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W2IHY 8 Band Audio Equalizer and Noise gate

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W2IHY 8 Band Audio Equalizer and
Non in magazzino, di nuovo disponibile en 50 giorni.
W2IHY Technologies
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Get a W2IHY 8 Band Audio Equalizer and Noise gate ... and get ready for compliments!

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.


Finally, professional audio processing technology is applied to the unique requirements of amateur radio operators! The W2IHY 8 Band Audio Equalizer and Noise Gate is an easy-to-use, sophisticated unit loaded with high-performance features. This thoughtfully-designed, quality- constructed station accessory performs three important functions, all in one good looking, low- profile package:

The Audio Equalizer gives you sophisticated control of the tonal qualities of your microphone and, thus, of your transmit audio quality. The range of equalization possibilities is virtually unlimited, letting you custom-tailor your audio just the way you want.
The Noise Gate is the long-needed solution for noisy operating environments. Background noises that used to make copy difficult or unpleasant on the other end of the QSO are eliminated or greatly reduced.
The Universal Microphone and Radio matching capabilities are terrific. Match practically any microphone of any impedance to practically any radio's microphone input. Adjust the wide-range input level for optimum drive to the built-in microphone amplifier. Adjust the output to give your radio the ideal signal level for best performance of microphone gain, alc, compression and smooth VOX operation. A comprehensive selection of microphone jacks means plug and play for most microphones. Instant microphone compatibility with Yaesu, Kenwood and Icom microphones via a 3 position switch.

Continue on to find out more about the transmit audio accessory that is delighting audio-conscious hams everywhere. Not responsible for drool on keyboards. But we are responsible for some of the most outstanding SSB, AM and FM audio on the amateur radio bands worldwide!

Product Specifications

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.
Built-In Headphone Monitor
Produces ample high-quality audio for making Equalization and Noise Gate adjustments
1/4" rear panel stereo jack
Front panel volume control
Operating Environment
Designed specifically for amateur radio use adjacent to transmitters and linear amplifiers
Extensive RFI protection
Black finish with white lettering. Attractive in any shack
8" Wide x 3" High x 7.25 " Deep
76mm x 203mm x 195mm
7-14V (100ma) wall transformer provided
LED indicator and on/off switch
30 day no questions asked money back guarantee
3 year parts and labor warranty
Free technical support


Connecting to Microphones and Radios 

This switch lets you plug and play Icom, Kenwood and Yaesu 8-pin microphones. Optional adapters are available for all other 8-pin and 4-pin microphones.

This switch lets you plug and play Icom, Kenwood and Yaesu 8-pin microphones.  Optional adapters are available for all other 8-pin and 4-pin microphones.






The W2IHY 8 Band Audio Equalizer and Noise Gate interfaces between your microphone and your transmitter. And it does this intelligently. A 3 position switch on the rear panel lets you choose between Icom, Kenwood and Yaesu microphones. Simply plug in your microphone and set the rear panel switch. Now your microphone audio output is reaching the system's input stage. And at the same time,  your microphone's push to talk control is passing through and will appear on the output. Adapters are available for all other 8 pin and 4 pin microphones.

What if you like to use many different types of microphones? Then you'll appreciate the Universal Microphone and Radio matching capabilities. The system will accommodate 200 ohm, 600 ohm and high-impedance microphones. So you can use anything from a professional $10,000 Neumann studio microphone to a $10 crystal mic you found at a hamfest! There are a total of 3 microphone input jacks on the rear panel including 8-pin, XLR and RCA phono. W2IHY even provides the 5 volt power requirements for models such as HM12 and SM6 electrets and other microphones requiring phantom power.

Another thoughtful touch: Some microphones, especially professional studio models, do not include push to talk capability. W2IHY gives you a rear panel push to talk (PTT) jack. Use this to connect a foot switch or other control. The PTT control circuit will now reach the radio via the cable described below.

The dual output side of the system consists of two 5-pin DIN jacks to hook up two radios at once, if you choose. Switching from one radio to another is very convenient. A rear panel switch lets you choose between output "a" and output "b". To connect the output to your radio, you will need the correct cable for your radio. These are available for $30.00 each. Be sure to specify radio make and model when ordering.

Classic rig owners, we didn't forget about you! If your transmitter microphone input calls for high impedance, no problem. A high impedance wiring option appears on the output jacks. It's a new day with your old rig, because now you are not limited to using just high impedance microphones. 

Simply set the W2IHY system input for any type of microphone you want to use.  Yes, it is likely you'll have that transmitter sounding better than it did when it was new!


Adjusting Input and Output Audio Levels

With your microphone connected to the W2IHY 8 Band Audio Equalizer and Noise Gate and the correct cable connected to your radio, you are now ready to adjust system input and output levels for optimum performance. Start by referring to the operating manual for input impedance options and select the appropriate impedance for your microphone. (Units are shipped in the 600 ohm input configuration). While speaking into the microphone adjust the MIC IN GAIN control on the bottom panel until the red MIC LED on the front panel just barely lights up. This control has a wide range to accommodate microphones with high or low signal output. Microphones that didn't properly drive your radio before will now!

Similarly, the MIC OUT LEVEL control on the bottom panel lets you adjust the audio signal level sent to your radio's microphone jack. Use this to provide your radio with the ideal microphone signal level. Now you have optimum performance of mic gain, alc and compression controls. This not only makes for better sounding transmit audio but often improves VOX operation. Already, you have improved operating performance of your microphone and your radio. And you haven't even started on the high-quality Equalization and Noise Gate features!

Equalization Overview

Everyone is familiar with the simple tone control on broadcast receivers and stereo equipment. As consumer electronics technology advanced, the general public was introduced to a more sophisticated tone control, the graphic equalizer. It is called a graphic equalizer because the physical position of the slide pots gives a graphical view of what is happening electrically. You will be using the W2IHY graphic equalizer to increase (boost) or decrease (cut) the signal level at various frequency values (or bands). Boosts or cuts are made to suite personal tastes of the user. 

Broadcast engineers and recording studio technicians consider equalization (called EQ for short) to be one of the most important tools in ac

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