8 Feb Dear all. PLEASE I DO NOT WANT opinions on the performance of this antenna. All I want are some construction notes for this antenna, or any. New HF Antenna = Roomcap Before, all antennas were built accordingly the principle: Current in wire. This antenna is working with this principle: Current over . 14 Aug Ruehrberg-Loerrrach This is the Roomcap antenna, installed on the car. The size of the grid is 1m x 1m. This antenna works on all bands, from.

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July Antenna test 19th. Well, my next question is, wntenna the antenna patented? He has not been with the magazine for nearly 10 years. Thanks for trying to send me the email. Visit antenna website Mhz portable antenna Design for a portable J pole Visit antenna website Easy Homemade 2.

The signal from Beat was received by all participants with very large signal strength variations, rapid QSB in the order of rkomcap S points, whereby the average signal strength varied slowly between S3 and S6.

Another thought I am having is something like a quadfilar helix antenna. July 8, at 6: The location is to be considered as bad location for HF, as Duggingen is down in a narrow valley.


To help you, I just give you here the link to the measured values: July 05 Today I could perform a Comparison between the new HB9ABX antenna and the Microvert antenna on 40 m. Antenha Stone is the only editor now. Please, watch at this address: Switch to Threaded Mode.

HB9ABX RoomCap antenna construction | QRZ Forums

The inventor presents his ideas while someone analyzes not simply evaluates the antenna. Dear Allison, thanks for your comments. Imagine, for over years we were stuck on stupid and using them unsightly, large antennas.

My dear Dan, you misunderstood what I wrote before: This site uses Akismet to sntenna spam. How can this be?

It is well known, that all simulations only represent the correct result, if the simulated object is within the validity range of the program – nothing new.

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July Antenna report 15th. The comparing antena were always in the same QSO with frequent changeover between the comparing station and the mobile station. Someone else did forward an email from you that you send out showing that what you are doing is selling the information. I am considering building something along these lines for use on the beach. TS, W The location was on a flat roof in Allschwil Basel11 m above ground on top of an industrial building.

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What they have done is, to define something similar, and concluded that this is the behaving of the Roomcap The following stations from Basel and vicinity were qrv: Once we know what is radiated we can compare. Today the antenna was mounted directly at grond level for the following test. I do recall the following: The upper section is a coil antdnna serves two purposes.

I have followed the Room Cap over the last couple of years and have read the signal report data. I have built a hair spray can antenna for 40 meters according to these plans. This is nothing personal as neither of us knows each other. Home Search Today’s Posts. Maybe but probably not!!! The Chu Limit was cited in one or two articles. The “technical specifications” in the construction guide is the same data as found at the beginning of my homepage: The antenna is located on a family house at the border of the city on a hill position antenna good view over the city of Basel.

December 04, BYU, perhaps the editor was Richard Morrow.