[Elecraft] K3 option questions

[Guy Olinger K2AV]

If you do get the 2nd RX and do diversity, using a 5 pole filter, you
will need to order one with a matching offset. Elecraft will do that,
for a small extra charge.

73, Guy.

On Fri, Aug 27, 2010 at 6:44 PM, George A. Thornton
<gthornton at thorntonmostullaw.com> wrote:
> Note responses:
>
> 1.  The TXCO-3 is not necessary.  The basic TXCO is quite stable enough.
>
> 2.  You will probably do fine with the 2.7 filter, but may have
> complications matching filters if you decide in the future to get the
> second Rx for diversity receive.
>
> 3.  For other filters, you could get by in casual use with just the 2.7
> or 2.8.  Filter narrowing can happen with roofing filters or with DSP.
> The narrow roofing filters do a better job of filtering out noisy
> neighbors than DSP filtering.  IF you are just casual and don't care
> about digging out a weak station in a crowded band, then you can save
> some money.  That being said, having one or two of the narrow filters
> gives you the opportunity to test out this rig's true capability.  That
> is worth the price of admission.
>
> 4.  The KUSB is just an adapter cable.  They are sold everywhere and you
> do not have to buy one from Elecraft.
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Linda and Bob
> Sent: Friday, August 27, 2010 3:07 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] K3 option questions
>
> 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
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