There is a high pass filter in the K3 to protect the t/r switch. It is in the circuit to the main antenna input. To listen to the bc band you should use the rx antenna input which is after the h/p filter.
Vic 4X6GP/K2VCO Sent from my phone > On Oct 21, 2015, at 1:36, Carl Jón Denbow <c...@n8vz.com> wrote: > > I recently installed a KBPF3A in the sub receiver. I've been surprised to > discover on direct A/B comparisons using the same antenna that my old TT > Jupiter is much more sensitive on the broadcast band. A station that comes > in at S-6 on the Jupiter is maybe an S-2 on the K3s. This is very > noticeable to the ear, as you might imagine. I'm wondering if anyone else > has noticed that the KBPF3A is not exactly optimized for the broadcast band. > > Also, I have another issue related to the Jupiter and the K3s. I tried to > install my new SP3 so that I could switch between using it with the K3s and > the Jupiter with the front switch. However, when I hook the K3s to the SP3 > when the Jupiter is connected, it immediately mutes the speaker. I can then > switch to the K3s connection, and it's working fine. Switch to the Jupiter > and it's muted, unless I physically disconnect the K3s in the back of the > SP3. I've looked at the rather simple schematic of the SP3, and I can't > figure out why this is happening. It appears to me that something must be > shorting ring and sleeve in the K3s, but I can't exactly figure out how his > can be happening. Any help would be appreciated. > > 73, > > Carl > -- > ================================================= > Carl Jón Denbow, N8VZ > 17 Coventry Lane > Athens, Ohio 45701-3718 > > c...@n8vz.com > www.n8vz.com > EM89wh > > IRLP 4533 Echolink 116070 > > PSK and JT65 Forever! > ================================================= > > ______________________________________________________________ > 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 k2vco....@gmail.com ______________________________________________________________ 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
