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Magnetic Moments - Ian Drummond
#1 Signal attenuation by ground ....... (1) 3
#2 Loop antenna design ....... (2) 6
#3 Signal power from antenna ....... (3) 9
#4 Ferrite antennas ...... (6) 10
#5 The Phase Problem ....... (7) 11
#6 The Transition Zone ...... (8) 13
#7 Electromagnetic Noise - Natural sources of noise ...... (9) 9
#8 Antenna Noise ...... (11) 6
#9 Ground Conductivity by Electro-Magnetic Methods ...... (12) 4
#10 A Probe to Measure RF Magnetic Fields and the Magnetic Moment of a
     Transmitting Loop ....... (20) 8

Thoughts Toward Designing an "International" Cave Radio: Choosing an Operating Frequency
     Frank Reid ....... (2) 11
Organ Cave Radio
     Ray Cole ....... (3) 2
     [Correction] ....... (4) 1
Organ Cave Trip Report
     Ray Cole ........ (3) 3
Some Thoughts on Cave Radio Antenna Design
     Julian Coward ....... (4) 6
High Power on 160-180 kHz?
     Frank Reid ....... (4) 7
Radios Save Caves
     Frank Reid ....... (4) 7
Cave to Surface Communications (reprint)
     Ron Allum ....... (4) 8
Circuit Description, Alberta Speleological Society Cave Radio
     Ian Drummond and Julian Coward ....... (5) 3
Cave Radio M-85
     Bo Lenander, SM5CJW  ....... (7) 8
QRP Transmitting and Receiving on 800-1000 Hz (305,000 meters!) (reprint)
     Rick Wright ....... (7) 13
Partial List of Past and Present Cave Radio Frequencies  ....... (8) 3
British "MOLEFONE" Voice Transceivers Tested at U.S. Cave Rescue Seminar
     Frank Reid ....... (8) 4
Long-Range Cave Radio
     Frank Reid ....... (8) 10
A Cave Radio in the Field -Summer 1987
     Ian Drummond  ....... (9) 7
NSS Bulletin publishes cave radio plans [pub. review]  ....... (10) 2
The Easiest Cave Radio: Extending The Range of Avalanche Beacons (Preliminary Report)
     Frank Reid ....... (10) 13
Hruska's Wheel Antenna
     Joe Hruska ....... (11) 3
The Mendip Rescue Organization (MRO) Antenna
     Brian Prewer ....... (11) 4
ASS Giant Antenna
     Ian Drummond ....... (11) 4
Receiving Cave-Radio Signals with a Whip Antenna
     Ian Drummond  ....... (11) 5
Coil-Winding Machines
     Frank Reid ....... (11) 6
Underwater Cave-Radio Battery Management
     Frank Reid ....... (13) 11
Low-Noise ELF ULF-Range E-Field Preamplifier
     John R. Wright ....... (13) 12
Home-Brew v. Commercial Equipment Test
     Frank Reid and Ian Drummond  ....... (14) 4
The 1967 Ingleborough Field Meet Report: Induction Communication Systems
      in Caves (reprint)
     R.R.Glover ....... (14) 7
Doolin Green Holes from the Surface (reprint)
      [VLF detects saltwater filled cave] ....... (14) 4
Mapping Caves Magnetically (reprint)
     E.R. Roeschlein ....... (15) 4
Update on Induction Cave Radio
     Ron Allum  ....... (15) 14
False Center Found in Unusual Radiolocation
     Frank Reid ....... (15) 15
Measuring Ground Conductivity with a Cave Radio
     Brian Pease W1IR  ....... (16) 4
Earth-Dipole Communication Notes
     Pete Lucas, Frank Reid  ....... (16) 12
BCRA Publishes Easily-Built Cave Radio  ....... (17) 11
Coils: Winding your own [reference]
     Barry Ornitz.  ....... (17) 12
Converting CB Radios for use as Low-Frequency Cave Radios
     Ian Drummond ....... (19) 3
Further Developments with the CB Transverters
     Ian Drummond ....... (19) 9
Update on the CB Transverters for Cave Radio Use
     Ian Drummond ....... (20) 2
Cave Radios and the Law 
     Brian Pease ....... (20) 3
Amateur Radio 160-m Challenge
     Ian Drummond  ....... (20) 7
The D-Q Beacon Receiver
     Brian Pease ....... (21) 10
An Imporved High Power 3496Hz Radiolocation Beacon
     Brian Pease  ....... (24) 5
185 KHz Radiolocation and 7 MHz Communication Experiments
     Bonnie Crystal  ....... (24) 8
Beacon Controller, Cave Radio, Remote, DTMF Programming
     Bonnie Crystal  ....... (24) 9
Thru-The-Earth 2-Way Voice Communication with Cave Divers - Equipment and Test Results
     Brian Pease  ....... (24) 12
Computer Modeling Thru-The-Earth Comminications Antannas
     Brian Pease  ....... (24) 23
80 Meter HF Radio Experiments
     Paul R. Jorgenson  ....... (25) 25
A Radiolocation Devise for Cavers
     Daniel Chailloux  ....... (26) 2
An HF Portable Antenna
     Paul R. Jorgenson  ....... (26) 17
Homebuilt HF Radios for Use Underground
     Paul R. Jorgenson  ....... (26) 19
HF Radio at Grand Canyon Caverns
     Paul R. Jorgenson  ....... (26) 24

Radio Communication in Ape Cave, WA (reprint)
      Wm. Halliday ....... (1) 5
Communications Standard #1.0: 12-volt DC Power
     Gene Harrison ....... (2) 4
Cave Rescue Communications: 
   Linked Systems
   I. Portable Remote-Bases
     T. Whitehurst ....... (3) 6
   The "Ickey Switch" (reprint)
     T. Handel, B. Skaggs  ....... (3) 6
   II. "Handheld" Repeater Links Field Phones' and Radios
     Frank Reid.  ....... (3) 7
The Michie Phone System (reprint)
     Barry Were ....... (4) 13
Phone Patch Connects Cave To Hospitals
     Frank Reid  ....... (7) 17
Cave Rescue Communications Eqpt. Checklist ....... (7) 18
Taking Data Underground (reprint) ....... (9) 2
Radio Information Available  ....... (9) 3
Morse Code Aptitude Test
     Frank Reid, Richard Blenz  ....... (9) 11
Frequencies of Interest: 1988 NSS Convention  ....... (9) 13
More radio modifications  ....... (10) 2
Cave-Rescue communications Security
     Frank Reid  ....... (10) 4
Australian Rescue Uses Cave Radio
     Ron Allum  ....... (12) 2
Summary of the Cave-Rescue Telephone Project
     John Halleck  ....... (12) 10
Field-Expedient VHF Direction-Finder
     John Moore (NJ7E)  ....... (13) 6
CB Radio for Underground Communication (reprint)
     L. Sear, G3PPT ....... (14) 5
Electronics in Action (reprint)  ....... (14) 6
The Wet Noodle Field Phone
     Paul Johnston, KA5FYI  ....... (15) 10
Underwater comm. reference  ....... (16) 8
Phone patch for handheld radios
     Frank Reid  ....... (16) 13
Wet Noodle Passes Field Test
     Paul Johnston ....... (17) 7
1991 Cave-Rescue Communication Notes
     Frank Reid, W9MKV  ....... (17) 11
Instant Cave Phone
     Paul Johnston KA5FYI  ....... (17) 12
TA-1/PT Sound-Powered Telephone Notes
     Frank Reid . . . . . . . . . . . . . . . ..(17) 12
One-wire intercom [reference]
     [Elektor Electronics] . . . . ..(17) 13
Piezoelectric Sound-Powered Telephone
     Frank Reid  ....... (18) 11
Piezoelectric Sound-Powered Phone Improved
     Frank Reid ....... (19) 11
Radio Frequencies of Interest to Cavers (USA) ....... (18) 12
Amplifier Handset Enhances Cave-Rescue Telephone
     Frank Reid ....... (19) 10
Cave-Rescue Communication Notes 1993
     Frank Reid  ....... (20) 14
Radio Crosslink Experiments
     Paul Johnston KA5FYI ....... (21) 2
Resonant Speaker References
     Frank Reid ....... (21) 2
Historic Earth Dipole Communications
     Frank Reid ....... (21) 3
Wideband Portable Antenna
     Danny Britton KB4TEP ....... (21) 20
GMRS and FRS Radio  ....... (22) 20
Cheap Field Telephone
     Paul R. Jorgenson KE7HR ....... (23) 20

Emergency Lightbulb Repair
     Frank Reid & Dwight Hazen  ....... (1) 6
Simple Circuit for Automatic Second Bulb
     Peter Ludwig ....... (4) 3
Nuclear Flashlights!
     Terri Fermi ....... (6) 2
Flashlight Maintenance
     Frank Reid ....... (6) 3
The Firefly Lamp
     Lowell Burkhead ....... (6) 4
Electric Caving Before Lightbulbs or Carbide
     Frank Reid ....... (6) 6
Mine Lamp Charger (reprint)
     Ray Cole ....... (6) 8
Light-Source Launcher
     Kent Jones  ....... (6) 13
Battery Date-Codes
     Stanley F. Quayle ....... (9) 11
The Mini-Maglite(tm): Electrical Tests and Caver Modifications
     Frank Reid ....... (9) 12
Electronic Wristwatch Makes Emergency Flashlight
     Frank Reid ....... (9) 14
Resources: Ultraviolet Lamps for Mineralogy ....... (12) 14
Capacities of Primary Cells [collected reprints]  ....... (12) 9
Lithium cell capacities
     [letter from C. Buttschardt] ....... (13) 1
Piezoelectric Ignition for Carbide Lamps
     John Ganter ....... (13) 3
Calcium Cell (reprint)  ....... (13) back cover
French Electric Mine-Lamp Used in 1869 .......  (15) 9
Charging Sealed Lead-Acid Batteries
     Wm. K. McFadden ....... (15) 13
New Super High-Brightness LEDs
     Jim McConkey ....... (15) 14
Wheat(tm) Lamp Notes  ....... (16) 2
Battery Charger References  ....... (16) 8
Fun Facts (1 kg CaC2 = 3 kWh)  ....... (16) 11
Rejuvenating Sealed Lead-Acid Cells
     John De Armond, WD4OQC  ....... (16) 12
Fluorescent Lights for Caving?
     Ian Drummond  ....... (17) 9
Maglite(tm) Flashlight Field-Repair
     Anmar Mirza, N9ISY  ....... (17) 10
A Peculiar Battery Problem (reprint)
     Bob Sergesketter ....... 17) 10
Alkaline Primary-Cell Failure Mode
     Douglas Strait ....... (18) 2
     (erratum) ....... (19) 1
Incandescent Lamp Parameter Variation with Voltage
     Douglas Strait ....... (18) 2
Switching Voltage-Regulators for Lead-Acid Battery Chargers
     Douglas Strait ....... (18) 3
More on High-Brightness LEDs
     Douglas Strait  ....... (18) 6
Amber LED Notes
     Mel Park ....... (18) 9
A Cheap and Portable Homemade Ultraviolet Lamp
     Phil Okunewick  ....... (18) 10
Characteristics of Bulbs Used in Mini-Maglite(tm) Flashlights
     Douglas Strait ....... (18) 12
Flashlight Surgery
     Duke McMullan  ....... (18) 12
Quartz-Halogen Cave Light
     Anmar Mirza N9ISY  ....... (19) 10
Wheat Lamp(tm) Charger Notes
     Frank Reid  ....... (19) 12
Pulse-Width Modulated Voltage Regulator for Electric Caving Lamps
     William Hunt ....... (20) 9
Repair Your Mini-Mag Flashlights
     Earl Hancock NSS 24125 ....... (21) 6
Foot Candles
     David Gibson ....... (21) 6
Rechargeable Alkaline Cells
     Reno Lippold, N2WAS ....... (21) 7
NiCd Memory Effect Explained
     Joe Hruska ....... (21) 20
        schematic (21) back cover
Update on High Brightness LEDs
     Doug Strait ....... (21) 20
Theory and Designs for Building a White LED Headlamp
     Doug Strait  ....... (22) 3
Light Bulbs for Caving Headlamps in the 21st Century
     John T. M. Lyles  ....... (22) 8
Constructing a Linear Constant Current Dimmer for a White 24-LED Array
     Brian Pease  ....... (22) 11
Simple Current Limiting for LED Flashlights
     Brian Pease  ....... (22) 14
LED Caving Lamp Development and Use
     Pete Shifflett  ....... (22) 21
Not Another LED Headlamp Miracle
     John T. M. Lyles  ....... (22) 24
Creating a Simple Regulated Ni-Cd Cell Charger
     Reno Lippold  ....... (24) 2
Can you Patent an LED Flashlight
     Henry Schneiker  ....... (24) 10
LED Flashlight White Paper
     Henry Schnieker  ....... (24) 16
Automatic Dark Detector Emergency Light
     Paul R. Jorgenson  ....... (24) 21
Princeton Tec Yukon HL Hybrid + Headlamp
     John T. M. Lyles  ....... (25) 15
A Luxeon LED for the Petzl MYO6
     John T. M. Lyles  ....... (25) 20
Lithium 123 Cells with Caving Headlamps
     John T. M. Lyles  ....... (26) 14

Where the Sun Sometimes Shines: Solar Power at a Cave Research Field Station
     Howard A. Hurtt, KB6KSO  ....... (7) 4
Radon Monitoring In Caves
     Steven Clark  ....... (7) 15
Radon Sampling in the Mammoth Cave System
     Wm. Karl Pitts  ....... (7) 16
Cave Air Flow Detection
     Graeme P Pattison ....... (10) 15
Scientific Cave Location (reprint)
     Phil Ingham  ....... (12) 6
I Built an-Ultrasonic Receiver
     Bob Parnass AJ9S ....... (13) 7
Batradio
     Charlie Thompson WB4HVD  ....... (13) 7
Shorter Articles from rec.ham-radio
     [ultrasonics]  ....... (13) 7
Casio Altimeter Wristwatch  ....... (13) 9
Altimeters for Cavers
     Frank Reid ....... (13) 14
Impulse-Radar Technology may yield "Cave Scope"
     Frank Reid ....... (14) 8
Bat Phone [ultrasonic translator]
     Paul Johnston, KA5FYI  ....... (14) 9
More on Altimeters for Cavers
     Kenneth Huffines ....... (14) 10
Casio Altimeter-Watch Notes
     Frank Reid ....... (14) 10
Recording Jam-Jar Magnetometer
     (reprint)  ....... (14) 11
Magnetometer Notes ....... (14) 11
Self-Potential Surveys
     Bruce Bevan  ....... (15) 7
Kartchner Caverns Cave Meteorology System
     Bob Buecher & Dave Dalton  ....... (17) 2
The Use of Data Loggers in Cave Science
     Bob Buecher & Dave Dalton .......  (17) 5
Photoelectric Caver-Counter
     Ian Drummond ....... (17) 8
     (modification)
     Stuart France ....... (19) 1
     (erratum)   .......  (20) 1
Electronic Thermometers Tested at Practice Cave-Rescues
     Frank Reid ....... (17) 11
Water level measurement [reference]
     [Popular Electronics] ....... (17) 13
Ultrasonic anemometer [ref]  .......  (17) 7
Fluxgate magnetometer [ref]  ....... (20) 15
Seismometers [ref]   ....... (20) 15
Water Tracing Experiments in Belize Using an Inexpensive Total Dissolved Solids Meter
     Brian Pease ....... (23) 15
Review of the New Leica Disto
     John T. M. Lyles  ....... (26) 7

How to Make an Ultrasonic Rangefinder
     Bill Mixon  ....... (4) 10
Caving with the Polaroid Ultrasonic Rangefinder
     Frank Reid ....... (4) 10
Inexpensive 2.5 MHz WWV Receiver
     Frank Reid  ....... (4) 11
LED Survey Target from Modified Flashlight Bulb
     Richard Market ....... (5) 10
Loran C for Cavers
     Frank Reid ....... (5) 12
Lighting Up Your Suunto
     Richard Market ....... (6) 14
Decca Navigation System Information
     Frank Reid ....... (8) 3
New LORAN-C Transmitters to Fill Mid-Continent Gap  ....... (9) 2
Will Electronic Compasses "Automate" Cave Mapping?
     Frank Reid ....... (10) 9
Monitoring Magnetic Declination
     (Combined reprints)  ....... (11) 9
The Global Positioning System (GPS)
     D. McClintock  ....... (11) 13
GPS Update ....... (13) 6
The Geomagnetic Storm of 13 March 1989
     (reprint) ....... (13) 11
Recording Jam-Jar Magnetometer
     (reprint).  ....... (14) 11
Radionavigation System Developments
     Rex Buddenberg ....... (14) 12
The Stanley Estimator and Other Miscellaneous Ramblings
     Jim McConkey ....... (16) 3
Rockwell GPS Receiver (reprint) ....... (16) 6
Cavers Get Hands-On Experience with GPS Navigation
     Frank Reid ....... (16) 7
GPS info and resources  ....... (16) 8

The PBR Flash Gun (reprint)
     Bill Baus ....... (8) 9
Sensitive Slave-Flash for Cave Photography (reprint)
     Bo Lenander, SM5CJW  ....... (9) 5
Photos of Luminescent Cave Minerals Wanted   ....... (12) 13
Resources: Ultraviolet Lamps for Mineralogy ....... (12) 14
Cave Camera Explodes! (reprint) ....... (l4) 3
Atomic Strobes and Other Exploding Things
     Paul Johnston, KA5FYI  ....... (15) 3
H2 Catalysis for Sealed Strobes
     John Ganter  ....... (18) 5
Firefly 2 Modification
     Wm Shrewsbury  ....... (22) 7
Remote Cave Cameras
     John T. M. Lyles  ....... (22) 23
Yet another Sensitive Slave for Flash Photography
     Ted Lappin ....... (23) 7
Camera Flash Adapter
     Ted Lappin ....... (23) 10
Salvaging Throw Away Flash Cameras
     Paul R. Jorgenson  ....... (24) 22
A Firefly for Digital Cameras
     John T.M. Lyles  ....... (25) 2

Inventions from Austria  ....... (4) 3
The Unique Self-Climbing Ladder
     Peter Ludwig ....... (4) 4
The Cave Assault Tube
     Steve Duncan & James Honaker. ....... (6) 13
Emergency Watch-Repair for Cavers
     Frank Reid ....... (7) 3
Hunting Dinosaur with Radar
     (reprint)  ....... (8) 15
Recent Developments in Superconductivity Research
     Luther Stroud  .......  (9) 6
Electronic Caver-Detectors
     Frank Reid  ....... (10) 11
Electric Drilling-Hammers for Caving
     Peter Ludwig ....... (11) 10
Experimental Heart Tachometer
     Danny L. Britton KB4TEP  ....... (13) 13
Sound System Aids Recovery of World's Largest Dinosaur (reprint) ....... (l4) 4
Making printed-circuit boards ....... (l4) 13
Electric Caver-Heater Versus Chemical Heat-Packs
     Anmar Mirza N9ISY ....... (19) 10
Build a Simple Bat Detector
     Tony Messina  ....... (22) 16
A Bat Simulator for Testing Bat Detectors
     Paul R. Jorgenson KE7HR  ....... (22) 19
Endless Rope Climbing System with Dynamic Speed Control
     Roy Barton ....... (23) 13
Optimizing Circuits Using Computer Simulation
     Brian Pease ....... (25) 7
Homebrew Earth Resistivity Meter
     John McLean  ....... (26) 9
AC Mains Timed Output Controller
     Paul R. Jorgenson  ....... (26) 13

Electric Caving Before Lightbulbs or Carbide
     Frank Reid ....... (6) 6
Early Radio Experiments in Caves
     Angelo I. George ....... (10) 5
Radio history [pub. review]  ....... (10) 14
Japanese Cave-Radio used in World War II  ....... (12) 15
The 1967 Ingleborouah Field Meet Report: Induction Communication Systems
      in Caves (reprint)
     R.R.Glover  ....... (14) 7
Mapping Caves Magnetically (reprint)
     E.R. Roeschlein ....... (15) 4
Voices from the Past
     Frank Reid  ....... (15) 5
Great Moments in Early Cave Radio Experiments
     Angelo I. George  ....... (15) 6
French Electric Mine-Lamp Used in 1869 ....... (15) 9
Early Advances in Underground Radio Communication
     Angelo I. George ....... (16) 9
Color-Code Mnemonics ....... (20 ) 15

Allum, Ron ....... (4) 2 
Austin, Brian (reprinted Letter to New  Scientist) ....... (11 ) 8 
Babcock. R. G.  ....... (5) 2
Balfour, Herb D. VE3OHH  ....... (10) 15
Barnes, John ....... (15) 2
Bevan, Bruce ....... (15) 3
Buttschardt, Cliff W6HDO  ....... (l3) 1
Carter, Max ....... (9) 4
Charlton, Roy ....... (9) 4
Curl, Rane ....... (5) 1
   Reid, Frank [reply]  ....... (5)
Doria, Gregory ....... (19)
Drummond, Ian ....... (6) 1, (7) 2
France, Stuart ....... (19)
   Drummond, Ian [reply]  ....... (19)
Glover, Dick ....... (6) 1, (7) 2
Hart, Pete ....... (4)
Johnson, David  ....... (8) 2, (11) 2, (12)
Johnson, Ron WA5RON  ....... (l2)
Langford, George ....... (14)
Lenander, Bo ....... (6)
Lindenbrook, Oliver ....... (4) 3
Ludwig, Peter ....... (l0) 3
Mideke, Michael ....... (4) 2, (5) 1
McConkey. Jim ....... (7) 3
McMullan, Duke ....... (11) 2, (18) 1
Mixon, Wm.  ....... (4) 2
Pattison, Graeme ....... (l0) 3
Pease, Brian ....... (6) 1
Reid, Frank ....... (8) 2
Roche. Bernie ....... (13) 1
Savage, James .......  (13) 1
Stroud, Luther ....... (9) 4
Thurman, Chuck WB5KFN ....... (15) 2
Ursin, Dave ....... (12) 3
Were, Barry [2 letters]  ....... (6) 1
Wolford, James [Correction to Organ Cave Radio] ....... (4) 1
WWVB information ....... (7) 3

Cave Communications Bibliography  ....... (2) 9
Bibliography Supplement  ....... (5) 11
A Short Bibliography of Electric Cave Lighting
     Bill Torode  ....... (8) 6
Cave-radio history bibliography [part of article]
     Angelo I. George  ....... (l0) 8
Interesting References (14) 10, (15) 9,(17) 13
Bibliography Supplement
     Bruce Bevan  ....... (15) 8

1985 NSS Conv. Electr. Session  ....... (1) 7
Organ Cave Radio System
     Ray Cole  ....... (1) 7
A Telephone-to-Radio Repeater for Cave Rescue
     Frank Reid  ....... (1) 7
 * From non-cave publications ....... (6) 15, (8) 14, (17) 14
1987 NSS Conv. Electr. Session  ....... (7) 18
Improving The Organ Cave Radio
     Ray Cole  ....... (7) 18
Improvised Telephones for Cave Rescue
     Frank Reid  ....... (7) 18
1988 NSS Conv. Electr. Session  ....... (10) 11
Designs for Voice Cave Radios
     Ray Cole  ....... (10) 11
Factors Influencing Accuracy of Terrestrial LORAN-C Locations
     Bob Hoke  ....... (10) 11
Frequency-Agile Cave Radio Designs
     Frank Reid  ....... (10) 11
1990 NSS Conv. Electr. Session ....... (l5) 6
Error Sensitivity of Cave-Radio Depth Measurement
     F. Reid  ....... (l5) 6
Auto correlation Techniques for Cave Radio
     F. Reid  ....... (l5) 6
1991 NSS Conv. Electr. Session  ....... (16) 2
Batteries for Caving
     Chuck Heller NSS 6618  ....... (16) 2
An Experimental Synchronous Cave Radio
     Brian Pease NSS 7476  ....... (16) 2
Cave Radios and the Law
     Brian Pease NSS 7476  ....... (16) 2
The Right Test Equipment
     Ray Cole NSS 12460  ....... (16) 2
Conductometric Sensor for Atmospheric Carbon Dioxide Determination
     [Analytical Chemistry]  ....... (17) 13
A Chlorine Gas Concentration Monitor
     [Amer Indust Hyg Assn J.]  ....... (17) 13

Leaky Feeders and Subsurface
     Radio Communications [book ad]  ....... (3) 10
The Ogofone
     [BCRA Caves & Caving] ....... (7) 16
NPS Radio Frequencies
     [Popular Communications]  ....... (7) 16
Electronic hypothermia-alarm, Four cave-light articles, South African
      mine radio  ....... (9) 13
NSS Bulletin publishes cave radio plans ....... (10) 2
Leaky-feeder mine radio system, Inductive coupling (medical),
      Ultrasonic tape-measure  ....... (l0) 12
Radio history ....... (10) 14
The Design of Broad-Band VLF Receivers with Air-Core Antennas
     [E. Paschal]  ....... (11) 12
Transmitting Antennas and Ground Systems for 1750 Meters
     [M. Mideke (ed)]  ....... (11) 12
Geophysical Techniques for Sensing Buried Wastes and Waste Migration
     [EPA]  ....... (11) 14
2.3 Megawatt ELF Transmitter
     [Popular Communications]  ....... (11) 14
Earth-Return Telephone for Cave Rescue
     [BCRA]  .......  (11) 14
Bat detector, Field telephones
     [Popular Electronics]  ....... (12) 15
BCRA CREG v.1 no.2 ....... (12) 15
Crystal Oscillator Circuits
     [R.J.Matthys]  ....... (14) 9
James R. Wait Senior Theorist of Cave Radio
     Ian Drummond ....... (14) 8
Whistler Hunter's Guide
     [Mike Mideke]  ....... (16) 8, (17) 13
BCRA Publishes Easily-Built Cave Radio  ....... (17) 11
Annotated Bibl. of Cave Meteorology
     [F. Wefer]  ....... (17) 13
Home Power magazine  ....... (17) 13
Ground Water Monitoring Review mag.  ....... (17) 3
Water level measurement [reference]
     [Popular Electronics]  ....... (17) 13
One-wire intercom [reference]
     [Elektor Electronics1  ....... (17) 13
M. Mideke in "Science Probe"  ....... (17) 13
The Incredible Secret Money Machine II
     [D. Lancaster]  ....... (19) 2
The Electromagnetics Problem Solver ....... (20) 7

Section Formed / Goals
     F. Reid  ....... (1) 1
Standardization
     I. Drummond  ....... (2) 1
Cave Radio Ethics: Artificial Entrances
     F. Reid  ....... (3) 1
Entranceless Caves
     F. Reid  ....... (4) i
Affordable Voice-Communication
     I. Drummond  ....... (5) i
Administrative trivia/Salute to foreign members
     F. Reid  ....... (6) i
Detecting Caves by Conductivity:  Reappraisal
     I. Drummond ....... (8) 1
Just for Fun [powered cave crawlers]
     F. Reid  ....... (9) 1
Survey Accuracy and Cave Radio
     I. Drummond  ....... (11) 1
Speleonics now self-generating
     F. Reid  ....... (12) 1
Guide-wire radio underground
     I. Drummond  ....... (14) 1
Special history issue
     F. Reid  ....... (15) 1
Publishing too slowly
     F. Reid  ....... (19) 1
Good operating procedures
     Ian Drummond ....... (20) 1
Message from the Editor  
     Paul R. Jorgenson ....... (22) 2
Message from the Chairman
     John T. M. Lyles  ....... (22) 25
Message from the Editor  
     Paul R. Jorgenson ....... (23) 2

Resources ....... (6) 11, (7) 14, (9) 11,(10) 10, (11) 7, (12) 14,
      (13) 10,14 (13), (15) 2, (16) 8, (17) 13,(18) 11, (19) 2, (20) 7
Thermoelectric Generator  ....... (6) 12
Piezoelectric Plastic  ....... (6) 12
Molicell(tm) rechargeable lithium cells  ....... (8) 14
Ear Mike ....... (8)14
Autohelm(tm) electronic compass, KVH(tm) electronic compass  ....... (10) 9
Sargent & Greenleaf locks  ....... (l0) 10
Autohelm gets bad review  ....... (11) 1
Digitemp(tm) Battery Tester  ....... (11) 7
Burhans Electronics  ....... (11) 8
Ultrasonic Bat-Detector [BCI]  ....... (11) 8
Mouser Electronics  ....... (11) 8
Portasol(tm) soldering iron / torch ....... (11) 8
Casio Altimeter Wristwatch ....(13) 9
KVH DataScope Electronic Compass  ....... (13) 9
Radio Shack Electronic Car Compass  ....... (13) 9
Visible CW Laser Diodes  ....... (13) 9
Wavebox Frequency Synthesizer  ....... (13) 10
Casio Altimeter-Watch Notes  ....... (14) 10
Geosight (geol. consultants)  ....... (14) 13
New flashlight  ....... (14) 13
Lithium batteries  ....... (14) 13
Air-Aluminum Battery/Fuel-Cell  ....... (14) 13
High-current automotive alternators ....... (14) 14
Sensitive magnetic sensor  ....... (14) 14
New LORAN and GPS receivers  ....... (14) 14
Microwave parts ....... (15) 2
C and H Sales Company  ....... (15) 2
Nite Lite Co ....... (16) 8
Cole-Palmer water-qual. insts ....... (16) 8
Handheld IR sensor
     [Innovative Rsch Gp Inc]  ....... (17) 14
Ikelite Underwater Systems  ....... (18) 8
"Morsum Magnificat" ....... (18) 8
Equipment Review: Leica Disto classic3 Laser Distance Meter  ....... (22) 15
Another Gizmo I Can't Do Without  ....... (22) 20

COVER (J. Jorden)  ....... (1) 0
Better Caving Through Electrical Stuff ....... (1) 1
Slug-Tuned Coil (E. Mideke)  ....... (3) 1
Ricky Resistor (F. Reid) ....... (3) 10
Before Eruptions (P. Tres)  ....... (4) 14
New Plastic Cable-Ties (F. Reid) ....... (5) 13
Electrified carbide lamp (reprint)  ....... (6) 9
MU  ....... (6)15
BAT POWER patch.  ....... (7) 1
BNC ....... (7) 3
Uncle Algie ....... (8) 15
Uncle Caver Wants You (B. Bain) ....... (9) 14
The ultimate cave-rescue vehicle? [cover]  ....... (10) 0
The Atomic Adventure of Dennis Drain (reprint) .......  (11) 13
COVER (Linda Heslop)  ....... (11) 0
There is no Nobel Prize for Speleology [cover photo by H. Pruitt]  ....... (12) 0
Electronic Bat-Feeder [cartoon] artist unknown ....... (12) 14
Art by Jay Jorden ....... (12) 15
ASCII bat  ....... (13) 8
Earth-Air-Fire-Water-Caves  ....... (13) 11
Cavers to the Stars [cover]  ....... (14)
Bat-mobile (Frank Reid)  ....... (14) 13
LaBomba exploding camera
     Paul Johnston ....... (15) 2
Devil with scissors (reprint)
     Jerry D. Fuller ....... (15) 13
Bat gargoyle at Indiana U.  ....... (16) 1
Hams across the water  ....... (18) 10
Giant LED (reprint)
     Dick Vernier N9AWV  ....... (19) 12
Color-Code Mnemonics  ....... (20) 15
Logo (color)  ....... (22) 1
Logos New International (color)  ....... (23) 1

Cavers with Ham Licenses  ....... (1) 2
Grant Received
Section Brochure Available  ....... (4) 12
Wire Size Problems ....... (5) 2
Notice to Hams and Rescuers  ....... (5) 2
NSS Caving Information Series #18 Revised  ....... (5) 2
Notice to Subscribers  ....... (5) 13
Caving publications updated  ....... (6) i
Back issues  ....... (6) i
Cumulative index available  ....... (6) i
Thanks!  ....... (6) i
Help Needed: Recharging Batteries Underground  ....... (6) 7
Cave Light Bibliography Coming  ....... (6) 12
Electronic Compass  ....... .(6) 12
Call for Papers [1987 NSS Conv.] ....... (6) 12
Bring Cave Radios, Video Cams to NSS Conv  ....... (6) 12
Info. Wanted: Cavemobile Electronics  ....... (7) 1
Erratum  ....... (6) 12
Informal Section Meeting at Dayton Hamfest ....... (9) 2
Address Change  ....... (9) 2
Antennas  ....... (9) 2
Section Members Publish  ....... (9) 2
British Forming Cave-Electronics Group (reprint)  ....... (9) 2
Avalanche Beacon Info Wanted  ....... (9) 2
Lightbulb Data Wanted  ....... (9) 2
Computer "Cave Net" Established  ....... (9) 2
New LORAN-C Transmitters to Fill Mid-continent Gap "  ....... (9) 2
Radio information available  ....... (9) 3
Cave radio featured in Canadian video ....... (10) 1
Cavers' computer mailing list gets new manager  ....... (10) 1
NSS Bulletin publishes cave radio plans  ....... (10) 1
More radio modifications  ....... (10) 2
New Low-Frequency Newsletter  ....... (10) 15
First BCRA Electronics Newsletter ....... (11) 1
Biologists to use cave radio  ....... (11) 1
Autohelm(tm) compass gets bad review  ....... (11) 1
New Wind Cave map corrected for radio survey  ....... (11) 1
Cave radio at Jewel Cave expedition  .......  (11) 2
Informal Spring Meetings  ....... (12) 1
Regular publisher unavailable  ....... (12) 1
"Radio Pit" opened ....... (12) 3
Cave rescue on network TV  ....... (12) 3
Super LEDs to be available at NSS Convention  ....... (12) 3
Call for papers  ....... (12) 3
Complex Communications Scenario at NCRC ....... (13) 2
Cavers on Video ....... (13) 8
Third annual meeting at Dayton  ....... (14) 2
FAX now available  ....... (14) 2
LF/VLF BBS  ....... (14) 2
1990 NSS Conv./call for papers  ....... (14) 2
Australian cave-diving video  ....... (14) 2
$2500 reward for 2-way voice cave-radios!  ....... (15) 1
FCC now claims 9kHz  ....... (15) 1
Erratum (issue # 15)  ....... (16) 1
(former) Soviet cavers join section ....... (17) 1
BCRA Cave Radio & Electronics Group ....... (17) 10, (19) 2
Dayton 1992 meeting announcement  ....... (17) 1
1992 NSS conv. mtg. announcement  ....... (17) 1
Tunnel Detection Symposium  ....... (18) 1
Caver CB and ham frequencies proposed ....... (19) 2
1994 NSS Conv./call for papers ....... (20) 1
Dayton meeting 1994  ....... (20) 5
1997 NSS Convention Call for papers ....... (21) 1
1997 Annual Cavers meeting at Dayton Hamvention ....... (21) 1

Premiere Issue ....... (1) 1
Report on Cave Communication and Electronics Section Meeting
      at Frankfort, KY June 24. 1985
     Julian Coward ....... (2) 2
Cave Communication Questionnaire
     Ian Drummond  ....... (2) 13
Membership List ....... (4) 12
Welcome New Members  ....... (5) 10
1986 NSS Conv. Electr. Session Report
     F. Reid  ....... (5) 10
1987 NSS Conv. Electr. Session Report
     F. Reid ....... (8) 1
Production irregularities  ....... (10) 1
Members meet at Dayton Hamvention  ....... (10) 2
Reproduction of SPELEONICS articles  ....... (10) 2
Subscription cost held constant  ....... (10) 2
Section logo revised  ....... (10) 2
1988 NSS Convention report  ....... (11) 1
1989 NSS Convention Report  ....... (13) 2
1989 Dayton Hamvention meeting report  ....... (13) 2
1990 Dayton meeting report  ....... (15) 1
1990 NSS Convention Report  ....... (15) 6
Dues increase  ....... (16) 1
SPELEONICS is alive and well  ....... (17) 1
1993 NSS convention report  ....... (20) 6
Speleotardiness ....... (21) 1
Section Officers  ....... (22) 1
Minutes of the 2001 Communications and Electronics Section Meeting  ....... (22) 25
Constitution ....... (23) 3
Bylaws ....... (23) 4
Section Officers 2002 ....... (23) 6
Minutes of the 2002 Annual Meeting ....... (23) 21
Minutes of the 2003 Annual Meeting ....... (24) 4
Minutes of the 2004 Annual Meeting ....... (25) 4