Manufacturer's Suggested Retail: $59.95
Your Price Only: $49.88!
DX1 - Prewired w/ 4-Pin Plug: $55.88
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The ASTATIC ROAD DEVIL (Model RD-104E) is an amplified electret noise cancelling microphone for close talking, hand held applications in CB, Amateur Radio, and SSB communications. The ROAD DEVIL features a high gain amplifier with electronic equalization to provide maximum talk power and intelligibility even under noisy conditions. The ROAD DEVIL amplifier and 6 wire cable make it compatible with all modern transceivers.
• Amplified Electret Noise Cancelling
• Electronic Equalization for Maximum Talk Power
• PC Board Ground Plane for Maximum RF Feedback Suppression
• Large External Volume Control
• Soft Molded "No-Stain" Vinyl Lip Guard
• Steel Grille Screen
• Rugged ABS Housing
• Heavy Duty 6 Wire Cable
• Uses Standard 9 Volt Battery (Not Included)
• Works with ALL modern transceivers
Type: Amplified Electret Noise Cancelling
Frequency Response: See Frequency Response Curve on other side
Output Level: Open Circuit, -42 dB (0 dB = 1 Volt/microbar)
Impedance: 100 ohms (Matches all transceivers)
Connector: Available stripped and tinned or configured with 4 pin (DX1) or 5 pin (DX2) DIN.
Cable: Six wire, five conductors, one conductor shielded, coil cord. Can be wired to any 3, 4, 5 or 6 wire system.
Housing: Durable high impact molded Black ABS
Battery: Standard 9 Volt Battery (Not Included)
Current Drain: 1.5 mA average
Size: 100 mm (3 15/16") high x 75.4 mm (3") wide
Weight: 175 grams (6.2 oz.)
All ROAD DEVIL (RD-104E) microphones are audio tested and inspected prior to shipment. Our absolute commitment to quality insures that ASTATIC microphones remain the Best Value in today’s competitive industry.

Battery Replacement
Remove the rear housing by removing the four screws. Carefully lift off the rear housing. Unsnap the battery from the battery clips located on the small vertical pc board and install a new battery. Note that the wires from the coil cord should lay on top of the battery after it is installed. Carefully replace the rear housing ensuring the gain control knob passes through the hole in the housing and fasten with the four screws previously removed. Be careful not to overtighten the four screws.
Gain Adjustments
For best noise cancelling operation, hold the microphone close to your mouth and set the mic gain as low as possible. On initial setup, it is good practice to turn gain completely down. After turning on the transmitter, slowly turn up the gain to desired modulation level.
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