Does anyone remember the Datong RF Clipper , I used one in the 70's with a SB 102. It did really help ! 73 de Jacques F9OJ K2 0937 K3 2450 ----- Original Message ----- From: "Wes Stewart" <n...@yahoo.com> To: <elecraft@mailman.qth.net>; "Ignacy" <n...@arrl.net> Sent: Friday, February 06, 2009 6:04 PM Subject: Re: [Elecraft] OT: RF Clipper "works with Elecraft"
> > Careful reading of the TenTec ad will show, by what they omit, the problem with RF clipping: the intermodulation distortion. > > If you are not a K3 owner, or have another radio, and are interested in an add-on device then you might look at Note no. 5 here: > > http://k6mhe.com/n7ws/ > > I sold a couple of hundred sets of boards for this (at cost), Circuit Board Specialists produced them (complete with my call on the board and without my knowledge) and a kit company was founded on the design. Nope it wasn't mine, the Editor of Ham Radio Magazine founded "Radio Kit" simultaneously with the publication of the article. Exploring the ethics of this is left for an exercise for the reader. > > The split-band approach is also used in the Kenwood TS-870, prized by many for its great transmit audio. See: > > http://k6mhe.com/n7ws/TS870_In_Depth_Manual.pdf > > Note to Ignacy: Being outside the ALC loop isn't necessarily bad. A properly adjusted processor can eliminate the need for ALC. > > > Wes N7WS > > > --- On Thu, 2/5/09, Ignacy <n...@arrl.net> wrote: > > > From: Ignacy <n...@arrl.net> > > Subject: Re: [Elecraft] OT: RF Clipper "works with Elecraft" > > To: elecraft@mailman.qth.net > > Date: Thursday, February 5, 2009, 8:50 PM > > I used a number of external speech processors with mobile > > radios to increase > > their punch. My design (2 x 9 Mhz filters), design by DF4ZS > > and and old one > > by MFJ. It was hard to get good boosts because an extrnal > > processor is > > outside the ALC loop creating extra distortions and filters > > in many > > processors (including DF4ZS) are poor. 715 uses 2 > > inexpensive ceramic > > filters with a BW of 4 Khz. K3 with its processor + an > > equalizer is a > > killer DX machine. Just crank it up. > > > > Ignacy > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG. > Version: 7.5.524 / Virus Database: 270.10.7/1895 - Release Date: 15/01/09 07:46 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
