maps usa

G5RV antenna project by F5JTZ - Yet another G5RV antenna plan to build a G5RV Antenna for 80 to 10 meters usage

Why Radials ? - Butternut article on radials usage on vertical and ground plane antennas

Multiband HF Vertfical Antenna - A vertical antenna that can cover HF bands using an UN UN and a fishing pole, usage of tuner is requested.

Ham Radio Contest Maps - US Contesters maps generated based on ARRL online score data by WM5R

LU9DA DX Cluster maps - Display maps of current dx spots per each band

Irish Lighthouses - lighthouses and lightships of ireland and northern ireland with arlhs reference numbers for all irish lights

W7ASC Center for Amateur Radio Learning - C.A.R.L. is the Center for Amateur Radio Learning located within the Arizona Science Center. Our goal is to expose the thousands of visitors who visit the Arizona Science Center each year to the hobby of amateur radio.

K7LHC London Bridge Amateur Radio Club - Lake Havasu City Arizona USA

HARC-AZ - Hualapai Amateur Radio Club - The Hualapai Amateur Radio Club is located in Kingman, Mohave County, Arizona, USA (DM25xf).

K8DAA Holland Amateur Radio Club - Holland, Mi USA

KC8BRS Four Flags Ham Radio Club - Niles, Michigan USA

Rodeo City Radio Club - Ellensburg, Kittitas County, Washington, USA

Radio Amateur Maps - Collection of world wide radio amateur maps by SP8DA

Google and APRS - N6BG site using google maps api to show APRS data

Amateur Radio Repeaters Maps - Amateur Ham Radio Repeater in Google Maps. View by state or specific location.

Live Repeater Stream in Okemos, MI - Listen Live to the 145.390 Repeater in Okemos, MI, USA. Stream provided by the Central Michigan Amateur Radio Club,KD8AYM and WX8BEN

NVIS Propagation maps - Maps and propagation indices

Understanding propagation numbers - Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities

Cb Radio USA - Cb radio store online offer variety of Cobra Cb radios for sale for you to choose from.

iQSL USA - QSL card printer from Niagara Falls, NY

KB3IFH QSL Cards - QSL Printer shop, products include Photo QSL cards, Eyeball cards, and State QSL Cards, based in Hampstead, MD USA

CallBook for iPhone - CallBook is an Amateur Radio application that allows you to look up call signs via the free WM7D server, the QRZ Online subscription service or the HamCall subscription server and track active APRS stations on www.aprs.fi. Lookup results can be emailed and the QTH can be instantly viewed in the Maps application

Power Gride Tubes - Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.

Battery Equivalents - Cross reference thousands of consumer, watch and Amateur Radio Handheld batteries

Datasheet Archive - Search engine for electronic component datasheets and application notes.