[Elecraft] K3 option questions

[Linda and Bob]

I am ordering my K3 sometime next week. I want to make certain that I order the suitable options when placing my order. The K3 will be factory assembled. I am not a contester. I enjoy RAG CHEWING on SSB and CW. I do not currently do any digital modes; not active on HF FM; do not normally listen to SWL; do not intend to work AM on the HF bands.

Currently own an ICOM IC-7800 and IC-756PROII. No need for a second RX in the K3 with optional filters for it. The IC-7800 already has this feature; the IC-756PROII has dual watch. I use two THP amps, HL-1.5KFX, one for each ICOM. I may switch one amp out to use with the K3. I can get the THP amp adapter cable from DX Engineering for $35. I also use a Palstar AT-AUTO ant. tuner with the IC-7800.

(1) Do I need to order the TCXO-3? Is it necessary for greater stability?

(2) Should I order the 2.8 8-pole SSB filter option instead of the standard 2.7 5-pole in the first RX? Will I notice much of a difference?

I plan to order the KAT-3F, a 400 Hz CW filter KFL3A-400; KXV3A, K3/100-F, KFL-3A-1.8K SSB filter (8-pole); KUSB adapter; I may order KFL3A-2.8K 8-pole filter if recommended (order at the $109.95 swap out price when placing my order). I don't believe that there are any other filters that would help me operate based on my criteria above. Maybe the 250 Hz for CW, but with the great K3 PBT and high/lows cuts, it may only be another expense not needed.

Since most new computers seem to have more USB ports than RS-232 ports, the USB adapter may be useful. Does Elecraft actually switch out the RS-232 jack for the USB or do they just send you an adapter cable?

Any help, comments and suggestions would be most appreciated. The Elecraft Reflector seems to be a wealth of knowledge for the new or old Elecraft owner. Thanks to everyone who answered my previous post about the Heil HC-6 Pro Elite headset and the Yamaha CM-500 headset.

Bob Wilderman, K3SRO
dlrwild1 at comcast.net