ATTENTION: The price shown includes Greek VAT 24% and is applicable to all individuals in EU countries only. If you are from any other country including USA, Canada, Australia etc. please use the "make offer" button and divide the price by 1,24.We will first accept this offer to let you proceed with the check-out and payment. If you are a business registered in EU with a valid VAT number again, you can use the same button so to pay without VAT. We will send you a zero VAT tax invoice.

Based on the Analog Devices ADL5513 chip, this module is a complete RF Power meter head for 50 ohm systems 

working from below 1 MHZ to more than 4000 MHZ with 80 dB dynamic range (+/- 3 dB)  or 74 dB (+/- 1 dB).

The RF input SMA is terminated to a 52.3 - 0.1% Ohms resistor (R1) to match the ADL5513 input resistance to 50 Ohms.

It draws under 25 mA at 12 VDC and has an on board 5V voltage regulator.

For low noise operation, a special ultra low-noise 5 V voltage regulator is used. The LP2985AIM5-5.0 is made by Texas Instruments and is optimized for RF circuits. This one powers the ADL5513 chip. Its input can be connected to an external power supply of +5.25 min to 16V max via edge connector pin 1.

The ADL5513 output voltage is routed to the output connector pin 2 and pin 3 for 21mV/dB measurements.

All of the scaling resistors as described in it's datasheet are in purpose large (of 1206 SMD size), in order to facilitate hand soldering/de-soldering if any change is required..

The PCB dimensions are 37 x 19 mm and a special gold-plated band is provided on the edges to help soldering any shielding material (copper clad board, tin etc).

You can download its schematic and building instructions here

https://www.sv1afn.com/adl5513.html

 I have also listed a similar PCB module with the Analog Devices AD8313 here 

http://www.ebay.com/itm/151265061354?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649