Need a new receiver

[ncalenda]

Originally Posted by benjakas

Found a wavelength calculator, you can calculate the length of the antenna with http://www.qsl.net/haha/calc.html

I put in 75 Mhz, and it returned 37.44 inches. Does that seem long?

Thanks!!

[silentbob343]

Originally Posted by ncalenda

I put in 75 Mhz, and it returned 37.44 inches. Does that seem long?

Thanks!!

Yeah, just make it the stock length which was 19.6 in and put heatshrink over the solder connection.
http://www.futaba-rc.com/radioaccys/futl26.html
Notice that is roughly the same length as the replacement wire I linked to earlier.

Matching the wavelength might be good when you need every last foot, but is most likely overkill for most ground vehicles.

[BrianG]

Originally Posted by ncalenda

I put in 75 Mhz, and it returned 37.44 inches. Does that seem long?

Thanks!!

That's probably for a full wave. You can cut the wire in exactly half for a half wave, and shouldn't have any appreciable loss in signal. Antenna length is most important for a transmitter (could actually damage the RF amplifier), but a receiver is less picky.