On 2015-05-14 3:41 PM, Ross Primrose wrote:
I got the impression that new KBPF3As will have the necessary parts of the mod, but as I recall when the mods were described a few weeks back that there were changes that would also need to be made to the RF board & KRX3. Hopefully in the next few days there will be some clarification on exactly what a K3 (no S) owner with no KBPF3s and the old synth(s) needs to actually buy/mod to get on the bands below 500kHz...
To get on 630 meters no changes are likely to be needed. The existing KBPF3 is good down to 250 KHz or so and the internal noise is below the "sky noise" there. To get reasonable receive performance at 137 KHz, both the filter and bypass mods (RF board/KRX3) will probably be needed. I'm hoping that the bypass mods are a substantial portion of the "lower RF and digital noise" in the new K3S RF board. It would be a shame if one needed to replace the K3 with a K3S because of a significant change there. 73, ... Joe, W4TV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
