> That sounds like a huge improvement, but the ARR is a > high-end preamp if I am not mistaken. I guess my question is > really, is the K3 inferior to other transceivers in its price > class as regards 6m sensitivity?
I believe the tests were made with the economy version of the ARR preamp (P50VD: 1.3 dB nf, 15 dB gain). The P50VD is $49.95 ... A similar preamp is available from Down East Microwave .. the 6MLNA (0.7 dB nf, 18 dB gain) is $64.00 ($35.00 kit). > Most people would accept the need to purchase accessories to get > the last bit of performance. Paying out $150 (or $250) to bring > the performance up to what it should have been in the first place > is a different matter. I don't know that you can say performance on six meters should have been higher than the performance on the HF bands. There are probably more K3 users who will never use six meters in any serious way than those who will. However, the Elecraft preamp does represent a substantial premium for RX Loop pass-through and ease of integration. Whether the premium is justified is a decision for the user and the option allows those who need it to get the performance without taxing those who will never benefit from it. 73, ... Joe, W4TV > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Julian, G4ILO > Sent: Thursday, October 23, 2008 1:35 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] 6M Preamp > > > > > > Dave G4AON wrote: > > > > Julian, from my earlier measurements (from per my web > site): "Adding > > an > > external pre-amplifier between the RF out and RF in of a > KXV3 interface > > improves the sensitivity by 10 dBm giving 10 dB SINAD at > -136 dBm in 400 > > Hz bandwidth and a MDS of -146 dBm -which compares to an > MDS of -136 dBm > > without the pre-amp. > > > That sounds like a huge improvement, but the ARR is a > high-end preamp if I am not mistaken. I guess my question is > really, is the K3 inferior to other transceivers in its price > class as regards 6m sensitivity? Most people would accept the > need to purchase accessories to get the last bit of > performance. Paying out $150 (or $250) to bring the > performance up to what it should have been in the first place > is a different matter. > > ----- > Julian, G4ILO. K2 #392 K3 #222. > http://www.g4ilo.com/ G4ILO's Shack > http://www.ham-directory.com/ Ham > Directory http://www.g4ilo.com/kcomm.html KComm for > Elecraft K2 and K3 > -- > View this message in context: > http://n2.nabble.com/6M-Preamp-tp1366337p1369090.html > Sent from the Elecraft mailing list archive at Nabble.com. > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
