Road-King 56 (RK-56) Dynamic Microphone is designed for voice
communications applications requiring a rugged, hand-held microphone.
Its noise-canceling design makes it particularly effective for use in
noisy locations, and its excellent voice response characteristics make
it a good choice in quiet areas as well.
The RK-56 uses dynamic, differential type
cartridge which discriminates against sounds greater than ½-inch (12 mm)
away. A non-marking lip guard assures the user of correct
microphone-to-mouth positioning. Best noise cancellation is achieved
with the edge of the lip guard just touching the upper lip. The push-to
talk switch is located on the top of the microphone housing. The RK-56
is equipped with the Highest Quality, "BELDEN" six-conductor,
receive coiled cord which is relieved at the microphone housing by a
telephone type strain relief grommet. The cord may be wired for either
relay or electronic switching.
- Dynamic LO-Z Noise canceling microphone
- Polyurethane coated steel grill screen
- Limited one year warranty
- Pre-wired for 4 pin Cobra,
REQUIRES PLUG and WIRING
for other types of radios.
- Microphone type: Noise-canceling dynamic
- Frequency response: 100 Hz to 8 KHz
- Output level at 1 KHz:
Open circuit: -72 db (ref: 0 db= 1 V/ubar)
Power level: -55db (ref: 0 db= 1 mW/10 ubar)
- Output Impedance: 2000 ohms (matches 600-5000
- Cable (mic cord):
6 conductor, receive, coiled cord: 12 inches (304 mm)
retracted and 6 feet (1.8m) extended.
- CASE: receive Cycolac
- Weight:8 ounces (0.2 kg)
- UPC #: 0 45464 76964 3