Amateur Radio Links & Notes by William Eric McFadden revision 11092009-1128

Table of Contents

QRP Contests QRP Field Events Hamfests & Symposia QRP Discussion Groups & Blogs Elecraft Heathkit Ten-Tec R.L. Drake

Amateur Satellite Winlink APRS & GPS Bicycles Combined with Amateur Radio Canoes/Kayaks Combined with Amateur Radio WD8RIF 2xQRP WAS Map Miscellaneous

See the Amateur Radio Links at WD8RIF for a more complete set of links.

Links to sites not related to amateur radio can be found in my Bookmarks.

Read my disclaimer.

"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat." -- Albert Einstein (1879 - 1955)

QRP Contests (and other operating events) (return to top)

December 9, 2009 (0130Z - 0330Z): NAQCC Sprint (rules)

1st Monday of each month: Spartan Sprints -- sponsored by the Adventure Radio Society

Original QRP Contest Calendar at the E-PA QRP Club

(Logs and Dupe Sheets for QRP ARCI events are available here.)

QRP Field Events (return to top)

February 6, 2010: Arizona scQRPions "Freeze Your B___ Off" (generally the first Saturday in February; rules)
April 24, 2010: QRP to the Field (traditionally the 4^th Saturday in April; rules)
September 18, 2010: QRP Afield (always the third Saturday in September; rules)

(Logs and Dupe Sheets for QRP ARCI events are available here.)

Hamfests & Symposia (return to top)

November 14-15, 2009: Ft. Wayne (Indiana) Hamfest

January 17, 2010: Sunday Creek ARF Hamfest (Nelsonville)
February 14, 2010: Mansfield Hamfest
May 13-16, 2010: QRP ARCI "Four Days in May"
May 14-16, 2010: Dayton Hamvention

Search for hamfests at ARRL

QRP Discussion Groups & Blogs (return to top)

QRP-Tech and sign in
QRP-L at QTH.Net, and the official archives
K5TR's archive of QRP-L at kkn.net, with good search engine
QRP-L at Yahoo! Groups
W8KC's qrpl.w8kc.com with QRP-L number look-up.
QRP-L.org

HF Pack and Yahoo! Club (and sign in)

eHam.net

QRPer.com, a blog by Tom Witherspoon, KF4TZK
The QRPer & Trail-Friendly Radio Extra, blogs by Richard Fisher, KI6SN
W2LJ's Blog -- QRP, Morse Code & Amateur Radio
KC8QVO, a blog by Steve Damico
The Adventures of Rooster and Peanut with Steve, N0TU

Elecraft (return to top)

N0SS's Amateur Radio Page, K2 Section

K2 Mods by W3FPR (new URL)
LA3ZA Unofficial Guide to Elecraft K2 Modifications
Improving the K2's CW Filter Ultimate Rejection by KO0B

Elecraft K2 & K1 Links by K8ZT

PSK31 and an Elecraft K2 Mod (PDF) by WB4QXE

by G4ILO

Build a Headset for the Elecraft K2

Getting on Data Modes with the Elecraft K2

VA3UXB's K1 & K2, with mods

K2 Quick Reference Cards:

by W3DX (HTML) at Elecraft

by NS6N (PDF) at Elecraft

by WF4I (PDF) at W3FPR

Rework Eliminator for K2, including Internal Mic Adapter

Heathkit (return to top)

On Heathkit Manuals: In October, 2008, the intellectual property rights to Heathkit legacy products were purchased by Don Peterson of Data Professionals of Pleasanton and it appears Mr. Peterson has been very aggressive in stopping on-line manual downloads and sales. Downloadable Heathkit manuals are no longer available at BAMA (or at the mirror) or from other sources on the web. Data Professionals offers printed copies of some manuals but at this time none are available for any of the Amateur Radio products ever offered by Heathkit.

The Heathkit Shop by Mike Bryce, WB8VGE
RTO Electronics, specializing in the repair of Heathkit Amateur Radio equipment
Harbach Electronics--Heathkit, Drake, Collins, and Dentraon parts and upgrade kits
N0JMY's Hayseed Hamfest--Re-Cap kits

Technology Systems with photos of unbuilt kits and downloadable catalogs and manuals
The Heathkit Virtual Museum
Heathkit Message Board

Schematics for Heathkit equipment can be downloaded at Vintage Radio Information

The Benton Harbor Lunch-boxes: the Tener, Sixer, and Twoer

Thousands of these transceivers now in use across the nation, in homes, offices, cars, trucks, boats, etc., attest to their popularity and proven performance. Their neat, compact design, low cost and high versatility make them ideal for use in either mobile or fixed station installations. All feature crystal-controlled transmitters and tunable superregenerative receivers with RF preamplifiers designed for operation on the 2, 6 or 10 meter amateur bands. The highly sensitive receivers pull in signals as low as 1 microvolt and produce complete quieting on reasonable signal levels. The transmitters with up to 5-watt input are more than adequate for "local" net operations and the communication range of all models is unlimited under "skip" conditions. Other features include: a built-in RF trap on the 10 meter version to minimize TVI; frequency multipliers on the 6 & 2 meter versions to provide straight-through finals from an oscillator using a fundamental crystal in the 8 mc range; built-in final amplifier metering jack, and "press-to-talk" transmit/receive switch on the front panel with "transmit-hold" position. Kit includes a ceramic element microphone and two power cords, one for use with the built-in AC power supply and one for use with a vibrator power supply such as the Heathkit GP-11 for 6 or 12 volt mobile operation. Transfer from fixed station to mobile operation in a matter of minutes. Handsomely styled in two-tone mocha and beige. Less crystal.

HW-19, HW-29A, & HW-30 at the Heathkit Virtual Museum HW-30 "Two-er" at Richard Post's Boat Anchor Pix FT-243 crystals are available from AF4K--$12 plus shipping search eBay for FT-241 & FT-243 crystals The 6m and 2m lunch-boxes cost $44.95 in 1964 and 1967. (1964 catalog page & Nov 1967 QST ad)

Hotwater QRP: the HW-7, HW-8, and HW-9

Whether you use it for standby, camping, emergency operation, or your primary rig, the Transceiver will prove its worth. Band changing and tune-up are easily accomplished with pushbutton band selection and single-control Tuning. The light-weight and compact Transceiver has pushbutton crystal transmit provisions for the novice or QRP roundtables. Main tuning is accomplished through a 6-to-1 vernier that is virtually backlash free. A Relative Powermeter, built-in sidetone, and carry-along size make the Transceiver a pleasure to operate.

ARRL Product Reviews on ARRL's Members Only site:

HW-7 (January, 1973)

HW-8 (April, 1976)

HW-9 (July, 1985)

HFT-9 Antenna Tuner (July, 1984)

KK4KF's HW-7/8/9 Information Page
Michael Bryce's Repairing the HW-8 at The Heathkit Shop
WB6FZH's HW-8 Page & HW-8 Modifications, Repairs, & Recollections
K8YTOs Index of HW-7, 8, and 9 Modifications in Excel 97 spreadsheet format

The Freq-Mite from Small Wonder Labs is ideal for incorporation within an HW-7 or HW-8. (See notes here about installing a Freq-Mite in the HW-8.) In HW-8 Handbook, First Edition (1994), Michael Bryce recommends replacing the MPF-105 front-end in the HW-8 with a 2N4416 for a significant increase in sensitivity. He notes, "The extra pin of the 2N4416 grounds the case, and it may be done with a small hole drilled into the PC board nearby the new unit, or the ground simple (sic) may be left 'floating' with no noticeable loss in performance." (This suggestion was not included in the Second Edition of the book.) The 2N4416 is available for $2.50 each at RF Parts. The 2N4416A is available at Mouser for $2.00 each. (Note: RF Parts has a $25 minimum order; Mouser has no minimum order.)

Classic Heathkit Stations:

DX-60: The DX-60 Amateur Transmitter with its many design features offers more in quality, performance, and dependability than any other unit in its price and power class! Superbly designed throughout, the DX-60 with its high quality components, clean, rugged construction and thoughtful circuit layout makes it an ideal "first" transmitter for the novice. Construction proceeds smoothly from start to finish with the complete, informative instructions furnished. All parts are easily identified and a precut, cabled wiring harness eliminates much of the tedious wiring. The completed unit with its neat, functional panel layout provides for maximum ease of operation. Circuit-wise, the DX-60 features a built-in low pass filter for harmonic suppression, neutralized final for high stability, grid block keying for excellent keying characteristics and easy access to crystal sockets on the rear chassis apron. A front panel switch selects any of four crystal positions or an external VFO. Controlled-carrier modulator and silicon diode power supply are built in. Single knob bandswitching for 80 through 10 meters and pi network output coupling provide complete operating convenience. A high-quality panel meter shows final grid or plate current to aid in tuning. In every way, the DX-60 represents an outstanding amateur "buy." May be run at reduced power for novice operation. Less crystals.

Recent Equipment: DX-60 Transmitter Kit (July, 1961 QST) by George Grammer, W1DF, in QST Archives at ARRL

DX-60 at Heathkit Museum

DX-60 at Rich Post's Boat Anchor Pix

DX-60 catalog page can be viewed on page 33 of the Christmas 1961 Catalog available at Technology Systems

DX-60 catalog page can be viewed on page 22 of the 1963 Catalog available at Technology Systems

Re-Cap Kits for the DX-60, DX-60A, & DX-60B are available at Hayseed Hamfest

HR-10: This handsomely-styled amateur receiver is a perfect match for the DX-60 Transmitter, providing complete high-performance station receiver facilities at low cost! The HR-10 is designed for amateur band coverage only on 80 through 10 meters, for maximum accuracy and stability. Each band is separately calibrated on a large, easy-to-read slide-rule dial. The tuning dial is illuminated and provides over 6" of bandspread for precise frequency settings. A carefully-designed diode detector, plus BFO, tunes AM or CW and SSB signals. The 7-tube superheterodyne circuit features an RF stage for added sensitivity and employs a half-lattice crystal filter for excellent selectivity characteristics...a necessity with today's crowded band conditions. Two IF amplifiers operating at 1680 kc provide good image rejection. Other features include: "S" meter to aid in tuning and determining relative strength of received signals; a 3-gang tuning capacitor to assure proper tracking of all circuits rather than "Broad Banding"; a front panel dial calibration control and provision for a plug-in 100 kc crystal calibrator to provide accurate dial calibration at any 100 kc point across the band. Other panel controls consist of: antenna trimmer, bandswitch, tuning, BFO tuning, RF gain, AF gain w/AC on-off switch, xtal. calibration on/off, STBY/RCV, BFO on/off, AVC on/off, and automatic noise limiter on/off. An accessory socket is provided on the rear chassis apron for receiver muting, etc., and a speaker jack is provided for use with any 8 ohm PM speaker. 21 lbs.

Recent Equipment: HR-10 Receiver (July, 1963 QST) by George Grammer, W1DF, in QST Archives at ARRL

HR-10 Receiver at Heathkit Museum

HR-10B Receiver at Rich Post's Boat Anchor Pix

HR-10 catalog page can be viewed on page 33 of the Christmas 1961 Catalog available at Technology Systems

HR-10 catalog page can be viewed on page 24 of the 1963 Catalog available at Technology Systems

Re-Cap Kits for the HR-10 & HR-10B are available at Hayseed Hamfest

Reviews at Eham indicate the HR-10/HR-10B is an extremely poor performer; a Drake 2-B with 2-BQ would be a much better choice

Recent Equipment: Heathkit Model HG-10 VFO (October, 1963 QST) by Edward Tilton, W1HDQ, in QST Archives at ARRL

HG-10 VFO at Heathkit Museum

HG-10 VFO at Rich Post's Boat Anchor Pix

Recent Equipment: Heathkit HW-16 C.W. Transceiver (January, 1968 QST) by George Grammer, W1DF, in QST Archives at ARRL

HW-16 Novice Transceiver at rigpix.com

Re-Cap Kits for the HW-16 are available at Hayseed Hamfest

HP-23 AC Power Supply at Heathkit Museum

Rebuild an HP-23 with the HP23R (~$65) or HP23RL (~$56) by Michael Bryce or the HP-23D (~$63) by Old Heathkit Parts

Note: The HR-10 and DX-60 each feature a built-in power supply and don't need an HP-23.

FT-243 crystals are available from AF4K--$12 plus shipping

search eBay for FT-241 & FT-243 crystals

Heathkit Citizen-Band Walkie-Talkies:

The GW-31/31A "Hand-Held Transceiver" is a single-channel rig with superregenerative receiver and crystal-controlled 100mW (input) transmitter. The GW-21/21A "Deluxe Hand-Held Transceiver" is a single-channel rig with superheterodyne receiver and crystal-controlled 100mW (input) transmitter. It features a squelch circuit and external antenna and earphone jacks. The GW-21/21A is significantly larger than the GW-31/31A. Click here for schematic of the GW-21A. The GW-52A appears to be a GW-21A with internal rechargeable batteries.

WD8RIF has a pair of GW-21 transceivers and a GW-31 which he may move to ten meters. GW-21/21A: The receive crystal is 455kc higher in frequency than the transmit crystal. The GW-21 & GW-31 were designed for the NEDA #1602 carbon-zinc battery which is 9 volts and 850mAh; see Energizer No. 246. Modern, smaller, 9v alkaline batteries have approx. 625mAh capacity; see Energizer 522; a pair in parallel would have 1250mAh capacity.

Ten-Tec (return to top)

ARRL Product Reviews:

Argonaut 505 (November, 1972)

(Apparently, the ARRL never reviewed the Argonaut 509 or 515...)

Agonaut II (January, 1992)

Argonaut V Model 516 & Expanded Report (April, 2003)

Omni D (January, 1980)

Omni V (November, 1990)

Omni VI (January, 1993)

Omni VI Plus & Expanded Report (November, 1997)

Omni VII (July, 2007)

TenTecWiki

The W8KC Virtual Ten-Tec Museum

Power Mite by VE3JC
Power Mite manual in .PDF format

The Odyssey of the Argonauts by Anthony Luscre
WB6FZH's Argonaut 505 portable station in a tube caddy

Argonaut 509 Schematics courtesy of Rob Frohne

According to Paul Clinton, WD4EBR, Ten-Tec Service Manager (email), the dial string for the Argonaut 509 is $1.50 and the PTO kit is $25.00. Shipping is $6.00.

The NorCal VE3DNL Marker Generator would work well as a crystal calibrator for the Argonaut 509.
The NorCal FCC-1 Frequency Counter looks ideal for an external digital display for an Argonaut 509.

Argonaut 509 at RigPix Database Argonaut 515 at RigPix Database Argonaut II at RigPix Database Argonaut V at RigPix Database Omni D at RigPix Database Corsair II at RigPix Database Omni VI Plus at RigPix Database

On powering older Ten-Tec 100-watt transceivers with non-OEM power supplies: Michael Bryce's Remote Power Controller (approx. $20) allows older Ten-Tec 100-watt transceivers to be powered by non-OEM power supplies or batteries while retaining functionality of the transceivers' front-panel power switch. This device was described in the September, 2007 issue of QST and is available from Michael at his Heathkit Shop. (Currently, Michael's website doesn't have a page for this device; email him for cost and availability.) Early Ten-Tec 100-watt transceivers lack SWR-foldback circuitry and rely on a fast circuit breaker in the power supply to protect the transmitter from high SWR. For use of these rigs with non-OEM power supplies or batteries, Ten-Tec recommends the use of an Airpax T11-1-20.0A-01-11C-V fast trip magnetic breaker. This device is available at Poco Sales. Price is one at $25 each, two at $12.50 each, and three at $9.25 each. Minimum order is $25. Paul Clinton, Ten-Tec Service Manager, says these are also available at marine shops--they're used in charging circuits for trolling motor batteries.

R.L. Drake (return to top)

R.L. Drake Virtual Museum

2-B Receiver & 2-BQ "Q Multiplier"

Manuals at BAMA

K2TQN's Drake Novice Station, with 2NT transmitter and 2B + 2BQ receiver

Amateur Satellite (return to top)

AMSAT.org

Work an FM VHF/UHF Satellite with an HT:

AMSAT-OSCAR 51

12 Suggestions for Success Working AMSAT-OSCAR 51 (Echo) on a Handheld Transceiver

AO-27 & SO-50 FAQ

Working Your First Amateur Satellite (SUNSAT SO-35)

Working the Easy Sats (PDF)

How to Work AO-51 with Your HT (PDF) by K6LCS

Arrow II Satellite Antenna at ArrowAntennas.com

"Down-to-Earth" Satellite Communications (PDF), by N1ASA

mp3 audio file by N1ASA of nine QSOs made through AO-51 at 76º elevation, Arrow antenna w/preamp, and 20-watts

Amateur Satellite Articles at EB4DKA

The "IOio" Antenna (pdf)

The "CJU" ANtenna / The Magic Antenna (pdf)

The Arrow Antenna and the Satellites (pdf)

K6LCS's How to Work Satellites with Your HT

Orbitron satellite tracking software

Winlink (return to top)

Winlink 2000

Get Started

Winlink for Dummies online course

APRS (Automatic Packet Reporting System) and GPS (Global Positioning System) (return to top)

Southeast Ohio APRS Development by W8KVK

FindU.com

mobile: WD8RIF & with timestamps

home QTH: WD8RIF-1 & with timestamps

check APRS messages on-line: http://www.findu.com/cgi-bin/msg.cgi?WD8RIF-1; change callsign and SSID as needed

internet-to-APRS text messaging: http://www.findu.com/cgi-bin/entermsg.cgi

      (APRS station must be on the air and in range of I-Gate; full callsign and SSID required)

Google APRS Maps with zoom and scroll

mobile: WD8RIF

home qth: WD8RIF-1

APRS World APRS database and information

TinyTrak forum at Yahoo!Groups (and sign in)

Amateur Radio High Altitude Ballooning, with launch announcements

A Guide to the Global Positioning System (GPS) at Radio Shack
About GPS & GPS for Beginners at Garmin
GPSInformation.net by Joe Yeazel N4TEB, Jo Mehaffey W2JO, & Dale DePriest

APRS.org & direct URL by Bob Bruninga, WB4APR (& symbols table)
APRS & GPS at TAPR.org

Automatic Packet Reporting System (APRS) at ARRL
Automatic Packet Reporting System (APRS) at ARRL (sidebar to QEX article)
Position Reporting with APRS at ARRL
Build an APRS Encoder Tracker at ARRL, in PDF format

UI-View32 APRS client for Windows (and registration)

Convert Lat/Long between various formats

grab topo maps at TopoZone.com
instructions on importing to GPS (and APRS software?) here: GPS and Adventure Radio by VE3JC

Review of Delorme EarthMate GPS Receiver by Joe Mehaffey (W2JO) & Jack Yeazel (N4TEB): This $150 receiver (can come bundled with Street Atlas 8) is a 12 channel receiver/antenna combination, but has no display. It is "rain resistant" and so may be itself mounted on your car's roof. The EarthMate GPS receiver is designed specifically to work with Delorme's Street Atlas 4/5/6/7 software and unless connected to a laptop with SA running, the EarthMate shuts down and provides no data. This unit acquires reasonably quickly and maintains lock not quite as well as most other 12 channel parallel receivers. Overall, it is among the lowest cost GPS receiver/software packages, but its lack of a stand alone display, and the fact that it only works with Delorme Mapping software products makes it less desirable than others. Speed capability is reported as 900 kph. The Earthmate and Tripmate have been reported to be among the least accurate of the low cost GPS receivers. (found in Low Cost GPS Review)

DeLorme Earthmate Serial:

at DeLorme.com:

USB-to-Serial Adapter Driver for Windows

Using HyperTerminal to Test Earthmate

Use the serial Earthmate for APRS by N9UUR using the GST-1 GPS Sentence Translator

serial Earthmate initialization software: InitEartha.zip

TinyTrak3 configuration software and documentation: TinyTrak3.zip

Use a DeLorme Tripmate with a TinyTrak3 by KD5OM
limited serial Earthmate support can be found at Delorme

Bicycle-Mobile APRS

(See Bicycle Combined With Amateur Radio within this document for more on use of radio on bicycles.)

WD8RIF and the ACARA provide APRS support to the Athens (Ohio) Marathon
ACARA Marathon Communications Planning Page
a thread at BMHA about bicycle-mobile APRS

The Athens Marathon will be using chip-timing in 2009.

They will be using Runners' High system.

They will have systems at finish and both turn-arounds.

Both Full- and Half-Marathon runners will be tagged.

Runners will wear visible numbers in addition to tags.

Tags will not be used for "real time on course" tracking so ACARA lead/last runner reports will remain valuable.

Learn more about RFID tracking: IPICO Sports.

WD8RIF bicycle-mobile APRS configuration:

DeLorme Serial Earthmate => Byonics GST-1 => Byonics TinyTrak3 => Icom IC-02AT

TinyTrak3 GPS Encoder for APRS by Byonics

rig-specific cables from Byonics

TinyTrak3-to-radio wiring diagrams

TinyTrak3 in QST in PDF format

KD5OM's Building and Configuring the TinyTrak3 in PDF format

KD5OM's Configuration Connector for the TinyTrak3

external power for the serial Earthmate (5-6vdc to pin 9; ground is pin 5)

external power for Earthmate and GST-1 at Byonics

TinyTrak at Yahoo!Groups (and sign in)

Shorting J7 in TinyTrak3 will provide power to GST-1 through pin 4 of the serial port.

TinyTrak3 draws approximately 6.6mA plus 3mA for each lit LED at 12v; GST-1 draws approximately 8.5mA.

Second APRS stations under consideration:

Byonics GPS1 => TinyTrak3+ => Icom IC-2AT: $ 99

Byonics GPS2 => TinyTrak3+ => Icom IC-2AT: $112

Byonics HT2P interface cable w/PowerPoles: $ 20

Byonics GPS1 => Micro-Trak 8000 FA 10w 2m tx w/TinyTrak3 chip : $236

Byonics GPS2 => Micro-Trak 8000 FA 10w 2m tx w/TinyTrak3 chip : $249

Aeronautical-Mobile APRS

APRS forum at VansAirForce.net

HP iPAQ HX2415 Pocket PC:

Intel PXA270 Processor 520MHz

Integrated 802.11b & Bluetooth

Integrated Compact Flash type II (CF) and Secure Digital slots (SDIO)

3.5" transflective TFT QVGA with 64k color LED backlight display

Microsoft Windows Mobile 2003 Second Edition

Support at HP

HP and Compaq iPAQ Pocket PC -- Using ActiveSync at HP

ActiveSync at Microsoft

description at Amazon.com

description at T1 Rex

PocketGEM, free mapping software for PocketPC and external GPS

PDA to GPS: Using a Handheld Computer as a Navigation Tool (Palm OS)

Cabling DeLorme Earthmate (serial) to PocketPC

Serial Adapter for HP iPAQ with power ($29.95) & without power ($19.95) at Gomadic
Syncable Solutions--serial cables for Palm OS PDAs
Serial (RS232) Interfaces for PDA at PC-Mobile

In an email dated 2007-07-2 DeLorme confirmed that Street Atlas USA 2008 DVD works with PDAs with touch screen and running either Windows Mobile 5.0 or Palm OS. In an email dated 2007-04-04 DeLorme confirmed that Street Atlas USA 2007 contains what used to be called Street Atlas Handheld.

GlobalSat BC-337 Compact Flash GPS

review at Geekzone

at Amazon.com

at Semsons.com

Bicycles Combined with Amateur Radio (return to top)

(See Bicycling & Canoe Links for more links about bicycling.)

Bicycle Mobile Hams of America site & Yahoo! Club
GOBAHams.org (and alternate URL)

How to Wire a Bike for Ham Radio (PDF), by Bill Sharp, W8HI
Bicycles and Radios at ARRL, by Dick Arnold, AF8X
Bicycle-Mobile Antennas at ARRL
The Jurassic Duck--a 2m J-Pole antenna inside PVC, by WX2NJ
2m J-Pole by AA1EP
2m J-Poles by N6VNG
Bike 'n Hike Special antenna described by WB8ERJ
The Perfect HF Bicycle Mobile Antenna by Bonnie Crystal, KQ6XA on the HFPack Yahoo! Group (logon required)

Steven K. Roberts, N4RVE:

Nomadic Research Labs

Computerized Recumbent Bike Adventure

Winnebiko & BEHEMOTH Specs

Microship Wordplay and kayak Bubba

Shacktopus--BEHEMOTH in a pack, only more so

K2 Bicycle Mobile by N8MX
QRP Plus & K2 CW Bicycle Mobile by VE3JC
CW Bicycle Mobile by KB8U
HF Bicycle Mobile by N0LX, with FT-817
CW Bicycle Mobile - Field Day 2004 by KC4AUF, with Yaesu FT-900
Recumbant HF & VHF Bicycle Mobile by N1RWY
SGC-2020 Bicycle Mobile by NW7DX
SGC-2020 Bicycle Mobile by GØSBW
Bicycle Mobile by AF8X (2m FM and HF)
Bicycle Mobile, from a Beginner's Point of View by KD7S (20m CW)
Bicycle Camping Adventure and pictorial by AC6XK (HF CW)
IC-703 Bicycle Mobile by N0MLZ
W9XS Bicycle Mobile by Ron Baran--100-watt HF CW & SSB (and alternate URL)

Bicycle Mobile by K4MBE (2m FM)
Bicycle Mobile by N8AVR (gone?)
2m & CB Bicycle Mobile by VO1MDS
An article on 2m FM bicycle mobile by AA6WK
Bicycle Portable by K6WEB (2m FM)
Riding the Airwaves, bicycle mobile by KE4WMF (2m FM)
Mountain-Bike Mobile by N7QJP (2m/70cm FM)

Articles at BHMA (in JPG format):

"The Perfect HF Bicycle Mobile Antenna", by Bonnie Crystal, KQ6XA: pages 1 | 2

Mounting the Antenna on the Front of the Bike by Skip La Fetra, AA6WK

Dressing for Cold Weather Riding by Scott Farrell, KE4WMF

"Q-R-Pedaling - K2/Gary Fisher Style", by John Cumming, VE3JC: pages 1 | 2

"Double the Fun While QRP" by Scott Farrell, KE4WMF: pages 1 | 2

Ham Bike has HT, GPS, APRS, & Packet! by Dave Reed, WA1ZWG

Varner's "Coaxial Antenna" Easy to Build by Jim Varner, AE6N

Headset vs. SpeakerMike by Bob Murdock, WX2NJ

Indexes:

Antennas

Gear

Bits and Pieces

According to W8HI (link), a half-wave antenna wants to see feedline that's an odd multiple of 1/4-λ long. Three 1/4-λ is about 57" at 2m. Larson sells GBR-1 in this length with NMO on one end and BNC on the other.

Build a Bluetooth Headset:

Build a Bluetooth Headset by K7SFN & K7AGE video on YouTube

Jabra A210 Bluetooth interface

BlueParrott B150 Headset

Jawbone noise-canceling Bluetooth headset (might not handle wind-noise well: link)

Canoes / Kayaks Combined with Amateur Radio (return to top)

(See Bicycling & Canoe Links for more links about canoeing and kayaking.)

Kayaking the Grand Canyon with a K-1 by WB6ZFG
QRP + Kayak = Outdoor Adventure by W8BHK
QRP with a Sea Kayak by AA4XX
QRP with a "Catacanoe" in the Adirondacks by N2XE
Canoe-portable QRP, German-style
Guide to Canoe/Kayak-mobile QRP by AE3C
Kayak-Portable by WV9I
Rowboat HF Mobile by N0LX

(See also the sites by Steven Roberts, N4RVE, above.)

WD8RIF Two-Way QRP Worked All States (return to top)

States needed: Alaska, Hawaii, Kansas, Maine, Mississippi, Nebraska, North Dakota, Rhode Island, and Wyoming. (map generated at World66)

Miscellaneous (return to top)

Radio Amateur Education Society with The Art & Skill of Radio-Telegraphy course
RadioTelegraphy.net
K7QO Code Course
W1AW Morse Code Practice Files & archive, sorted by code speed

KØS Strange Antenna Challenge (new URL)

Moxon Antenna Project

Make-Your-Own Portable End-Fed Wire Antenna on a Spool, as discussed on QRP-L:

(The original QRP-L postings describing this are gone.)

a look at a commercial version at DWM

a dipole version is described (with photos) here, by AA2VK

a variation here on eHams

KD1JV's matched end-fed half-wave, with photos (at archive.org)

Ultra-light Antennas Based on a Panfish Pole by Bruce Grubbs, N7CEE
WA3WSJ Black Widow Vertical Antenna 20m, 30m, & 40m without a tuner

MiniBac antenna (Minimalist Backpacker Antenna System) by KQ6XA

Joe Everhart, N2CX, has had good luck using a Black-Widow supported 40m end-fed half-wave wire with counterpoise for QRP NVIS work. See January, 2000, QRP Quarterly

Portable Antennas by N0LX:

20' Toroid 20-30-40m with switchable band taps

shortened 20' half-wave vertical with toroidal loading coils

end-fed inverted-v for 17-20-30-40m

Dollar Store Special Antenna by WB3GCK

Sooper-Shooter by Robert Hightower, NK7M
The HyLaunch, Build a Compact, Integrated Antenna Launching System by Bill Jones, KD7S
Antenna Launching for Serious Practitioners by Russ Carpenter, AA7QU

B&W AP-10A & AP-10B Window/Balcony Portable Antenna; instructions: AP-10A | AP-10B

NVIS Ionospheric Map -- US (and tinyURL version)
75/60/40m NVIS Portable Antenna by W4CNG

55' Irrigation Pipe Push-Up Mast by Bob Bruninga, WB4APR

Build a Tiger Tail Counterpoise by W1CAR

VHF/UHF J-Pole:

2 Meter Half-Wave J-Pole Antenna from 450 Ohm Ladder Line (pdf)

The DBJ-2: A Portable VHF-UHF Roll-Up J-Pole Antenna (& correction) by Edison Fong, WB6IQN (pdf; ARRL QST Archives)

An Easy Dual-Band VHF/UHF Antenna by Jim Reyante, KD6GLF (pdf)

A Backpacker's Delight--The Folding J-Pole (& correction) by Michael Heiler, KA0ZLG (pdf; ARRL QST Archives)

Build a Weatherproof PVC J-Pole Antenna by Dennis Blanchard, K1YPP (pdf; ARRL QST Archives)

Tuning a Wire J-Pole Antenna (pdf; ARRL QST Archives)

N7VE SWR Indicator

A Bright Idea for Wrestling With SWR in the Field by Richard Fisher, about the N7VE SWR Indicator

The N7VE SWR Indicator/Bridge kit at Hendricks QRP Kits

Novice Historical Society
The Museum of Radio & Technology in Huntington, WVa
K2TQN's Old Radio and Radio History Website with QST Column additional items
The Xtal Set Society

CAT Repeater Controllers

Michael Burkhardt's W8MHB.com--download question pool; generate practice exams and flash cards

Amateur Radio Today video with Walter Cronkite (for purchase or 70MB download) at ARRL
Voice of Victory (1944): Part I | Part II at Internet Archive

Boat-Anchor Nightlight (PDF) by AD5X

LED Station Lights:

LEDs for Low Power Station Lighting Ideas by KB1DIG and KB1GTR

LED Circuit Tutorial

LED Current Limiting Resistor Calculator by Jani 'Japala' Pönkkö

(Look in Fall 2004 "QRP Quarterly" for more ideas on LEDlights.)

Anderson Powerpoles:

Correctly Install PowerPoles at West Mountain Radio

Anderson Powerpole Ideas by KB1DIG & KB1GTR

Powerpole Instructions by WB3W

West Mountain Radio--Powerpoles, crimp tools, and accessories

PowerWerx.com----Powerpoles, crimp tools, and accessories

Powerpole Polarity Tester by WB3GCK

More Fun with Powerpoles (PDF) by VE3FFK

Surface Mount Powerpole Connectors (PDF) by AD5X

Compact Voltage Conditioner/Fuse Assembly for 100-watt Transceivers (PDF) by AD5X

Powerpole Chassis Mount and Distribution Boards (zip) by W1GHZ

Emergency Power:

"Practical Battery Back-Up for Amateur Radio Stations" by George Thurston III, W4MLE:

Part 1: March, 1990 QST, pp. 34-37 (PDF ARRL Members Only)

Part 2: April, 1990 QST, pp. 32-35 (PDF ARRL Members Only)

Part 3: May, 1990 QST, pp. 25-27 (PDF ARRL Members Only)

"Emergency Power at W1ZR" by Joel Hallas, W1ZR: December, 2003 QST pp. 41-44 (PDF Members Only)

"Emergency Power at W1ZR" by Joel Hallas, W1ZR, Technical Correspondance: February, 2004 QST p. 82 (PDF Members Only)

Battery Manual at Power-Sonic
Battery University & Batteries in a Portable World by Cadex Electronics, Inc.
Batteries & QRP by AE5X
The Care and Feeding of Gel Cell Batteries by WB3GCK
Battery Care (PDF) at EMRG
12-volt Battery Case with Powerpoles (PDF) by VE3UNW

LED Voltage Monitor (zip) by W1GHZ

kits are available from WA3IAC;

cost is $15.95 each plus s/h of $2.00 for the first kit, $0.50 for each additional kit, First Class mail.

A Long Haul H-T Battery System (PDF) by Thurman Smithey, N6QX, at ARRL Archives

Note: Figure 2, Voltage Regulator circuit, has incorrect pin-out shown for LM317T

correct pin-out for TO-220 package is 1-Adjust, 2-Output, 3-Input

LM317T datasheets are available here

Three-Terminal Regulators by N0AX at Hands On Radio (PDF, Arrl Members Only)

Improved 9.6V Compact Fast Charger (PDF) by AD5X
Simple In-Line Current/Voltage Monitoring Fixture (PDF) by AD5X

BatteriesAmerica.com (and replacement packs for Icom)
NiCD Lady

WD8RIF has battery packs for Icom IC-2AT & IC-02AT handhelds:

BP-2 (converted into 9.6v NiCD R/C battery adapter)

BP-3 (one converted into DC-1 clone; two condition as-yet unknown)

BP-4 six-AA holder (qty 3) -- 9v with alkaline cells; 7.2v with NiCD/NiMH cells

BP-5 10.8v 450mAh NiCD (qty 2) dead

BP-7 13.2v 450mAh NiCD (qty 2) dead

BP-8 8.4v ???mAh (Mr. Nicad clone; condition unknown

BP-8sh 8.4v 1800mAh (Mr. Nicad clone; condition unknown

DC-1 10v DC-converter for IC-2AT (qty 4)

IC-8 eight-AA holder -- 12v with alkaline cells; 9.6v with NiCD/NiMH cells (qty 4)

WD8RIF has a Maha MH-C801D smart-charger for NiCD/NiMH AA/AAA cells.

Notes on AA cells:

Zinc-Carbon AA cells are nominally 1.5v at 400mAh to 900mAh.

Alkaline AA cells are nominally 1.5v at 1700mAh to 3000mAh; high internal resistance causes capacity to drop as load current increases.

Nickel-Cadmium (NiCd) are nominally 1.2v 700mAh to 1100mAh.

Nickel-Metal Hydride (NiMH) are nominally 1.2v 1650mAh to 2700mAh.

NiMH cells self-discharge in about 15 days; NiCD cells self-discharge in 30 to 60 days. (source)

Panasonic Oxyride AA cells:

1.7v initial voltage

2x to 3x longer battery life than with alkalines in high-current use

cost is comparable to alkaline

Looks very good for HTs and power-packs for portable HF

Oxyride at wikipedia

Can a New Disposable Battery Change Your Life? Parts of It, Maybe. at NY Times

New Consumer Primary Battery Chemistry Introduced After a 40-Year Dryspell

Panasonic Oxyride Editorial Review -- The Revolution in Battery Power at techlore.com

Quantaray Super Z by PowerGenix (Nickel-Zinc):

1.6v, 2000mAh

PowerGenix

Nickel-Zinc Rechargeable Batteries Make Their Debut

Quantaray Super Z Rechargeable Battery Features PowerGenix Technology