Cumulative Index, 1993 - 2010
Main topics A-Z
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search the detailed index.
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Antennas
Antennas, construction
Antennas, HF
Antennas, VHF/UHF
Batteries Books Buying
Components Connectors
Construction
Decibels
EMC
Grounding
Licensing
Measurement Morse
Noise
Packet radio Power
amplifiers Power supplies
Propagation
Receivers Repairs
RF Interference Rotators
Safety Shielding
Skin effect Smith chart
Surface mount (SMD)
Transceivers Transmission
lines Transmitters
Transverters
VDRs
Subject |
Topic |
RadCom issue7/95 = July 1995 etc. |
| See also Antennas, construction; Antennas, HF; Antennas, VHF/UHF, Transmission lines | ||
| Currents and voltages on... |
9/98, 10/98 |
|
|
Effective Radiated Power (ERP), misleading term |
10/09 | |
|
Extended double Zepp |
12/99 |
|
|
Ground reflection and gain |
11/94, 10/98, 4/00 |
|
| Horizontal dipole, vertical polarisation? | 6/01 | |
|
How much is a dB worth? |
8/98 |
|
| Inverted-U | 1/01 | |
| J-poles and 'Slim Jims' | 11/01 | |
| Misleading terms, top ten | 10/09 | |
| Reactance and resonance | 8/02 | |
|
Resonance and length |
4/94 |
|
|
Stacking |
8/97, 4/00 |
|
| 'Takeoff angle' | 6/05 | |
|
See also Connectors |
||
|
‘No single failure’ principle |
1/99 |
|
|
Cables through walls |
11/98, 1/99 |
|
|
Conductive grease |
9/95 (c10/95) |
|
| Drilling through round booms | 11/05 | |
|
Elevation rotators |
12/99 |
|
|
Elevation readouts |
1/00 |
|
|
Galling screw threads |
10/98 |
|
|
Holes in ground |
5/95 |
|
|
Hot melt glue |
4/95 |
|
|
Indoor antennas |
10/94 |
|
|
Instant concrete |
11/93 |
|
|
Knots |
6/94 |
|
| Loctite 243, thread locking | 4/10 | |
|
Paint for aluminium |
2/94 |
|
|
Plumbing masts |
2/00 |
|
| Precise coax lengths | 7/95 | |
|
PVC tape |
10/93, 11/01 |
|
|
Rope ends |
10/94 |
|
| Ropes for guys, materials | 10/00 | |
| Rusted threads (Waxoyl) | 1/03 | |
|
Self-amalgamating tape |
7/93 |
|
|
Wall brackets |
3/95 |
|
|
Water in Heliax connectors |
8/98 |
|
|
Waterproofing and sealants |
7/93, 10/93, 4/95, 1/96, 8/98, 7/00, 1/03, 12/04 |
|
|
Wind loading |
1/95, 12/98 |
|
|
Automatic reeling-in |
10/95 |
|
| 'Balanced' feedline - myths | 12/05 | |
|
Baluns |
4/93, 9/94, 5/97, 12/09 |
|
|
Best feeder length? |
9/99 |
|
| Clamp-on current meter | 12/03 and here | |
| Common-mode currents | 12/03 | |
|
Feeding balanced antennas |
9/94 |
|
|
Folded monopole fallacy |
8/99 |
|
| HF Terrain Analyser (HFTA) software | 4/06 | |
| Loading coils | 1/05 | |
|
Matching multiband doublet |
8/99 |
|
| Power dividers, VHF/UHF | 3/05 | |
| Precise coax lengths | 7/95 | |
|
Radials |
5/93, 8/95, 2/99 |
|
|
Small gardens; ‘stealth’ |
6/94, 6/00, 7/00, 12/00 |
|
| 'Takeoff angle' and terrain | 6/05, 4/06 | |
|
Traps |
6/97, 5/98, 8/98 |
|
| Antennas, VHF/UHF | Bandwidth of VHF/UHF yagis | 9/04, 11/09, 6/10 |
| Best VHF/UHF Polarisation | 1/02 | |
| Drilling through round booms | 11/05 | |
|
Elevation rotators |
12/99 |
|
| Feedpoint impedance, long yagis | 6/10 | |
|
Folded dipole construction |
4/98 |
|
|
Height |
8/93, 7/98 |
|
| J-poles and 'Slim Jims' | 11/01 | |
| Long yagi designs | 11/03, 11/09, 6/10 | |
| 'Low noise' yagis | 11/09, 6/10 | |
|
Mobile whips |
5/97 |
|
|
Nylon rivets |
2/95 |
|
|
Polarisation |
8/93 |
|
| Precise coax lengths | 7/95 | |
|
RF on coax |
2/94, 5/97 |
|
|
Siting |
7/98 |
|
|
Stacking |
8/93, 4/00, 11/09 |
|
|
See Antennas, HF; Antennas, VHF/UHF; Transmission lines; Skin effect |
||
| Voltage baluns versus current baluns | 12/09 | |
|
Cars |
3/94 |
|
|
Charging |
1/94 |
|
|
Choosing |
3/94 |
|
| NiCd nasties | 8/01 | |
| Books |
5/93, 7/93, 10/93, 11/93, 5/94, 6/95 |
|
| Components | 6/93, 9/96, 9/00 | |
| Danger - buyer beware! | 10/00 | |
|
From the USA |
2/95 |
|
| Index of Suppliers | ||
| Attenuators, power, and dummy loads | 6/02, 10/02 | |
| Band-gap voltage reference | 10/01 | |
|
Bending jig |
6/98 |
|
| Buying | 6/93, 9/96, 9/00, 7/09 | |
| Capacitors, decoupling (and in parallel) | 2/10 | |
| Capacitors, SMD electrolytic polarity | 5/02, C7/02 | |
|
Capacitors, value notations and codes |
9/93 |
|
|
Chip capacitors (SMD) |
3/95, 5/95, 10/08, 12/08 |
|
| Connectors | ||
|
Data on CD-ROM |
8/96 |
|
|
Diode colour codes |
5/98 |
|
|
Electrolytic capacitors |
7/97, 12/97 |
|
|
Electrolytics, bipolar |
11/94 (c12/94) |
|
|
Electrolytics in series |
12/97 |
|
|
Electrolytics, ripple current |
12/93 |
|
|
ESD - in practice |
2/99, 7/09 |
|
| Ferrite and iron dust cores: Sources | 5/07 | |
| Ferrite cores, identifying | 7/04 | |
| Free ferrite | 2/04 | |
| Free samples | 11/00 | |
| Fuses (in series) | 2/97 | |
| Fuses, "resettable" | 9/07 | |
| Fuse holders | 11/08 | |
| Heatsinks, adhesive | 4/10 | |
|
Hot-melt glue, RF properties |
3/99 |
|
| Hybrid couplers? | 4/07 | |
| IF filters | 3/04 | |
|
IGBTs |
2/98 |
|
| Inductance - can it vary with frequency? | 11/05 | |
|
Inductors, high-Q |
11/95 |
|
|
Inductors in ATUs |
9/99 |
|
| Keypads, restoring | 9/05 | |
| LEDs, white | 10/00 | |
|
Litz wire and braid |
8/95 |
|
|
Looking up data |
1/98 |
|
|
Magnetic core calculations |
8/96 |
|
| Magnetic (ferrite) cores, identifying | 7/04 | |
| Mains filters, switches, fuses | 11/08, 5/09 | |
|
Microwave oven test for losses |
3/96 |
|
| Relays, contact meterials | 7/04, 8/04 | |
| Relays, inductive spikes | 1/02 | |
| Relays, speeding-up | 4/02 | |
| Relays, using 28V on 12V supply | 8/02 | |
|
|
||
|
Resistor colour codes |
3/98 |
|
|
Resistor value notation |
9/93 |
|
| Resistors, low-inductance | 7/05, 8/09 | |
| Resistors, wirewound | 9/05 | |
|
RF chokes |
12/94, 3/07, 7/07 |
|
|
RF components, suppliers |
6/93 |
|
|
Semiconductor pin-outs |
10/97 |
|
|
Silicone rubbers |
7/00, 1/03 |
|
|
SMD codes |
12/97 |
|
| SMD package outlines | 10/00 | |
|
SMD resistor codes |
3/98 |
|
| Suppliers | ||
|
Tapped inductors |
4/99 |
|
| Thermistors, PTC | 9/07 | |
| Toroidal chokes for feedlines and EMC | 7/07 | |
|
Transformers, identifying unmarked |
11/97 |
|
|
Transistor as diode |
7/96 |
|
|
US product names, 'translating' |
3/98 |
|
|
US screw threads |
4/98 |
|
|
Value codes |
9/93 |
|
|
Variable inductors in ATUs |
9/99 |
|
| Connectors | 12V DC | 5/01, 11/01 |
|
Coaxial |
4/95, 8/95 |
|
|
Marking your adaptors |
10/97 |
|
|
N, BNC - origins of names |
10/95 |
|
| Powerpole 12V DC | 5/01, 11/01 | |
|
PL-259, pressure sleeve |
7/00, 10/01, 1/06, 2/06 |
|
| PL-259, soldering faults | 1/06, 2/06 | |
| Ribbon connectors | 4/08 | |
|
Soldering |
4/95 |
|
|
‘UHF’ connectors at VHF |
6/97 |
|
|
Water in Heliax connectors |
8/98 |
|
| Adhesives and sealants | 12/04, 3/10 | |
|
Anti-vibration mounts |
2/99 |
|
| Blu-tak, uses for | 6/02 | |
| Bypass capacitors | 7/02 | |
| Combine CAD software with traditional metalworking skills | 8/07 | |
| Cables, checking multi-way | 5/04 | |
|
Circuit diagrams, enlarging |
2/97 |
|
|
Cleaning silver |
2/00 |
|
|
‘Cold Front’ heatsink material |
7/98 |
|
| Component bending jig | 8/03 | |
| Connectors, "good enough" | 4/04, 5/04 | |
|
Copper foil |
5/95 |
|
| Copper wire, straightening | 3/06 | |
|
Countersinking |
2/97 |
|
| Cutting ferrite | 9/00 | |
|
Cutting PC board |
10/95, 12/95 |
|
| Depth stop for drilling | 8/01 | |
| De-soldering | 1/01, 5/05 | |
|
Drilling holes |
6/93, 8/01 |
|
|
Drilling PC boards |
12/98 |
|
| Electrical wiring, 'Part P' | 3/05 | |
| Enamelled wire, stripping | 3/02 | |
|
ESD - in practice |
2/99, 7/09 |
|
| Failed solder joints, reasons | 5/05 | |
|
Ferric chloride, disposal |
5/95 |
|
| Fishing wires and cables | 10/05 | |
|
Flexible couplers |
3/00 |
|
|
Flexible mirror |
2/97 |
|
| Flux removal | 1/06 | |
| Graph paper | 3/01 | |
|
Grounding and shielding |
9/93 |
|
| Heat shrink sleeving and strain relief | 3/08 | |
|
Interconnecting PCBs |
10/96, 11/96 |
|
| IEC (IEC320 / CEE22) | 11/08 | |
|
Internal EMC |
11/96 |
|
|
Keep CMOS clean |
9/96, 1/06 |
|
|
Labels and scales |
12/99 |
|
|
Large holes |
10/93 |
|
|
Learning how |
12/96 |
|
|
Lining up holes |
5/00 |
|
|
Litz and braid |
8/95 |
|
|
Low-cost liquid fluxes |
10/99 |
|
|
Magnifiers |
8/96 |
|
|
Marking out |
1/98, 8/07 |
|
|
Mounting PCBs |
10/96 |
|
|
PC boards from printed layouts |
5/93 |
|
|
PCB crimp terminals |
2/98 |
|
|
PCB layouts |
4/97, 11/07 |
|
|
PCBs without chemistry |
4/96, 11/07 |
|
|
Planning Veroboard layouts |
1/97, 11/07 |
|
| Plated-though holes | 5/05 | |
| Removing flux | 1/06 | |
|
Removing ICs |
3/94, 5/94, 12/95, 8/97, 5/98, 1/01 |
|
| Removing paint around holes | 12/08 | |
| Removing SMD | ||
| Screws, shortening | 12/01, 4/02 | |
|
Screws & nuts, starting |
11/95 |
|
|
Shielding and grounding |
9/93 | |
|
Short-leaded components |
1/98 |
|
|
‘Silver’ solders |
8/98 |
|
| Soldering irons | 3/02 | |
| Soldering, lead-free | 2/05, 5/05 | |
| Soldering PC boards | 11/04, 5/05 | |
|
Solders and flux |
5/99 |
|
|
Surface mount devices, SMD |
||
| Swarf catcher | 6/02 | |
| Templates using CAD software | 8/07, 11/07 | |
|
Tips |
9/95 |
|
|
Tools |
6/96, 8/96, 8/07 |
|
|
Twisting wires |
1/98 |
|
|
US wire gauges |
1/95 |
|
|
Decibels and dBW |
7/93 |
|
|
Earthing |
See Grounding |
|
| See also Grounding | ||
|
4th harmonic |
5/95 |
|
| Clean signals, '10% rule' | 11/93 | |
| Clean signals in VHF contests | 8/05 | |
| Clamp-on current meter | 12/03 and here | |
| Common-mode chokes and current baluns | 7/07, 12/07, 5/10 | |
| Common-mode currents | 12/03, 7/07, 12/07, 5/10 | |
| Decoupling of supply rails | 2/10 | |
| Filters, effects of grounding | 7/08, 8/08 | |
| Free ferrite - scan cores | 2/04 | |
|
‘Ground’ is not ‘earth’ |
1/97, 10/09 |
|
|
Harmonic filters |
3/97 |
|
| How wide is "wide"? | 1/07 | |
|
Internal EMC |
11/96 |
|
|
Mains filters |
4/97, 5/09 |
|
|
Power supply grounding |
2/96 |
|
| Station grounding, lightning protection, mains filtering | 6/03 (c 8/03), 5/09 | |
| RF chokes and current baluns | 3/07, 7/07, 12/07, 5/10 | |
|
RF feedback |
7/93, 9/95, 12/01, 12/03 |
|
|
Ring main for DC? |
4/97 |
|
|
SWR meter harmonics |
9/97 |
|
|
Terminated LPFs |
11/99 |
|
| Toroidal chokes for feedlines and EMC | 7/07 | |
| Touch lamp RFI | 2/05 | |
| Up the downlead, down the uplead | 10/02 | |
|
VDRs (Varistors) |
1/94, 11/98 |
|
|
Fault-finding |
See Repairs |
|
| Feeders, Feedlines | See Transmission lines | |
|
Filters |
See EMC |
|
| Grounding |
Construction methods |
9/93, 11/08 |
| Decoupling of supply rails | 2/10 | |
| Filters, effects on | 7/08, 8/08 | |
|
‘Ground’ is not ‘earth’ |
1/97, 10/09 |
|
|
Ground (earth) rods |
5/95, 8/95, 10/07 (c 12/07) |
|
| Earthing in mains power supplies | 11/08, 5/09 | |
|
Radials |
5/93, 8/95, 2/99 |
|
| RF grounding through PC boards | 1/01, 3/01 | |
| Station grounding, lightning protection, mains filtering | 6/03 (c 8/03), 1/05, 11/08, 5/09 | |
|
Upstairs shack |
5/94 |
|
| Headphones | See Receiving | |
|
See also EMC; Transmitting |
||
|
6/97 |
||
|
Peak Envelope Power |
10/93 (c1/94), 5/96, 11/00 |
|
|
Power limits |
5/96 |
|
|
Airflow |
8/97, 12/97 |
|
|
Attenuators |
12/97, 7/00, 3/10 |
|
|
Bird 43, checking |
10/97 |
|
|
Burned-out resistors |
7/99 |
|
|
Chip capacitors |
3/95, 5/95 |
|
|
Circular mils |
4/95 |
|
|
Coax impedance, finding |
2/95 (c3/95) |
|
| High voltage, measuring | 10/05 | |
|
High voltage probe |
4/94 |
|
|
Impedance |
7/97 |
|
|
Impedance, ‘j’ notation |
2/98 |
|
| Inductance - can it vary with frequency? | 11/05 | |
|
Meter scales |
3/96, 11/02 |
|
|
Meter shunts |
3/96 |
|
|
Power measurement and attenuators |
12/97, 3/10 |
|
| Storage 'scope, human | 5/02 | |
|
SWR analysers |
5/00 |
|
| SWR errors: Reflections on Antenna Analysers | 2/07, 6/09, 1/10 | |
|
SWR indication |
1/96, 2/96, 1/10 |
|
|
SWR meters |
9/94, 1/10 |
|
|
SWR meter harmonics |
9/97 |
|
|
SWR test load |
7/97 |
|
|
SWR varies? |
10/94 |
|
|
Test connections |
7/99 |
|
|
Time |
7/99 |
|
|
Voltage reference |
6/00 |
|
|
Metalwork |
See Construction (several entries) |
|
|
Meters |
See Measurement |
|
| Microphones | See Transmitting | |
|
Increasing speed |
1/98 |
|
|
Speed calibration |
6/94 |
|
| Noise | 'Noiseless' RF feedback | 6/01 |
| VHF/UHF noise floor | 2/01 | |
|
Can’t connect? |
7/93 |
|
|
DXcluster |
3/94 |
|
|
External shutdown switch |
9/94 |
|
|
TNC settings |
4/93, 5/93, 7/93 |
|
|
Peak Envelope Power |
See Transmitting Misleading terms |
10/09 |
|
See also Transmitting; EMC |
||
|
Air filters |
6/95 |
|
|
Airflow, measuring |
8/97, 12/97 |
|
|
Biasing transistors |
9/95, 12/95 |
|
|
Blowers |
11/94, 9/07 |
|
|
Chimneys |
5/96 |
|
| Clean signals, '10% rule' | 11/93 | |
| Clean signals in VHF contests | 8/05 | |
|
Efficiency v linearity |
11/93 |
|
|
Flashover protection |
1/96, 2/96 |
|
|
Hard switching |
4/93 |
|
|
Harmonic filters |
3/97 |
|
| High voltage power supplies | 1-2-3/09 | |
|
Improving a ‘brick’ |
9/95, 12/95, 4/99 |
|
|
‘K2RIW’ air cooling |
5/98 |
|
|
Linearity |
11/93, 9/95, 12/95, 5/96, 4/99, 2/00, 1/07 |
|
|
Tapped inductors |
4/99 |
|
|
Tetrode isn’t a triode |
9/96 |
|
|
Tuning & loading |
6/93 |
|
|
What’s a 4CX250R? |
6/95 |
|
| '12V DC', misleading | 10/09 | |
|
Autotransformers |
10/94 | |
| Band-gap voltage reference | 10/01 | |
|
Battery chargers |
11/98 |
|
|
Choosing |
11/93 |
|
|
Crowbar |
11/93 (c1/94) |
|
| Diodes, replacing rectifier | 12/04 | |
|
Diodes in series |
1/97, 10/97, 12/04 |
|
|
Dual voltage rectifier |
7/99 |
|
| Easy PSU design (software) | 8/01 | |
|
Fuses (in series) |
2/97 |
|
| Generators, what size? | 11/03 | |
|
Grounding |
2/96 |
|
| High voltage power supplies | 1-2-3/09 | |
|
Identifying unmarked transformers |
11/97 |
|
|
‘Idiot’ diodes |
7/96 |
|
|
LM317 regulators |
4/00 |
|
|
Mains filters |
4/97, 6/03 (c 8/03), 5/09 |
|
|
Mains PSUs and safety |
1/99, 3/99, 6/03 (c 8/03), 11/08 |
|
| NiCd nasties | 8/01 | |
|
Soft starting |
12/98 |
|
|
Switch-mode PSU repair |
5/99 |
|
|
Test load for 20A PSU |
6/95 |
|
| Transformers, changing voltages | 10/03 | |
|
Transformers, VA ratings |
4/94 |
|
|
VDRs |
1/94, 11/98 |
|
|
Voltage doubler |
6/99 |
|
|
Terminology |
10/93 |
|
| HF Terrain Analyser (HFTA) software | 4/06 | |
| 'Takeoff angle' and terrain | 6/05, 4/06 | |
| Beats | 11/00 | |
|
Comparing RX sensitivity |
10/99, 1/08 |
|
| Digital modes | 2/03, 4/03, | |
| Dynamic range | 1/08 | |
|
Frequency setting |
4/93, 5/93, 2/03, 4/03 |
|
|
Headphones, connections |
8/94 |
|
|
How much is a dB worth? |
8/98 |
|
|
Noise blankers |
7/96, 8/96 |
|
| Noise, external | 1/08 | |
| Noise floor | 1/08 | |
|
Phase noise primer |
12/96 |
|
| Roofing filters | 2/08 | |
|
S-units |
3/00 |
|
|
Antennas |
6/98 |
|
|
Burned-out resistors |
7/99 |
|
| Cable breaks, locating | 1/00 | |
|
Drowned radios |
12/93 |
|
|
Fault-finding logic |
6/95, 6/98, 9/01 |
|
|
Monitors |
9/98, 3/99 |
|
|
Quicker by Web |
9/98 |
|
| Rotators | 7/94 | |
|
Series light bulb trick |
3/99 (c5/99) |
|
| Solder - £1000 a milligram? | 9/01 | |
|
Switch-mode PSUs |
5/99 |
|
| Toroid troubles | 9/01 | |
|
Traps |
6/97 |
|
| RF Interference | See EMC | |
|
Bipolar electrolytics |
11/94 |
|
|
Circuits |
8/94 |
|
|
Dismantling and maintenance |
7/94 |
|
|
Elevation rotators |
12/99 |
|
|
Elevation readouts |
1/00 |
|
|
Installation |
8/93, 2/95 |
|
| Loctite 243, thread locking | 3/10 | |
|
Mast clamps |
11/99 |
|
|
Safety and Health |
See also Grounding; Antennas, construction; Construction |
|
| Chairs and furniture | 3/03 | |
| Electrical wiring, 'Part P' | 3/05 | |
|
Fuses (in series) |
2/97 |
|
| Fuses, "resettable" | 9/07 | |
| Ground (earth) rods | 5/95, 8/95, 10/07 (c 12/07) | |
| High voltage power supplies | 1-2-3/09 | |
|
Mains PSUs and safety |
1/99, 3/99, 6/03 (c 8/03), 11/08, 5/09 |
|
|
Principles, ‘no single failure’ |
1/99, 1/09 |
|
|
Removing ICs |
5/98 |
|
|
Residual current circuit breakers |
5/99 |
|
| Shocks from inductive components - avoiding | 8/03 | |
| Station grounding, lightning protection, mains filtering | 5/95, 8/95, 6/03 (c 8/03), 1/05, 10/07 (c 12/07), 11/08, 5/09 | |
|
Boxes |
10/96 |
|
| Removal of paint | 12/08 | |
|
Skin effect |
See next topic |
|
|
See also Shielding; Transmission lines |
4/95 |
|
| Coaxial cable | 12/09 | |
| DC and RF resistance of wires | 5/01 (c7/01) | |
|
Litz wire and braid |
8/95 |
|
| Up the downlead, down the uplead | 10/02 | |
|
Learning about |
10/97 |
|
| Made easy | 4/01 | |
| Capacitors, SMD electrolytic polarity | 5/02 (c7/02) | |
| Finding dropped SMD | 8/03 | |
| Grounding through PCB | 1/01, 3/01 | |
| Package codes | 12/97, SMD Codebook | |
| Package outlines | 10/00 | |
| Removing | 10/93, 8/98, 6/99, 1/01 | |
| Resistor codes | 3/98 | |
| Tools and equipment | 9/08, 12/08 | |
|
Soldering |
10/08, 12/08 |
|
|
SWR |
See Transmission lines and Measurement |
|
| Test equipment | See Measurement | |
|
Also see Transmitters and Receivers |
|
|
|
Frequency setting |
4/93, 5/93 |
|
| Transceiver/computer interfacing | 12/02 | |
| '600 ohm' feedline | 8/99, 9/99, 8/00, 3/06 | |
|
ATU power ratings |
6/97 |
|
| ATUs, Q values | 9/01 | |
| ATUs, remote | 12/00 | |
|
ATUs, variable inductors in |
9/99 |
|
|
Balanced antennas, feeding |
9/94 |
|
| 'Balanced' feedline - myths | 12/05, 10/09 | |
| Baluns, voltage versus current | 12/09 | |
|
Best feeder length? |
9/99 |
|
| Clamp-on current meter | 12/03 and here | |
| Coax for HF beam | 2/06 | |
|
Coax impedance, finding |
2/95 (c3/95) |
|
| Common-mode chokes and current baluns | 7/07, 12/07, 5/10 | |
| Common-mode currents | 12/03, 12/09 | |
| DC and control signals up the coax | 4/09 | |
| Foam coax: What is the foam for? | 6/07 | |
| Inside a directional wattmeter | 9/02 | |
| L-networks: Where's the L? | 5/07 | |
| Losses due to high SWR | 3/02 | |
|
Low-loss coax |
10/94, 6/07 |
|
|
Matching multiband doublet |
8/99 |
|
| Open-wire | 8/99, 9/99, 8/00, 3/06 | |
|
PL-259, improved |
7/00, 10/01, 1/06, 2/06 |
|
| PL-259, soldering faults | 1/06, 2/06 | |
| Q of ATU networks | 9/01 | |
| RG-8X and Mini-8 | 6/07 | |
|
RG or not RG? |
12/95 |
|
| Power dividers, VHF/UHF | 3/05 | |
| Precise coax lengths | 7/95 | |
|
Splicing coax |
6/98 |
|
|
SWR analysers |
7/97, 5/00, 6/09 |
|
| SWR errors | 5/02, 2/07, 6/09, 1/10 | |
| SWR, losses | 3/02 | |
|
SWR meters |
9/94, 1/10 |
|
|
SWR meter harmonics |
9/97 |
|
|
SWR variation |
6/98 |
|
|
Tapped inductors |
4/99 |
|
|
TV coax |
1/94 |
|
|
‘UHF’ connectors at VHF |
6/97 |
|
| VSWR - see SWR topics above | ||
|
See also Power Amplifiers |
||
| Automatic Level Control (ALC) | 7/95, 5/08 | |
| Clean signals, '10% rule' | 11/93, 6/08 | |
| Clean signals in VHF contests | 8/05' 6/08 | |
| CW break-in | 4/03 | |
| Digital modes | 2/03, 4/03, | |
|
Effective Radiated Power (ERP), misleading term |
11/09 | |
|
FM deviation adjustment |
11/93, 2/94 |
|
|
Frequency setting |
4/93, 5/93, 2/03 |
|
|
Harmonic filters |
3/97, 7/08, 8/08 |
|
|
How much is a dB worth? |
8/98 |
|
| How wide is "wide"? | 1/07 | |
| Key clicks | 4/05 | |
| Microphone preamp for IC-746, IC-706 | 10/01 | |
|
Microphones, choosing and using |
8/94 |
|
|
Monitoring transmission quality |
12/94, 6/04 |
|
| Output impedance? | 2/02 | |
| Passive grid | 11/02 | |
|
Peak Envelope Power misleading term |
10/93 (c1/94), 5/96 11/00 |
|
|
Phase noise |
12/96 |
|
|
Power limits |
5/96 |
|
| PSK31, sound card interfacing, linearity | 11/03, 1/04 | |
|
RF feedback |
7/93, 9/95, 12/01 |
|
| Speech processing | 6/03 | |
|
SSB carrier adjustment |
5/94, 2/03, 4/03 |
|
|
TX/RX sequencing |
4/96, 4/03 |
|
| USB or LSB? | 7/03, 1/04 | |
|
When to whistle |
1/94 |
|
|
Interfacing |
12/93 |
|
|
1/94, 11/98 |
||
|
VSWR |
Last updated
10 April 2010
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