[Elecraft] Filters for the KBPF3

[Don Wilhelm]

Mike,

You do not *need* to purchase an additional filter, but you may want to.

If you want to listen to AM (not AMsync), then you would want a wider 
filter - with AM, you need to have enough room for both sidebands and 
the 2.7 kHz filter will limit the highest audio frequency demodulated to 
about 1.4 kHz..

If you want to also transmit AM, I would suggest the 6 kHz filter, but 
if you never will transmit AM, then I would suggest the 13 kHz filter 
for SWL purposes.

Sync AM can use the 2.7 kHz filter because only one sideband will be 
used at a time.

73,
Don W3FPR

On 8/13/2011 12:17 PM, Mike Weir wrote:
> I am considering the KBPF3 general coverage receiver option, I have the following filters in the rig 2.7 5 pole crystal stock filter, 8 pole Inrad 500, 400 and 200hz filters. Do I need to consider any other filter options if I do purchase the KBPF3 module?
>