This is the original ask:
"What if we take it a step further, could we limit the band-with of the antenna
signal with a crystal lattice for 160 meters before the receiver.
Years ago I played around with a single crystal at the input of an old tube
type receiver. It was remarkable what I could
Rudy,
Using topband archives. Try going back to the beginninmg of the
emails. It started with "thinking out loud", subject then someone
changed the subject.
73' Bruce-k1fz
On Sat, 24 Dec 2016 08:46:47 -0500, Rudy Bakalov via Topband wrote:
So what problem are we trying to
So what problem are we trying to solve here?
If we are solving for SNR, IMHO, good RX antennas provide the best bang for the
buck. Today's RX antennas are built on sound engineering principles, have
measurable performance, and offer operating flexibility a crystal front-end
can't.
If we are
<rfsa...@freng.com>
Sent: Saturday, December 24, 2016 7:48 AM
Subject: Topband: Front End Filters
The one they are developing for marketing 'can' have 1 KHZ segment
crystals channels..
I would encourage anyone to insert a single crystal in their receiver
antenna input to see th
The one they are developing for marketing 'can' have 1 KHZ segment
crystals channels..
I would encourage anyone to insert a single crystal in their receiver
antenna input to see the
difference before considering a purchase. (Careful not to transmit
into the experiement)
40 meters is a
About 15 years ago I built a switchable front end crystal filter, I was
going to market it but it was too expensive for the Ham market. It covers
1800 to 1850 in 5kHz segments with a slight overlap so that there are no
gaps, each section is a half lattice, the insertion loss is about 6dB but
that
