= = = dxAce wrote in message
= = = ...
RHF wrote:

CF,

Thank You - For the Link to "Fabricating Impedance {Matching}
Transformers for Receiving Antennas" - by John Bryant - May 2001
http://members.aol.com/DXerCapeCod/z_transformers.pdf

Here's another:

http://www.dxing.info/equipment/impe...ing_bryant.pdf

Both posted here, many, many times.

dxAce
Michigan
USA
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DX ACE,

Thank You Too - For the Link to "Impedance Matching Transformers
for Receiving Antennas at Medium and Lower Shortwave Bands"
- by Bill Bowers & John Bryant & Nick Hall-Patch - July 2003
http://www.dxing.info/equipment/impe...ing_bryant.pdf

More Good Reading all 26 Pages of it.

Again this was something Worth Printing Out for Future Reference.

Got the Spread Sheets done for these Ferrite Cores:

Amidon Binocular Ferrite Core # BN-43-202
- Lowest Frequency 500 kHz
- Primary 15 Turns x Two Holes = 30T
- Secondary 5 Turns x Two Holes = 10T
- Matching Transformer Ratio 9:1

Amidon Toroid "Donut" Ferrite Core # BN-82-43
- Lowest Frequency 500 kHz
- Primary 32 Turns
- Secondary 11 Turns
- Matching Transformer Ratio 9:1

Amidon Toroid "Donut" Ferrite Core # BN-50-43
- Lowest Frequency 500 kHz
- Primary 33 Turns
- Secondary 11 Turns
- Matching Transformer Ratio 9:1

Amidon Toroid "Donut" Ferrite Core # BN-114-43
- Lowest Frequency 500 kHz
- Primary 31 Turns
- Secondary 11 Turns
- Matching Transformer Ratio 9:1


I AM GETTING AN "IDEA" )

Run a 75 Foot Inverted "L" Antenna using Landscaping Lighting Cable
(Heavy Duty Zip Cord). Making the two 'separate' Antenna Elements
two "Parallel" Multi-Stranded Insulated Wires:

For the Shortwave Bands - Hook-Up the 1ST Wire to a Matching
Transformer made with a Amidon Toroid "Donut" Ferrite Core
BN-114-43 using #20 AWG Magnet Wi
- Lowest Frequency 1800 kHz
- Primary 17 Turns
- Secondary 6 Turns
- Matching Transformer Ratio 9:1
Separate Coax Cable Feed-in-Line

For the Long Wave and AM/MW Bands - Hook-Up the 2ND Wire to a
Matching Transformer made with a Amidon Toroid "Donut" Ferrite
Core BN-114-75 using 100 Strand #44 AWG 'Litz' Wi
- Lowest Frequency 150 kHz
- Primary 25 Turns
- Secondary 8 Turns
- Matching Transformer Ratio 9:1
Separate Coax Cable Feed-in-Line

Test them Side-by-Side for both Shortwave and LW/AM/MW performance.

iane ~ RHF
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