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Spectrum Analyzer: VCO and 1st Mixer

dmsmccann·Spectrum-Analyzer·vco-1stmixer/vco-1stmixer/vco-1stmixer.kicad_pcb

Spectrum Analyzer: VCO and 1st Mixer PCB layout, top view — open source board by dmsmccann
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About the Spectrum Analyzer: VCO and 1st Mixer PCB

Spectrum Analyzer: VCO and 1st Mixer is an open source PCB design by dmsmccann, published on GitHub. It is a 2-layer board measuring 91.7 × 48.8 mm, with 39 components from 23 distinct parts.

Other key parts include the POS-200, MAV-11 and TUF-1H+. By type, the board carries 16 resistors, 11 capacitors, 5 connectors, 4 ICs, 2 inductors and 1 jumper.

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: VCO and 1st Mixer

POS-200MAV-11TUF-1H+

Spectrum Analyzer: VCO and 1st Mixer bill of materials (BOM)

39 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
POS-200
U101
2
MAV-11
U102, U103
1
TUF-1H+
U104
1
VCO Control In
J101
1
1st IF Out
J102
1
VCO Sample
J103
1
RF In
J104
1
+15
J105
1
Jumper
JP101
2
.3u
L101, L102
2
.01u
C101, C107
1
.1u
C102
1
100u
C103
6
.001u
C104, C105, C106, C108, C109, C110
1
.001
C111
5
150
R101, R102, R104, R106, R110
2
36
R103, R108
1
1.5k
R105
4
220
R107, R109, R114, R116
1
33
R111
Show 3 more
QtyPartRefs
1
22
R112
1
47
R113
1
470
R115

Spectrum Analyzer: VCO and 1st Mixer 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: VCO and 1st Mixer: common questions

How big is the Spectrum Analyzer: VCO and 1st Mixer PCB?

The Spectrum Analyzer: VCO and 1st Mixer measures 91.7 × 48.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spectrum Analyzer: VCO and 1st Mixer?

39 components, from 23 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: VCO and 1st Mixer 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: VCO and 1st Mixer 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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