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DL3TU - TopbandWe live on the outskirts of the city in a house with
virtually no
garden of our own. Only the roof offers a little room for small
antennas. My antenna consists of a 41 meter long wire that runs to
a nearby tree at a height of about 15 metres. As a counterweight I use
a 16 meter high steel beam on
the outer facade. Most likely this one is radiating as well. The QRM- level at my place is not catastrophic but still fairly high. S5 at an IF- bandwidth of 400 Hz is standard. Hence I started playing with Rx antennas. They make listening more pleasant. With my current setup I can hear much further than my transmitter signal carries. It occurs fairly often that I can hear the DX, but am not heard by them. Increasing transmit power would be possible but I don't want to be an alligator. My first Rx- antenna is a "Mini Whip". The second RX- antenna is a shielded loop. Both are located on the roof top as there is no room elsewhere. Due to its size, I prefer setting up the loop only temporarily during contests. DXCC on Top Band is very close and up to now I worked 25 US states... |