single RX and two antennas ???
03-03-2003, 06:17 AM
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single RX and two antennas ???
Hi
Maybe this is a very stupid question but I just want to see what you guys have to say.
I'm building a 35% extra 330s and is time to setup the antenna wire, is a balsa fuselage so no problem with setting the antenna inside the fuselage, right ??.
before do that I decided to search on RCU to see I if find more information about antennas setup, of course there are several thread about this issue and help me a lot, BUT then I remember I read somewhere about radio signal lost due because the airplane position when it very far from pilot Tx, I mean, imagine you setup the antenna inside and on the top of the fuselage and you make a slow roll very far from you, there will be a moment that the antenna is going to be "hidden" from your Tx signal and you can suffer a little signal lost. I don't think this is a common problem but I start thinking how to fix this problem.
Can I solder a second antenna to the Rx, so I can put one antenna on the top and the other on the bottom of the fuselage ??? in that way you are sure you have a 360° clear signal reception.
I'm using a Futaba 148 PCM Rx
Thanks
Fernando Viollier
Maybe this is a very stupid question but I just want to see what you guys have to say.
I'm building a 35% extra 330s and is time to setup the antenna wire, is a balsa fuselage so no problem with setting the antenna inside the fuselage, right ??.
before do that I decided to search on RCU to see I if find more information about antennas setup, of course there are several thread about this issue and help me a lot, BUT then I remember I read somewhere about radio signal lost due because the airplane position when it very far from pilot Tx, I mean, imagine you setup the antenna inside and on the top of the fuselage and you make a slow roll very far from you, there will be a moment that the antenna is going to be "hidden" from your Tx signal and you can suffer a little signal lost. I don't think this is a common problem but I start thinking how to fix this problem.
Can I solder a second antenna to the Rx, so I can put one antenna on the top and the other on the bottom of the fuselage ??? in that way you are sure you have a 360° clear signal reception.
I'm using a Futaba 148 PCM Rx
Thanks
Fernando Viollier
03-03-2003, 07:28 AM
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DOS ANTENAS!
No! - adding another antenna to a recevier will seriously detune it and you will lose range. An single internal antenna in the average airplane works well unless you have a lot of carbon fiber (conductive) or some sort of metallic covering.
You might get momentary loss of signal in a large airplane with long servo extensions. In that case, a vertical antenna will help - add a 15 to 18 inch piano wire sticking straight up, and cut off the same length from the orignal antenna. Solder, of course!
Do you know Rodrigo and Loreto?? Me les das saludos! Eloy
You might get momentary loss of signal in a large airplane with long servo extensions. In that case, a vertical antenna will help - add a 15 to 18 inch piano wire sticking straight up, and cut off the same length from the orignal antenna. Solder, of course!
Do you know Rodrigo and Loreto?? Me les das saludos! Eloy
