You may wish to install the IF Output Gain modification, http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf. This mod has already been installed if your rig was built after about September 2009.
It isn't essential, but you'll probably want to do this if you have a P3. The mod replaces one resistor. You'll need to connect to the K3's IF output, provided by the KXV3 or KXV3A Rx Antenna, IF out, and Transverter interface option. The KIO3 does not require any changes for the P3. You can install the KXV3A yourself, and the IF Output Gain modification is straightforward. The SMD parts are quite small, and it's easy to lose track of them. Of course you can send your radio in if you'd prefer to have the mod installed at the factory. It took me a few minutes with the SMD part, and you'll want some magnification. But it's just one resistor, and you can use the leaded resistor if you prefer. The upgrade kit includes both a leaded and SMD resistor. 73 de Dick, K6KR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Miller KG0KP Sent: Tuesday, July 27, 2010 11:02 AM To: Elecraft Reflector Subject: [Elecraft] P3 and required options Which of the options/upgrades should be installed for the P3 to function at optimum capability? Is it the KIO3 bd and what is the effect of trying to use the non-upgraded board? Was this the bd that can be ordered on swapout or should I send in mine to be upgraded? How long does it take? Thanks es 73, de Jim KG0KP ______________________________________________________________ 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
