4 of a watt is all that is needded to fly a plane

skeeter_ca

Hmmm...........This sounds amazingly like another post that was deleted when the original poster would not give specific answers to what he was doing this for. You know the big "T" word.

KI8FR

Do not know what the "t" word is but you are right. You can not run more then 1 watt out of a tx.

VFR_RC

Skeeter, that was exactly why i was asking.