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Carol F. Milazzo
Works at Amateur Radio Station KP4MD
Attended University of Puerto Rico School of Medicine, San Juan, PR
Lives in Citrus Heights, CA
1,327 followers|8,261,984 views
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Carol F. Milazzo

Digital Modes  - 
 
 
Making contacts on HF WSPR from my portable station KP4MD/P here in Carolina, Puerto Rico.
Radio: Elecraft KX3 Power 5 watts
Antenna: Balcony mounted magnetic loop antenna
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Carol F. Milazzo

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Making contacts on HF WSPR from my portable station KP4MD/P here in Carolina, Puerto Rico.
Radio: Elecraft KX3 Power 5 watts
Antenna: Balcony mounted magnetic loop antenna
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Vacationing? Nice contacts!
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Carol F. Milazzo

Field Experience  - 
 
 
Last night I built this coaxial crossover switch with four BNC jacks and a DPDT toggle switch in an Altoids tin. This will be used for comparing a Chameleon CHA-F magnetic loop antenna with a Buddistick loaded monopole antenna at our KP4MD/P operation commencing 29 June
http://www.qrz.com/db/kp4md/p #HamRadio  
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2016 River City ARCS Field Day on Good Day Sacramento
https://www.youtube.com/watch?v=-m6ZhTaTGrw&list=PL-lx3fGDwopjxsNLiFlJaog35vcgEOyqW #ARRLFD  
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Carol F. Milazzo

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2016 River City ARCS Field Day on Good Day Sacramento
https://www.youtube.com/watch?v=-m6ZhTaTGrw&list=PL-lx3fGDwopjxsNLiFlJaog35vcgEOyqW #ARRLFD  
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Carol F. Milazzo

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River City ARCS Field Day Captain Andy Stephens W6AWS explains an amateur radio operating position to journalist Nha Nguyen from TV Channel 31 Good Day Sacramento.
https://plus.google.com/u/0/photos/114457533000757442881/albums/6300377201723407457 #ARRLFD  
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Carol F. Milazzo

Tips and Recommendations  - 
 
Professional construction - toroid coupled magnetic loop antenna.
I have also built this successfully with an FT140-43 core. The larger core provides equally tight coupling to the loop, greater power capacity and permits an easier fit on the loop.
 
The feed point of the MLA.
Idea from Dr Carol F. Milazzo, KP4MD and G4FON.
More detailed information is the site of Dr Carol F. Milazzo KP4MD.
http://www.qsl.net/kp4md/magloophf.htm

In my case:
Copper : diameter 1mm.7 turns
Coupling section rotatable.Plug it into the Selfie stick.

Key point // from KP4MD
“Spreading the coil turns over the full circumference of the core improves coupling efficiency, antenna Q and radiated field strength.”
Mine is a narrow space. Not good but works fine.

From web site info.
6. A wide-spaced 10-turn coil of 14 AWG solid copper wire was wound on an FT114-43 ferrite toroid core threaded over the loop wire (a 112 inch length of Alpha Wire 9219A RG-8A/U coaxial cable terminated in PL-259 connectors).  Taps would later be soldered on the 6th and 8th turns after mounting in the coupling enclosure.  Spreading the coil turns over the full circumference of the core improves coupling efficiency, antenna Q and radiated field strength.


G4FON
http://www.g4fon.net/MagLoopTwo.htm
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Randy Cummings's profile photoCarol F. Milazzo's profile photo
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+Randy Cummings The ferrite toroid is an alternative coupling method for magnetic loop antennas. When made variable like this one, it can provide a better impedance match over a wide frequency range than a small fixed coupling loop. Doerenberg, N4SPP also wrote about it here: http://www.nonstopsystems.com/radio/frank_radio_antenna_magloop.htm#coupling-ferrite
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Making contacts on HF WSPR from my portable station KP4MD/P here in Carolina, Puerto Rico.
Radio: Elecraft KX3 Power 5 watts
Antenna: Balcony mounted magnetic loop antenna
1 comment on original post
2
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good work ... 73 from ATHENS
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Last night I built this coaxial crossover switch with four BNC jacks and a DPDT toggle switch in an Altoids tin. This will be used for comparing a Chameleon CHA-F magnetic loop antenna with a Buddistick loaded monopole antenna at our KP4MD/P operation commencing 29 June
http://www.qrz.com/db/kp4md/p #HamRadio  
4 comments on original post
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Good job!
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Carol F. Milazzo

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Last night I built this coaxial crossover switch with four BNC jacks and a DPDT toggle switch in an Altoids tin. This will be used for comparing a Chameleon CHA-F magnetic loop antenna with a Buddistick loaded monopole antenna at our KP4MD/P operation commencing 29 June
http://www.qrz.com/db/kp4md/p #HamRadio  
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River City ARCS Field Day Captain Andy Stephens W6AWS explains an amateur radio operating position to journalist Nha Nguyen from TV Channel 31 Good Day Sacramento. #ARRLFD  
 
River City ARCS Field Day Captain Andy Stephens W6AWS explains an amateur radio operating position to journalist Nha Nguyen from TV Channel 31 Good Day Sacramento.
https://plus.google.com/u/0/photos/114457533000757442881/albums/6300377201723407457 #ARRLFD  
2 comments on original post
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Good that we got some coverage, but very sad they think we are CBers. 
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Carol F. Milazzo

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Bob Woodward, N6PGQ, Chief of Operations at K6VAH at the Sacramento, California VA Medical Center at Mather, CA shares these photos taken today of the K6VAH antennas atop the VA Administration building with a solar halo in the background. https://www.qrz.com/db/K6VAH
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Have her in circles
1,327 people
Omoregbe Williams's profile photo
Re Lallo's profile photo
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Dave Voice of NH's profile photo
Robert Grenier's profile photo
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Communities
28 communities
Education
  • University of Puerto Rico School of Medicine, San Juan, PR
    Medicine
  • Fordham University, Bronx NY
    Biology
  • Regis High School, New York, NY
  • Coindre Hall, Huntington, NY
  • Sacred Heart Private School, Bronx, NY
Basic Information
Gender
Female
Story
Tagline
Amateur Radio Station KP4MD
Introduction

Amateur Radio Station KP4MD 
Member ARRL YLRL MARCO 
River City Amateur Radio Communications Society, Sacramento

Interests in Antenna Modeling, Propagation, Radiotelegraphy, Software Defined Radio, Digital Communication

Astronomy, History, Languages, Music, Amateur Pianist 

Pediatrician

Bragging rights
I am blessed with a loving husband, children and grandchildren!
Work
Occupation
Pediatrician
Employment
  • Amateur Radio Station KP4MD
    present
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Citrus Heights, CA
Previously
Omaha, NE - San Juan, PR - Bronx, NY