Lee -
Yes, it would be using the Product Detector and so you would be using
"exalted carrier" for AM. I made the (rash?!) assumption that you would
put the narrower filter in the CW spot to use during difficult
conditions where exalted carrier would be an advantage.
The Third Mixer LO is also switched for AM to center the passband of the
50 kHz IF.......
Most likely will not be satisfactory. If you're going to use exalted
carrier anyway, you might as well use the SSB filter at 2.1 to get the
full advantage.
Thanks for pointing out my error(s)!! :-) That's what I get for
thinking too early in the morning!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
Won't it be using the wrong detector? How about the BFO being on?
Of course you could use exaled carrier method of reception....73,
Lee
-----Original Message-----
From: Garey Barrell <[email protected]>
To: drakelist <[email protected]>
Sent: Sat, Oct 3, 2009 10:32 am
Subject: Re: [Drakelist] Drake R4B
Tim -
I've never tried it, but it should work, sorta.... :-)
The AM filter position has three resistors to match the filter
impedance, (apparently different than the CW/SSB filters?,) and most
likely to increase the insertion loss so that the output level stays
approximately the same when switching between the two types of filters.
So just plugging in the filter may work, but the passband may be
distorted and the output may increase considerably when switching to
AM. It certainly won't hurt anything to try.
I would say try just plugging it in, and let us know the results!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com <http://www.k4oah.com/>>
amfone wrote:
> Hello
>
>
> I have and R4C. If you install an AM filter in one of the CW slots >
will in function properly? I already have a 4KC filter in the correct
> AM slot but want to add an additional 6KC filter as well, the only >
vacant slot is the CW slot.
>
> Thanks Tim
>
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