[Elecraft] Re: K1 Frequency Stability

[giuliano]

 Julian,

 i summarize here same measures:

-RX/TX band coverage is  about 250 KHz. (14000 -14250 Khz and 7000-7250 Khz)
This coverage is possible adding a 68 pF ( NP0 cap.)  parallel to C2, so
the total cap. is 168 pF.

With this mod i have this frequency drift:
after 5 minuts warm-up: initial measurement ,
after 1/2 hour:  -130 Hz
after 1 hour: -260 Hz

I have only a 2 band filter board (40/20 m) so i have made measures only for
these  band.

Coverage on TX is, for all 250 KHz:  4-6 Watts

The mod. isn't yet Elcraft approved because Wayne, in this moment, is very
 busy with others new projects and  suggest me to make more tests with
others
HAM; so I am serching for betatester.
Wayne tell me that can test the mod. on the Elecraft laboratory later on
July or August.

73
Giuliano I0CG


> "Julian, G4ILO" wrote:
>
>
> > I wondered about that, too. What band coverage does a K1 have? It
doesn't
> > appear to be listed in the data sheet.
> >
> > What's the "official" Elecraft view on this mod? I can't find any info
or
> > links to it on the Elecraft site. A K1/SSB would be what I hoped the
> FT-817
> > would be, but I'd really prefer to see a fully Elecraft approved version
> of
> > this mod.
> >
> > 73,
> > --
> > Julian, G4ILO. (RSGB, ARRL, G-QRP, K2 #392)
> > G4ILO's Shack: http://www.qsl.net/g4ilo
> >
> > "Martin AC6RM" <elecraft@ac6rm.net> wrote:
> >
> > Say, does anyone have any data on the frequency stability of the K1?
With
> > I0CG's mod, I was thinking it'd make a cool dedicated data radio ...
> > 73, Martin AC6RM k2/100 #3021