Casey -
The receiver came from Drake with the 150 ohm, 2W resistor "installed" in the AM filter slot, which is under the chassis. This means the receiver bandwidth is set at 8 kHz by the "roofing" filter in the first IF of the receiver. Drake also offered filters in 4 and 6 kHz bandwidths to plug in, in place of the resistor for steeper skirts and reduced bandwidth.
73, Garey - K4OAH Atlanta
Casey wrote:
Isn't that just a matter of putting a fixed value resistor across the connections of one of the filters (for the C I mean)? Haven't read the manual in a while, but that sticks in my memory. 73, Casey, KS7J
-----Original Message----- *From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] *Sent:* Tuesday, November 18, 2003 12:41 PM *To:* [EMAIL PROTECTED] *Cc:* [EMAIL PROTECTED] *Subject:* Re: [drakelist] Drake on AM
I think the best Drake receiver for AM is the R4B. It's got the
sensitivity and the selectivity already built in, ideal for AM. The
R4C is good, too, though you need to add the optional 6 or 8 kc
filter for best results. Just mu .02 worth....
73,
Ed NI6S
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