1.0.1 / July 22, 2013
(3.0/5) (4)

Description

Are you on a ship? Do you need to be able to receive up to dateweather and marine safety transmissions?NAVTEX Decoder lets youview NAVTEX marine weather transmissions on your Android device.Just set it near a radio (or for better quality decoding, connect acable from the radio's audio output jack to the microphone jack),tune in a NAVTEX frequency, and watch the transmissions.NAVTEXweather and marine safety messages are transmitted from dozens ofsites around the world. Now you can display these messages withoutbuying a dedicated NAVTEX receiver.Most NAVTEX transmissions are on518 kHz. If you tune in to NAVTEX via USB mode, set your radio to515.8 kHz USB, set the frequency in the app to 2200 Hz, turn offinvert mode, and when the next scheduled transmission begins,NAVTEX pad will start decoding.

App Information NAVTEX Decoder

Black Cat Systems Show More...
NAVTEX Decoder 1.0.1 APK
Are you on a ship? Do you need to be able to receive up to dateweather and marine safety transmissions?NAVTEX Decoder lets youview NAVTEX marine weather transmissions on your Android device.Just set it near a radio (or for better quality decoding, connect acable from the radio's audio output jack to the microphone jack),tune in a NAVTEX frequency, and watch the transmissions.NAVTEXweather and marine safety messages are transmitted from dozens ofsites around the world. Now you can display these messages withoutbuying a dedicated NAVTEX receiver.Most NAVTEX transmissions are on518 kHz. If you tune in to NAVTEX via USB mode, set your radio to515.8 kHz USB, set the frequency in the app to 2200 Hz, turn offinvert mode, and when the next scheduled transmission begins,NAVTEX pad will start decoding.
Shortwave Broadcast Schedules 1.3 APK
Are you a shortwave radio listener (SWL) in need of an up to dateset of schedules for international broadcast stations? ShortwaveBroadcast Schedules is a handy app that displays broadcastschedules of over 10,000 longwave, mediumwave, and shortwavebroadcast stations.The stations are listed in order by frequency.You can search to see which stations are on the air right now, aswell as search for stations by name, frequency, time of day thatthey are on, or country. In addition to scrolling the list, you canalso immediately jump to any of the standard broadcastbands.Stations currently on the air are displayed in bold stations,other station listings are dimmed, making it quick and easy to seewhich stations are on right now. Touch a station to bring up moreinformation about the station, such as the country of origin,target area, and programming language.There's an Update feature;the app will check to see if there is a more recent version of theschedule. If so, it will be downloaded and installed. You need aninternet connection for this to work, of course.Get your copy ofShortwave Broadcast Schedules, and never miss another of yourfavorite stations again.
ACARS Decoder 1.0 APK
Want to display ACARS transissions, without using a bulkycomputer?ACARS Decoder lets you view ACARS transmissions on yourandroid device. Just connect it to a VHF radio (or even set it nextto the radio's speaker), tune in an ACARS frequency, and watch thedecodes. Decodes can be automatically saved to an acars.txt file onyour device's SD card or other memory by enabling the Logbutton.Leave the radio's squelch open so you have static all thetime, and tune to one of the ACARS frequencies:131.725 MHz ACARSPrimary channel for Europe 131.525 MHz ACARS Tertiary channel forEurope 136.900 MHz ACARS Channel logged near London 131.550 MHzACARS Primary channel for North America 130.025 MHz ACARS Secondarychannel for North America 129.125 MHz ACARS Tertiary channel forNorth America 131.475 MHz Company channel for Air Canada and someEuropean airlines in North America 131.125 MHz ACARS channel localto ORD so far 131.550 MHz ACARS Primary channel for Asia/Pacific131.450 MHz ACARS Primary channel for Japan 130.450 MHz OverflowACARS channel in use in the Washington, Boston, Chicago, and DFWareasBuy your copy right now, and start decoding and displayingACARS transmissions in minutes.
HF Weather Fax 1.0 APK
Do you want to get your weather charts without using an internetconnection or a dedicated computer?HF Weather Fax lets you receivemarine weather radiofascimile transmissions on your Android device,using the audio from your HF marine radio. Just set it next to theradio's speaker or headphones, tune in a weather fax frequency, andwatch the images come in.HF Weather Fax is perfect for mariners whowant to be able to view the latest weather reports andforecasts.Received fax images can be manually or automaticallysaved, and viewed later.Buy your copy right now, and start decodingand displaying weather fax transmissions in minutes.
Selective Calling Generator 1.5 APK
Generates Selective Calling Tones. Select your tone type from theextensive selection of available modes, then touch the button foreach tone you wish to send. You can even queue up tones and havethem sent in a burst, if you wish. The following tone types can begenerated:DTMFCCIR1CCIR7PCCIREIAEEACCITTEURONATELVDEWMODATZVEI1ZVEI2ZVEI3PZVEIDZVEIPDZVEIICAOCTCSSCODANSelectthe mode you wish to use from the menu. Then tap the button foreach tone you wish to generate.If you turn the Live toggle button,you can queue up several tones (they will be displayed above) andthen turn the toggle button back on to play them.In CTCSS mode,touch the button for the tone that you wish to continuouslygenerate.In CODAN mode, enter in the Call and Send IDs, select themessage priority, and tap send.Memories are available for storingselective calling sequences. Tap the menu button for your device,then select Memory. Tap an existing memory entry to edit or playit, or tap the menu button again for the option to add a new one.When editing an entry, you can tap Send to have it played. In Codanmode, the memory value will be transferred to the Call field, youwill need to tap Send from the Codan screen to send it.For many ofthe tone modes, you can alter the default tone and inter-tone (gap)periods, which are in milliseconds, to customize them.
DGPS Decoder 1.1 APK
This app can decode DGPS (Differential Global Positioning System)beacon transmissions. DGPS stations transmit the difference betweenpositions indicated by GPS satellite systems and the known fixedposition of the station. This allows higher accuracy. DGPStransmissions are 100 or 200 baud and are transmitted onfrequencies from 285 kHz to 325 kHz. Hundreds of these stations areoperated by the Coast Guard and other agencies, and they can beinteresting DX targets.To use this app, you need a radio that cantune the correct frequency range, either in SSB or CW mode. Most“shortwave radios” can do this. Ideally you use a cable to feed theaudio from your radio into your device, but you can also place theradio speaker near your device’s microphone, or even better yet,plug earphones into the radio, and place them next to the device’smicrophone. You may need to experiment to get the best qualityaudio pickup, without any outside noise or distortion.To decode thetransmission, tune your radio to a DGPS frequency. You can eithertune directly to the frequency in CW mode, in which case you setthe center frequency in this app to frequency of the tone producedby your radio in CW mode, usually close to 800 Hz, or use USB mode,tune 1 kHz low, and set the center frequency in this app to 1000Hz. To assist with practice in setting up the app to decodetransmissions, you may wish to first try decoding this recordedDGPS station, set the app for 200 baud and a center frequency of1000 Hz: http://www.blackcatsystems.com/ipad/DGPS.WAVThe appdisplays an audio spectrum signal plot, the green bars on a blackbackground. Also on this plot, the baud rate and center frequencyare displayed on the left and right sides, respectively. Abovethis, there are several buttons. You’ve likely already figured outthat the Help button brings up these instructions. Next to that isthe baud rate button, tapping it toggles between 100 and 200 baud.Next to that are the - and + buttons, they change the centerfrequency. Finally there is a volume indicator. Ideally the inputvolume should be between about half way and three quarters. You canalso change the baud rate by double tapping on the spectrum, andadjust the center frequency by swiping left and right.When you wantto decode a DGPS transmission, select the baud rate, and feed audiointo your device. If you don’t know the baud rate, try one speed,then the other. 100 baud transmissions have a more narrow bandwidththan 200 baud, eventually you can learn which is which by observingthe spectrum display.Eventually, if you have tuned into a DGPStransmission that is strong enough, you will start seeing decodemessages printed.A typical decoded message looks likethis:[23:24:00 08/08/16] 806 12 13 289.0 kHz Driver, VA UnitedStates 36.9633 -76.5622 306.61 km 172.711 degFirst the current UTCdate and time are printed in brackets.Then the station ID, 806 inthis case, as well as the two reference IDs, 12 and 13 in thiscase.That is followed by the assigned frequency, 289.0 kHz for thisstation. You can compare this value to what your radio is tuned to,they should match. If they don’t, then ignore this message, as itwas incorrectly received. With weak signals, it is common toreceive incorrect messages, because static or other interferencehas corrupted some of the bits. Just ignore them. The location ofthe station is then displayed, the city, state, and country,followed by the station location.Then the distance and bearing tothe station is displayed, providing you have correctly set yourlocation in the app.
Radiation Map Tracker 1.0 APK
Concerned about nuclear radiation levels, due to fallout fromdamaged nuclear reactors, nuclear tests, or other events? RadiationMap Tracker connects to our extensive network of constantlyupdating, real time, nuclear radiation detectors, all run byvolunteers, not government agencies. This app lets you determinewhat levels of radiation are being reported at various locationsaround the world. You can scroll around the map and zoom in onreadings. Readings are continuously updated every few minutes. Itdisplays the current ionizing radiation reading from thesedetectors on an easy to use world map, in uR/hr, one of thestandard units of measurement for radiation. Typical background(naturally occurring) radiation values near sea level are in the 10to 20 uR/hr range. Higher readings naturally occur at higherelevations due to cosmic rays from outer space.Buy a copy ofRadiation Map Tracker, and you'll never be in the dark aboutnuclear radiation levels again.
Wire Calc 1.2 APK
Need to calculate the electrical resistance or voltage drop of awire or cable? Wire Calc can do this, and more.Enter in the lengthof the wire (using English or Metric) units and the gauge, selectthe type of wire (Copper or Aluminum) and WireCalc computes theresistance. Enter in the current, and the voltage drop is alsocomputed.There is also a table of all wire gauges from 0000000 to50, with the diameter, area and resistance listed, for quicklookup.
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