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write your own review of the DX Engineering NCC-1 receive phase controller.
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F6DEX
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Rating: 5/5
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Nov 19, 2011 03:55
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Very well conceived device
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Time owned: 0 to 3 months
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Until now, I had a Timewave ANC4 to cancel the local noise (plasma TV, DSL…); ANC4 provides good nulls of noise (while it is sometime difficult to find the best settings) but suffers from intermodulation products (I even built a band pass filter to avoid intermodulation on 20m). In comparison, the NCC-1 gives similar noise cancelling but it is much more easier to use (finding the null is very fast and easy), has less losses but more important absolutely no intermodulation products. It is very versatile with switchable attenuators, TR control line and voltage and connections for active antennas on both inputs. It is also very solidly made (the box is a little too big however…). + support is excellent. Recommended.
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M0SVA
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Rating: 5/5
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Feb 20, 2011 01:59
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DX-ers' delight!
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Time owned: more than 12 months
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To be receiving in blinding sunlight at 9 o'clock in the morning my local time, TransAtlantic DX from 5150 km (3200 m) away and very easily as low as 1510 kHz (or even lower) is something I have to tip my hat to DX-Engineering (Wellbrook & Perseus too)!
*Station: WWZN Revolution Boston 1510 AM Boston
*Antennas used: 2 x Wellbrook 1530 (1m diameter)
*Phased with: DX-Engineering NCC-1
*Receiver: Microtelecom Perseus
Not much needs saying, seeing is believing:
http://www.youtube.com/watch?v=6Wtsz-uhlZw
73
M0SVA
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vk4vgk
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Rating: 5/5
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Nov 5, 2009 01:56
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Magnificient
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Time owned: 0 to 3 months
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NB. POSTED UNDER MY OLD VK2VGK EHAM PROFILE - MY CURRENT CALLSIGN IS VK4VGK
Living off the grid can be fun if...
My RFI situation was dire... specifically because my shack is located inside a shed that houses an incredibly RF noisy 7kw 48vdc to 220vac inverter that powers my home which runs on solar / wind which is entirely off-the-grid. I tried a few alternative inverters, but the problem appears systemic.
The inverter generates extreme RFI that splattered and destroyed every HF band making even local contacts miserable and usually downright impossible - if I could have turned the inverter off while operating the radio I would have, but the house (located 100 meters away) and my family demands 24/7 juice and running off batteries made absolutely no difference... the RFI wasn't so much down the wires as in the air, so all the "mains" supply filtering in the world was not gonna help and my hearby HF antennas were also soaking it up big time.
After several helpful emails with DXE customer support (Rod Ehrhart - WN8R) explaining my situation, I ordered the NCC-1 RTR-1 combo on the basis that my extreme nearfield RFI problem was a bit of a new egg to the classic NCC-1 noise cancelling target and it may or may not help - but worth a try for someone for whom the alternative was simply to shut down the station, sell off most of my gear and go mobile.
Rod explained a method off deploying the NCC-1 without the RTR-1 using my radio's RX antenna facility, but I decided to add the RTR-1 as a failsafe approach to hook-up anyway.
The NCC-1 and RTR-1 was despatched rapidly from DXE and arrived safely in Oz in a wonderfully packed carton a few days later. I followed the excellent accompanying manual/s and valuable setup diagrams (download the manuals from the DXE website and check out the brilliant bunch of well illustrated hook-up examples and possibilities) and within 30 minutes I was on the air with NO LOCALLY GENERATED RFI WHATESOEVER!!!
The great news is that, based on the RTR manual's diagram eight (One Monoband or Multi-band Vertical Antenna phased with a (passive rx antenna substituted) using DXE-NCC-1 Receive Antenna Variable Phasing Controller) I have achieved complete nulling of the S9+ interference generated by my off-grid 7kw solar inverter located just 4 meters from my radio in the shack.
In the past I have owned the old JPS ANC-4 (now owned by Timewave) and thought it did a reasonable job of reducing nearby powerline noise, but this solution and its awesome results belong to an entirely different realm.
My favourite 40 meters and every other HF band I turn to has been restored to absolute perfection - with zero trace of the extreme RFI that made my amateur radio shack entirely unworkable and the occasional prospect of relaxing SWL DX simply out of the question.
In lieu of an external active antenna, I placed the passive RX antenna (non resonant wip) right next to the inverter and thanks to the great range of control and dual antenna relative attenuation capabilities of the NCC-1 the local noise was completely and easily phased out.
My Bushcomm BBA-100C wideband HF antenna has also really come to life. Even my Palstar AT2K antenna tuner seems to be behaving more effectively across all the bands which is great news for DXSWL.
I am using a Yaesu FT-2000 with the RF Space SDR-IQ / IF-2000 pan display on a monitor that provides incredible visual testimony to the truth of what the NCC-1 is doing. You can literally see the RFI spikes dissapear off the 190Khz wide scope with zero impact on the desirable backgound RF noise floor - all of the sensitivity remains on each band, but the nuisance intermods just slip away... leaving the skies open for the first time!!!
I can not overstate the change this DXE gear has made to my Ham life... Amazing!!!
Thanks to WN8R and the brilliant engineer/s at DXE for giving me back the joy of HF ops - thoroughly recommended - best ham investment ever!!!
Greg K
VK4VGK (formerly VK2VGK)
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