Hi
The short answer is - YES
I have the FM in slot 1 but do not have the AM filter. I have the 2.8 Khz in
slot 3 and the 400 hz filter in slot 4. I get 3 KHz bandwidth with the FM
filter on AM broadcast stations. If I crank the bandwidth above 2.8 Khz the
K3 switches to the FM filter but it is limited to 3 KHZ with the current
firmware.
Thanks
Don Brown
KD5NDB
K3 S/N 0575
--------------------------------------------------
From: "ab2tc" <[EMAIL PROTECTED]>
Sent: Saturday, April 12, 2008 4:24 PM
To: <[email protected]>
Subject: Re: [Elecraft] K3 AM operation with "FM" roofing filter?
Hi,
I am still confused as to whether I can *receive* AM with the FM roofing
filter with the *current* firmware. Can someone please give me an
authoritative answer on this? I have just received the FM filter and the
included note seems to imply that I have to wait for an firmware update. I
am not asking whether I can get more than 3kHz audio BW on AM with but
just
simply if it will work?
Knut - AB2TC
wb8yqj wrote:
So would operation without the AM filter be bad enough
to roughly approximate, say, a Heath DX100? Just about
the same as would suit me just fine but if not maybe I
need a wider filter? My guys are hard to please and I
know they're not going to be happy with the new rig's
weight already. ;-)
=====
I've not put this on the FAQ yet, but yes you can use
the FM filter for AM. But be advised it will degrade
performance some with reguard to selectivity. In
transmit, the DSP will work with the filter and
determine the TX BW. The exact specs on this are not
yet available.
73
Greg
AB7R
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