[Elecraft] K3 KBPF3 Benefits without SubReceiver?

k4tmc at aol.com k4tmc at aol.com
Sat Dec 22 22:53:21 EST 2007


Kyle, et al,

Thanks for the quick responses.  OK, it looks like the KBPF3 turns the 
K3 into a general coverage receiver without having to order the 
SubReceiver option.  That sounds like a reasonable option to have to 
allow listening to the CB/FRS bands :-)

My concern about the mounting location is the affect of the KBPF3 
circuit board with similar tuned circuits in such close proximity to 
the ham band tuned circuits.  The affect may be subtle and only 
detectable in unusually strong signal situations.  I just do not want 
to add something that could slightly reduce the K3's performance in the 
ham bands.  Instead, I can buy a good used separate 0.5 - 30 MHz 
receiver for SWBC coverage for the same price as the KBPF3.

73,
Henry - K4TMC


-----Original Message-----
From: Lyle Johnson <kk7p at wavecable.com>
To: k4tmc at aol.com
Cc: elecraft at mailman.qth.net
Sent: Sat, 22 Dec 2007 10:17 pm
Subject: Re: [Elecraft] K3 KBPF3 Benefits without SubReceiver?

> ... what benefit would it be to get
> the KBPF3 General Coverage RX Filter Module?  ...  will this impact 
the

> performance while in the ham bands?


The KBPF3 is switched into the signal path instead of the ham-band
bandpass filters when you tune the K3 outside the ham bands.  When you
are tuned inside the ham bands, it is bypassed and the standard 
ham-band
filters are used.


There is no practical degradation of ham-band performance, and greatly
enhanced reception when outside the ham bands.


I use mine regularly!


Merry Christmas,


Lyle kK7P







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