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Spectrum Analyzer: Second Mixer - Second Local Oscillator

dmsmccann·Spectrum-Analyzer·2ndmixer-2ndlo/2ndmixer-2ndlo/2ndmixer-2ndlo.kicad_pcb

Spectrum Analyzer: Second Mixer - Second Local Oscillator PCB layout, top view — open source board by dmsmccann
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About the Spectrum Analyzer: Second Mixer - Second Local Oscillator PCB

Spectrum Analyzer: Second Mixer - Second Local Oscillator is an open source PCB design by dmsmccann, published on GitHub. It is a 2-layer board measuring 72.4 × 49.5 mm, with 45 components from 33 distinct parts.

Other key parts include the MAV-11 and ADE-1HW+. By type, the board carries 17 resistors, 14 capacitors, 4 inductors, 3 connectors, 2 ICs and 2 transistors.

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: Second Mixer - Second Local Oscillator

MAV-11ADE-1HW+

Spectrum Analyzer: Second Mixer - Second Local Oscillator bill of materials (BOM)

45 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MAV-11
U201
1
ADE-1HW+
U202
2
2N5179
Q201, Q202
1
100MHz
Y201
1
Conn_01x02
J201
1
110 MHz In
J203
1
2nd IF Out
J204
1
5025
JP201
1
Bifilar_Transformer
T201
1
40n
L201
1
420n
L202
2
1u
L203, L204
2
470p
C201, C202
2
33p
C203, C204
1
15p
C205
1
82p
C206
1
120p
C208
3
.01u
C209, C210, C211
3
.1u
C212, C213, C214
1
BFC280831659
12p-60p
C299
Show 13 more
QtyPartRefs
2
2k
R201, R213
1
39
R202
1
3.3k
R203
1
510
R204
1
100
R205
2
150
R206, R208
1
36
R207
1
47
R209
2
220
R210, R211
1
51
R212
1
390
R214
2
27
R215, R217
1
5.1
R216

Spectrum Analyzer: Second Mixer - Second Local Oscillator 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: Second Mixer - Second Local Oscillator: common questions

How big is the Spectrum Analyzer: Second Mixer - Second Local Oscillator PCB?

The Spectrum Analyzer: Second Mixer - Second Local Oscillator measures 72.4 × 49.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spectrum Analyzer: Second Mixer - Second Local Oscillator?

45 components, from 33 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: Second Mixer - Second Local Oscillator 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: Second Mixer - Second Local Oscillator 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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