Back when I last flew (the stone age it seems like), the radios / receivers used crystals and had frequencies assigned to them (i.e. Channel 46, 48, 56, etc) but since the conversion to 2.4GHz, if I am flying next to another person, how do I know that their radio won't interfere with mine? I didn't see any channel assignment listed on my radio box (but then again, I haven't dug into it yet because I don't want the excitement causing my to build the airplane in record time and doing a lousy job plus I am trying to teach my son how to be patient, etc). Thank you in advance.
Announcement
Collapse
No announcement yet.
Ok, another stupid question
Collapse
X
-
Hi Medic1972.
With a 2.4GHz your good to go!! You're right assigning frequencies is a thing of the past, nowadays the radio and the receiver take care of all that. There is a lot of info on the web, for instance....
This might help you out
Welcome to the forum!
Grossman56Team Gross!
-
Hi medic1972
Yes as grossman56 said today in 2.4 radios their is no frequence that you have to worry about any more. Their are a possible 99 channels that it can auto switch to if it encounters a problem. So If someone lets say is out in the parking lot turns their radio on and your flying already his radio will see that channel as being used an it will go find another channel in less then a blink of an eye. The old crystal days are gone now much nicer and the radios seem smoother today as well. Good luck and hope the build goes well.
- Likes 1
Comment
-
Originally posted by bradl4648 View PostHi medic1972
Yes as grossman56 said today in 2.4 radios their is no frequence that you have to worry about any more. Their are a possible 99 channels that it can auto switch to if it encounters a problem. So If someone lets say is out in the parking lot turns their radio on and your flying already his radio will see that channel as being used an it will go find another channel in less then a blink of an eye. The old crystal days are gone now much nicer and the radios seem smoother today as well. Good luck and hope the build goes well.
That statement isn't exactly true. I belong to (2) clubs that members still use the solid 72Mhz freq.. Both clubs have a freq. board for 72Mhz pilots to indicate their freq. with a Freq. Pin w/pilots' name & Ch being used. In addition, several of us have the Hobbico Freq. Tester to insure the ch indicated is correct or in doubt by the pilot. No incidents have taken place since I've been a member. Both clubs monitor 72Mhz users to insure that 2 pilots on the same ch are not in conflict. Many pilots, including myself, definitely feel that the 72Mhz freq. is a much more solid link & has better range than the 2.4. although use both. As far as "radios seem smoother today", that's pure bunk. I have yet to hold a radio that feels anywhere near the solid metal encased JR's I have for rugged reliability, smoothness, & superb quality components that were used "back-in-the-day". All my JR's have stood the test of time unlike all the plastic junk being produced today. Ok...I'm done.....flame away.
Denny*** \"A man\'s word is his honor....without honor there is nothing.\" ***
*** I have no hesitation to kill nor reservation to die for the Flag & Constitution of the USA. ***
Comment
-
I have an ancient 4 channel Futaba and a World Expert 7 channel that are 72mhz, so you're saying I can still use them? These are great transmitters that I've had packed away for years. I'll need new Nicads and they should be good to go. And I won't have to be worried about getting shot down by the new radios? I guess I just assumed they weren't usable today. Can the old receivers be powered by bec?
Comment
-
yes you can use the old school 72mhz radios and in fact I see light sabers waving in the air at air shows. They are still useable and to my knowledge the FAA or AMA has not outlawed them yet. Now that I say that It will be now LoL. But I will tell you getting those receivers or crystals is almost obsolete. Anyway to keep the cost down and still enoy this hobby I say go for it man have fun!
Comment
-
I guess I will throw my two cents in the pond.
The old 72 Mhz radios had a range of a few miles, the 2.4 have a range of about 3000 ft, or 2/3 of a mile. So there is that. The old 72 mhz radios were encased in metal(mostly), and you had a nice, solid radio in your hands. So there is that as well. If someone accidentally(or a kid got hold of) turned on a 72 mhz radio on the same or neighboring channel that you were using, You could kiss that plane goodbye. The long antennas on the receivers(and fragile crystals) and the extendable antenna for the transmitter were burdensome, where as the built in antennas of the new radios are more convenient. The frequency hopping spread spectrum technology makes interference, at least from another 2.4 ghz radio, virtually impossible, though by FCC rules, it has to accept any interference from another source. So that's two for 2.4 ghz.
What it boils down to, is that neither is better than the other, and both are usable and attainable. They each have their strengths and weaknesses. Old school guys like their 72's and new school guys like the 2.4's, and vice versa, and mixed all around. Is there a wrong choice?
I say, grab a plane and a radio and lets go fly!!!
Comment
-
I disagree with the limited range of 2.4G; given a proper installation, they have been tested to over 1.5 miles. There are issues if there are trees around, though. One thing to be careful of, not all 2.4G radios use spread spectrum. Some of the cheap ones that came with RTF models, and some early FlySky radios, were single-channel, and even the DSM2 used only two. If a cheap radio, or even another DSM2, is switched on some distance away, then the operator approaches your radio, there can be interference. So, make sure your radio is a true spread-spectrum, if you buy used. The 72Mhz also can have multi-path issues if walls or overhead wires are near, but do much better flying around trees.
Comment
-
Originally posted by boomer108 View PostI don't quite understand what sense it makes to have a radio capable of 3 mile range when you wouldn't be able to see it anyhow?
Roy B.
Comment
-
Originally posted by bradl4648 View Postyes you can use the old school 72mhz radios and in fact I see light sabers waving in the air at air shows. They are still useable and to my knowledge the FAA or AMA has not outlawed them yet. Now that I say that It will be now LoL. But I will tell you getting those receivers or crystals is almost obsolete. Anyway to keep the cost down and still enoy this hobby I say go for it man have fun!
Denny
3 Photos*** \"A man\'s word is his honor....without honor there is nothing.\" ***
*** I have no hesitation to kill nor reservation to die for the Flag & Constitution of the USA. ***
Comment
Comment