


You can adjust 8 bands of Equalization to give your transmit audio that rich, full, wide-band quality ideal for rag chewing.
You can adjust Equalization for an extra edge in contest and dx work. Have pileup busting penetrating audio with substantial high frequency content.
You can fine-tune your microphone for more natural reproduction of your voice.
You can make good microphones sound great and poor microphones sound good.
You can change Equalization settings instantly to switch from one audio "personality" to another.
You can match most any microphone to any radio, new mics/old mics, new radios/old radios.
You can boost low-output microphones to work great with your radio.
You can use the Noise Gate to get rid of background noise and give your signal more presence.
You can use the Noise Gate to improve VOX operation by reducing false triggers.
You can switch Equalization on or off. You can switch the Noise Gate on or off.
You can connect the 8 Band EQ to the EQ Plus !
8 Band Audio Equalizer For Transmitter Microphones
• 8 bands of equalization independently adjustable +/- 16dB
• 50, 100, 200, 400, 800, 1600, 2400, 3200 Hz
• Smooth-action slide potentiometers
• EQ settings can be changed instantly
• Equalizer bypass switch (on/off)
Extremely Effective Noise Gate Eliminates Background Noise
• Adjustable threshold (level control)
• Adjustable decay for smooth trailing edge (delay control)
• LED level indicator
• Noise Gate bypass switch (on/off)
Microphone Input Connections
• Wide range of connectors rear panel accessible
• 8-pin mic connector with 3-position switch selects ICOM, KENWOOD, YAESU microphones Adapters available to support all other 4 and 8 pin microphone jacks
• XLR female connector
• RCA phono connector
• Selectable microphone input impedance 200 ohm, 600 ohm, HI-Z
Microphone Input Gain
• Wide-range input level control adjusts internal microphone amplifier gain
• LED indicator facilitates gain adjustment
• When used with a Heil cartridge provides >20 times the output to better drive your transmitter
Microphone Phantom Power Voltage Jumper
• For use with HM12, SM6 electrets and other microphones requiring phantom power
• Provides 5VDC to the microphone cartridge
• Accessible from the bottom of the case
Dual Selectable Microphone Outputs
• Allows connection to two different radios if you choose
• Adjustable output level control for ideal drive level to transmitter microphone input
• LOW-Z balanced and unbalanced outputs for modern equipment
• HI-Z output for classic rigs
• 5-pin DIN connectors
PTT input (RCA jack)
• Adds push to talk control for non-PTT microphones
• Rear panel accessible independent PTT input. Can be used with foot switch, etc.

Here comes the magic! You've done this on your stereo to make it sound the way you want. Now do it with your transmitter to get the kind of on-air transmit audio you want! First, a general description of the various bandpass frequencies:
BRILLIANCE, SPARKLE, CLARITY & PRESENCE: 3200, 2400, 1600 Hz
WARMTH & NATURALNESS: 800, 400 Hz
HEAVINESS, WEIGHT & BIG BOTTOM: 200, 100, 50 HzWith the unit properly connected and Power on, turn the Equalizer Switch on. Set all 8 equalizer slide pots to 0dB, observing the calibrations on the case. Using good headphones plugged into the PHONES jack on the rear panel, adjust Monitor Volume for a comfortable listening level as you speak into the microphone. We recommend that you start making your adjustments at the highest audio frequency (3200Hz) and, one by one, move to the next lowest frequency band. The built-in Monitor provides ample, high-quality audio output to determine your equalization settings. Go ahead and experiment! The good news is, your possibilities are virtually unlimited. The bad news is that you may find many different settings you like and will have a hard time deciding which to use. W2IHY Technologies thought you might end up in that happy predicament and includes a set of handy reference charts to keep track of your preferred EQ settings. With the smooth-action slide pots you can change from one audio "personality" to another easily and quickly, in seconds.
For the most critical EQ adjustments, nothing beats listening to your actual transmit signal on a second receiver in the shack, using good quality headphones. This lets you get "up close and personal" with how your transmit audio really sounds. You will notice that very small adjustments to the slide pots can make meaningful changes. Many of our users conduct on-air adjustments, relying on friends with good ears. Of course this is best done under low-noise, high signal conditions.
The operator's manual offers Preliminary Equalizer Settings for a wide variety of popular radios and microphones in both Rag Chew and DX modes. This database is growing quickly and we will be adding it to W2IHY.COM in the future.
Rear of 8 Band EQ
