2.4 RF meters
Posted: 27 Aug 2019, 00:05
Would any here know of a way to make an RF indicator-meter for 2.4? I acquired a Tower Hobbies six channel transmitter, and it has a switch just behind the antenna for selecting the panel meter to read battery voltage or RF output. Normally I wouldn't deal with Tower's junky products, except this one was made by Kraft, and has the Kraft sticks and what looks like the general layout of a Kraft product.
I thought I read somewhere, can't remember where, you can't use a simple diode detector for 2.4, but would need a circuit resembling a 2.4 receiver instead. This was brought on by my upcoming transmitter project, a World Engines 'Controlaire' four-channel tranny. This is the production version, not the kit-built 'M.A.N. 2-3-4' version, although I have one of those as well. Anyway, it has a meter hooked up to a resistor-diode circuit, shunted with a capacitor, connected to a short piece of resistor lead, about 1 1/4" long, and situated close to the center-loaded antenna, just as it comes down through the case top. I assume needed power to run the meter comes off the antenna.
My thought was, if such a circuit could be made, both the Controlaire and Tower transmitters could benefit from it. If not, I'll just use the normal ESV-type battery monitor meter.
Any information would be appreciated. I looked up 'display' in the search box and came up empty, so thought I'd ask here.
Marc
I thought I read somewhere, can't remember where, you can't use a simple diode detector for 2.4, but would need a circuit resembling a 2.4 receiver instead. This was brought on by my upcoming transmitter project, a World Engines 'Controlaire' four-channel tranny. This is the production version, not the kit-built 'M.A.N. 2-3-4' version, although I have one of those as well. Anyway, it has a meter hooked up to a resistor-diode circuit, shunted with a capacitor, connected to a short piece of resistor lead, about 1 1/4" long, and situated close to the center-loaded antenna, just as it comes down through the case top. I assume needed power to run the meter comes off the antenna.
My thought was, if such a circuit could be made, both the Controlaire and Tower transmitters could benefit from it. If not, I'll just use the normal ESV-type battery monitor meter.
Any information would be appreciated. I looked up 'display' in the search box and came up empty, so thought I'd ask here.
Marc