New Kid On The Block

Hookin up those Audio Boxes without gettin yourself Perplexed.
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KD5TTZ
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New Kid On The Block

Post by KD5TTZ »

Hello, Name here is Kyp, everyone calls me PuJo. Callsign is KD5TTZ, I am located in EM41. Hessmer Louisiana, about 35 mi, s.e. of Alexandria.
I am looking forward to learning the inns and outs of the HI-FI ssb/am audio. These are my components. Radio is a Kenwood TS-2000, Mic is an Audio-Technica AT4033a. Preamp is a Behringer Ultragain Pro MIC2200, and I have a few more items, Behringer Composer Pro MDX2200, Behringer Virtualizer Pro DSP2024P, Behringer Ultrafex Pro EX3200, Behringer Ultra-Q Pro PEQ2200, and last but not least is the Alesis Mulitmix 8 USB.
Now if you guys want to help me get things set up, I can start talking.
OH, I am not a Gen. class yet. Funny thing, I was studying the code, I went take the test and passed, what I didnt know was that I could take the written exam at the same time, I did not study for it, so I failed, but only by 5 questions. So, I will be taking the Gen. Class written exam week after next. Then we can get to a QSO, and get this thing set correct.
See you guys in the forums.
God Bless,
PuJo
KD5TTZ[/b]
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HOWDY !!!

Post by Voodoo Guru »

Howdy Kyp !!!
Damn glad to meet ya.
Sounds like ya got a good setup to get started.
Got to be irritatin to have all that Voodoo and
not be able to send it thru the air!
Be waitin fer ya on Late Night 3870 Mc.
We're sure we can get ya fixed up and started.
Take Care,
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:19 am, edited 1 time in total.
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Best Equipment Order?

Post by Voodoo Guru »

OK,
This is the order in which we would install the equipment Kyp, for the best performance, in our opinion.
We would also use XLR Balanced cables for all connections, (except for the inter-channel connection on the EX3200 which will use a TS Unbalanced cable).

We will be calling the Left Channel as 'Left Channel" even though some of the equipment will call it channel "A", same for the right channel = channel "B'".

Come from your Mic and go to the Left Channel Mic Input of the MIC2200 using a XLR Balanced Cable.
This is for the Amplification of the Microphone Level Audio to Line Level Audio.
Come out of the Left Channel Output of the MIC2200 and,

Come into the Left Channel Input of the MDX2200 using a XLR Balanced Cable.
We will be using the Left Channel of the Composer Pro as a Downward Expander (Noise Gate) only.
Come out of the Left Channel Output of the MDX2200 and,

Come into the Input of the PEQ2200 using a XLR Balanced Cable.
This of course will be the EQ.
Come out of the Outut of the PEQ2200 and,

Come into the Left Channel Input of the EX3200 using a XLR Balanced Cable.
Come out of the Left Channel Output of the EX3200 and
go into the Right Channel Input of the EX3200 using a
TS Unbalanced Connector cable (TS stands for Tip Sleeve).
This is to add the VOODOO component to the Audio.
This is described in depth on our web page at http://www.wz5q.net/index/rack_data/3200.htm
Come out of the Right Channel Output of the EX3200 and,


Come into the Right Channel Input of the MDX2200 using a XLR Balanced Cable.
This Right channel of the Composer Pro is used for Compression.
Come out of the Right Channel Output of the MDX2200 and,

Come into the Left Channel Input of the DSP2024P using a XLR Balanced Cable.
This Virtualizer Pro is used to get a "Wet" sound by adding depth.
It must be the last effects unit in the audio chain as it uses en 'Effects Tail' on the mix.
If there are any other units that process audio after it, they will destroy this tail.
This is described on my website at http://www.wz5q.net/index/rack_data/dsp2024.htm
Come out of the Left Channel Output of the DSP2024P and,

Now its gets a bit tricky.
You'll have to use the mixer here,
reason being is that you can't put a Line Level Audio into the Front Mic Input of the TS-2000.
Its too much and you will overload the radio mic circuits.
We have to be able to reduce the level.
We can use the 8USB for this.
Looking at the Manual for that unit, it looks like the best thing to try is to connect it in this way...

Come out of the Left Channel Output of the DSP2024P and,
Come into the "Line In 5/6" Left Channel of the 8USB with a TRS Balanced Cable.
You will be able to use the "Level 5/6" channel strip Level Control as the Gain adjustment to set the correct level for the TS-2000.
Be sure everything is 'neutral' on the EQ controls (12:00, straight up),
the AUX pre and post controls are full CCW,
the BAL control is at 12:00, straight up.
Come out of the Main Mix Left Channel of the 8USB and
goto the Front Mic input of the TS-2000.
You will probably have to make a cable for that.

Later, when you get everything adjusted correctly,
you can use the 8USB to send a audio line to the computer for recording,
and also accept an audio line from the computer for recording transmissions in the TS-2000.

Well, this is allot and the lawn needs to be mowed.
Let us know what ya think and how you want to set things up,
when we get that situated, then we'll help you set up the settings of the units to give you a starting point.
Its complicated at first, but after you play with it,
it gets easier.
Take Care,
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:22 am, edited 1 time in total.
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Settin up the Rack?

Post by Voodoo Guru »

OK Kyp,
Here are some settings you can try. We've noticed that there are No “Generic - one setting fits all” settings out there. They are all Voice, Equipment specific. There are starting points however. But it always entails hours of tweaking to get it “Just Right”.
We’ll give you initial settings for each unit, and then describe how to set the levels between them.

MIC2200 Settings:
Input these in to your 2200. We'll list the setting from Left to Right of the unit.
These settings will be a starting point from where we'll explain the controls and what to do with them.
Since you have a condenser mic, you will notice allot of background noise.
These mics are VERY sensitive. Be ready for it.
The downward expander in the mdx2200 will help with some of that.
You will need to use the XLR cables for the microphone plus the 48V phantom power in the mic pre to power it.

LEFT CHANNEL:
1) Set the “+48 V” IN, the light is “ON” (this supplies power to the microphone)
2) Set the “MIC/LINE” pushbutton IN, the light is “ON” (this turns on the MIC mode for the XLR)
3) Turn the “MIC GAIN” Control to the 9:00 o’clock position (this is just a starting point)
4) Set the “PHASE REV.” pushbutton OUT, Light is “OFF” (don’t need this)
5) Turn the Low Cut “Hz Frequency” Control to the 12:00 o’clock position (won’t be using this)
6) Set the “LO CUT” pushbutton OUT, Light is “OFF” (don’t need this)
7) Turn the EQ “Hz Frequency” Control to the 12:00 o’clock position (won’t be using this either)
8) Set the “x 10” pushbutton OUT, Light is “OFF” (don’t need this)
9) Set the “x 0.1” pushbutton OUT, Light is “OFF” (don’t need this)
10) Turn the “Octave Bandwidth” Control to the 12:00 o’clock position (don’t need this)
11) Turn the “db Level” Control to the 12:00 o’clock position (don’t need this)
12) Set the “EQ IN/OUT” pushbutton OUT, Light is “OFF” (don’t need this)
13) Turn the “db Output” Control to the 0db, 12:00 o’clock position (this is just a starting point)

You will notice that there are allot of features not being used on this unit.
Most of what is not being used here will be taken care of with the EQ.

RIGHT CHANNEL:
This channel will not be used.


MDX2200:

LEFT CHANNEL:

Expander/Gate Settings:
1) Turn the “THRESHOLD” Control to “OFF”, Full CCW. (We will set this later)
2) Set the “RELEASE” pushbutton IN, Light is “ON” (This will make for a SLOW release)
3) Turn the “RATIO” Control to “2.5”, 12:00 o’clock. (Good starting point)

Compressor/Limiter Settings:
1) Set the “SC EXT” pushbutton OUT, the light is “OFF”. (Not Used)
2) Set the “SC MON” pushbutton OUT, the light is “OFF”. (Not Used)
3) Turn the “THRESHOLD” Control all the way to the RIGHT, Clockwise. (This will deactivate the compressor as you will not be using it on the Left Channel)
4) Set the “INTERACTIVE” pushbutton OUT, the light is “OFF”. (Not Used)
5) Set the “SC FILTER” pushbutton OUT, the light is “OFF”. (Not Used)
6) Turn the “RATIO” Control all the way to the LEFT, CCW. (This will deactivate the compressor as You will not be using it on the Left Channel)
7) Turn the “ATTACK” Control all the way to the RIGHT, Clockwise. (This will deactivate the compressor, as you will not be using it on the Left Channel)
8) Set the “AUTO” pushbutton OUT, the light is “OFF”. (Not Used)
9) Turn the “RELEASE” Control all the way to the LEFT, Counter-Clockwise. (This will deactivate the compressor as You will not be using it on the Left Channel)
10) Turn the “OUTPUT” Control to the “0” position, 12:00. (This will be adjusted later to get the correct Input gain on the EQ)
11) Set the “I/O METER” pushbutton OUT, the light is “OFF”. (Just for now)
12) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this channel)


Peak Limiter Settings:
Turn the “LIMITER” Control all the way to the RIGHT, “OFF”.
(This will deactivate the Peak Limiter, as you will not be using it)

Coupler Settings:
Set the “COUPLE” pushbutton OUT, the light is “OFF”. (Not Used)


RIGHT CHANNEL:

Expander/Gate Settings:
1) Turn the “THRESHOLD” Control to “OFF”. (Not Used)
2) Set the “RELEASE” pushbutton OUT, the light is “OFF” (Not Used)
3) Turn the “RATIO” Control to “1”, CCW. (Not Used)

Compressor/Limiter Settings:
1) Set the “SC EXT” pushbutton OUT, the light is “OFF”. (Not Used)
2) Set the “SC MON” pushbutton OUT, the light is “OFF”. (Not Used)
3) Turn the “THRESHOLD” Control to “0”, about 2:00. (This will be the Starting point)
4) Set the “INTERACTIVE” pushbutton IN, the light is “ON”. (This will give a very nice smooth and transparent compression)
5) Set the “SC FILTER” pushbutton OUT, the light is “OFF”. (Not Used)
6) Turn the “RATIO” Control to “3:1”, about the 10 O’clock position. (This will be the best ratio to start with)
7) Turn the “ATTACK” Control all the way to the LEFT, Counter-Clockwise. (This will make the attack very quick)
8) Set the “AUTO” pushbutton OUT, the light is “OFF”. (Not Used)
9) Turn the “RELEASE” Control to about the 1:00 o’clock position. (This will give the release a slightly slow recovery)
10) Turn the “OUTPUT” Control to the “0” position. (This will be adjusted later to get the correct Input gain on the DSP2024P)
13) Set the “I/O METER” pushbutton OUT, the light is “OFF”. (Just for now)
14) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this channel)


Peak Limiter Settings:
Turn the “LIMITER” Control all the way to the RIGHT, “OFF”.
(This will deactivate the Peak Limiter, as you will not be using it)



OK, this is it for the MDX2200.
We'll tell you how to set it up later.
Lets preset the EQ.


PEQ2200:

1) Set the “I/O METER IN/OUT” pushbutton OUT, the light is “OFF”. (Just for now)
2) Set the “AUDIO IN/OUT” pushbutton IN, the light is “ON”. (This will engage this unit)
3) Turn the “db INPUT” Control to the “0” position. (This will be adjusted later to get the correct Input gain)
4) Turn the “Hz LOW CUT” Control all the way to the LEFT, CCW. (not used)
5) Turn the “Hz HIGH CUT” Control all the way to the RIGHT, CW. (not used)

BAND 1
1) Frequency Control = 80 Hz
2) Bandwidth Control = .8 octave
3) Gain Level = +4
4) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this filter)

BAND 2
1) Frequency Control = 160 Hz
2) Bandwidth Control = .5 octave
3) Gain Level = -10
4) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this filter)

BAND 3
1) Frequency Control = 400 Hz
2) Bandwidth Control = 1.8 octave
3) Gain Level = -8
4) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this filter)

BAND 4
1) Frequency Control = 1.6 KHz
2) Bandwidth Control = .4 octave
3) Gain Level = -4
4) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this filter)

BAND 5
1) Frequency Control = 3 KHz
2) Bandwidth Control = .8 octave
3) Gain Level = +7
4) Set the “IN/OUT” pushbutton IN, the light is “ON”. (This will engage this filter)

These are just starting points and you might not even like them.
We hit key frequencies, and they will have to be adjusted.
Each Frequency has its own peculiar effects.


EX3200:

Try these settings to start out with. The best place that we found to put the EX3200 is in between the EQ and the Compressor.

Channel 1:

Shift = set to Ultra Low (Light on)
Bass processor = set to "1"
Mode = set to Soft (light off)
Auto NR = set to IN (Light on)
NR Sensitivity = set to where the LED Display just barely goes to full scale on voice peaks
Tune = set to 3.3
Process = set to Exciter
High Mix = set to "1" (be careful with this as it will introduce "Tearing" into the audio if set to high)
Solo = set to OFF (Light is out)
IN = set to IN (Light is on)
Surround = set to IN (Light is on)
Surround = control set to "1-2"




Channel 2:

Shift = set to Ultra Low (Light on)
Bass = processor set to "2"
Mode = set to Soft (Light off)
Auto = NR set to IN (Light on)
NR Sensitivity = set to where the LED Display just barely goes to full scale on voice peaks
Tune = set to 5
Process = set to Enhancer
High Mix = set to "1" (be careful with this as it will introduce "Tearing" into the audio if set to high)
SOLO = set to OFF (Light is out)
IN = set to IN (Light is on)

OK, This aught to do it for the Voodoo Machine.
Now, on to the Virtualizer.


DSP2024P Settings:

Effect - PLATING (Shows "PLAT" on display)
Edit A - PRE.D = 0.010
Edit B - DECA = 2.358
Edit C - DAMP = 10
Edit D - SIZE = 33
Edit E - SHV.D = 32
Edit F - DIFF = 20
EQ Low - BASS = -10
EQ Hi - TREB = +16
MIX = usually around 8-15 using a single channel.


Now, for the 8USB.

8USB:

We should be using the “LEVEL 5/6” strip on this mixer.
Actually all were using it for now is a level control to drop the Line Level Signal down to Mic Level for the TS-2000 Front Mic Jack.
So this is what we think the initial levels would be a good starting point.

1) All EQ Knobs should be at 12:00 (straight up) on all the strips. Especially the “LEVEL 5/6” strip. These will not be used.
2) All AUX Knobs should be at full LEFT (CCW) on all the strips. Especially the “LEVEL 5/6” strip. These will not be used.
3) All PAN & BAL Knobs should be at 12:00 (straight up) on all the strips. Especially the “LEVEL 5/6” strip. These will not be used.
4) The “LEVEL 5/6” strip “LEVEL” knob (gain) should be at the 12:00 (straight up). This is a good starting point. If it’s too high, the PEAK LED will light up. If this happens turn the control to the Left until it doesn’t light up anymore.
5) The “AUX RETURN A LEVEL” Knob should be at full LEFT (CCW). This will not be used.
6) The “EFFECTS/AUX RET B LEVEL” Knob should be at full LEFT (CCW). This will not be used.
7) Set the “2 TK to MIX” pushbutton OUT. (Not used)
8) Set the “2 TK to CTRL ROOM” pushbutton OUT. (Not used)
9) The “MAIN MIX” Knob should be at 9:00. This is the control that will be adjusted to give the TS-2000 the correct amount of Audio. Consider this another Mic Gain Control.
10) The “HDPH/CTRL RM” Knob should be at full LEFT (CCW).


OK Kyp,
That takes care of the initial settings to get started. Now comes the fun part, the setting of the controls to get the desired effects.
First of all, you will need to set the gain levels between the units.
They should never peak over “0db” to avoid distortion. We keep ours at about “-3db”
The gain levels are of course set with the gain controls of the devices.
Some devices have an input control, some don’t.
Most have output gain controls, except for the EX3200 & the DSP2024P.

We will start with the MIC2200.
While your talking in a normal voice into the microphone,
Increase the MIC GAIN control to the right until you see the “CLIP” light illuminate.
Turn the control back to the LEFT until the CLIP light no longer illuminates, even when you get kind of excited and loud in the mic.
Then turn it back to the LEFT one more Click.
While you are talking into the mic, watch the LEVEL METER.
It should be peaking around –3 to 0db.
If its not, then turn the MIC Gain control until the peaks are –3db.
Let us know if you still get the Clip light lighting up under these conditions. It should not.
This is a tricky settings, as you really don’t want a lot of mic gain, this will bring up the background noise to an unacceptable level.
One trick is to run low mic gain, and then make up the output difference with the output gain control for the next unit.
Let us know what happens.

The mdx2200 has an INPUT/OUTPUT LED METER at the top of the unit, over each Channel to monitor the Input and Output Gain levels. This is switched with the I/O METER pushbuttons for each channel.
With the LEFT Channel I/O METER pushbutton pushed IN, Light is “ON”, this will show what the INPUT Gain level for Left Channel is. Increase the output of the MIC2200 Preamp, so that the INPUT/OUTPUT LED METER at the top of the unit over the LEFT Channel shows about “-3db” on voice peaks.
Now With the LEFT Channel I/O METER pushbutton pushed OUT, Light is “OFF”, this will show what the OUTPUT Gain level for Left Channel is. This is what will be going into the PEQ2200 EQ.
While monitoring the INPUT of the PEQ2200 EQ, adjust the LEFT Channel Compressor “OUTPUT” Control to get “-3db” INPUT gain on the PEQ2200.

The PEQ2200 has its own Input gain control, but no output control.
This makes it difficult to get the correct gain levels for the EX3200 because it doesn’t have any gain controls.
Just make sure the Input level of the PEQ2200 isn’t over –3db on voice peaks. It should show even lower than that on the output meter because of all the EQ cutting were doing. Don’t worry about that.
The next gain controls will be the RIGHT Channel of the MDX2200, which you will be using as a compressor.
With the RIGHT Channel I/O METER pushbutton pushed OUT, Light is “OFF”, this will show what the OUTPUT Gain level for RIGHT Channel is. This is what will be going into the DSP2024P.
While monitoring the INPUT of the DSP2024P, adjust the RIGHT Channel Compressor “OUTPUT” Control to get “-3db” INPUT gain on the DSP2024P.

This will give you a starting point.
Now, to set the Downward expander and the Compressor.
This is also assuming that you have your EQ already programmed with a curve.

We will set the LEFT Channel Downward Expander first.
Above the EXPANDER/GATE you will see 2ea LED’s. One is RED, and one is GREEN.
Adjust this expander while listening in the headphones also.
The trick is to adjust the “THRESHOLD” control to the LEFT (Counter-Clockwise) just until your background noise dies down. The RED “-“ LED will light up when that happens.
Whenever you talk into the mic, the GREEN “+” LED should light up and you should hear your audio.
When you quit talking, the RED LED should light back up and the GREEN LED will go out.
If you here it chopping up or cutting your syllables off…. you have too much “THRESHOLD” control engaged, back it to the right a bit.
Play with it until you get the best sound of your voice compared to the background noise being removed.

Check your Gains again for the PEQ2200 EQ INPUT on voice peaks.

We will set the RIGHT Channel Compressor now.
Everything is already preset. The only thing that is left is to adjust the “THRESHOLD” control to the LEFT while watching the “GAIN REDUCTION” LED’s. Turn this control until you get about
“6db” to “8db” on Voice PEAKS indicated on the “GAIN REDUCTION” LED’s.
If you are still hearing “Tearing” of the high Frequencies, Either turn in more “THRESHOLD” to the LEFT, or increase the “RATIO” a little bit to the RIGHT, until the tearing stops. You should not have more than about “10db” of Gain Reduction showing on the LED’s.
If it is still tearing, make sure the “HIGH MIX” controls on the EX3200 are not past the “1” setting, then turn down the gain on the High Freq. of the EQ a few DB.

The last thing to check will be the INPUT gain of the DSP2024P.

With the RIGHT Channel I/O METER pushbutton pushed OUT, Light is “OFF”, this will show what the OUTPUT Gain level for RIGHT Channel is. This is what will be going into the DSP2024P.
While monitoring the INPUT of the DSP2024P, adjust the RIGHT Channel Compressor “OUTPUT” Control to get “-3db” INPUT gain on the DSP2024P.

That should get you started Kyp.
We hope this helps you. We did not go into all the theory or anything like that as it is all available on the internet. This is just the bare bones set up.
Told ya it’s a bit overwhelming!
This is just the starting point. You will have to play with it allot until it is right.
That’s the fun of it.
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:27 am, edited 1 time in total.
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You got it.

Post by KD5TTZ »

Ok, Its up and running now. I think I adjusted everything to the specs you gave. It sounds good here. But, If I monitor through the headphone out on the mixer it sounds great, if I use the headphones on the radio, and monitor my transmit, it sounds different, not as good. I checked my TX EQ, and it is set to off. Does the RX EQ come in to play when I have the unit in TX monitor? I do have this RX EQ on to FPass, but it just doesnt sound right.
Is there somethng that I am doing rong? Let me know what you think.
Have a great week.
PuJo
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TX Difference

Post by Voodoo Guru »

Kewl Deal Kyp,
That is a normal condition.
When you listin to the headphone output on the mixer, you are hearing the entire Frequency Bandwidth of your voice.
Probably from about 60cps to about 8kc.

When you listin to the Monitor on the TS-2000, you are hearing what is close to being Transmitted at a reduced Frequency Bandwidth.
This is because the Transmitter does not Transmit the Audio at a true 'Flat' Frequency Response.
It is also being limited by the Mic Audio Amp circuitry, the DSP, and the IF Filters to about a 100cps to 3Kc Bandwidth.
(Not to mention the Monitor Circuit isn't all that great.)

This is the reason we are using the EQ.
This unit will help to pre emphasize the audio to where the Rig can transmit it it relatively 'Flat'.
You will have to tweak the EQ to make your voice sound the "Best" it can in the limited 3Kc Bandwidth, using the monitor.

Best thing to do is to use a Second Receiver to finish setting the audio, after you get it close in the monitor.

That is where we would leave the TX EQ...OFF.
The RX EQ will not have anything to do with the Transmission.
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:29 am, edited 1 time in total.
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Well?

Post by KD5TTZ »

So what I am hearing from the Tx Monitor, may not be what it actually sounds like¿ ?(did that sound right)¿.
I have another sw radio that I can listen on. I will try to get that set up and listen.
Thanks for the input, I will let you know tomorrow, My 15 yr. old has a Baseball game tonigh.
God Bless.
KD5TTZ
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Bandwidth

Post by Voodoo Guru »

What you hear in the Monitor will be close.

The problem with using another Receiver is that the Received bandwidth has to be as wide as what your transmitting, about 3Kc in this case.
We're not sure what kind of SW radio you have.
You might be able to use the SW Radio if its Receive Bandwidth is wide enough....but its probably not.
The monitor will more than likely be a truer representation of your transmitted audio.
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:30 am, edited 1 time in total.
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Post by KD5TTZ »

Well, when I take the written exam next week, I will be able to get on HF.
After that, maybe we can do this on the radio.
What do you think?
Kyp
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Can't Wait

Post by Voodoo Guru »

Can't wait to hear ya Kyp!
Good Luck,
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Post by KD5TTZ »

I can't wait my self.
Now, I am not stuppid (¿), but, What is the deal with the ALC. I thought this was gust to activate the external amp.? So if so, why do other post on other forums say to adjust the ALC for peak audio. Or, only move when an over average audio signal is sent from the microphone. What is the deal with this¿
I am keying the Amp. with a foot switch, so do I still need to be worried about adjusting the ALC. What is the correct way to adjust the ALC¿
Thanks,
PuJo
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KD5TTZ
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Way off topic

Post by KD5TTZ »

I think I am having trouble loading an Avatar. It doesnt sem to work. I loaded it correctly, but still no go. Any ideas?
If it doesnt fit, don't forse it. Get a bigger hammer !

http://kd5ttz.tripod.com/index.html

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ALC

Post by Voodoo Guru »

The ALC (Automatic Limiting Control) is used to 'limit' the gain of the TX to keep from distorting and overdriving.

It is used for the External Amplifiers, mostly when using older exciters.
The Newer rigs, like your TS-2000 along with the newer amps don't usually need it. Although in certain circumstances it is very helpful.

What you're reading to adjust the Audio Level to the ALC readings, this is also correct.
There should be some kind of ALC display on the TS-2000 to indicate the amount of ALC action being introduced during Transmission.
How this works is like so:
You input your Audio into the Rig,
It is amplified and modulated into RF,
It is then filtered, and amplified some more to be sent to the Main RF Power Amplifiers in the rig.
If the Audio Level is set to high on the input into the rig,
Then distortion and IMD will start to occur due to overdriving the IF stages, and the Main Power Amps.
This is prevented with the ALC circuit, which monitors the output level of the IF stage and reduces the gain accordingly to keep it within its design specs.
So the more Audio Level is input into the rig (Mic Gain turned up) the ALC circuit increases to reduce the gain.
This can be seen on the ALC display of the Rig as more ALC indication.

The correct way to set the ALC varies for different rigs.
We're not familiar with the TS-2000, but generally the Audio Level (Mic Gain) is set to gt a specific indication on the ALC Meter.

Lets say for a TS-870s, the Audio is usually set to where the ALC level is just before its Max setting on voice peaks.

On the modified TS-850s/DSP-100, the Audio is set to where you barely see the ALC indication on the meter on voice peaks.

As for the TS-2000, We don't know what the best setting is.
We're sure someone has this information??

Hope this helps Kyp,
Take Care,
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:31 am, edited 1 time in total.
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Avatar

Post by Voodoo Guru »

Hmmm....
On the Avatar,
OK, try it now, We had some settings not right on the Server.
It should work now.
Last edited by Voodoo Guru on Sat Mar 24, 2007 9:32 am, edited 1 time in total.
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KD5TTZ
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Post by KD5TTZ »

ok, ALC settings are the same for the TS2K.
So, what I need to do is actually listen to the audio and see if it is overdriven, if not then disregard the ALC. But I guess we will see next week when I get on HF and a few of you can listen to the VOODOO, and tell me how it sounds with different settings.

Can I tell if the input audio is distorted while listening threw the Tx Mon.?
I think I should, but not sure.

I will try the Avatar and see what happens.
If it doesnt fit, don't forse it. Get a bigger hammer !

http://kd5ttz.tripod.com/index.html

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KD5TTZ
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Test Time

Post by KD5TTZ »

Well, I will be going take my Gen. Written exam Tuesday.
So, maybe, I will get to chat with you huys on tuesday evening.
God Bless,
KD5TTZ
If it doesnt fit, don't forse it. Get a bigger hammer !

http://kd5ttz.tripod.com/index.html

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KD5TTZ
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Post by KD5TTZ »

OK, Today is Tuesday. Passed the test.
For now the call is KD5TTZ/AG.

God Bless.
Kyp
If it doesnt fit, don't forse it. Get a bigger hammer !

http://kd5ttz.tripod.com/index.html

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Congrats!!!!

Post by Voodoo Guru »

Congratulations!!!!
Man that is soooo terriffic!
Can't wait to yak at ya,
We've been so busy around here latly had no time to play radio in the last few weeks.
Hopefully things will quite down in the near future.
Man, that is great Kyp!
I'm exicited fer ya!!
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Post by sm6wet »

Congratulations!

Bet you will have alot of fun discovering the fun with DX on the HF bands.

73 de Magnus

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w5cul
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Post by w5cul »

Congrats Kyp, can't wait to chat with ya on the late night Voodoo Network!!

Mike
W5CUL

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