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News & Announcements

First Production Run Received!

After a long development, prototype and testing phase, we have great news today.

The first lot of production version filters have been received and will ship to buyers on Monday, 8/30.

The order backlog will be cleared fully and based on NS's production forecast, the next lot will clear the remaining backlog.

FT-2000 Roofing Filters

Latest news, data.

FT-2000 Filter Order Information

Be the first to get your new filters.  Order here

FT-2000 Filter Installation

Step-by-step, how-to install the NS roofing filter.  NEW!

FT-2000 DSP Filter Characteristics

Plots of the DSP filter. As well as an investigation into the magic behind APF.  And how about CONTOUR?  It's all here!

FT-2000 Sub Rx Mods?

Investigations into the sub rx including filter response, quiescent noise and more...

Add APF to the Sub Rx

Follow the progress on this new project here.  See the results of a basic single op-amp design - and check out this computer controlled 24-pole version under construction now.  

FT-5000 300 hz Roofing Filter Characterization

How does the advertising and the reality match up on this filter?  Take a look here for answers...

The Ultimate Audio Filter

Microprocessor controlled, variable everything, 30 pole SCF filtering with multiple LPF and BPF modules - overall performance rivaling  that of DSP!

Loud Enough?

Station speaker amp featuring 2 channels, 50W RMS per side, HPF/LPF integrated for communications use

New Antenna Array

ACØC is QRV on 160-6m with a new 4th generation stealth antenna array.  6m elements added just in time for 2010's Field Day.  

SB-200 Sleeper

Possibly the most radical SB200 mod ever.  You be the judge!

CW Skimmer Array

160m-6m bands. 24x7 service. Based on the high performance, low cost Softrock SDR.  A great DX tool that you can build.

NS Filter Installation Proceedure - Updated

The complete process, in full detail with latest tips.    

FT-2000 + NS Filter Equals Performance of the $11,000 Yaesu PEP FTDX-9000MP and $10,600 Icom IC7800!

According to a new lab test reported in the July issue of QST, the DR3 performance of the Yaesu flagship rig is 85db 2Khz spacing DR3 test.  That's the same as the FT-2000 with the NS filter.

Also, a look back at prior QST reviews for the IC-7800 Icom flagship rig shows an ARRL-reported 86 db 2 Khz spacing DR3 test.

ARRL members can access the lab results here:

IC-7800 QST 03-2007

FTDX-9000MP QST 07-2010

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2011 WØDXCC Convention

July 23, 2011

Presented by the

Kansas City DX Club