Receiving HF signals at my location is a compromise situation due to the antennas I use and the high noise environment in the city. Although my transceiver has good selectivity and excellent filters, I suffer from high noise conditions that at times make receiving a chore. This is true for both weak-signal DX as well…
Author: Simone
Born in 1970 currently live in Florence Italy.
Married with 2 childrens work as IT Technician.
2 Meter mobile antenna
Do you have trouble getting your mobile signal into the LEO satellites? Try this small 2 meter vertical antenna with your mobile rig or HT and enjoy more success in your uplink. I built this small vertical because I could not uplink very well at low elevations and I just could not bring myself to…
4 Elelemt Yagi Beam Antenna for 20 meter
On picture 1 you can see the GK 4 element 20m yagi on a 40ft boom on the construction pedestal for the 20m stacks All of the yagis were built on the pedestal you see under the beams. Omega match on this new yagi for the 4X4 stacks has been adjusted using a TS-50 and…
End Fed antenna
This end fed type of antenna was marketted in the UK and is a useful system for the portable set-up. Being a half wave, no radials or counterpose wires are needed. As the impedance will be high at the end of the wire, some form of matching unit is needed and a simple parallel tuned…
How To Make A High Power 4:1 Balun
How To Make A High Power 4:1 Balun Info I built a homebrew 75 meter Double Extended Zepp Antenna,And I needed a 4:1 Balun , so I decided to Homebrew the Balun also.Here is how I did it! I used a 5 inch long piece of PVC Plastic pipe about 5/8 ID and about 7/8…
Web Shortware Receivers
I began dxing in 1986 with my old MARC II shortwave receiver. I used to wonder what it would be like to dx from distant points all over the world and country. I never would have imagined someday I would be using remote controlled receivers worldwide. We can use Icom PCR 1000’s, AOR_AR 5000’s, Kenwoods,…
The W5UN 2 Meter QUAGI 97
The W5UN Quagi 97 is a computer optimized quagi derived from the original W5UN Quagi of the early 1980s. The length of the 1997 model has been deliberately shortened to allow it fit on a 24 foot boom. Performance is substantially higher than that of the original antenna. It now compares favorably with yagis of…
The RockLoop Antenna
W9SCH described this small loop in Sprat 60 and it has proved useful to the QRPer, especially where space is at a premium. It is basically a variant of the usual magnetic loop, using a toroid balun to get a reasonable match on the three bands. A slow motion drive would prove useful on the…
CobWebb 5 band antenna
I have a very small back garden and am limited with what type of antenna I can use. I built my first antenna in July 2004. If you are looking at this after speaking to me, you know it works. It is basically a 5 band antenna comprising of 5 full half wave dipoles for…
The ever-popular inverted L antenna
Ever wanted to install a shortwave receiving antenna FAST?!!! Then I am almost sure that you will want to learn more about the “Inverted L” antenna… About the easiest effective skywire to build … Just two supports… may be two masts, a mast and a tree, a mast and a nearby building… it need not…