For engineers and students who design audio, video and RF circuits

For engineers and students who design audio, video and RF circuits

The calculable attenuators are as follows:

1. Type T

2. Type π

3. Type Bridged T

4. Type H

5. Type O

6. Type Bridged H

7. Type L (Impedance converter)

8. Type U (Impedance converter)

Calculate resistance values in entering source impedance, load impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Simple calculation priority

6. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Precision calculation priority

6. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering source impedance, load impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Simple calculation priority

6. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Precision calculation priority

6. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering characteristic impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter characteristic impedance (Z₀) in the frame and select unit button (Ω or kΩ)

3. Enter attenuation (ATT) in the frame

4. Select Simple calculation priority

5. Display calculation result by the simple structure

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter characteristic impedance (Z₀) in the frame and select unit button (Ω or kΩ)

3. Enter attenuation (ATT) in the frame

4. Select Precision calculation priority

5. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering source impedance, load impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Simple calculation priority

6. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Precision calculation priority

6. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering source impedance, load impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Simple calculation priority

6. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Enter attenuation (ATT) in the frame

5. Select Precision calculation priority

6. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering characteristic impedance and attenuation
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter characteristic impedance (Z₀) in the frame and select unit button (Ω or kΩ)

3. Enter attenuation (ATT) in the frame

4. Select Simple calculation priority

5. Display calculation result by the simple structure

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter characteristic impedance (Z₀) in the frame and select unit button (Ω or kΩ)

3. Enter attenuation (ATT) in the frame

4. Select Precision calculation priority

5. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and attenuation, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering source impedance and load impedance
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Select Simple calculation priority

5. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and conversion loss, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Select Precision calculation priority

5. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and conversion loss, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Calculate resistance values in entering source impedance and load impedance
Display ideal values or resistance values corresponded to a selected E-series number (E12 ~ E192)
Display power of each resistor and several parameters by pushing "Details" button

Simple calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Select Simple calculation priority

5. Display calculation result by the simple structure

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and conversion loss, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each resistor's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

Precision calculation

Procedure of resistance calculation

1. Select ideal values or E-series number (E12 ~ E192)

2. Enter source impedance (Z_S) in the frame and select unit button (Ω or kΩ)

3. Enter load impedance (Z_L) in the frame and select unit button (Ω or kΩ)

4. Select Precision calculation priority

5. Display calculation result by consisting of up to 4 resistors per an element

Display resistance values of each element in the pop-up window.

In the previous page, push "Details" button, and then move to this page.

In this page, display calculated Z_in, Z_out and conversion loss, and calculate power.

Procedure of power calculation

1. Enter signal level in the frame and select unit (dBm or V_rms or mV_rms or µV_rms)

2. Enter bias voltage in the frame

3. Display calculated output level

4. Push each element's symbol when you confirm power of each resistor

Display resistance value and power of each resistor in the pop-up window.

In the previous page, push "More.." button, and then move to this page.

In this page, display calculated several parameters such as reflection coefficient (ρ), VSWR, return loss and mismatch loss.

1. Push each element's symbol when you confirm resistance values of each element

Display resistance values of each element in the pop-up window.

Top

Because standard resistors are used, the following restriction is set up.

Range of resistance value: 1Ω ~ 10MΩ (except ideal values)

"< 1Ω" is displayed when resistance value is less than 1Ω, "> 10MΩ" is displayed when resistance value is more than 10MΩ.

Selectable E-series number

E12, E24, E48, E96, E192 and ideal values

Input range

[Type T, π, H, O]

Z_S: 0.001Ω ~ 99999Ω or 0.001kΩ ~ 99999kΩ

Z_L: 0.001Ω ~ 99999Ω or 0.001kΩ ~ 99999kΩ

ATT: 0.001dB ~ 99.999dB

[Type Bridged T, Bridged H]

Z₀: 0.001Ω ~ 99999Ω or 0.001kΩ ~ 99999kΩ

ATT: 0.001dB ~ 99.999dB

[Type L, U]

Z_S: 0.001Ω ~ 99999Ω or 0.001kΩ ~ 99999kΩ

Z_L: 0.001Ω ~ 99999Ω or 0.001kΩ ~ 99998kΩ

(Condition: Z_S > Z_L)

Detail page

Signal level:

0dBm ~ +/-99.999dBm or 0V_rms ~ 99999Vrms or 0mV_rms ~ 99999mV_rms or 0µV_rms ~ 99999µV_rms

Bias voltage: 0V ~ 99999V

Output range

Resistance:

1Ω ~ 10MΩ (E12 ~ E192), 0Ω ~ 99999YΩ (ideal values)

Conversion loss: 0dB ~ 99999dB (Type L, U)

Details

Z_in, Z_out: 0Ω ~ 99999YΩ

Output level:

0dBm ~ +/-99.999dBm or 0V_rms ~ 99999Vrms or 0mV_rms ~ 99999mV_rms or 0µV_rms ~ 99999µV_rms

Power: 0W ~ 99999YW

Reflection coefficient (ρ): 0 ~ 1

VSWR: 1 ~ 99999

Return loss: 0dB ~ 99999dB

Mismatch loss: 0dB ~ 99999dB