My antennae Here are the antennas I use at the moment. See also under the remotestation tab. At the bottom of the page there are also some tips and links for those of you who like to build your own antennas. The beam is a Hygain Explorer and it has the bands 30m, 20m, 15m and 10m. Above it a warcbands dipole and at the top a vertical from Diamond for 2m and 70cm. It's all mounted on a sled so I can lower the antennas to the top for easier servicing. Here is the rotor that I turn the antennas with. It sits on the floor in the attic and I built it from a Permobil engine, two gearboxes and chain drive. The rotor is operated with a control box from CDE. I use this antenna for the 40m and 80m bands. The upper part for 80m is slightly shortened and thus adapted for the attachment points I have access to but performance and bandwidth is basically equivalent to a full length dipole. The coils inductance is 30 Mikrohenry, read more about the coils further down the page. Antenna analysis 80m Antenna analysis 40m Here is a picture of my 80m vertical that I have mounted on my boathouse. The antenna has a coil in the middle and uses the tin roof of the boat house as a ground plane. If you don't have access to the metal roof or the like, it works just as well with counterweight ropes. Antennas for smaller gardens Shortened antenna for the 80m band that works well. This antenna is much shorter and thus narrower, but works to tune with the radio's internal tuner over the entire band with good results. The coils are of the same construction as on my wire antenna for 80m and 40m further up the side. They are wound on 50 mm electrician's pipe. By wrapping with RK el. FK1.5mm2 automatically gets a "pitch" of 1:2. 45 turns gives the desired 30uH. A 140 mm pipe length is used for the winding itself, but a 160 mm pipe is used to accommodate the reliefs. The antenna is previously posted by SM4FPD, thanks Roy for a good antenna for small spaces. Really good Windom antenna for all bands from 40m to 10m including the Warc bands. Works very well and goes on all bands including the warc bands without too high SWR. Can be tuned with good results on 6m but works poorly on 80m. Avoid running the coax parallel to the antenna wires and preferably use a - RF-choke or similar to prevent RF to the shack, which can be a problem with Windom antennas. I myself have some tube ferrites on the coax just below the balun and have never noticed any RF in the shack. I bought this antenna but it is easy to build yourself. The antenna is designed and sold by Nigel Booth - M0CVO This is another good multiband antenna with small dimensions that also works well even on 80m. Click on the PDF button for a more detailed presentation of the antenna Step fed Min stegmatade dipol på min remoteplats. Troligen Sveriges dyraste stege då min dotter som monterade ihop den fick 4 kronor för varje stegpinne :-) Här kan man se de låga förlusterna vid en stegmatad antenn. Kan man bara stämma av den så är furlusterna försvinnade små. Längkarta på dipol och steglängder En linkkopplad Anneke-tuner avsedd för stegmatning. Vill man slippa tuner går det bra att koppla in olika steglängder för att hamna rätt. Baluns and chokes Here, 2 baluns are suitable for several of the antennas on the side. They are wound on the toroid core Amidon FT 240-43 which is easy to find for purchase._cc781905-5cde-3194-bb3b-136bad5cf5 50d_Maxw power ca. If you need higher power endurance, you stack two cores, maximum power 1000w. If you want to read more about baluns and how you make them, visit Wolfgang Wippermann's (SK) website. He was a guru on baluns and on the website he shares the knowledge of building well-functioning baluns. https://www.wolfgang-wippermann.de/ Här på VK6YSF hemsida hittar du också bra beskrivningar hur du bygger baluner. https://vk6ysf.com/balun_choke_balun_low_vhf.htm You can build an RF choke by wrapping the coax around a plastic tube, a so-called "uggly balun". The coax wound around a toroid core provides a wider bandwidth RF-Choke. You can see the number of turns and frame/toroid here. Antennmyter inom amatörradion Bertil Lindqvist, SM6ENG, har funderat mycket över myterna inom amatörradiovärlden. Här har han sammanställt och kommenterat ett antal av de myter och missförstånd han tycker är vanligast förekommande. Även Bengt Lundgren, SM6APQ (Silent key) är med som författare. Sidorna är hämtade från ESR med deras godkännande. Besök gärna deras hemsida som innehåller mycket matnyttigt för den teknikintresserade amatören. - Måste en antenn vara i resonans för att fungera? - Tar en antennanpassningsenhet bort ståendevåg på koaxialkabeln? - Missförstånd om kabelns karateristiska impedans - Ger en koaxialkabel med hög förlust upphov till ståendevåg? - Fungerar en öppen feeder som en antenn? - En lågt sittande dipol har ingen riktverkan - Är G5RV en multibandantenn? - Förlorar man lika mycket i sändning som i mottagning om verkningsgraden i en antenn är dålig? - Ger högt ståendevågförhållande RF-Problem (EMI) för närliggande utrustningar? - Om vi har en sändare som ger 100W uteffekt och ståendevågförhållandet (SVF) är 3:1 kommer det då ut 75W i antennen? - Det finns motsägande budskap om baluner - Hur påverkas ståendevågförhållandet av PL-259-kontakten? - Jordning - Myter om balanserade/obalanserade koaxialkablar och antenner - "Tysta antenner" - Balanserad matning och feederstrålning - Horisontella dipoler över reel jord - Koaxdipoler Links Here are some useful links for those of you building antennas Antenna simulation program K7MEM M0UKD 1728.0rg Lots of wire antennas Antenna simulation program DK7ZB:s hemsida med massor av antennritningar IZ0UPS Workshop (Italienska)

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Click on the PDF button to take part in a presentation on digital modes of transport Software: Digipan - PSK, Pactor and FSK MTTY - RTTY WSJT-X - JT65, FT8, WSPR and more FLDIGI - Thor, Olivia and more Dimension 4 - Clock correction program for PC Time.is - Check your PC clock JS8Call Digital Clusters: WSPR.net PSK reporter Hamspots See also under the "Cluster" tab Modem: Signal inc Digital signals: Signal identification

QRolle Here are some pictures and information about the QRolle Classic that I built. QRolle Classic is a QRP station for SSB on the bands 20m and 80m. It can also be easily further developed for CW traffic. OROlle is designed by SM6DJH Olof Holmstrand. All construction information is available on the internet, so it is still possible to build your own QRolle. The page where all the information is available is http://qrolle.thulesius.se/ Visit the page and be inspired to build your own QRolle. Tillbyggnad av QROlle för att köra CW Samanfattad byggbeskrivning

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Under construction Dalslandsringen 3,765 Saturday - Sunday 09.30 The Huddinge Ring 3,762 Fridays 8 p.m The West Coast Ring 3,717 09.00 Dalaringen 3,658 08.30 The Oresund Ring 3,636 11 a.m. and 3 p.m The nomination 3,623 07.30 The Ring of Öland 3,623 Monday - Friday 09.00 Höglandringen 3,613.5 08.30 Kulturringen The Radio Museum 3,620 09.00 If you know of any changes or a ring that can be added here, let us know under the "contact" tab

SM6POP Amatörradio Ham radio antenner Anders Karlsson Welcome to look into my toolbox! Here is some tools between antenna and earth that I have used, maybe you also find something useful in the field of amateur radio on the page If you click on the The radio workshop you can see a little about my ham radio repairs. I accept ham radio equipment for repair and service as time allows and access to parts and service manuals. If there is something in the toolbox you want to comment on or are missing, please contact me under Contact. The page is best viewed in Windows. Last Updated - 69MHz/27MHz- 2022-10-20 The page is auto-translated to English and all errors have not been corrected yet

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