Whichever works better or BOTH if that works better. They do different things so I don't think you can answer the questions which is better.
I think you are trying to justify why to buy the KRX3. And the answer is a question (sorry): What is your intention for its use? You stated an interest in: 1) 160m 2) Weak/fading CW APF works pretty nice in peaking weak CW (and its free with the K3). But my understanding of 160m (not QRV there - yet) is that using a low-noise reception antenna in diversity mode can make a significant improvement in fading signals. Ideally (on 160m) that would be use of a long wire like a Beverage or smaller low-noise antenna like Pendant (but this depends a lot on how much real estate you have). On 600m as WD2XSH/45, I tried a 930-foot Beverage-on-Ground (BOG) and it did not work as well as my transmitting antenna which is a 43-foot vertical by 130-foot inverted-L. The signals with the Inv-L were 20-dB stronger (farthest Rx DX from Alaska is Buffalo, NY). The Beverage is moot as my neighbor removed it when he needed access across where it lay (I had it run along side his private airstrip). My next attempt for Rx antenna will be a shielded 6-foot diameter loop (rotatable) with preamp. (600m DX season is Oct. - Mar.) I run 100w RF output on 495-KHz to the base-loaded Inv-L with about 0.8% antenna efficiency (hard to make a 1/4 WL vertical at 600meters - 492 foot). My 4.15w ERP signal has been heard in Vancouver, BC about 1300 miles. (lots of info on my website) 73, Ed - KL7UW K3/10 with KRX3 ------------------------------ Message: 21 Date: Tue, 12 Jul 2011 19:39:42 -0700 (PDT) From: callen1155 <[email protected]> Subject: Re: [Elecraft] KRX3 vs APF on weak signals ?? To: [email protected] Message-ID: <[email protected]> Content-Type: text/plain; charset=us-ascii Thanks for the responses but I'm at a loss as to why the question is confusing. I'm trying to determine the most efficient method to hear weak/fading cw signals. I have read on here many times where folks brag on the 2nd receivers' ability to overcome fading band conditions via diversity receive using complementing antennas. I have read and experienced the benefit of APF under those same band conditions as well. I understand diversity receive and APF go about it two totally different ways but the end result is an improved ability to hear weak/fading signals. My question is simply, under weak/fading band conditions when you're straining to copy the cw sig (assuming you have both APF and diversity receive to choose from), which would you choose to improve your copy and make the contact? thanks again. chuck 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-? DUBUS Magazine USA Rep [email protected] ====================================== ______________________________________________________________ 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
