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ANTENNA TOOLKIT
Preface vii 1. Radio signals on the move 1 2. Antenna basics 19 3. Wire, connection, grounds, and all that 49 4. Marconi and other unbalanced antennas 69 AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withN5DUX
N5DUX
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10n PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX HAM RADIO PDFS Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. ItANTENNA TOOLKIT
Preface vii 1. Radio signals on the move 1 2. Antenna basics 19 3. Wire, connection, grounds, and all that 49 4. Marconi and other unbalanced antennas 69 AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withN5DUX
N5DUX
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10n PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. ItANTENNA TOOLKIT
Preface vii 1. Radio signals on the move 1 2. Antenna basics 19 3. Wire, connection, grounds, and all that 49 4. Marconi and other unbalanced antennas 69 BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
THE ARROW ANTENNA
The Arrow An Hit the bull's-eye with this pon'able VHF sharp shooter. by Mike Walker KA0VFF and Al Lowe NBIMW M ow would you out the Peneetor ele- Iike a com- ment, md the geoond pletely portable, 4- director element at element 2 meter an. I " fm theend of the tenna that fits into its boom. Mount dl ele- own I" x In x 48" men& in thecenter of
SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much asN5DUX
N5DUX
THE 220 MHZ ALL-MODE TRANSVERTER Number 8 on your Feedback card THE 220 MHz ALL-MODE Designed for the dedicated home-brewer. by Robert E. Bloom W6YUY B ecause of the increased interest and activity in 220 MHz single sideband and the positive response to my Two-Meter M8 TRANSISTOR TESTER VER.12864 INSTALLATION INSTRUCTION Cut off the power, and connect M328 and the LCD which is welded with the insert pin(8Pin, 5-12). Be aware of the direction of IC. After all the installation, connect the power(9V 6F22 battery,or GIVE YOUR SIGNAL EXTRA PUNCH ON AMATEUR RADIO'S MAGIC BAND Give your signal extra punch on amateur radio's "magic band" with this compact three-element beam for 6 meters. e Feather-\rxeigl~t is an ultra-light VHF Yagi that goes where heavier BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withN5DUX
N5DUX
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10n ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much asTHE G0KYA EFHW
The G0KYA EFHW – an end-fed half wave monoband HF antenna, plus two multiband versions (New!) A practical, cheap monoband or multiband (new!) vertical antenna that LECTURE 6: PARALLEL RESONANCE AND QUALITY FACTOR. TRANSMIT Whites, EE 322 Lecture 6 Page 2 of 10 L C R I V +-For this parallel RLC circuit 0 resistance p reactance Q ω = which is the inverse of Qs. Following the analysis in the text (Section 3.7), we find that the BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withN5DUX
N5DUX
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10n ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much asTHE G0KYA EFHW
The G0KYA EFHW – an end-fed half wave monoband HF antenna, plus two multiband versions (New!) A practical, cheap monoband or multiband (new!) vertical antenna that LECTURE 6: PARALLEL RESONANCE AND QUALITY FACTOR. TRANSMIT Whites, EE 322 Lecture 6 Page 2 of 10 L C R I V +-For this parallel RLC circuit 0 resistance p reactance Q ω = which is the inverse of Qs. Following the analysis in the text (Section 3.7), we find that the PRACTICAL ANTENNA DESIGN 5 table of contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 introduction.. groundplane antenna model fa -2.. AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me with PHASE LOCK LOOP STABILITY ANALYSIS , r\ deltad.1 (top curve) 10 to 0.9 (bottom cum) -5 .lo 1 .15 natural 1 frequency LO 0 10 20 30 40 50 60 70 80 90 100 A Figure 7.Closed loop gain response vs. frequency for dif- N5DUX APRS PASSCODE GENERATOR This webform will generate a passcode based on your callsign for use with the APRS network. A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much asTHE ARROW ANTENNA
The Arrow An Hit the bull's-eye with this pon'able VHF sharp shooter. by Mike Walker KA0VFF and Al Lowe NBIMW M ow would you out the Peneetor ele- Iike a com- ment, md the geoond pletely portable, 4- director element at element 2 meter an. I " fm theend of the tenna that fits into its boom. Mount dl ele- own I" x In x 48" men& in thecenter of
A SIMPLE TECHNICAL LOOK AT AN HF HORIZONTAL LOOP OF Hence, my loop still radiates efficiently, only in slightly different directions, despite the nearby metal objects. The EZNEC Model . To simulate my all-wood house, I used just the loop (red line) of Figure2.
LECTURE 1: OVERVIEW. NORCAL 40A. DIRECT CONVERSION VS Whites, EE 322 Lecture 1 Page 2 of 10 A block diagram of the NorCal 40A is shown in Fig. 1.13. The transmitter is on the left half, the receiver on the right.N5DUX
N5DUX
REPAIR 16 BIRD WA
ion and Repair Number 16 on your Feedback card Bird Wa Follow these simple, easy steps-and save big money! by Francis Kelson HLSBKIK2KSY S ome time ago, I received some burned out and well-used Bird and Sierra wattmeter elements. As I looked over the elements, I N5DUX HAM RADIO PDFS Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10nN5DUX
N5DUX
PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX HAM RADIO PDFS Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10nN5DUX
N5DUX
PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX
N5DUX's Amateur Radio projects, tools, and related articles. N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It PRACTICAL ANTENNA DESIGN 5 table of contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 introduction.. groundplane antenna model fa -2.. AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withSCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
N5DUX
N5DUX
A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much as A SIMPLE TECHNICAL LOOK AT AN HF HORIZONTAL LOOP OF Hence, my loop still radiates efficiently, only in slightly different directions, despite the nearby metal objects. The EZNEC Model . To simulate my all-wood house, I used just the loop (red line) of Figure2.
HERE'S AN EASY-TO-BUILD DESIGN BY GM4PLM USING LOW-COST Here's an easy-to-build design by GM4PLM using low-cost, readily built ATV modules. By Simon Lewis," GM4PLM mateur Fast Scan television has I-\'\, been a part of the hobby that has fl-h fascinated me since my early days in amateur radio. DIRECT CONVERSION RECEIVERS—SOME AMATEUR RADIO HISTORY Direct Conversion Receivers—Some Amateur Radio History Wes Hayward, W7ZOI October 20, 2018 .(Appendix added, March 22, 2019.) Definition — Direct Conversion: A type of radio receiver wherein a signal is applied to a mixer and is converted directly to a baseband, typicallyaudio. There is
N5DUX HAM RADIO PDFS Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10nN5DUX
N5DUX
PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX HAM RADIO PDFS Ham radio PDF repository curated by N5DUX. All amateur radio-related projects, tips, tricks, and tools N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It BUILD THE FOXTTL FOXHUNT TRANSMITTER Build the FoxlTL Foxhunt Transmitter Simple, inexpensive, and the end of your excuses for not trying T-hunting. Dave Pelaez AH2ARlE 4872Trailside Courl
ALL ABOUT : CMOS CLOCK CIRCUITS 1 /I CMOS , i , r .: L I ',-A . 13 I 1 1 at 1 kHz with the component values shown. B The next time you need a clock generatol; pick out one of these CMOS-based designs. i IN THE SEPTEMBER ISSUE, WE TOOK A look at squarewave-generator circuits. This month, we'll take another look.SCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
A 6 METER J-POLE ANTENNA 3/4 inch copper pipe 165 inches (13 ft 9 inches) 3/4 inch stainless steel hose clamr attach center conductor of coax cui and at 14 mc from of 3/4".10 rrsecr10nN5DUX
N5DUX
PRACTICAL ANTENNA DESIGN 2 practical antenna design 140 -150 mhz vhf transceivers online edition elpidio latorilla ledf media MY TOP FIVE BACKYARD MULTI-BAND WIRE HF ANTENNAS My Top Five Backyard Multi-Band Wire HF Antennas L. B. Cebik, W4RNL 1434 High Mesa Drive Knoxville, TN 37938-4443 e-mail: cebik@cebik.com 2004 marks my fifth full decade as a licensed radio amateur. YES,ALL MY COAX CABLES ARE 75 OHMS (AND EVERYTHING WORKS OK!) Yes, All My Coax Cables Are 75 Ohms (and everything works OK!) C02KK exposes some myths about using 75-ohm feedline with 50-ohm rigs and shows us how to build a "cotangent transformer," a simple matching device to make it all work. By Arnie Coro, C02KK" : ow many times have you heard '-' that 50-ohm cable is a must? I 1 Equipment instructionmanuals,
N5DUX
N5DUX's Amateur Radio projects, tools, and related articles. N5DUX'S FREE HAM RADIO PUBLICATIONS PDF ARCHIVE 73 Magazine. No collection of free amateur radio publications would be complete without mentioning the huge stash of 73 Magazine, aka Amateur Radio Today. 73 was published from 1960 until 2003. It was a perennial favorite in the amateur radio community during it's run. It PRACTICAL ANTENNA DESIGN 5 table of contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 introduction.. groundplane antenna model fa -2.. AIRBAND RECEIVER KIT Aircraft Receiver Kit This is the "DIY Airband Receiver Kit" available from eBay through several vendors from China and Hong Kong. As with many Chinese kits, the instructions are lacking or poorly translated. This receiver kit did not come with any instructions and finding them online in PDF form is proving harder than I thought. I did finally hear back from the seller and he provided me withSCAN2PDF - N5DUX
Rad.e 'haek A Division Of Tandy Corporation Fort Worth, tx 76102 'N u S A ARCHER' Cat. No. 276-5013A 276-5013 55 315628 Engineer'sMini-Notebook
N5DUX
N5DUX
A HORIZONTAL LOOP ANTENNA FOR SHORTWAVE LISTENING AND A Horizontal Loop Antenna for Shortwave Listening and Amateur Radio Use Overview: There is need for an antenna design which meets the following criteria- easily constructed with home tools; made from locally-available, non-specialty materials (as much as A SIMPLE TECHNICAL LOOK AT AN HF HORIZONTAL LOOP OF Hence, my loop still radiates efficiently, only in slightly different directions, despite the nearby metal objects. The EZNEC Model . To simulate my all-wood house, I used just the loop (red line) of Figure2.
HERE'S AN EASY-TO-BUILD DESIGN BY GM4PLM USING LOW-COST Here's an easy-to-build design by GM4PLM using low-cost, readily built ATV modules. By Simon Lewis," GM4PLM mateur Fast Scan television has I-\'\, been a part of the hobby that has fl-h fascinated me since my early days in amateur radio. DIRECT CONVERSION RECEIVERS—SOME AMATEUR RADIO HISTORY Direct Conversion Receivers—Some Amateur Radio History Wes Hayward, W7ZOI October 20, 2018 .(Appendix added, March 22, 2019.) Definition — Direct Conversion: A type of radio receiver wherein a signal is applied to a mixer and is converted directly to a baseband, typicallyaudio. There is
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