http://elecraft.85.s1.nabble.com/Look-familiar-Elecraft-vs-Ten-Tec-tp6010845p6012156.html
>Ron wrote:
>
>>There are other differences that are not apparent on the front panel.
>>No CW keying waveform shaping, for one.
>
>The absolute worst feature of the R4020: Ten-Tec confirmed to me that
>the iambic keyer supports mode B only. I will never buy a rig with
>iambic keyer that functions in mode B only. (That is the only thing
>that caused me not to buy an IC-7000, a radio that allows many silly
>and superfluous features to be customized, yet does not allow the very
>important feature of iambic mode selection! Icom idiocy, but Yaesu
>and Kenwood do likewise. Even Small Wonder Labs provides Mode B only,
>but Jackson Harbor provided a PIC for the DSW to correct that fault.
>Elecraft is to be commended for standing out and providing selection.
>While I'm griping...notice that QST Product Reviews (like the one for
>the R4020) will spend a lot of text telling the reader how to do some
>odd-ball thing on the rig being reviewed, but will NEVER address iambic
>keyer mode.)
>
>There are a some good features to the R4020, compared to the KX1:
>(1) It has a four-pole IF crystal filter, something the KX1 needs to
> properly suppress receiving a signal on both sides of the zero-beat.
>(2) One doesn't have to waste time building the damned thing, which
> could be important. The KX1 has a reputation of being a bit
> finicky, especially if the four-band version is attempted.
>(3) It *does* have variable IF bandwidth (eight steps, IIRC). It's
> just not *continuously* variable. I don't like *continuously*
> variable IF BW. I'd rather have three steps like the K1.
>(4) It's a LOT less expensive. And when one factors in the value of
> one's own time saved not having to build it, it's a lot lot less
> expensive.
>(5) It apparently uses mostly surface mount components. Though it's
> not a kit, I wish kit manufacturers would use pre-assembled PCBs
> with all the mundane components pre-assembled. This is something
> that MFJ tried with their Cub QRP rigs. Good concept, imperfectly
> executed by MFJ.
>(6) It has a "whole" frequency display, out to 10 Hz resolution.
>
>The same outfit that builds the R4020 is producing kits for the TJ6A
>and TJ6A Pro six-band cw and ssb QRP rigs. This outfit could provide
>some real competition in a few years.
>
>Mike / KK5F
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