Oh boy never write an e-mail before awaking fully...
sorry
Hi Greg & Lyle,
Does this mean that one can not reconfigure the radio so that either
RX is considered to be the main RX? In other words, one can not
directly tune the KRX3 using the large knob?
It would be nice if one could choose (independent of the logical VFOs
A & B) which RX is tuned by which knob. Obvisiously, if the KRX3 is
being used as the "main" RX, then the VFO of the standard RX/TX would
have to switch frequencies, between RX and TX, very quickly, assuming
that it is tuned to a different RX frequency.
Possible? Not possible?
vy 73 de toby
--
DD5FZ, 4N6FZ (ex dj7mgq, dg5mgq, dd5fz)
K2 #885, K2/100 #3248
K3/100 #??? (< #200)
DOK C12, BCC, DL-QRP-AG
----- Original Message -----
From: "Greg" <[EMAIL PROTECTED]>
To: "Toby Deinhardt" <[EMAIL PROTECTED]>;
<elecraft@mailman.qth.net>
Cc: "Lyle Johnson" <[EMAIL PROTECTED]>
Sent: Tuesday, May 08, 2007 6:11 AM
Subject: RE: [Elecraft] 2nd RX and roofing filters (sought of)
Toby,
Transmit filtering is accomplished in DSP and with the crystal IF
roofing
filters ON THE MAIN RX board.
If you have the subreceiver option installed, all you have to do is
select
VFO B to use it. The RX filters on the sub RX board will then come
into
play, but you must remember that only the filters on the main RX
board will
be used for transmit. VFO B tuning will be done with the smaller
knob. If
you want to tune with the large tuning knob, you can use the A<>B
button.
But if you do, the filters on the main RX will be in play.
Hope this helps!
73
Greg
AB7R
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Toby
Deinhardt
Sent: Monday, May 07, 2007 3:31 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] 2nd RX and roofing filters (sought of)
Hi,
I hope I am not over looking anything the FAQ or the stream of
mails
during the last several days. If not, this might be something for
the
FAQ.
If I have understood correctly, the filters which one wants to use
for
TX must be in the standard receiver and not in the KRX3 .
In my case that would mean that the FM bandwidth filter will end up
in
the primary rx. I have also ordered the 6kHz filter, mainly for
SWLing. As far as other filters are concerned, I have not made any
final decision yet.
One idea that I have, is to set up one receiver as a general
purpose
RX and trim the other RX for good contest performance.
Assuming, just for the sake of argument (without caring about how
sense this combination of filters actually makes), that the filters
are set up like this:
standard RX | KRX3
------------+----------
FM | 2700 Hz
---- | 2100 Hz
6000 Hz | 1800 Hz
2700 Hz | 500 Hz
500 Hz | 250 Hz
Will it be possible to have the KRX3 act as the primary RX during
contests while using the standard RX as the secondary, and vice
versa
when not contesting? Among other things, I assume, this would mean
the
tuning for the KRX3 and TX would be on the "big knob" and the
tuning
for the secondary (standard) RX would be on the "small knob".
If so, would this entail any limitations and will this be
transparent
for the OP (important after 30 or more hours of no sleep)?
vy 73 de toby
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