yes Eric _..._ -----Original Message----- From: "Joe Subich, W4TV" <li...@subich.com> Date: Tuesday, Aug 25, 2009 1:11 pm Subject: RE: [Elecraft] K3 Future Factory Hardware Updates; + New beta f/w release 3.27 To: Reply- <li...@subich.com>To: "'Eric Swartz - WA6HHQ, Elecraft'" <e...@elecraft.com>, <elecraft@mailman.qth.net>
Eric, > Please note that the last item, the IF Output Buffer Gain mMod, is slightly different than the similar N8LP mod some have been performing on their K3s independently. We determined that only one value needs to change to implement the gain increase for the IF output. We are changing R8 from 1K ohms to 13K ohms. Are you saying it is not necessary to increase the current in J309 to handle the higher signal levels? With this change, what is the transfer gain/loss from the antenna input to the IF output with the IF output terminated in 50 Ohms? 73, ... Joe, W4TV > -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Tuesday, August 25, 2009 1:53 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Future Factory Hardware Updates; + New beta f/w release 3.27 Hi Roy, As of today, we have made the following enhancements to all K3s leaving the factory: K3 VFO TUNING NOISE REDUCTION (requires f/w 3.25 or later) K3 AUTOMATIC FRONT END PROTECTION (1 wire mod) K3 IF OUTPUT BUFFER GAIN MOD (For the P3, LP-PAN etc) (1 resistor value change) Based on feedback form those that have tried the preliminary release of these changes, we are comfortable with adding them as standard K3 features. Please note that the last item, the IF Output Buffer Gain mMod, is slightly different than the similar N8LP mod some have been performing on their K3s independently. We determined that only one value needs to change to implement the gain increase for the IF output. We are changing R8 from 1K ohms to 13K ohms. (Those that have made the N8LP mod may also leave it as is.) Also, we are releasing new beta f/w today, MCU 3.27/DSP 2.24. This is already available on the web page at: http://www.elecraft.com/K3/k3_software.htm This release includes: *ADDITIONAL NOISE REDUCTION (NR) IMPROVEMENTS. *AUTONOTCH depth improved. *SHIFT=.01 FIXED WITH LOW SIDETONE PITCH (300 Hz). *VFOs NOW TUNE DOWN TO 490 kHz. We never sleep in Aptos! :-) 73, Eric WA6HHQ Roy Morris wrote: > I would like to know if is the intention of Elecraft to incorporate > the K3 AUTOMATIC FRONT-END PROTECTION mod and the K3VFO TUNING NOISE REDUCTION mod in future PC boards. If so, I plan to install these mods in my K3s. Roy Morris W4WFB > ______________________________________________________________ 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 ______________________________________________________________ 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
