inputs.text: works well drop transmitter power - ordered antenna replace rubber duck antenna came failsafe 500mw fm transmitter old antenna ran transmitter lowpower 100mw setting added 6db attenuator reduce power output 25mw configuration could get usable range 2 blocksi received dipole antenna fm dx antenna co even earliest expected date arrived perfect condition accompanying instructions wellwritten straightforward antenna 3 coax lead terminated male fconnector includes separate 6 length coax female fconnector one end bnc female attach transmitter dont need matching transformer set 75 ohms providing \\close enough\\ impedance match 50 ohm transmitter outputi adjusted telescoping pole antenna 32\\ 879mhz positioned vertically connected transmitter antenna located along wall house 8 average terrain powered unscientific range test discovered could receive signal high quality stereo 12 mile since farther want signal go replaced 6db attenuator 10db attenuator dropping transmitter output power 10mw another range test signal stays clean 14 mileslightly greater range rubber duck yet 40 power fed antenna right amount signal coverage want stay radar system curiosity tried transmitter full 500mw power no attenuator 12 wave dipole yielded clean signal 15 miles not bad half watt along flat terrainfor indoor fm transmitter antenna think would hardpressed better efficiency