Shortwave Radio
This site is a collection point for information, construction techniques, theory, and enjoyment of Shortwave Listening.
Site Map
=================
My Listening Post 1 2
NEW: RFP Parametric
preconditioner
R&D: 1 2 3 4
L@@k Photos 1 2 3
Active and Proximate
Antenna Tests
AM Broadcast Directory
Updated for 2010 !!!
Receiver Reviews
BEST Radios
IC-R75 UPGRADED
IC-R71A Mods
PREVIEW: ACP-1
Audio Control Panel
NEW - Surveillance
Receiver with
Audio Console
PRESELECTION
Design Notes NEW
Preselectors
Basics
Theory
Filters
Design
Type-3 (Theory)
Type-3 (Construction)
Type-4
Type-5
Type-6 NEW
Published Article
Early R&D
Modular Design Approach
Component Parts Sources
=====================
PRECONDITIONING
Complete BCB Preconditioner
A Dynamic Noise Blanker
* * * REVISED 12-07 * * *
A Dynamic Noise Phaser
* * * REVISED 12-07 * * *
Antenna Switcher
with Imp Match & Gain
=====================
BUILD A BCB
RADIO
SR-III Hot-Rod
(or go to:)
Concept Panel Designs NEW
Ant Rod Freq Counter
Panel Layout Panel Machining
Audio Mods Meters Pre-Circuit
Schematic Collection
RCA-HISTORY (re: SR-3)
=====================
MISC SWL FUN
KENWOOD TH-F6A mods
MFJ-965 Soup-up
AM DX Automobile Antennas
North Country Active Antenna
(my review)
All-Band SWL Antenna
(that really works)
Receive Matching Transformer
A 9:1 Balun
(for your end fed ant)
Yaesu FRG Mods
Balun Grounding
(important)
Wire Antenna Rigging
(the easy way)
Home brew Super Insulators
AM Box Loop
(that works good)
The Old Days
WPE Certificates
SONY Tabletops
Clear Channel AM BCB List
TSCM (Bond...James Bond)
IBOC Woes
* * * MERCHANDISE * * *
---Code Book
---AM BC Log CD
Balun: 9:1 SWL & QRP
4-Way Antenna
Multicoupler
=================
My Listening Post 1 2
NEW: RFP Parametric
preconditioner
R&D: 1 2 3 4
L@@k Photos 1 2 3
Active and Proximate
Antenna Tests
AM Broadcast Directory
Updated for 2010 !!!
Receiver Reviews
BEST Radios
IC-R75 UPGRADED
IC-R71A Mods
PREVIEW: ACP-1
Audio Control Panel
NEW - Surveillance
Receiver with
Audio Console
PRESELECTION
Design Notes NEW
Preselectors
Basics
Theory
Filters
Design
Type-3 (Theory)
Type-3 (Construction)
Type-4
Type-5
Type-6 NEW
Published Article
Early R&D
Modular Design Approach
Component Parts Sources
=====================
PRECONDITIONING
Complete BCB Preconditioner
A Dynamic Noise Blanker
* * * REVISED 12-07 * * *
A Dynamic Noise Phaser
* * * REVISED 12-07 * * *
Antenna Switcher
with Imp Match & Gain
=====================
BUILD A BCB
RADIO
SR-III Hot-Rod
(or go to:)
Concept Panel Designs NEW
Ant Rod Freq Counter
Panel Layout Panel Machining
Audio Mods Meters Pre-Circuit
Schematic Collection
RCA-HISTORY (re: SR-3)
=====================
MISC SWL FUN
KENWOOD TH-F6A mods
MFJ-965 Soup-up
AM DX Automobile Antennas
North Country Active Antenna
(my review)
All-Band SWL Antenna
(that really works)
Receive Matching Transformer
A 9:1 Balun
(for your end fed ant)
Yaesu FRG Mods
Balun Grounding
(important)
Wire Antenna Rigging
(the easy way)
Home brew Super Insulators
AM Box Loop
(that works good)
The Old Days
WPE Certificates
SONY Tabletops
Clear Channel AM BCB List
TSCM (Bond...James Bond)
IBOC Woes
* * * MERCHANDISE * * *
---Code Book
---AM BC Log CD
Balun: 9:1 SWL & QRP
4-Way Antenna
Multicoupler
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resale, (c) Robert W. Betts.
resale, (c) Robert W. Betts.
<-----NOT MANY LEFT!!!
So all it takes is some cash, a few electronic parts,
basic tools, lots of thought, and a tremendous
amount of understanding from whoever is your
physical, moral, emotional, and intellectual
custodian, keeper, master, boss, and/or supervisor.
Mine is all that, and she also cooks, does the
laundry, and cleans the house - especially the rooms
I don't often use ... and she actually allows some of
this stuff in the family room!
I'm truly blessed!
basic tools, lots of thought, and a tremendous
amount of understanding from whoever is your
physical, moral, emotional, and intellectual
custodian, keeper, master, boss, and/or supervisor.
Mine is all that, and she also cooks, does the
laundry, and cleans the house - especially the rooms
I don't often use ... and she actually allows some of
this stuff in the family room!
I'm truly blessed!
<-----600+ pages ! UPDATED for 2010!!!
<-----Available spring 2010, depending on demand
<-----Several prototypes leftover from an agency contract
For Sale Limited quantity stuff - all very limited
| Buy SWL Stuff, Below |
A good receiver, decent antenna(s), and an effective preselector. What more could an SWLer ask for? Well, there's always something MORE that we could use ... right?
I hope you enjoy this site. In time it's going to get fairly large - maybe there will be something that you can take from here to enhance the enjoyment of this hobby. - Bob, N1KPR
Added 2-9-10 --
The Baluns and Multicouplers will not be available until April or May 2010.
This is due to the delay of some parts availability.
I will announce, here, if that schedule improves.
Thanks for understanding.
The Baluns and Multicouplers will not be available until April or May 2010.
This is due to the delay of some parts availability.
I will announce, here, if that schedule improves.
Thanks for understanding.
