---
title: hamwaves.com
subtitle: Hello and welcome to my hobby web\ site!
author: 73 de Serge Stroobandt, ON4AA
date: Copyright 2001--2024, $(BYNCSA)
description: 'Indispensable amateur radio information, including: multiband antenna designs, on-line HF propagation prediction, calculators, live ham radio and GNU/Linux.'
application-name: lookup
...


- [![ham](../images/ham.gif)_What is_ Amateur (Ham) Radio?](https://en.wikipedia.org/wiki/Ham_radio)
- [![RF hazard](../images/hazard.rf.png)Contest _Calendars_](../../contests/en/index.html)
- [![DX](../images/dx.png)DX Resources](../../dx/en/index.html)
- [![ham operator](../images/ham.operator.gif)Operating, Logging\ &\ CW](../../operating/en/index.html)
- [![IARU](../images/iaru.png)Band Plans](../../bandplans/en/index.html)
- [![ITU+CQ](../images/itu+cq.png)_Amateur Radio_ Maps](../../maps/en/index.html)
- [![QSL](../images/qsl.png)QSL-ing](../../qsl/en/index.html)
- [![Yaesu FT-990](../images/yaesu.ft-990.png)_Shack_ Projects](../../shack/en/index.html)
- [![papers](../images/papers.jpg)Magazines](../../magazines/en/index.html)
- [![podcast](../images/podcast.png)Podcasts](../../podcasts/en/index.html)
- [![radio](../images/radio.png)Internet Radio _Streams_](../../streams/en/index.html)
- d
- [![propagation](../../images/black.png){#propagation}_Real-Time_ HF Propagation _Space Weather_](../../propagation/index.html)
- [![websdr](../images/websdr.jpg)_Listen to_ Live Ham Radio](http://websdr.org/)
- [![antennas](../images/antennas.gif)_Antenna_ Designs](../../antennas/en/index.html)
- [![doorknob capacitor](../images/doorknob.png)_Antenna_ Components](../../components/en/index.html)
- [![calculator](../images/calculator.png)_RF Engineering_ Calculators](../../calculators/en/index.html)
- [![Petzl MGO harness](../images/petzl.mgo.png)Fall\ Arrest, Rope Access\ & Knots](../../rope_access/en/index.html)
- [![QRP](../images/qrp.png)_Wilderness_ QRP](../../qrp/en/index.html)
- [![APRS](../images/aprs.png)Packet Reporting Systems](../../prs/en/index.html)
- [![MicroPython](../images/micropython.svg)Internet of Things _with MicroPython_](../../iot/en/index.html)
- [![ARDF](../images/ardf.png)_Amateur_ Radio Direction Finding](../../ardf/index.html)
- [![RTTY](../images/rtty.png)Digital HF Modes](../../hf.digital/en/index.html)
- [![QRM](../images/qrm.png)_Sources of_ RF Interference](../../qrm/en/index.html)
- <img src="../images/qrz.png" alt="QRZ" />
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<input type="text" name="callsign" size="7" oninput="copyCall(this)" onkeypress="keyEval(this, event)"/><input type="button" value="Lookup Call" onclick="lookupCall(this)"/><input type="button" value="Clear" onclick="clearCall()"/>
</form>
- <img src="../images/hamqth.png" alt="HamQTH" />
<form name="hamqth" action="index.html" onsubmit="return false">
<input type="text" name="callsign" size="7" oninput="copyCall(this)" onkeypress="keyEval(this, event)"/><input type="button" value="Lookup Call" onclick="lookupCall(this)"/><input type="button" value="Clear" onclick="clearCall()"/>
</form>
- [![ham Tux](../images/tux.ham.png)_Amateur Radio with_ GNU/Linux](../../linux.ham/en/index.html)
- [![connectivity](../images/connectivity.jpg)Information Technology](../../it/en/index.html)
- [![words](../images/words.jpg)_Natural_ Languages](../../languages/en/index.html)
- [![Europe precipitation](../../images/blue.png){#precipitation_eu}Europe's Weather](../../wx/en/index.html)
- [![RiSX](../images/risx.jpg)_Ham\ Radio_ for the Youth](../../youth/en/index.html)
- [![shuttle](../images/shuttle.jpg)_Ham Radio_ In\ Space](../../space/en/index.html)
- [![stealth](../images/stealth.jpg)Surface Waves _on Stealth Aircraft_](../../stealth/en/index.html)
- [![roar](../images/roar.jpg)Clubs, Associations\ & Repeaters](../../clubs/en/index.html)
- [![phone plugs](../images/phone.plugs.jpg)_Shameless_ Plugs](../../plugs/en/index.html)
- d


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