This is my experience. Making a large-signal preamp is usually a waste of power since it is a mixer that is a limiting factor. I can believe that a device from DX Engineering can be poorly designed. Have NCC-2. Weighs like a tank but fragile like a baby. Ignacy, NO9E
On Tue, Aug 15, 2017 at 3:59 PM, Vic Rosenthal <k2vco....@gmail.com> wrote: > I disagree. A good preamp like the DXE preamps can handle large signals > and still be linear. That means they can output a lot of power. Do not > assume you are safe if there is a preamp unless it is a lousy one! > > Vic 4X6GP > > > On 15 Aug 2017, at 18:07, Ignacy <n...@arrl.net> wrote: > > > > If a receive antenna has a preamp, there no need to do any antenna guard > > since the preamp cannot destroy K3. > > > > I used K9AY, K7TJR 3 el array, and a Wellbrook loop close to transmit > > antennas. None was turned off during transmit. Both have preamps and > > nothing was damaged despite running a KW. Of all 3, K7TJR was the best > by > > far. > > > > BTW, the RX ANT input in K3 is protected by a RF activated relay. > > > > Ignacy, NO9E > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
