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Spectrum Analyzer: IF and Log Amp

dmsmccann·Spectrum-Analyzer·if-and-log-amp/if-and-log-amp/6-22-if-and-log-amp.kicad_pcb

Spectrum Analyzer: IF and Log Amp PCB layout, top view — open source board by dmsmccann
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About the Spectrum Analyzer: IF and Log Amp PCB

Spectrum Analyzer: IF and Log Amp is an open source PCB design by dmsmccann, published on GitHub. It is a 2-layer board measuring 91.7 × 48.8 mm, with 55 components from 32 distinct parts.

Other key parts include the AD603AQ, L78L05_TO92, LM317L_TO92, AD8307AN and CA3140. By type, the board carries 21 resistors, 19 capacitors, 7 connectors, 5 ICs, 1 diode and 1 inductor.

It belongs with the test & measurement and rf & radio designs in this gallery.

From the project

Based on design by W7ZOI in 1998 QST

This repository contains a complete KiCad implementation of the famous W7ZOI Spectrum Analyzer design, originally published in QST magazine. The W7ZOI spectrum analyzer is a well-regarded amateur radio test instrument design that provides a cost-effective solution for RF spectrum analysis.

The W7ZOI Spectrum Analyzer is a superheterodyne spectrum analyzer designed for amateur radio applications. It provides frequency analysis capabilities across the HF and VHF bands, making it an invaluable tool for antenna analysis, filter characterization, and general RF measurements.

Main components on the Spectrum Analyzer: IF and Log Amp

AD603AQL78L05_TO92LM317L_TO92AD8307ANCA3140

Spectrum Analyzer: IF and Log Amp bill of materials (BOM)

55 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AD603AQ
U301
1
L78L05_TO92
U302
1
LM317L_TO92
U303
1
AD8307AN
U304
1
CA3140
U305
1
Conn_Coaxial
J301
5
Conn_01x02_Male
J302, J303, J304, J305, J306
1
Board to Box Ground
J307
1
100
RV302
1
1N4152
D301
1
1.05u
L301
1
100u
C304
1
.01u
C305
9
.1u
C306, C307, C308, C309, C312, C318, C319, C320 +1
1
.22u
C310
1
18u
C311
1
22u
C313
2
5.6p
C314, C317
1
5-65p
C315
1
220p
C316
Show 12 more
QtyPartRefs
1
.001u
C321
4
2.2k
R301, R302, R308, R320
1
100
R303
2
680
R304, R318
1
510
R305
3
1k
R306, R313, R321
2
51
R307, R319
1
4.3k
R309
1
5.6k
R310
4
10
R311, R312, R316, R317
1
220
R314
1
1.5k
R315

Spectrum Analyzer: IF and Log Amp design files

The KiCad project lives in the dmsmccann/Spectrum-Analyzer repository on GitHub; these links point at the commit this page was built from.

Spectrum Analyzer: IF and Log Amp: common questions

How big is the Spectrum Analyzer: IF and Log Amp PCB?

The Spectrum Analyzer: IF and Log Amp measures 91.7 × 48.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spectrum Analyzer: IF and Log Amp?

55 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Spectrum Analyzer: IF and Log Amp design files?

From the dmsmccann/Spectrum-Analyzer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Spectrum Analyzer: IF and Log Amp design in my own project?

The repository has no license, so all rights stay with dmsmccann. Use it as a reference, and ask the author before reusing the design.

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