[Elecraft] K1 on 160M

Sun Jun 15 03:07:00 2003

Very interesting Steve

I've just modelled the band pass filter using "Tina", while perhaps not the
most accurate software for such tasks, it shows an increase in loss through
the band pass filter of around 10 dB... if this really was the case you
wouldn't get 7 Watts output. The lower loss option appears to be replacement
of L1 and L2 with 4.7uH coils, this looks to be very close to resonance with
the original (80m) capacitor values.

Now to get a four band board to cover 80/40/30/20... I don't suppose anyone
out there has already done that?

Dave, G4AON
K1 #1154, K2 #1892
www.astromag.co.uk/k2/

----- Original Message ----- 
From: "Steven Connors" <[email protected]>
To: <[email protected]>
Sent: Saturday, June 14, 2003 10:41 PM
Subject: [Elecraft] K1 on 160M

> I managed to put my K1 (#1152) on 160 meters using a 2 band filter board
> shared with components from Elecraft for 80.  From what I can tell it
seems
> to be working well.  Power out is around 7 watts max.  I don't have a
> spectrum analyzer (wish I did) but  using my Icom the harmonic suppression
> seems to be about the same as the other bands.  I only found a couple of
> other very weak spurious signals which didn't move the S meter at all.  I
> had looked through the archives for postings from others who had already
> tried to do this but couldn't come up with anything so I figured I'd post
> what I did for others who may be interested.
>