View Full Version : is the synthesized radio good for helis?
Mbuemi
06-11-2005, 03:13 PM
someone mentioned they may be unstable for use in a helicopter?
i really like the advantage of choosing any frequency and would like to go with this,
however if it fails in a helicopter due to instability then obviously not something id like to test.
Anyone using this in a helicopter setup? ever had problems? pros vs cons?
thanks...
also trying to decide whether to go with the 9chps PCM synthesized or the 9z wc2 heli pcm synthesized..
difference of abuot 700 dollars shipped.. is it worth the added 700 to go with the 9z?
im a beginner pilot about to buy my first radio - just wondering if i go with the 9c in a year or 2 if ill be disappointed and want the 9z then :P
thanks for your infor sharing
fitenfyr
06-11-2005, 04:45 PM
I use the synthesized module in my 9Z and for the most part it is handy, but not necessary.
I have found that 99% of the time at a fun fly I can fly all I want on my channel.
Some of the larger events may be different though.
I have not used the 9C version yet, but the 9Z version shows no signs of any signal loss or interferance. (even with my cell phone on my hip :D )
The synth receivers on the other hand I find to be a waste of money on the 9 series radios.
You still have to pull the canopy to change the channel and then the little dials may be just as much of a pain to get to as a crystal so why not just keep a few spare channels in the box and swap the cyrstal?
The 14MZ system is the way to go if you want to fly on whatever channel whenever. Course that is more than my first car cost. :D
The 9C super will do enough for most modelers at any skill level.
The 9Z WCII has better resolution for eCCPM models though so it depends on what you want and what you can afford.
The 9Z series is also 10x's harder to program than any other radio so be ready for that if you go with one.
Graeme
06-12-2005, 08:10 AM
Call me cheap! (Pretty inexperienced, too, since all I have is hover time.)
But, I'm using the Hitec Eclipse 7 with the Spectra unit, and a Polk's Seeker II. The Spectra has to be pulled to reset its frequency, but all I have to do on the receiver is push a remote button on power-up to change its frequency, (with the TX antenna inches away from the RX antenna).
Admittedly, I havn't had to change the channel yet to keep flying, but it's nice to know that for less than $350 I can.
Mbuemi
06-12-2005, 02:39 PM
looking at tower hobbies Futaba Crystal selection - can anyone tell me which crystals i can buy to swap out of my receiver R149DP.
the receiver that comes with the 9Chps tx with 4 9252 servos.
thanks confusing as heck.
what is dual conversion?
what is short?
what is narrow?
what is high ?
lol i have no idea how to even choose which crystals to buy with my TX
WayneBrown
06-12-2005, 06:38 PM
Channel 36 is the cut-off point between high and low. channels above 36 are high..well you get the idea.
Dual conversion is a tuning method, and advertising tag line to describe how the rx works.
Dunno about short..that's a new one on me.
Do not take a 'high' system and swap to 'low' it has been rumored to foul the hell out of things. (Don't know if it's valid or not, but I consider changing by '5' the limit, ie: channel 30 up to 35, or down to 25.)