LED RF Signal Meter

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[LED-rf-6]

Overview of the LED RF signal meter.  It's built into an old California Amplifier MMDS downconverter case.  Proper circuit shielding is required for this project.

[LED-rf-2]

Closeup of the National LM3914 dot/bar display driver.

[LED-rf-3]

Closeup of the Analog Devices AD8313 RF logarithmic detector and power supply regulation/filtering.

[LED-rf-4]

Solder side of the LEDs.

[LED-rf-5]

Overview showing the insides and battery.

[LED-rf-8]

Power on.  The first green LED is a battery indictator, the next two are lit because of background RF noise.

[LED-rf-9]

Slightly closer to the RF source...

[LED-rf-11]

BINGO!!!  75 Watts!!  Wall-to-wall and tree top tall.

Never talk to Radio Shack employees.