ZeroFive Antennas produces vertical antennas for HF:
The Multi-Band Vertical is a 43' (forty-three foot) vertical element with no traps, or coils, it is a non-loaded radiator made with 6063 T832 commercial drawn aluminum tubing.
The 40 meter full size 1/4 wave vertical is a 34 ' (thirty-four foot) vertical with an adjustable height between 30 and 34 feet. Hand made with 6063 T832 commercial drawn aluminum tubing
20 meter 1/4 wave vertical
The 80 meter vertical antenna is an adjustable 60 to 66 feet high vertical element with no traps, or coils. This antenna must be guyed at the 30' foot level and the top. Hand made from 6063-T832 commercial drawn aluminum tubing

K9CT personal site - ham radio tower antenna project and pictures.
US Tower HDX589 motorized telescoping tower to 89 feet.
MonstIR 40 - 6 meter Tuneable Antenna fed with LMR 400/UF at 90 feet

QSL Maker by WB8RBR is a free Windows software program that allows hams to design their own QSL cards and print them on inkjet or laser printers. Users may layout QSL fields such as RST, Callsign, Power, QTH, Name, and more. Additionally, images may be easily imported to the card design.

Heights Tower produces towers and accessories for the ham market.

9:1 balun construction

Aluma Tower Company. lightweight aluminum towers made in Florida.

4:1 balun for 160 to 10 meters

Tashjian Towers offers commercial and amateur towers that crank up, are guyed or are self-supporting. Various tower wind load capacities are available. Many models originate from the old Tri-Ex company.

Meteor scatter discussion, spots, scheds, Terrestrial links, EME ...

Octavia QSL card printing and maps

Antennas and Grounds for Apartments
ARRL 1980 article on ham radio antennas and grounds for apartments. From QST.

80M Vertical Antenna with Capacitance Hat

Interesting analysis and design of a wire vertical antenna design for 80 meters with a wire cap hat.

80M 2 ELEMENT QUAD
The 2 element QUAD for 80 meters with 40-ft front to back spacing and the top of the diamond at 125-ft. VE3GK

Copper 1/2 wave Colinear 2m J-Pole. Tips/pics.

Amateur Ham Radio Store for HF, VHF, & UHF Communications products

Vanity call lookup, QSL card creator, duplicate license creator, license certificate creator, cw weight analyzer, hams listed by zip code and more.

Details of a six band windom antenna that covers several ham radio bands 80, 40, 20 15, and 10 meters (and 17 and 2). Balun instructions, theory and performance information also available - K3MT.

Software for remote station control and monitoring.

This article describes the construction of a 20 meter J-Pole ham radio antenna. K6AER used a fifty-foot TV push up mast, schedule 40 PVC insulators for standoffs, 12 gauge wire for the matching section and a wooden post.

40-Meter Wire Moxon Rectangles W4RNL

Site devoted to AM and Vintage radio

KB1DIG - J-Pole inside PVC

Summary of experience with restricted space antennas
Case 1: 10m dipole in attic
Case 2: 40m twin lead Marconi in attic
Case 3: Triband inverted V dipole under the eaves
Case 4: 10m dipole in attic

From the author's website: DXSoft
A program to decode morse code (CW) via sound card to text. It can work as narrow-band sound DSP-filter also. No additional hardware required — you need only receiver and computer (5x86-133 or better) with a sound card. Can integrate with AALog logger. It is a software morse decoder that really work!

Penninger Radio has a portable base system, mast clamps, and other antenna accessories.