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ISS
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Antennas : Feed Lines
- Transmission Lines
- Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
[Hits: 1025 | Votes: 0 | Rate: 0.00] - Transmission Lines
- Articles on SWR measurements and feed lines tuning.
[Hits: 885 | Votes: 0 | Rate: 0.00] Ham Radio : Clubs : Australia
- Auckland ATV Group
- The ATV User's Group is a subgroup of the Auckland VHF Group, Club call ZL1BQ, compromising of persons interested in the transmission and reception of Amateur Television
[Hits: 569 | Votes: 0 | Rate: 0.00] Ham Radio : Clubs : North America : USA : Iowa
- GRARC Ham Radio club
- The club is located in Dubuque Iowa, on the banks of the Mississippi River.We are active in the American Red Cross and various community events.
[Hits: 381 | Votes: 4 | Rate: 7.50] Ham Radio : Clubs : North America : USA : Ohio
- Newark Amateur Radio Association
- The mission of this Association is to foster and promote the hobby of Amateur Radio, to provide repeater systems for the Amateur Radio community, to provide public service and emergency communications when needed, to provide education for licensing, and to provide a forum for members to meet and exchange information, share experiences, and socialize with one another.
[Hits: 418 | Votes: 4 | Rate: 8.00] Manufacturers : Accessories
- CW Buffer, Amplifier & Preamp Sequencer
- The AMPSEQUENCER board is an advanced microprocessor driven control board specifically designed to buffer CW key signals while switching the amplifier to transmission, it can also be used to provide proper TX delay timing for RTTY and Pre-Amplifier proper sequencing
[Hits: 912 | Votes: 0 | Rate: 0.00] Operating Modes : Amateur Television
- Fax480
- FAX480 was developed to provide for relatively high resolution image transmission on HF, VHF, and UHF amateur radio bands. FAX480 was designed to bridge the gap between conventional slow scan television (SSTV) and conventional facsimile techniques.
[Hits: 387 | Votes: 1 | Rate: 6.00] Operating Modes : DSP
- PSK63
- A super-fast PSK mode for RTTY Contesting, 100 wpm character transmission speed for contest exchanges and macro transmission versus RTTY at 60 wpm
[Hits: 1297 | Votes: 1 | Rate: 10.00] Operating Modes : International Space Station Operating Modes : Satellites : Real Time Tracking
- Show ISS with Google Maps
updated
- Shows you where the ISS is currently located
[Hits: 701 | Votes: 4 | Rate: 3.50] - Real Time Satellite tracking
pop
- Select your favorite satellite and watch its trajectory on Google Maps in real time! Includes ISS tracking, Weather, Geostationary, GPS Military, and of course Amateur radio satellites
[Hits: 20355 | Votes: 58 | Rate: 5.51] Radio Scanning : Regional : USA
- Missouri/Kansas Scanner Radio
- Provides comprehensive frequency listings for various public safety agencies and private organizations who operate across the Kansas and Missouri Region.
[Hits: 8956 | Votes: 58 | Rate: 6.96] Shortwave Radio : Numbers stations Shortwave Radio : Schedules Software : ACARS
- Acarsd
- acarsd is an ACARS decoder for a LINUX or Windows PC which attempts to decode ACARS transmissions in real-time using up to three Soundcards. acarsd is also a realtime ACARS Server, for the worldwide spotter and ACARS community.
[Hits: 9090 | Votes: 19 | Rate: 6.88] Software : APRS
- APRS-Beacon
- The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)
[Hits: 2155 | Votes: 5 | Rate: 2.80] Software : Antenna analysis
- Smith Chart Software
- SimSmith is a highly interactive, real time Smith chart graphing program. Circuits are constructed using drag-n-drop. Load files can be imported from the EZNEC and CocoaNEC antenna simulation software and from the AIM4170 and miniVNApro antenna analyzers. Circuits and load files can be of any size.
Key Features: SimSmith is one of the few Smith chart packages which models transmission line losses. SimSmith also allows the description of circuit elements using algebraic equations. SimSmith has only one screen and allows the screen to be resized to increase workspace or readability.
[Hits: 323 | Votes: 1 | Rate: 6.00] Software : DX Cluster
- Konfabulator - DX Cluster
Priority listing
- Freeware windows XP and MacOSX konfabulator widget dedicated to Amateur radio operators, is an easy interface to DX-Summit the ham-radio DX Cluster.
DX cluster spots represents live ham radio communication connections, and are an invaluable resource for amateur radio operators. Users can choose Bands or operating modes like digital emissions, QRP IOTA and more. Spots are refreshed automatically and refresh rate can be set by users, with a minimum of 100 seconds.
[Hits: 1473 | Votes: 2 | Rate: 9.00] Software : Digital SSTV
- DigiACE
- DigiACE is an experimental Digital SSTV system.
The latest version is posted as DigiACE.zip
DigiACE uses the RDFT transmission system with some enhancements
[Hits: 1653 | Votes: 1 | Rate: 7.00] Software : Satellite tracking
- Satbuster
- SATBUSTER for Windows is especially designed for satellite visual observers and trackers. Its users, mainly amateur astronomers and radio amateurs, appreciate both the accuracy and the simple to use graphical interface.The software is aimed to hobbysts. However a growing number of plain folks are starting to use this tool to recognize and look at the International Space Station and the Space Shuttle during its missions too
[Hits: 1823 | Votes: 1 | Rate: 1.00] - Satel939
- This program allows the pursuit of satellites in real time or in wished dates as well as the forecasts of passage and the visiblity between satellites. Three lists of 15 satellites, choiss among 50 in memory
[Hits: 1061 | Votes: 4 | Rate: 9.25] Technical Reference : Coax Cables and Connectors
- RF Coaxial Connectors
- RF coax(ial) connectors are a vital link in the radio spectrum. Coax connectors are often used to interface two units such as the antenna to a transmission line, a receiver or a transmitter. The proper choice of a coax connector will facilitate this interface.
[Hits: 3379 | Votes: 0 | Rate: 0.00] Technical Reference : HF Radios
- ICOM IC-746PRO Dead TX
- The purpose of this web page is to try to investigate the ICOM IC-746PRO Dead TX problem reported by many radio amateurs through out the world; and unfortunately not properly taken care of by ICOM. If you are the owner of either the ICOM IC-746PRO or the IC-7400 you may already have experienced the Dead TX Issue. If not you may sooner or later.
[Hits: 2952 | Votes: 5 | Rate: 9.20]
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