[Elecraft] Elecraft KX1 - a builder's review

[Eric Norris]

My KX1 has the old 30m board.  Its power output is 4,2w on 20m from a 13,8 supply., but approaches 7 watts with the A123 pack.  Perhaps the 80m board lowers the output, I have no way of testing.  I don't think 80m QRP is as popular on the Left Coast of the U.S as it is elsewhere.  I rarely operate there anyway.

73

Eric. WD6DBM

Johnny Siu <vr2xmc at yahoo.com.hk> wrote:

>Basic KX1 gives more power.  I am not surprised for power output over 4W.  However, with the addition of KXB3080 module, the low pass filter LPF1 is a compromise, it will be hard to squeeze power up to 4 watts.
>73
>Johnny VR2XMCKX1 # 2839
>      寄件人︰ Eric Norris <norrislawfirm2 at gmail.com>
> 收件人︰ Mike Morrow <kk5f at earthlink.net> 
>副本(CC)︰ elecraft at mailman.qth.net 
> 傳送日期︰ 2014年12月17日 (週三) 2:55 PM
> 主題︰ Re: [Elecraft] Elecraft KX1 - a builder's review
>   
>
>
>My KX1 puts out over 5 watts when powered with an A123 LiFePO pack, and will run longer than I can from a small.4S1P battery.  It fits perfectly into a Pelican 1060 box, which makes it nearly indestructible when using it to soften face plants while xc skiing.  It's perfect as is, though a 40-20-15 version would be interesting.
>
>I'd like to see a single-band KX0, the size of a Rockmite, a full 1-2 watts out, with attendant Elecraft mojo.  THAT would be cool.  It could use an outboard T1 for tuning wires.
>
>73
>
>Eric WD6DBM
>
>Mike Morrow <kk5f at earthlink.net> wrote:
>
>>Phil wrote:
>>
>>> A reasonable assessment, Johnny. Of course the KX1 
>>> was designed as the ultimate Trail-Friendly Radio 
>>> (TFR) and that it is!
>>
>>I always preferred the K1 versus the KX1.  I must have 15m,
>>plus the KX1 really needs a four-pole IF filter, IMO.
>>
>>I have a dream of a KX2 that is a KX1 descendant, with four-pole
>>filter, 15m and maybe other bands not on a KX1, back-lit LCD vs
>>LED, noise blanker, and everything required for the band coverage
>>laid out from the start in the design, and not as an after-
>>thought.  (As has been often noted, the KX1 is not particularly
>>easy rig to build with all the options.)  I'd also like to see
>>5 watt output on all bands with 14 vdc power.  Perhaps it could
>>even be a factory-built SMT design.  Finally, that KX2 would need
>>an ATU capable of far more than 254 combinations of reactance
>>insertion.  The KAT1's 1022 combinations would be minimum, IMHO.
>>
>>A small, capable, simple-to-operate, very low-power-consumption
>>QRP rig still has great appeal even with availability of the
>>overwhelming capability of the KX3.  I'd like to have both.
>>
>>...and the KX2 slot in the Elecraft line needs filling! :-)
>>
>>Mike / KK5F
>