Hi Kevin,
I have an R-4C and a TR-7. The R-4C just has a resistor in the AM slot.
Whereas the TR-7 has an actual 6KHZ filter in it's AM slot.
I have to admit the AM does sound better with the filter (less noise,
all signal).
There is a company named INRAD (nice folks) that will sell you a 6KHZ AM
filter for your R-4C. Here is a link right to the page of the filter:
http://www.inrad.net/product.php?productid=182&cat=100&page=1
Unfortunately, they are $130.00. You can keep an eye on Ebay for one,
but even there they are going to set you back 75 or 100 bucks.
I keep hoping one is going to fall out of the sky and hit me on the head
(or land in my backyard) but it hasn't happened yet.
Good Luck & 73,
Bob K6GGO
Hi All,
I am thinking I might like to narrow the AM bandwidth just a little in
my R4C. I am thinking of a 6 kHz filter. Can any of you tell me what
is available out there in that bandwidth and what you think the
approximate cost might be?
Thanks much and very 73.
Kevin :)
Amateur Radio: K7RX
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