Total posts : 45366
The telescopic whip that comes with the Ramsey does pretty well and it should be noted it does cause some hum in the transmitter. Years ago I had the Ramsey FM 25 A and it did pretty well , kind of wish i still had that but a crooked storage facility took it and most of my posessions claiming we were over due on rent.
Any way both transmitters have a screw soldered onto the board which is in line with the F connector as well.
I have removed that screw a long time ago since the rf from that whip seems to put noise into the transmitter but a trick around that is to take one of those cheap $9 cb antennas from walmart, the kind that is a little over a foot tall, magnet mount with the coil in the middle.
Remove the cheap 50 ohm coaxial cable and replace it with 75 ohm coax , the coil needs to be removed and a wire jumper placed in line to complete the circuit, otherwise you would be feeding the wrong frequencies into a 27 mhz coil and your rang will suck.
The other end of the coax needs to have the F – Connector on it to screw into the Rasmey transmitter.
Placing the antenna in a window away from transmitter will remove any hum you might have experienced when the whip was coming out of the top of the transmitter. It’s crude but effective.
Since Tim used a battery for his test’s the walwart power supply won’t be needed but I am wondering if he will have the same problem with hum , if he decides to test the Ramsey.