DXZone.com

Top Amateur Radio Websites - Issue 2229

50 MHz Omnidirectional antenna, Foldable Yagi Antenna, End-fed 6-meter Zepp, Digirig Mobile, How to Make an Automatic 12V Battery Charger, OTRSP Antenna Selector, TNXQSO.com , Z21RU Log Online,

Satellite Frequency List

Operating Modes/Satellites
All Satellites Frequency List Update. A complete list of satellite frequencies available in several formats, including info on Satellite Uplink and Downlink frequencies Beacon, operative Mode, Callsign and Weather sat functionality.

Top Amateur Radio Websites - Issue 2232

ICOM IC 7300 mods, A simble Attic Antenna for HF bands, Pedestrian Mobile BackPack, HF Receive Antenna, Small HF RX Loop, A RemoteQth Cable Adapter for Prosistel Rotator, Kenwood TS-680S Mod

Top Amateur Radio Websites - Issue 2231

40m center loaded vertical antenna, Coax Dipole for 2 meters band, 20m 30m 40m Bandpass Filters, SteppIR UrbanBeam Review, QTHnow, VA6AM Contesting Accessories, ANjo Antennen

Top Amateur Radio Websites - Issue 2230

Controlled Antenna Switch, Kenwood TS-990S Review, EPS Antennas, Voice Keyer for the backpack, Portable VHF UHF Dipole Antenna, Testing End Fed Long Wire Antenna, WSJT-X and Raspberry Pi,

ICOM IC-R20

IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.

World Time Zone

Operating Aids/Time
World Time Zone is an online quick reference chart that displays the world time zones in detail. DST is also indicated by yellow markers on the map. UTC difference is marked with different colors, and if you point and click will show up area details

Random Wire Antenna Lengths

Antennas/Wire
When on the trail, at Field Day, or whenever a good antenna is unavailable, a random wire can save the day, but it is important to understand its properties.

SatNOGS Satellites List

Operating Modes/Satellites
SatNOGS DB is an effort to create an hollistic, unified, global database for all artificial objects in space (satellites and spacecrafts). You can view and export the data, contribute to it, or even connect your application using API.

Helical Antennas for 144 MHz

Antennas/Helical
This article is about two excellent small helical antennas for the two meters band. With performance close to that of full sized antennas, these small helical antennas are low in profile but high in efficiency.

Top Amateur Radio Websites - Issue 2227

DXCenter DX Cluster, Bandpass Filter Calculator, FT8 Chat, Arduino Flex Controller, Contest Log Analyzer, N3TUQ DX Maps, ICOM IC756 Fan Modification,

W0CW Kansas City DX Club

Ham Radio/Clubs/North America/USA/Kansas
Established in the mid 1970's The Kansas City DX Club is an ARRL-affiliated amateur radio club open to anyone interested in DX or contesting. Our club callsign is W0CW. Many of our club members are from the Kansas City metropolitan area, on both sides of the Missouri/Kansas state line, but our roster also includes members from all over the United States.

Blocking Dynamic Range in Receivers

Technical Reference/Receivers
An explanation of the different procedures and definitions that are commonly used for blocking dynamic range (BDR) measurements. Dynamic range in general is the ratio between the weakest signal a system can handle and the strongest signal the same system can handle simultaneously without an operator switching attenuators or turning volume potentiometers