Kenwood AUDIO PROCESSOR Musical Instrument User Manual
Contents
1. TEN TEC ORION Audio Audio PTT GND 4 Pin Mic Connector Pin 3 4 Pin Mic Connector Pin 2 4 Pin Mic Connector metal shell 4 Pin Mic Connector Pin 1 Shield of Cable Shield of Cable Shield of Cable Shield of Cable Shield of Cable Shield of Cable DIN connectors shown on the side to be soldered DO NOT SOLDER TO SHIELD OF DIN Power GND 7 to 14V dc 23 AUDIO OUT CABLE WIRING DIN connectors shown on the side to be soldered DO NOT SOLDER TO SHIELD OF DIN HI Z LOW Z TRS BALANCED OUTPUT LOW Z UNBALNCED 1 4 MONO CONNECTOR LOW Z Single channel Input to Computer Sound Card HI Z TRS BALANCED OUTPUT LOW Z LOW Z LOW Z HI Z LOW Z Audio Audio Audio Audio Audio Audio Audio Audio GND GND GND GND Shield of Cable Shield of Cable Shield of Cable Shield of Cable LOW Z XLR BALANCED OUTPUT HI Z XLR BALANCED OUTPUT Audio Audio Audio HI Z Audio GND GND Shield of Cable Shield of Cable 1 2 3 1 2 3 242. Audio Audio Balanced Output Hi Z Output AUDIO OUT 1 2 3 5 Pin Male DIN Din connectors shown on side to be soldered 7 to 14V GND Power 5 Pin Male DIN Din connectors shown on side to be soldered 16 GETTING STARTED TUTORIAL Before plugging the power transformer into the wall preset the EQplus controls as indicated Power Equalizer Compressor Downward and Effects Processor all off urn the Mic Select to select the microphone you will be using If you are not using a mic but an external audio source like a W2IHY EQ connect your audio source into the Aux Input If you are using a W2IHY EQ then connect a cable between the Mic Out of the EQ and the Aux Input of the EQplus Plug the power transformer power cube into the wall and into the Power connector of the EQplus Attach the audio cable between your transceiver transmitter and the Audio Out of the EQplus If you are using a mic into the EQ plus and you are using an electret mic such as an ICOM Hm12 Hm36 Sm6 or a Heil Mic made for ICOM radios then turn the front panel Audio Input Mic Pwr switch on Set the Audio Input impedance 4 for the impedance of the mic that is connected into the MIC IN Most amateur radio mics are 600 ohms Adjusting the Audio Input Level using a Mic into the EQplus Connect your microphone into the Mic In rear connector T If you are using a W2IHY 8 Band EQ or other audio device into the EQ plus make sure the front p
3. R12 This potentiometer when turned clockwise can increase the Audio Input signal levels up to about 40dBv The mic gain should be changed while speaking into the microphone until 3 or 4 green Bar Graph 7 LED s are illuminated Audio levels should be maintained in the green and yellow ranges of the LED Bar Graph 6 6 LED Bar Graph The 10 segment LED Bar Graph indicates peak to peak EQplus internal audio levels The position of the Equalizer 7 and Compressor Downward Expander 10 switches control what internal function is being indicated The tables below defines what the LED Bar Graph is indicating The pictorial below shows the EQplus Audio Chain EQplus BAR GRAPH MONITORING Compressor Equalizer Bar graph monitoring off off Output of Audio Amp off on Output of Equlaizer on off Output of Compressor on on Output of Compressor dB reading Peak to Peak voltage 0 1 Volt 6 500 mv 12 250 mv 24 125 mv V V V V V V V V V Audio Amp Dual Band EQ BAR GRAPH Comp Dwrd Expd EFFECTS PROC ON OFF Audio Out AUDIO AMP Audio IN ON OFF ON OFF EQplus AUDIO CHAIN FRONT PANEL CONTROLS 7 Equalizer On Off Switch S3 This switch turns the Equalizer on and off When the equalizer is off adjusting the bass and treble controls have no effect on the output audio 8 Equalizer Bass R37 This rotary potentiometer work
4. 1 2 3 5 Pin Male DIN AUDIO OUT 1 2 3 5 Pin Male DIN AUDIO OUT 1 2 3 5 Pin Male DIN AUDIO OUT 1 2 3 5 Pin Male DIN Din connectors shown on side to be soldered Gnd Audio cable shield PTT Audio Audio Balanced Output Din connectors shown on side to be soldered Gnd Audio cable shield PTT Audio Unbalanced Output 1K Ohm Din connectors shown on side to be soldered Gnd Audio cable shield PTT Audio 1K Ohm Din connectors shown on side to be soldered Gnd Audio cable shield PTT HI Z DIN connectors shown on the side to be soldered DO NOT SOLDER TO SHIELD OF DIN AUDIO OUT CABLE WIRING AUDIO OUT CABLE WIRING 22 Alinco DX77 Kenwood TS130 140 TS430 440 TS850 TS870 TS930 940 950 SG2020 K2 Japan Radio JST 135 JST 245 Yaesu FT990 ft992 FT1000MP M V Mic PTT GND ICOM 735 745 746 756 756 PRO 775 781 KACHINA Gnd PTT Mic Gnd Gnd PTT PTT Mic Mic Mic Mic Mic Mic 8 Pin Mic Connector Pin 8 8 Pin Mic Connector Pin 5 8 Pin Mic Connector Pin 3 8 Pin Mic Connector Pin 1 8 Pin Mic Connector Pin 1 8 Pin Mic Connector Pin 7 8 Pin Mic Connector Pin 5 8 Pin Mic Connector Pin 6 Shield of Cable Shield of Cable Shield of Cable Shield of Cable 8 Pin Mic Connector Pin 2 8 Pin Mic Connector Pin 2 8 Pin Mic Connector Pin 6 8 Pin Mic Connector Pin 7 8 Pin Mic Connector Pin 7 8 Pin
5. modify internal EQplus audio The toggle switch in position 1 selects Effect 1 Effect 1 emulates dampening sound reflecting multiple times from a surface The toggle switch in the position 2 selects Effect 2 Effect 2 emulates sound reflecting once from a surface 8 FRONT PANEL CONTROLS 14 EFFECTS PROCESSOR DELAY Potentiometer R42 This potentiometer works only if the Effects Processor 3 position toggle switch is selecting either effect 1 or effect 2 The Delay control when rotated clockwise increases by up to about 80 milliseconds the time that audio waveform is delayed The delayed waveform is then mixed with the original non delayed waveform The mixed waveform is next sent to the output of the EQplus When the pot is turned clockwise at the halfway point there is a detent This represents a starting point for adjusting the Effects Processor Delay 15 EFFECTS PROCESSOR LEVEL Potentiometer R47 This potentiometer works only if the Effects Processor 3 position toggle switch is selecting either effect 1 or effect 2 The Level control when rotated clockwise increases the amplitude that the delayed audio waveform is combined with the original non delayed waveform When the pot is turned clockwise at the halfway point there is a detent This represents a starting point for adjusting the Effects Processor Level 16 OUTPUT LEVEL Potentiometer R44 This potentiometer varies the output level from about 10 millivolts to
6. reference point for easy to use amateur radio audio equipment If I did not think you would be delighted with The EQplus I would have not put my call sign on it Thanks for your purchase and we appreciate your business Julius D Jones W2IHY INTRODUCTION EQplus AUDIO PROCESSOR 5 FRONT PANEL CONTROLS 1 2 6 This section describes each of the controls on the front panel You should read through this section now Some of the descriptions will be more meaningful after you first work through the Getting Started Tutorial 1 Power On Off Switch S1 This switch turns the unit s power on and off 2 Power on LED LED1 This LED goes on when power is on in the unit 3 Audio Input Mic PWR Power Switch S6 Turning this switch on puts 5V onto what is plugged into the Mic In and Aux Input connectors The Mic power switch must be on if you have any of the following microphones connected directly into the EQplus ICOM HM12 HM36 SM6 etc Heil microphones made specifically for ICOM radio s such as the HMI and ICM Elecract MH2 made for the Elecraft radio by Heil Sound 7 11 12 10 17 16 5 14 15 13 8 4 9 3 FRONT PANEL CONTROLS 6 4 Audio Input Impedance Switch S5 This 3 position toggle switch is used to change the input impedance of the Mic and Aux Inputs 19 20 amp 21 Input Impedances of 200 ohms 600 ohms and 50K ohms HI Z may be selected 5 Mic In Gain
7. Mic Connector Pin 1 8 Pin Mic Connector Pin 8 Yaesu FT102 FT747 757 767 FT847 FT1000 1000D Mic PTT GND Mic 8 Pin Mic Connector Pin 6 8 Pin Mic Connector Pin 7 Shield of Cable 8 Pin Mic Connector Pin 8 ICOM BALANCED MODULATOR 746 756 756 PRO 775 781 910H Mic PTT GND Mic 8 Pin DIN Connector Pin 3 8 Pin DIN Connector Pin 2 Shield of Cable 8 Pin DIN Connector Pin 4 DIN connectors shown on the side to be soldered DO NOT SOLDER TO SHIELD OF DIN AUDIO OUT amp POWER CABLE WIRING DRAKE TR7 DRAKE T4XB COLLINS 32S 1 32S3 COLLINS KWM2A COLLINS 32V2 32V3 Hallicrafters E F Johnson HI Z HI Z Yaesu FT101E FT901DM Galaxy Kenwood TS520 TS530 TS820 TS830 Audio Audio Audio Audio Audio Audio Audio Audio Audio Audio PTT PTT PTT PTT PTT GND GND GND GND GND 4 Pin Mic Connector Pin 2 4 Pin Mic Connector Pin 3 4 Pin Mic Connector Pin 2 4 Pin Mic Connector Pin 3 4 Pin Mic Connector Pin 1 4 Pin Mic Connector Pin 3 4 Pin Mic Connector Pin 1 2 Pin Mic Connector Pin 1 2 Pin Mic Connector Pin 2 2 Pin Mic Connector Spring Case 4 Pin Mic Connector Pin 2 4 Pin Mic Connector Pin 1 4 Pin Mic Connector Pin 4 4 PIN TEN TEC EXCEPT ORION Audio Audio PTT GND 4 Pin Mic Connector Pin 3 4 Pin Mic Connector Pin 2 4 Pin Mic Connector Pin 1 Shield of Cable
8. OPERATING MANUAL EQplus AUDIO PROCESSOR September 2004 Julius D Jones 19 Vanessa Lane Staatsburg N Y 12580 845 889 4253 E mail Julius W2IHY COM Home Page http www w2ihy com c 2004 W2IHY ALL RIGHTS RESERVED 2 TECHNOLOGIES W2IHY EQplus AUDIO PROCESSOR OPERATING MANUAL TABLE OF CONTENTS Introduction 4 Front Panel Controls 5 9 Rear Panel Controls 10 11 Schematic Front Panel 12 13 Schematic Rear Panel 14 Rear Panel Controls 15 Getting Started Tutorial 16 19 Internal Wiring 20 Audio Out Cable wiring 21 24 3 4 The EQplus is the next generation of audio processing equipment from W2IHY Technologies The EQplus was designed to be directly attached to the world famous W2IHY 8 Band EQ The EQplus provides features such as Audio Compression Downward Expansion Effects and connectivity to 3 radios All these features and more were designed in a way that makes the EQplus easy to use Extensive testing was done by amateurs on many different radios on AM FM and SSB so that the product would be ready for you to use problem free Buying the EQplus gives you the availability to Amateur Service unrivaled in the hobby We feel so confident that you will be delighted with the EQplus that we offer a 30 day money back no questions asked guarantee The EQplus represents the new
9. about 1 volt peak to peak 17 Monitor Mon LEVEL Potentiometer R39 This potentiometer adjusts the audio level into the Phones Connector 24 9 REAR PANEL CONTROLS 19 18 22 20 23 24 21 22 25 18 MIC SELECT This three position switch selects the YAESU KENWOOD or ICOM microphone plugged into the 8 pin Mic Input 19 Other microphones supported with mic adapters 19 MIC INPUT This Input uses an 8 Pin microphone male connector The impedance of this input is set by the Audio Input 3 position toggle switch 4 Do not use this connector when RCA Mic In 20 or the Aux Input 21 is being used Icom Ken Yaesu Mic Mic 5V PTT 5V PTT 5V PTT Gnd Mic Gnd Gnd Mic 1 2 5 6 7 8 J8 Pin PTT PTT Gnd Gnd 10 REAR PANEL CONTROLS 11 20 MIC INPUT This RCA female connector is used as a microphone input This connector works independent of the Mic Select switch 18 and may be used for another audio input source such as a microphone The impedance of this input is set by the Audio Input 3 position toggle switch 4 21 AUX INPUT This 5 Pin Din connector allows audio to be brought into the EQplus from an external device This connector works independent of the Mic Select switch 18 and may be used for another audio input source such as a W2IHY 8 Band EQ The impedance of this input is set by the Audio Input 3 position toggle switch 4 22 PTT INPUT This female RCA c
10. anel Audio Input Mic PWR Switch 3 is off Set the Audio Input impedance 4 to 600 ohms Turn on the power on the 8 band EQ and the EQ plus Connect a mic into the EQplus 8 pin MIC IN Connector 19 Turn the rear mounted Mic Select switch 18 to the correct manufacturer the mic is wired for Yaesu Kenwood ICOM While talking into your mic adjust the Audio Input Gain 5 so that 2 or 3 Green LED s on the bar graph light up Adjusting the Audio Input Level using a W2IHY 8 Band EQ into the EQplus Turn on the power on the 8 band EQ and the EQ plus Connect a mic into the 8 Band EQ While talking into your mic adjust the GETTING STARTED TUTORIAL 17 Audio Input Gain 5 so that 2 or 3 Green Bar Graph LED s light up This may require adjusting both the Mic Gain control on the 8 Band EQ and the Audio Gain control on the EQplus Using The EQplus headphone PHONES Monitor Connect a set of stereo headsets into the 1 4 inch Phones Connector located in the back of the EQplus Talk into the mic to hear audio coming from the EQplus Adjust the headset volume by turning the front panel Monitor Level control 17 Adjusting an External Equalizer connected to the EQplus If you are using an external audio device such as a W2IHY 8 Band EQ use the same equalizer settings you were using prior to using the EQplus Adjusting the EQPlus Dual Band EQ Turn the Equalizer Switch 7 on Turning the Treble potentiometer 9 clockwis
11. e up will increase the amount of high frequencies present in the Audio Out 23 The detent midway through the rotation is 0dB gain point Turning the Bass potentiometer 8 clockwise will increase the amount of low frequencies present in the Audio Out 23 The detent midway through the rotation is the 0dB gain point Experimentation will be required to determine the optimal settings for the Equalizer USING THE COMPRESSOR DOWNWARD EXPANDER With the Compressor Downward Expander off the audio level as seen on the LED Bar Graph should be adjusted so that 2 or 3 green LED s are on This level may be adjusted using the Audio Input Gain control 5 Turn the Compressor Downward Expander on 10 Turn the DE Downward Expander control 12 fully counter clockwise This will effectively turn the Downward Expander off 18 GETTING STARTED TUTORIAL Turn the Compressor control 11 fully counter clockwise This setting passes uncompressed audio thru the compressor Turning the compressor control clockwise increase the amount of compression Set the compression to the desired level You can turn the compression levels up to a point where talking into the mic causes the RED Limiting LED to come on The Red LED coming on indicates that additional increases in audio signal levels into the compressor will result in minimal signal level increase at the output of the compressor Limiting of audio signal levels occur when the Compresso
12. onnector is for push to talk control A foot switch or other device may be connected Grounding the center of the connector grounds the push to talk line on the selected Audio Output 22 OUTPUT SELECT This three position rotary switch directs audio to one of 3 5 Pin DIN connectors Output1 Output 2 or Output 3 Gnd PTT AUDIO IN Audio IN AUX INPUT 5 Pin Male DIN Din connectors shown on side to be soldered 15 REAR PANEL CONTROLS 23 AUDIO OUTPUTS 1 2 and 3 The audio output and PTT outputs of the EQplus uses these 5 pin DIN s When the Audio Output Rotary switch 22 is in the 1 position audio is active at Audio Output 1 When the Audio Output Rotary switch 22 is in the 2 position audio is active at Audio Output 2 When the Audio Output Rotary Switch 22 is in the 3 position audio is active at Audio Output 3 The diagram below shows the configuration of each of the 3 outputs 24 PHONES This 1 4 Stereo headphone connector can be used to monitor audio from the EQplus The output level of this connector is controlled by the Monitor Level control 1 Important Unless headphones using 1 4 stereo connectors are used the EQplus monitor will not operate properly An inline adapter should be used with headsets that do not use 1 4 stereo connectors Stores like Radio Shack have such adapters available 25 Power 5 Pin Din connector 7 14 VDC input at 100 ma Gnd PTT
13. r is on and the internal audio signals exceed 9db first yellow LED on The EQplus creates no perceptible distortion to audio that is heavily compressed The Downward Expander 12 can be used to reduce background noise The EQplus monitor may be used to assist in adjustment of the Downward Expander Connect your stereo headsets into the rear panel 1 4 stereo Phones connector 24 Listen to audio from the EQplus while talking into the mic Adjust the front panel Monitor Level control 1 to a comfortable listening level When you are not talking listen in the headsets for background noise Turn the DE LEVEL Downward Expansion control 12 clockwise You should hear the background noise level reduce as you turn this control clockwise As you continue to turn the control knob clockwise there will be a point where the background noise will disappear At the point where the background noise disappears talk into your mic to make sure you have not turned the Downward Expander control too far Turning the control too far will result in choppy and or distorted audio If the monitored audio is choppy or distorted then turn the Downward Expander knob counterclockwise until the audio heard is clear ADJUSTING THE EFFECTS The EFFECTS PROCESSOR adjusts audio to add resonance and ambiance The Delay control 14 sets the time that audio is delayed before it is mixed back into the non delayed audio The Level control 15 sets the amplitude that the a
14. s only when the Equalizer Switch 7 is on Turning this control clockwise increases the amount of bass boost Turning this control counterclockwise decreases the amount of bass boost The detent at the half way point of rotation represents 0 dB of boost Each case marking represents 4dB 9 Equalizer Treble R38 This rotary potentiometer works only when the Equalizer Switch 7 is on Turning the control clockwise increases the amount of treble boost Turning this control counterclockwise decreases the amount of treble boost The detent at the half way point of rotation represents 0 dB of boost Each case marking represents 4dB 10 Compressor Downward Expander On Off Switch S2 When the switch is in the off position the compressor and downward expander have no effect on the EQplus s audio 11 Compressor Downward Expander COMPRESSOR COMP POTENTIOMETER R22 This potentiometer works only if the Compressor Downward Expander switch 10 is on The COMP potentiometer controls the amount of compression that will be done by the unit If the COMP potentiometer is turned fully counterclockwise then there will be no compression introduced 0 dB to incoming signals If the COMP potentiometer is rotated fully clockwise then 7 FRONT PANEL CONTROLS Incoming signals will have up to 20dB of compression introduced The EQplus compressor circuitry contains a limiter that is preset at the factory The limiter is set to limit the proce
15. ssed signals to 375 millivolts 9 dB When this level is reached the 1 st yellow LED on the bar graph will be on and the top Red Limiting LED will turn on Additional increases in audio level using either the Audio Input Gain Potentiometer or the Equalizer Potentiometers will result in a small increase in output from the compressor s circuitry The good news is that the EQplus can produce high levels of compression while maintaining fidelity and very low distortion levels The RF compressors in many radio s have difficulty attaining high levels of compression with low levels of distortions RF compressors roll off the low end audio response of the signals they process The net result of the EQplus compressor is up to 20dB of signal compression with very low distortion and little to no change in overall audio bandwidth 12 Compressor Downward Expander Downward Expander Level DE LEVEL POTENTIOMETER R47 This potentiometer works only if the Compressor Downward Expander switch 10 is on The Downward Expander removes unwanted audible sounds such as fan noise The Downward Expander is operated by turning the DE LEVEL Control clockwise just to the point where unwanted sounds are removed 13 EFFECTS PROCESSOR PROGRAM SELECT OFF SWITCH S4 This 3 position toggle switch is used to select one of two effects or to turn the Effects Processor off When the Effects Processor is off the Effects Processor Delay and Level controls will not
16. udio delayed by the Effects Processor combines with the non delayed audio Through experimentation the user can find what Effects Processor Delay and Level settings are best for their voice characteristics Both the Delay and Level controls have detents half way through the rotation of the control The detents may be used as a starting point for adjusting the Effects Processor Controls The Effects Processor creates 2 different effects Program 1 Effects Processor toggle switch 13 up towards 1 simulates audio reflecting from a surface multiple times Program 2 Effects Processor toggle switch 13 selecting 2 simulates audio reflecting from a surface once With your radio connected to the EQplus adjust the Output Level control 16 to a level that properly drives your radio Turning the Output Level control clockwise increases the output of the EQplus Turning the Output Level counterclockwise decreases the output of the EQplus GETTING STARTED TUTORIAL 19 MIC IN PIN 1 PIN 7 INTERNAL WIRING 20 21 AUDIO OUT 1 2 3 5 Pin Male DIN Din connectors shown on side to be soldered Gnd PTT Audio Audio Balanced Output Hi Z Output Low Impedance Balanced Output to Low Impedance Radio 5 PIN DIN AUDIO OUTPUT CONNECTION Low Impedance Unbalanced Output to Low Impedance Radio Low Impedance Unbalanced Output to High Impedance Radio High Impedance Unbalanced Output to High Impedance Radio AUDIO OUT
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