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MAR-6 VHF-UHF wide band amplifier circuit

A very simple wideband amplifier circuit can be designed using the MAR-6 IC manufactured by Mini Circuits . This MAR-6 VHF-UHF wide band amplifier circuit will providing stable amplification of at least 9dB up to 2GHz, combined with a low noise figure (about 3dB).
The MAR-6 comes in a very small cylindrical package, about 2mm in diameter and 2mm high. It’s fitted with four radial leads at 90° (two of which are earthed), and is basically a two-transistor amplifier with unturned and low value loads in order to achieve the required wide bandwidth and be capable of driving a co-axial cable.

Because the MAR-6 is designed to receive its power via the signal output pin, it’s very suitable for use as a masthead amplifier. It requires about 3.5V DC, at a working current of around 16mA.
As you can see in the circuit diagram this masthead amplifier electronic project , require few external electronic parts , so if you will use SMD components you’ll have a very compact design . With power applied, the LED should glow reassuringly and you should be able to measure about 6.8 - 7V DC at the end of R1 nearer IC2 and C5 . If the LED doesn’t glow and you get no voltage reading, chances are that you’ve wired the DC input with reverse polarity .If the LED doesn’t glow but there’s almost the full plug-pack voltage present at R1, you’ve almost certainly wired the LED in backwards.

MAR-6 VHF-UHF wide band amplifier circuit project


nice circuit and very usefull..sure...thanks YC0LOG,jakarta indonesia

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