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Arquitectura

Colegio de Arquitectos de Puerto Rico 

Periferia - Recursos investigativos de arquitectura.

Amateur Radio Satellites

The Radio Amateur Satellite Corporation

Jerry, K5OE: Home Brew Amateur Antennas - This page has the design for my favorite handheld 70cm beam and the Eggbeater-II.

Home Brew Amateur Satellite Equipment - Photos and more interesting antenna projects.

The "real man's arrow antenna" - XE1MEX is Alejandro Díaz González Ulibarri from Mexico and he is responsible for inducing me to build my handheld monster. Jerry is responsible for linking to his page!

Astronomía

Stellarvue

AstroMart Equipos usados de astronomía a la venta.

Astrophotography by Jerry Lodriguss

Color QuickCam Images

Adirondack Video Astronomy Page

Celestron International

Cookbook CCD Home Page

Dave's Astronomy Page (QuickCam)

Wesner's Mighty ETX Site

How to build a Dobsonian Telescope

Mall astrophotography

Meade Instruments

Orion Telescopes and Binoculars

Pocono Mountain Optics

ScopeTronix Products

SEDS Messier Database

Sky and Telescope Magazine

Sociedad de Astronomía de Puerto Rico

Telescope Review Master List

Radioaficionados

QRZ.COM- Para busacar información de otros radioaficionados.

Logsat.com - Satélites de radioaficionados. Aquí encuentras los elementos Keplerianos.