line4

Chapter 12

12-3. Join a Ham Club

https://www.youtube.com/watch?v=rYpPhZ8oA9g

12-4. Communications Means

a. Telephone

http://signalcenter.com

https://www.youtube.com/watch?time_continue=11&v=8JgYvSFseNQ

http://www.associated-ind.com/field_products_ta312a.htm

http://www.pcliquidations.com/p11934-toshiba-strata-cix40-basic?utm_source=google&utm_medium=cse&utm_term=11934&r160164167166161&gclid=CK7o16aBz8gCFdcZgQod7NMKbQ

b. Private Branch Exchange

http://www.artscipub.com/repeaters

http://mynasadata.larc.nasa.gov/science-processes/electromagnetic-diagram

http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf

d. HF Radio

https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHBD_enUS686US686&ion=1&espv=2&ie=UTF-8#q=hf+radio+images

e. VHF Radio

https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHBD_enUS686US686&ion=1&espv=2&ie=UTF-8#q=vhf+radio+images

f. UHF Radio

https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHBD_enUS686US686&ion=1&espv=2&ie=UTF-8#q=uhf+radio+images

g. VHF and UHF Repeaters

https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHBD_enUS686US686&ion=1&espv=2&ie=UTF-8#q=vhf+repeater+images

j. Satellite Telephone

1. Iridium

https://www.iridium.com

https://www.youtube.com/watch?v=1PFUP5LPyuA

http://www.skyandtelescope.com/observing/celestial-objects-to-watch/observing-iridium-flares

2. Global Star

http://www.globalstar.com/en

3. Light Squared

http://www.lightsquared.com

4. INMARSAT

http://www.inmarsat.com

12-7. Means Selection

http://emergencyplanguide.org/reviews/emergency-radio-reviews

http://crank-radio-review.toptenreviews.com

http://www.consumersearch.com/weather-radios/best-emergency-radios

12-8. Antenna Theory, Polarization, and Wavelength

Spectrum Chart

http://www.ntia.doc.gov/files/ntia/publications/spectrum_wall_chart_aug2011.pdf

Frequency vs. Wavelength Table

http://www.hamuniverse.com/hfbandplan.html

12-9. Radio Wave Propagation

Frequency Chart

http://www.ntia.doc.gov/files/ntia/publications/spectrum_wall_chart_aug2011.pdf

Antenna Polarization

https://www.google.com/search?q=antenna+polarization&rlz=1C1CHBD_enUS686US686&espv=2&biw=1920&bih=971&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiOtba9s7TMAhXCMj4KHadxC3UQsAQIGw

Ionosphere

http://www.radio-electronics.com/info/propagation/ionospheric/ionosphere.php

http://hilltoparmyradios.com/usmc-radio-ops-hdbk.pdf

http://www.daenotes.com/electronics/microwave-radar/atmosphere-ionosphere-stratosphere-troposphere

http://www.radio-electronics.com/info/propagation/ionospheric/hf-propagation-basics.php

http://apollo.lsc.vsc.edu/classes/met130/notes/chapter1/ion2.html

http://ecjones.org/physics.html

Variation in Ionization

http://www.universetoday.com/103803/solar-cycle-24-on-track-to-be-the-weakest-in-100-years

Skip Distance vs. Skip Zone

http://www.tpub.com/neets/book10/40f.htm

http://www.learn-about-electronics.com/skip-distance.html

Impedance Matching

http://www.hamuniverse.com/ohmslaw.html

12-11. Dipole Antennas

Why Dipole?

http://www.hamuniverse.com/hfdoublet.html

Antenna Tuner

https://www.bing.com/images/search?q=antenna+tuners+ham+radio&qpvt=antenna+tuners+ham+radio&qpvt=antenna+tuners+ham+radio&FORM=IGRE

Feedline

https://www.bing.com/images/search?q=coax+images&qpvt=coax+images&qpvt=coax+images&FORM=IGRE

https://www.bing.com/images/search?q=ladder+line+wire&id=A4216FAAC82D11DEFD914A648502D84DC3BF9D2B&FORM=IQFRBA

http://www.arrl.org/feed-lines

http://forums.qrz.com/index.php?threads/ladder-line-vs-coax-tuners-balanced-t-auto.155268

Insulators

https://www.bing.com/images/search?q=antenna+insulators+ham+radio&qpvt=antenna+insulators+ham+radio&qpvt=antenna+insulators+ham+radio&FORM=IGRE

Dipole Antenna Configurations

http://www.arrl.org/files/file/Technology/tis/info/pdf/9106023.pdf

https://www.bing.com/videos/search?q=how+to+make+a+dipole+antenna&qpvt=how+to+make+a+dipole+antenna&FORM=VQFRML

http://www.hamuniverse.com/dipivcal.html

Radiation Patterns

http://www.hamuniverse.com/wb4yjtdipolepatterns.html

http://lib.store.yahoo.net/lib/buddipole/configurations2008.pdf

NVIS Antenna

http://www.hamuniverse.com/nvisbeam.html

http://www.hi-q-militaryantennas.com/nvis-hfcombo.html

http://www.arrl.org/nvis

http://ac6v.com/antprojects.htm

http://www.radio-electronics.com/info/antennas/dipole/dipole.php

http://www.hamuniverse.com/dipoleantenna.html

http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/rstiv.html

http://www.eham.net/ehamforum/smf/index.php/topic,69646.0.html

http://metals.about.com/od/properties/a/Electrical-Conductivity-In-Metals.htm

http://electronicdesign.com/communications/back-basics-impedance-matching-part-1

http://www.physlink.com/Education/AskExperts/ae517.cfm

12-12. End Effect and Antenna Length Formula

http://forum.allaboutcircuits.com/threads/end-effect-in-antennas.40857

http://www.qsl.net/kd4sai/antencal.html

12-13. Standing Wave Ratio

http://www.arrl.org/files/file/Technology/tis/info/pdf/q1106037.pdf

https://www.bing.com/videos/search?q=how+to+build+a+cb+antenna&FORM=VIRE10#view=detail&mid=EF6AA121F272472C9E95EF6AA121F272472C9E95

https://www.youtube.com/watch?v=6Dh2u8CaS7I

12-14 Antenna Safety

http://www.hamuniverse.com/antennasafety.html

http://www.universal-radio.com/catalog/wideant/safewide.html

https://www.fcc.gov/engineering-technology/electromagnetic-compatibility-division/radio-frequency-safety/faq/rf-safety#block-menu-block-4

12-15. HF Radio Networks

https://www.youtube.com/watch?v=rYpPhZ8oA9g

http://graywolfsurvival.com/2716/ham-radio-best-shtfdisaster-communication

https://www.youtube.com/watch?v=7UysFwypRZc

https://radiofreeq.wordpress.com/2013/06/29/shtf-survivalist-radio-frequency-list

12-16. Communications Security

https://www.youtube.com/watch?v=1qHyIiSK7Lo

https://www.youtube.com/watch?v=mLR9yFiYCCE

http://www.dxzone.com/catalog/Operating_Modes/Radio_Direction_Finding

http://www.homingin.com/index.html

12-17 Clandestine Communications

https://grugq.github.io/resources/tradecraft-howto.pdf

http://www.converge.org.nz/abc/spycraft.htm

http://www.dtic.mil/dtic/tr/fulltext/u2/a401364.pdf