General Radio Admittance meter model 1602
![The instrument has dimensions of 175 x 175 x 260 mm. It sits in a wooden box. Inside the box cna be the found the UHF admittance meter along with 2 multiplier plates-one single and one double; 1 coaxial panel connector and 2 terminators. Without cover box. Front view.](/sites/physics/files/styles/1_1_placeholder_/public/images/2023/IMG_20230706_155638820~2.jpg?h=d9386138&itok=LxuzV3kE)
Figure 1: General Radio Admittance meter model 1602. Without box. Front view.
![The instrument has dimensions of 175 x 175 x 260 mm. It sits in a wooden box. Inside the box cna be the found the UHF admittance meter along with 2 multiplier plates-one single and one double; 1 coaxial panel connector and 2 terminators.](/sites/physics/files/styles/1_1_placeholder_/public/images/2023/Admittance%20meter.jpg?h=54d3522f&itok=vSw7g0NX)
Figure 2: General Radio Admittance meter model 1602. With box. Front view.
![The instrument has dimensions of 175 x 175 x 260 mm. It sits in a wooden box. Inside the box cna be the found the UHF admittance meter along with 2 multiplier plates-one single and one double; 1 coaxial panel connector and 2 terminators. Without cover. Front corner view.](/sites/physics/files/styles/1_1_placeholder_/public/images/2023/IMG_20230706_155652169~2.jpg?h=e4010109&itok=qn-bAy88)
Figure 3: General Radio Admittance meter model 1602. Without box. Front corner view.
The Type 1602-B U·H-F Admittance Meter is a simple, flexible instrument for the measurement of admittance and impedance over a wide frequency range. As a null instrument the U·H·F Admittance Meter can be used to measure the conductance and susceptance of an unknown circuit directly. It can also be used as a comparator to indicate equality of one~ admittance to another, or degree of departure of one from the other. As a direct indicating device, in addition, it can be used to determine the magnitude of the reflection coefficient on a 50-ohm coaxial line or the magnitude of an unknown impedance from ratios of output voltages read on a meter.