hello everyone. My K3 is # 80XX so it should be fine.
With my multimeter I checked R8 and it's reading 270ohms (mounted on the
board).
From the schematic I guess there should be no DC flowing and that I
should read 13.3k, so I think R8 is broken or the problem is in Q10 fet,
being resistive on the gate.
anyone has experience in this, before I start desoldering components and
measure them?
thanks
Enrico
Il 07/04/2016 22:24, Ron D'Eau Claire ha scritto:
Older K3 transceivers (built before September 2009) do have lower output
than later units. Elecraft published a modification that involves replacing
a single resistor to bring up the level.
They have a kit that includes an SMD and a leaded resistor (you can use
either, only one is installed). Order the KIO3BUFFKT. You can see what is
involved by reviewing the instructions available for download here:
http://www.elecraft.com/K3/mods/IF_Output_Buffer_Gain_Mod_Rev_A.pdf
If you have a 13K ohm, 1/8 watt leaded resistor or if you'd rather work with
an SMD, a 13K 0805 size resistor, you won't need the kit.
73, Ron AC7AC
-----Original Message-----
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Enrico
Lorenzoni IU3AZC
Sent: Thursday, April 7, 2016 12:55 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] low IF out on K3
hello everyone,
I just compared my k3 with a friend's one and my IF out is much lower than
his k3.
I suspected it when listening on a softrock, but now I can see a difference
like 10 or 20db off.
So I inspected my k3 and the IF out connector is fine. Multimeter says 0
ohms between bnc contacts and P86 pins on motherboard.
What can I check next?
Anyone did fix this same issue?
thanks
Enrico IU4AZC
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