X phase 2 qrm eliminator

The QRM Eliminator is based on a totally innovative concept and cannot be compared to the performance of noise blanker or DSP circuits. Removing the noise wikifeet it gets to the receiver is the superior method of interference reduction. The QRM Eliminator x phase 2 qrm eliminator inserted into the feedline from the trx to the antenna without any additional modifications required to the radio.

If you live in the city or close to industrial facilities, you probably have high RF-noise level on your HF radio receiver from local sources that causes interference and difficulties in receiving weak radio signals. The solution is either to go out of city, in rural area far from RF-noise sources or to try this practical device and reduce or eliminate the local noise. It really helps so that you can listen many more DX stations that are hiden in the ocean of noise. The QRM Eliminator is inserted between transceiver and the antenna without any additional modifications to the radio. An additional auxiliary receiving antenna is required. It can be simply a few meters wire in the shak or outside. The unwanted signal is received with both antennas.

X phase 2 qrm eliminator

I found out that the antenna for receiving QRM, the auxiliary or secondary antenna, holds the key to optimum performance of the QRM eliminator. A single wire along a shelf in your shack is, for what I tested, not enough. There is one specific antenna that does an amazing job. First of all I need to explain about my antenna setup. My main antenna was a 13m 31 ft tall vertical. This antenna setup allows me to work on all HF bands. The downside… it picks up loads of man-made noise. The QRM eliminator manual says that a single wire in your shack can do the job. That being said, I ran a 4 meter 17 ft wire across the edge of the ceiling as an auxiliary antenna. It could perform better than this. The QRM eliminator enables you to adjust the signal levels on both the main and aux antenna. When at the same level, the signal from the aux antenna will cancel out the signal from the main antenna as you adjust the phase angle. Presuming that bringing the aux antenne outside the shack, would increase its signal level. The one antenna available outside is a dipole for 6 meter band, which sits at 10 meters 33 ft above the ground.

Presuming that bringing the aux antenne outside the shack, would increase its signal level. Skip to content Boost your QRM eliminator performance with an active antenna. I have purchased the Kit-complete from here.

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If you see figures regarding solar activity, you could conclude that we are very close to the start of a new solar cycle. That means within a few years my beloved 10 meter band will open up again for DX. On 10m even up to S9. I wanted to tackle this QRM without my neighbor having to shut down his solar panels. By coincidence I ran into a video shared by an old radio friend in Switzerland. He demonstrated a QRM Eliminator. I always thought that these devices were not very effective, but I was impressed by how he just turned the QRM away. Good to know is my radio setup.

X phase 2 qrm eliminator

I found out that the antenna for receiving QRM, the auxiliary or secondary antenna, holds the key to optimum performance of the QRM eliminator. A single wire along a shelf in your shack is, for what I tested, not enough. There is one specific antenna that does an amazing job. First of all I need to explain about my antenna setup.

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It should perform better than this The QRM eliminator manual says that a single wire in your shack can do the job. Product description The QRM Eliminator is based on a totally innovative concept and cannot be compared to the performance of noise blanker or DSP circuits. I could double the length of the whip to cover the longer wavelengths, but that would negatively affect the shorter wavelengths bands To get maximum performance on all HF bands, I needed to: Increase the overall signal level from the aux antenna. Its size, 20cm 8 inch , allows you to mount it anywhere you like, close to the main noise source. Man-made noise is mostly vertically polarized Presuming that bringing the aux antenne outside the shack, would increase its signal level. Click the News header on Home page then look for Add News button. If using an anonymous eHam user ID for submitting reviews be aware that there has been a court ruling regarding identity disclosure of writers of false reviews. Do not transmitt with transceiver connected to the QRM-eliminator without PTT connector pluged under any circumstances! Now, the use for which I wanted it: in my rural location I have nearly no noise except on 80mtrs from a power-pole transformer in a field adjacent to my property. This is not a DSP or noise blanker. The circuit employed is similar to the others and identical to Wimo. This gave me S9 of noise on 20mtrs. My noise antenna is a homebrew active loop.

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I found this to work amazingly well. I am still experimenting but the trick with this unit is getting the noise antenna to pickup a similar amount of noise as the main antenna. Its size, 20cm 8 inch , allows you to mount it anywhere you like, close to the main noise source. Time Owned: 3 to 6 months. The MFJ uses 3 J, while this unit just 2. The enclosure box and connectors I have boght from the local store for electronic components here in Macedonia. First the KIT arrived from Russia well within the expected delivery time. Metal has a disturbing effect on a Miniwhip, so I mounted it on a 2. The delay can vary from minutes to a day or more. You can use cheap RG coax cable, or even TV coax and use a power feed unit to supply current to it via the coax cable.