Premium USB RTL-SDR w/ 0.5PPM TCXO Metal Case SMA R820T2 RTL2832U

Software Defined Ratio Premium USB RTL-SDR w/ 0.5PPM TCXO Metal Case SMA R820T2 RTL2832U

1. This is a new generation of software defined radio receiver RTL-SDR with RTL2832 ADC chip, 1 PPM TCXO, SMA F connector and aluminum case with passive cooling.
2. Music from 25 MHz to 1760 MHz bandwidth.
3. Perfect for use as a radio scanner with free computer based software such as SDR, HDSDR, SDR-Radio, Linrad, GQRX or SDR Tap on Android.
4. Works on Windows, MacOS, Linux, Android and even embedded Linux computers for Raspberry Pi.
5. Great for many applications including general radio scanning, air traffic control, public safety radio, ADS-B aircraft-radar, AIS boat-radar, ACARS, trunked radio, P25 / MotoTRBO digital voice, POCSAG, weather balloons, APRS , NOAA meteorological satellites APT, Meteor M2 satellites, radio astronomy, meteor scatter monitoring, DAB, or for use as a low-cost panadapter with a traditional ham radio.
6. This model adapted new solution ADC RTL.
7. It uses the improved tuner, comes with a 0.5 PPM TCXO (no drift and precise adjustment with an initial offset of 1 PPM and 0.5 PPM temperature deviation), improved component tolerances and an SMA connector.
8. It requires a USB 2.0 port and works on most USB 3.0 ports (note that we can not guarantee this to work on all USB 3.0 ports, make sure your PC has a USB 2.0 port just in case).

1. Fully assembled and ready for use.
2. Aluminum cabinet.
3. Small plate size.
4. 25 MHz to 1760 MHz, operating frequency.
5. Copper VHF & UHF bands from 25 MHz-1760 MHz.
6. AM, NFM, FM, DSB, USB, LSB and CW reception modes.
7. 5 PPM TCXO temperature compensated.
8. SMA antenna gold connectors is also more durable and has low insertion losses.




What is RTL-SDR?

RTL-SDR is a  USB dongle that can be used as a computer based radio scanner for receiving live radio signals in your area (no internet required). Depending on the particular model it could receive frequencies from 500 kHz up to 1.75 GHz. Most software for the RTL-SDR is also community developed, and provided free of charge.

The origins of RTL-SDR stem from mass produced DVB-T TV tuner dongles that were based on the RTL2832U chipset. With the combined efforts of Antti Palosaari, Eric Fry and Osmocom (in particular Steve Markgraf) it was found that the raw I/Q data on the RTL2832U chipset could be accessed directly, which allowed the DVB-T TV tuner to be converted into a wideband software defined radio via a custom software driver developed by Steve Markgraf. If you've ever enjoyed the RTL-SDR project please consider donating to Osmocom via Open Collective as they are the ones who developed the drivers and brought RTL-SDR to life.

Over the years since its discovery RTL-SDR has become extremely popular and has democratized access to the radio spectrum. Now anyone including hobbyists on a budget can access the radio spectrum. It's worth noting that this sort of SDR capability would have cost hundreds or even thousands of dollars just a few years ago. The RTL-SDR is also sometimes referred to as RTL2832U, DVB-T SDR, DVB-T dongle, RTL dongle, or the "cheap software defined radio".

There are now many other software defined radios better than the RTL-SDR, but they all come at a higher price. Currently we think that the Airspy ($169) and SDRPlay ($99) SDR's are the best low cost RX only SDR's. There is also the HackRF ($300USD) which can both transmit and receive.

What is Software Defined Radio?

Radio components such as modulators, demodulators and tuners are traditionally implemented in analogue hardware components. The advent of modern computing and analogue to digital converters allows most of these traditionally hardware based components to be implemented in software instead. Hence, the term software defined radio. This enables easy signal processing and thus cheap wide band scanner radios to be produced.

What are some RTL-SDR Radio Scanner Applications?

The RTL-SDR can be used as a wide band radio scanner. Applications include:

Furthermore, with an upconverter or V3 RTL-SDR dongle to receive HF signals the applications are expanded to:

  • Listening to amateur radio hams on SSB with LSB/USB modulation.
  • Decoding digital amateur radio ham communications such as CW/PSK/RTTY/SSTV.
  • Receiving HF weatherfax.
  • Receiving digital radio mondiale shortwave radio (DRM).
  • Listening to international shortwave radio.
  • Looking for RADAR signals like over the horizon (OTH) radar, and HAARP signals.

Note that not all the applications listed may be legal in your country. Please be responsible.

What is the RTL-SDR frequency range?

This is dependent on the particular tuner variant used in the dongle, and the particular implementation. Some dongles, like our RTL-SDR Blog V3 also utilize the direct sampling mode which can enable reception below 28 MHz.

TunerFrequency rangeElonics E400052 – 2200 MHz with a gap from 1100 MHz to 1250 MHz (varies)Rafael Micro R820T/224 – 1766 MHz (Can be improved to ~13 - 1864 MHz with experimental drivers)Fitipower FC001322 – 1100 MHzFitipower FC001222 – 948.6 MHzFCI FC2580146 – 308 MHz and 438 – 924 MHz (gap in between)

Table Source: Osmocom

As you can see from the table, the Elonics E4000 and Rafael Micro R820T/2 dongles have the greatest frequency range.

What is the RTL-SDRs sample rate?

The maximum sample rate is 3.2 MS/s (mega samples per second). However, the RTL-SDR is unstable at this rate and may drop samples. The maximum sample rate that does not drop samples is 2.56 MS/s, however some people have had luck with 2.8MS/s and 3.2 MS/s working well on some USB 3.0 ports.

Dropped samples are okay if you are just visualizing the spectrum, but will cause problems if you want to demodulate/decode signals.

What is the RTL-SDR's ADC resolution?

The native resolution is 8 bits, but the Effective Number of Bits (ENOB) is estimated at ~7. Decimation in software may raise this value.

What is the RTL-SDR input impedance?

Since these dongles are intended for TV, most dongles will have an input impedance of approximately 75 Ohms, although it is unlikely to be exactly 75 Ohms over the entire frequency range.

Remember that the mismatch loss when using 50 Ohm cabling on a 75 Ohm input will be very minimal at less than 0.177 dB.

The 75 Ohm impedance for the R820T can be checked on the datasheet which can be downloaded here.

However, newer dongles that come with SMA connectors will be 50 Ohms.

What are the minimum PC requirements?

Generally, at least a dual core processor of some sort will be required for most general GUI based software defined radio software. Command line tools and ADS-B decoders may work with less powerful hardware. Single board PCs like the Raspberry Pi 3, and Android mobile devices can also run several applications.

What dongle should I buy?

The cheapest, most common and generally best performing dongle at the moment is the Rafael Micro R820T2. It can be bought for about $20 USD.

The Elonics E4000 used to be the most common, but Elonics has closed and ceased chip production, making the E4000 rarer and much more expensive these days. Note that there seems to be a misconception that the E4000 is better than the R820T2 because it costs more - this is not the case, the increased cost is only due to its rarity.

The R820T2 is generally regarded as having better performance and sensitivity for most interesting frequencies compared to the E4000. For ADS-B, the R820T2 is much more sensitive at 1090 MHz. There are now also the R820T2 dongles, which offer increased sensitivity over the R820T. For these reasons, the R820T2 is currently the recommended dongle, unless you need the higher frequencies that the E4000 provides and are willing to pay a premium price.

Be careful when buying a dongle as certain sellers tend to misrepresent their devices (knowingly or unknowingly) as having compatible tuners, when in fact they may send out a device with an incompatible tuner. Also be wary when buying E4000 dongles from auction sites as there are many dodgy sellers incorrectly advertising R820T2 dongles as the rare E4000.

See our RTL-SDR store page for more information about where to obtain dongles from reputable sources. We now sell our own "RTL-SDR Blog V3" dongles which come with several key improvements for the SDR crowd and we recommend these for users who want to mainly use their dongle for SDR.

I already have a USB TV Tuner, is it Compatible?

If your TV tuner contains an RTL2832U chip it is probably compatible. If it does not contain this chip, it is not compatible. A list (somewhat out of date) on compatible and incompatible tuners can be found on this reddit wiki page.

Who owns RTL-SDR?

No person or company owns RTL-SDR and all it's supported software and hardware in it's entirety. However, it was the combined efforts of Antti Palosaari, Eric Fry and Osmocom (in particular Steve Markgraf) who first discovered that certain TV dongles could be used for SDR. Osmocom in particular developed the first RTL-SDR driver which was released as open source.

Since then RTL-SDR has become a community based phenomenon. Certain companies such as us at RTL-SDR Blog have taken it upon ourselves to produce our own flavor of RTL-SDR dongles that perform better than the standard TV dongle. But none of it is possible without the wider community development behind all the free software.

People Behind RTL-SDR:

Original pioneering discoverers: Antti Palosaari, Eric Fry and Osmocom. In particular Steve Markgraf from Osmocom who developed the first driver.
Hardware Sellers: Chinese factories producing and selling generic TV dongles. Sellers of RTL-SDRs improved for SDR use like RTL-SDR Blog.
Community Software/Hardware Devs: Anyone who has created software for the RTL-SDR, or has discovered and documented a hardware hack for the RTL-SDR.
Community Bloggers: RTL-SDR Blog, and other bloggers/content creators who write and popularize RTL-SDR applications.
Wider Community: Anyone using RTL-SDRs.

What is RTL-SDR Blog? (RTL-SDR Blog) started as a place for us to upload our RTL-SDR tutorials and to curate all other RTL-SDR related content onto a single blog. Since its inception we have continued to expand and have written many tutorials, written a guide book and started the signal identification wiki.

A few years ago we decided to create our own RTL-SDR dongle hardware that has significant improvements that benefit SDR users. Since then we've continued to improve our RTL-SDR hardware and are now at the V3 dongle.

Comparisons with other common Wideband Commercial Software Defined Radios

SDRTune Low (MHz)Tune Max (MHz)RX Bandwidth (MHz)ADC Resolution (Bits)Transmit?(Yes/No)Price ($USD)RTL-SDR (R820T)24 17663.2 / 2.56 Stable8No~20Funcube Pro+0.15
20500.19216No~200Airspy2418001012No199SDRPlay0.12000812No149HackRF306000208Yes299BladeRF30038004012Yes400 & 650USRP 1DC60006412Yes700

For those who just want to receive a wide range of signals, we recommend the Airspy or SDRPlay as an upgrade to the RTL-SDR. If you are mainly interested in narrowband signals the Funcube Dongle Pro+ may be worth considering.

For a big list of more software defined radios see our roundup here

RTL-SDR Schematics

No official schematic is available, but GGToshi has created his own reverse engineered schematic which is available at Some application example schematics are also available in the R820T data sheet (see below).


There is no datasheet available for the RTL2832U as it is only available to manufacturers under NDA. The R820T tuner datasheet is available and can be downloaded here.

The Register Description datasheet can be downloaded here.

Useful Links - Official RTL-SDR Osmocom website - Reddit RTL-SDR forum - RTL-SDR community Wiki (not updated in a while) - A good ham related database useful for research - A blog about open source hardware projects that often has SDR related posts. - A blog about DIY hardware that also often has SDR related posts. - Formerly known as "SDR4Mariners". Another blog about RTL-SDR and radio projects. - Strange Beacons. Radio user who records and makes videos about several interesting signals he finds. Often uses an RTL-SDR. - Full Raspberry Pi Kit. Probably useful for an RTL-SDR carry kit.

How Weather Fax is transmitted over HF radio
How to receive weather fax images
How to receive weather satellite images
HF Weather Fax Schedules


It's possible (and quite easy) to receive weather charts and satellite images, using nothing more than your computer and the appropriate radio. This short tutorial shows you how to do this using your Macintosh computer.

I also have apps for the iPhone and iPad as well as Android

Surface Analysis Chart from NOAA/NHC

This first image is a Surface Analysis Chart. It was transmitted from the NOAA/NHC from the USGC in New Orleans, Louisiana. Five USGC stations transmit weather fax at various times throughout the day. Take a look at the HF Weather Fax Schedules further down in this document for time and frequency information.

Weather satellite image re-transmitted over HF

This is a weather satellite image that was re-transmitted over shortwave radio. It's much easier to receive these re-transmissions than it is to directly receive the image from the satellite.

How Weather Fax is transmitted over HF radio

A fax is transmitted line by line, typically at a rate of 120 lines per minute, or half a second per line. For example, to send a weather chart, you would start in the upper left corner. You would send the value of that pixel (dot), black, white, or perhaps a shade of gray. Then you would move over one pixel to the right, and send that pixel, and so on, until you reach the edge of the chart. Then you'd move all the way back to the left edge, and move down slightly, one line, and repeat the process.

Each pixel is converted into a certain audio frequency or tone. By convention, a tone of 1500 Hz represents black, 2300 Hz represents white, and frequencies in-between represent shades of gray. So if you listen to a fax transmission, you'll hear the different tones as each pixel is present. For example, listen to a chart with mostly white background being sent. You'll hear mostl the high pitch 2300 Hz, and some lower (1500 Hz) blips as each black pixel is sent. When a horizontal line is sent, you'll hear a long half second burst of 1500 Hz, since the line is all black.

(A note for the purists: OK, The above was a simplification. In reality, the transmitting station frequency modulates the carrier. That is, when a black pixel is transmitted, the carrier shifts down 400 Hz. When a white pixel is transmitted, the carrier shifts up 400 Hz. For a medium gray pixel, it stays on the assigned frequency. This is how most fax transmissions are actually made. But, since we're tuning it in with a SSB receiver, it sounds to us as if the station is transmitting a variable frequency audio tone. Actually, the two processes are identical. But, this accounts for the confusion regarding what frequency to tune the radio to in order to properly decode the fax transmission. Different stations list their frequency in different ways. It is important to remember that what's really important is tuning the radio so that a black pixel produces a 1500 Hz tone, and a white pixel produces a 2300 Hz tone. )

How to receive weather fax images

In order to receive and decode fax images, you'll need an appropriate radio and antenna, and a cable to connect the audio output of the radio into your Macintosh computer's microphone jack. You'll also need appropriate software to display the images - such as MultiMode. MultiMode decodes weather fax and satellite images on your Macintosh, without the need for extra hardware.

The only requirements of the radio are that it tunes the frequency ranges of interest. A general purpose communications receiver tuning 0-30 MHz is ideal, SSB marine radios may also be used, if they can receive the frequency bands of interest. The radio must be able to tune in USB (upper sideband) mode. Inexpensive portable radios are not as satisfactory, although higher-end units can work well. The radio must be able to tune in small steps (10 Hz), or have some sort of a fine tune adjustment.

A good antenna is a must. It should be located away from the computer, to minimize any pickup of radio interference. Good quality coax cable should be used to connect the antenna to the radio. Proper grounding will also help reduce interference and improve reception. An outside antenna (dipole or active antenna) is recommended.

Connecting the radio to the computer can be as easy as getting an audio cable (from say Radio Shack) with the proper connectors on each end. Often you can just plug a cable from the speaker or headphone jack of the radio directly into the Mac's microphone jack (which uses a 3.5 mm plug). You need to carefully adjust the volume on the radio to not over-drive the Mac's sound input, you don't want to blow anything up.

In a pinch, you can use a Mac microphone, and set it on top of the radio's speaker. You'll need to watch for outside sounds that can get picked up, and create interference.

Tuning in fax stations on HF (Shortwave radio)

There is a great deal of confusion on how to tune in fax stations. This is partly caused by the non-standard ways that stations state which frequency they transmit on. Some give the carrier frequency. Some give the center frequency. All we care about is making sure that when the fax station sends a black pixel, we hear a 1500 Hz tone, and when it sends a white pixel, we hear 2300 Hz. That's it. When you keep that in mind, tuning in a fax station is extremely simple.

First, make sure MultiMode is set up correctly. You'll want to be in fax mode of course. Set the speed to 120 LPM (unless you know otherwise), and the mode to GREY and HF.

Next, tune in the station. You don't need to be precise yet, just make sure you can hear the fax audio. Make sure you've really tuned into the correct station, not a nearby station that may be sending RTTY or some other mode. Make sure you're not getting interference from other stations, and that the signal is fairly strong and clear. If it is noisy, your fax picture will be noisy as well.

When properly tuned in, the station should sound like this

Now, make sure the volume is appropriate. You want the volume indicator in MultiMode (the green bar in the upper right corner) to be around half-way, maybe more.

Finally you need to properly tune in the station. There is a small frequency graph display in the upper middle part of the MultiMode window. It shows what audio frequencies are present, typically this looks like a small bump or hill. There are two small ticks on the bottom of this, to indicate 1500 and 2300 Hz. You want to tune the radio until the bump is between the two ticks. Usually it is the same width, if the fax image being sent has shades all the way from black to white. If not, it may be slightly more narrow.

If you're decoding something, but it doesn't "look right", it's possible the station is using a mode other than 120 LPM.

At this point, you should be receiving something that looks like a proper image. Now fine tune the radio, in case some areas of white background look gray, or black lines look gray. If the audio tones are too high, the image will look too light. Likewise, if the audio tones are too low, the image will look dark. With practice, tuning will become natural. If your radio has digital readout with enough digits, you can note the frequency, so the next time you tune in the station, it is much easier. Just tune back to the same frequency, and you'll be all set.

If you're decoding a chart or other image that is only black and white, you can set MultiMode to LINE mode. In this setting, received pixels are converted to either pure black or white, with no gray. This sometimes produces better images.

If the picture looks correct, but is slanted, then the timing is probably slightly off. All computers run at slightly different speeds, this can cause this problem. It's easy to fix, just adjust the timing delta in MultiMode. This is typically a small number, 0 if everything is perfect, otherwise ranging from maybe -10 to 10. Decimals are allowed, such as -5.7 or similar.

Station Schedules

There is an excellent list of world wide fax schedules here: WORLDWIDE MARINE RADIOFACSIMILE BROADCAST SCHEDULES

There is a new book about receiving FAX transmissions called Just The Fax-Shortwave Weather Fax Reception

Here are transmission schedules for some of the major Weather Fax stations on HF radio:

GFA, Bracknell, UK
CFH, Halifax, Nova Scotia, Canada
NMC, US Coast Guard, Pt Reyes, California, USA
NMF, US Coast Guard, Boston, Massachusetts, USA
NMG, US Coast Guard, New Orleans, Louisiana, USA
KVM70, Honolulu, Hawaii, USA

GFA, Bracknell, UK


  • 2618.5 kHz: 1800-0600 UTC (tune radio to 2616.6 kHz)
  • 4610.0 kHz: 0000-2400 UTC (tune radio to 4608.1 kHz)
  • 8040.0 kHz: 0000-2400 UTC (tune radio to 8038.1 kHz)
  • 14436.0 kHz: 0000-2400 UTC (tune radio to 14434.1 kHz)
  • 18261.0 kHz: 0000-1800 UTC (tune radio to 18259.1 kHz)

WHITE + 400 HZ, BLACK - 400 HZ

Mode: 120 RPM


----------------------------------------------------------- TIME Chart Valid I.O.C. ------------------------------------------------------------ 03:41 MSLP ANALYSIS FOR 00:00 00:00 288 04:31 500 HPA CONTOUR/TT (1000/500HPA) ANALYSIS FOR 00:00 00:00 288 04:40 MSLP 24-HOUR FORECAST (VT 00:00) 00:00 288 08:06 MSLP 48-HOUR FORECAST (DT 00:00) 00:00 288 08:12 MSLP 72-HOUR FORECAST (DT 00:00) 00:00 576 08:18 NORTHERN HEMISPHERE SURFACE ANALYSIS 00:00 288 09:29 SEA/SWELL ANALYSIS FOR 00:00 00:00 288 09:35 SEA/SWELL 24-HOUR FORECAST 00:00 288 09:41 MSLP ANALYSIS FOR 06:00 06:00 288 10:00 500 HPA CONTOUR/TT (1000/500HPA) T+24 FORECAST 00:00 288 10:10 SEA/SWELL 48-HOUR FORECAST 00:00 288 10:31 NORTH ATLANTIC INFERENCE 00:00 576 10:42 MSLP 24-HOUR FORECAST (VT 06:00) 06:00 288 14:12 UK SEA TEMPERATURE ANALYSIS 00:00 288 15:41 MSLP ANALYSIS FOR 12:00 12:00 288 16:02 NORTH ATLANTIC SEA ICE CHART 00:00 576 16:22 SCHEDULE: MARINE PRODUCTS 05:00 576 16:30 GENERAL NOTICES (if any) 576 16:41 MSLP 24-HOUR FORECAST T+24 (VT 12:00) 12:00 288 17:08 500 HPA CONTOUR/TT (1000/500HPA) ANALYSIS FOR 12:00 12:00 288 20:12 SEA/SWELL ANALYSIS FOR 12:00 12:00 288 20:18 SEA/SWELL 24-HOUR FORECAST 12:00 288 21:41 MSLP ANALYSIS FOR 18:00 18:00 288 21:52 SEA/SWELL 48-HOUR FORECAST 12:00 288 22:22 MSLP 48-HOUR FORECAST (DT 12:00) 12:00 288 22:30 MSLP 72-HOUR FORECAST (DT 12:00) 12:00 288 22:41 MSLP 24-HOUR FORECAST (VT 18:00) 18:00 288 23:33 MSLP 96-HOUR FORECAST (DT 12:00) 12:00 288 23:40 MSLP 120-HOUR FORECAST(DT 12:00) 12:00 288 ------------------------------------------------------------

CFH, Halifax, Nova Scotia, Canada


  • 122.5 kHz: 0000-2400 UTC (tune radio to 120.6 kHz)
  • 4271.0 kHz: 0000-2400 UTC (tune radio to 4269.1 kHz)
  • 6496.4 kHz: 0000-2400 UTC (tune radio to 6494.5 kHz)
  • 10536.0 kHz: 0000-2400 UTC (tune radio to 10534.1 kHz)
  • 13510.0 kHz: 0000-2400 UTC (tune radio to 13508.1 kHz)

Mode: 120 RPM, IOC: 576


----------------------------------------------------------- Time UTC Product ----------------------------------------------------------- 0001-0023 ice chart Labrador (if available) *1 0100-0118 Infrared satellite picture (18) 0201-0219 sig wx depiction VT1200 0301-0320 Infrared satellite picture (00) 0321-0339 surface analysis 0000 0401-0426 500 hPa analysis 0000 0501-0519 isobaric prog VT0000 (H+24) 0520-0537 850 hPa forecast wind/temp/height VT1800/0000 0601-0619 sig wx depiction VT1800 0620-0638 surface analysis 0000 0703-0721 sig wave prog VT1200 (H+12) 0722-0740 sig wave prog VT0000 (H+24) 0741-0759 isobaric prog VT1200 (H+36) 0801-0819 sig wave prog VT1200 (H+36) 0820-0838 sea surface temp (New Founland Wed, Sat) (Nova Scotia Sun, Thu) ocean feature anal (New Foundland Mon,Fri) (Nova Scotia Tue) 0901-0920 surface analysis 0600 1001-1024 Infrared satellite picture (06) 1101-1123 Shedule / Test chart 1201-1223 3 day surface prognosis (12) 1223-1241 4 day surface prognosis (12) 1245-1307 5 day surface prognosis (12) 1310-1318 Infrared satellite picture (12) 1401-1419 sig wx depiction VT0000 1501-1521 500 hPa analysis 1200 1522-1540 surface analysis 1200 1601-1624 850 hPa analysis 1200 1701-1719 isobaric prognosis VT1200 (H+24) 1801-1819 sig wx depiction VT0600 1820-1838 850 hPa forecast wind/temp/height VT 0600/1200 1901-1919 isobaric prognosis VT0000 (H+36) 1920-1938 sig wave prognosis VT0000 (H+12) 1939-1958 sig wave prognosis VT1200 (H+24) 2001-2018 sig wave prognosis VT0000 (H+36) 2019-2038 sea surface temp (New Foundland Mon, Wed, Sat) (Nova Scotia Tue, Thu, Fri, Sun) 2101-2122 Ocean feature analysis Newfoundland (Mon, Wed, Sat) 2123-2146 surface analysis 1800 2201-2232 ice chart New Foundland (if available) *1 2301-2323 ice chart Gulf of Saint Lawrence (if available) *1

NMF, US Coast Guard, Boston, Massachusetts, USA


  • 4235.0 kHz: 0230-1015 UTC (tune radio to 4233.1 kHz)
  • 6340.5 kHz: 0000-2400 UTC (tune radio to 6338.6 kHz)
  • 9110.0 kHz: 0000-2400 UTC (tune radio to 9108.1 kHz)
  • 12750.0 kHz: 1430-2215 UTC (tune radio to 12748.1 kHz)


Mode: 120 RPM, IOC: 576


------------------------------------------------------------------------ Time UTC Product RPM/IOC VALID MAP ------------------------------------------------------------------------ 0230/1430 TEST PATTERN 120/576 0233/1433 PRELIMINARY SURFACE ANALYSIS 120/576 00/12 1 0243/---- BROADCAST SCHEDULE (PART 1) 120/576 ----/1443 96 HR 500MB PROG 120/576 0000 4 ----/1453 96 HR SURFACE PROG 120/576 0000 4 0254/---- BROADCAST SCHEDULE (PART 2) 120/576 0305/---- REQUEST FOR COMMENTS 120/576 ----/1503 SATELLITE IMAGE 120/576 1200 5 0315/1515 SEA STATE ANALYSIS 120/576 00/12 1 0325/1525 SURFACE ANALYSIS (PART 1 NE ATLANTIC) 120/576 00/12 2 0338/1538 SURFACE ANALYSIS (PART 2 NW ATLANTIC) 120/576 00/12 3 0351/---- SATELLITE IMAGE 120/576 0000 5 ----/1600 ICE CHARTS 120/576 LATEST ----/1720 TEST PATTERN 120/576 0402/1723 (REBROADCAST OF 0325/1525) 120/576 00/12 2 0415/1736 (REBROADCAST OF 0338/1538) 120/576 00/12 3 0428/1749 500MB ANALYSIS 120/576 00/12 4 ----/1759 SEA STATE ANALYSIS 120/576 1200 4 ----/1810 ICE CHARTS 120/576 LATEST ----/1900 TEST PATTERN 120/576 ----/1905 BROADCAST SCHEDULE (PART 1) 120/576 ----/1920 BROADCAST SCHEDULE (PART 2) 120/576 ----/1935 REQUEST FOR COMMENTS 120/576 0745/1945 TEST PATTERN/PRODUCT NOTICE BULLETIN 120/576 0755/1955 PRELIMINARY SURFACE ANALYSIS 120/576 06/18 1 0805/2005 24HR SURFACE PROG 120/576 00/12 1 0815/2015 24HR WIND/WAVE PROG 120/576 00/12 1 0825/2025 24HR 500MB PROG 120/576 00/12 1 0835/2035 36HR 500MB PROG 120/576 12/00 4 0845/2045 48HR 500MB PROG 120/576 00/12 4 0855/2055 48HR SURFACE PROG 120/576 00/12 4 0905/2105 48HR WIND/WAVE PROG 120/576 00/12 4 0915/2115 48HR WAVE PERIOD PROG 120/576 00/12 4 0925/2125 SURFACE ANALYSIS (PART 1 NE ATLANTIC) 120/576 06/18 2 0938/2138 SURFACE ANALYSIS (PART 2 NW ATLANTIC) 120/576 06/18 3 0951/2151 SATELLITE IMAGE 120/576 06/18 6 1002/2202 (REBROADCAST OF 0925/2125) 120/576 06/18 2 1015/2215 (REBROADCAST OF 0938/2138) 120/576 06/18 3 MAP AREAS 1. 28N-52N, 45W-85W 2. 15N-65N, 10E-45W 3. 15N-65N, 40W-95W 4. 15N-65N, 10E-95W 5. 20N-55N, 55W-95W 6. EQ-60N, 40W-130W

NMC, US Coast Guard, Pt Reyes, California, USA


  • 4346.0 kHz: Night (tune radio to 4344.1 kHz)
  • 8682.0 kHz: 0000-2400 UTC (tune radio to 8680.1 kHz)
  • 12786.0 kHz: 0000-2400 UTC (tune radio to 12784.1 kHz)
  • 17151.2 kHz: 0000-2400 UTC (tune radio to 17149.3 kHz)
  • 22527.0 kHz: Day (tune radio to 22525.1 kHz)


Mode: 120 RPM, IOC: 576


------------------------------------------------------------------------ Time UTC Product RPM/IOC VALID MAP ------------------------------------------------------------------------ ----/1415 TEST PATTERN 120/576 ----/1418 96 HR 500MB PROG 120/576 0000 1 ----/1428 96 HR SURFACE PROG 120/576 0000 1 ----/1438 SATELLITE IMAGE 120/576 LATEST 5 0245/---- TEST PATTERN 120/576 0248/1449 SATELLITE IMAGE 120/576 LATEST 7/6 0259/---- SATELLITE IMAGE 120/576 LATEST 5 ----/1500 SEA STATE ANALYSIS 120/576 1200 8 0310/---- SEA STATE ANALYSIS 120/576 0000 1 ----/1510 WIND/SEAS ANALYSIS 120/576 1200 4 0320/1520 SURFACE ANALYSIS (PART 1 NE PACIFIC) 120/576 00/12 2 0333/1533 SURFACE ANALYSIS (PART 2 NW PACIFIC) 120/576 00/12 3 0345/1545 500MB ANALYSIS 120/576 00/12 1 0355/1555 (REBROADCAST OF 0320/1520) 120/576 00/12 2 0408/1608 (REBROADCAST OF 0333/1533) 120/576 00/12 3 0800/2000 TEST PATTERN 120/576 0808/2008 24HR SURFACE PROG 120/576 00/12 8 0818/2018 24HR WIND/WAVE PROG 120/576 00/12 8 0828/2028 48HR 500MB PROG 120/576 00/12 1 0838/2038 48HR SURFACE PROG 120/576 00/12 1 0848/2048 48HR WIND/WAVE PROG 120/576 00/12 1 0858/2058 48HR WAVE PERIOD PROG 120/576 00/12 1 0908/2108 SATELLITE IMAGE 120/576 06/18 7/5 0919/2119 SURFACE ANALYSIS (PART 1 NE PACIFIC) 120/576 06/18 2 0932/2132 SURFACE ANALYSIS (PART 2 NW PACIFIC) 120/576 06/18 3 0944/---- SATELLITE IMAGE 120/576 0600 5 ----/2144 WIND/SEAS ANALYSIS 120/576 1800 4 0955/2154 (REBROADCAST OF 0919/2119) 120/576 06/18 2 1008/2207 (REBROADCAST OF 0932/2132) 120/576 06/18 3 1100/2300 TEST PATTERN 120/576 1104/---- BROADCAST SCHEDULE (PART 1) 120/576 ----/2304 SST ANALYSIS 120/576 LATEST 9 ----/2314 SST ANALYSIS 120/576 LATEST 6 1115/---- BROADCAST SCHEDULE (PART 2) 120/576 ----/2324 BROADCAST SCHEDULE (PART 1) 120/576 1126/---- REQUEST FOR COMMENTS 120/576 ----/2335 BROADCAST SCHEDULE (PART 2) 120/576 1137/---- PRODUCT NOTICE BULLETIN 120/576 1148/---- (REBROADCAST OF 2304) 120/576 LATEST 9 1158/---- (REBROADCAST OF 2314) 120/576 LATEST 6 MAP AREAS:1. 20N - 70N, 115W - 135E 2. 20N - 70N, 115W - 175W 3. 20N - 70N, 175W - 135E 4. 20S - 30N, EAST OF 160W 5. 05N - 60N, WEST OF 100W 6. 23N - 42N, EAST OF 136W 7 05N - 55N, EAST OF 130W 8. 25N - 60N, EAST OF 155W 9. 40N - 53N, EAST OF 136W

KVM70, Honolulu, Hawaii, USA


  • 9982.5 kHz: 0533-1930 UTC
  • 11090.0 kHz: 0000-2400 UTC
  • 16135.0 kHz: 0000-2400 UTC
  • 23331.5 kHz: 2350-0236 UTC


Mode: 120 RPM, IOC: 576


------------------------------------------------------------------------ Time UTC Product RPM/IOC VALID MAP ------------------------------------------------------------------------ 2350/1150 TEST-ID-SCHEDULE-GENERAL NOTICE 120/576 0005/1205 PACIFIC SURFACE ANALYSIS 120/576 18/06 B 0030/1230 SATELLITE IMAGE (IR) 120/576 LATEST FD 0045/1245 SATELLITE IMAGE (IR) 120/576 LATEST EP 0105/1305 TROPICAL SURFACE ANALYSIS 120/576 18/06 C 0128/1328 48HR SURFACE FORECAST 120/576 12/00 C 0150/1350 48HR 500MB/VORTICITY FORECAST 120/576 00/12 F 0212/---- 24HR WIND/STREAM FORECAST 120/576 0000 D 0236/---- 48HR WIND/STREAM FORECAST 120/576 0000 D ----/1412 24HR OCEAN WINDS/SIG WAVE HT FORECAST 120/576 0000 E ----/1428 48HR OCEAN WINDS/SIG WAVE HT FORECAST 120/576 0000 E 0533/1733 TEST-ID-SYMBOLS-GENERAL NOTICE 120/576 0545/1745 SIGNIFICANT CLOUD FEATURES 120/576 00/12 A 0605/1805 PACIFIC SURFACE ANALYSIS 120/576 00/12 B 0630/1830 SATELLITE IMAGE (IR) 120/576 LATEST FD 0645/1845 SATELLITE IMAGE (IR) 120/576 LATEST EP 0705/1905 TROPICAL SURFACE ANALYSIS 120/576 00/12 C 0730/1930 PACIFIC OCEAN SEA SURFACE TEMPS 120/576 NPA MAP AREAS: A - 50N - 30S, 110W - 160E B - 50N - 30S, 110W - 130E C - 60N - 55S, 055W - 070E D - 50N - 30S, 100W - 120E E - 60N - 35S, 110W - 130E F - 50N - 25S, 120W - 120E EP - EQUATORIAL PACIFIC FD - FULL DISK NPA - NORTH PACIFIC AREA

NMG, New Orleans, Louisiana, USA


  • 4317.9 kHz: 0533-1930 UTC (tune radio to 4316.0 kHz)
  • 8503.9 kHz: 0000-2400 UTC (tune radio to 8502.0 kHz)
  • 12789.9 kHz: 0000-2400 UTC (tune radio to 12788.0 kHz)


Mode: 120 RPM, IOC: 576


------------------------------------------------------------------------ Time UTC Product RPM/IOC VALID MAP ------------------------------------------------------------------------ 0000/1200 TROPICAL SURFACE ANALYSIS 120/576 18/06 1 0030/1230 24/36 HR WIND/SEAS FORECAST (2 CHARTS) 120/576 00&12/12&00 2 0050/1250 HIGH SEAS FORECAST (IN ENGLISH) 120/576 22/10 5 0115/1315 0/12 HR WIND/SEAS FORECAST (2 CHARTS) 120/576 00&12/12&00 2 0135/1335 U.S. SURFACE ANALYSIS 120/576 18/06 3 0150/1350 GOES-8 IR TROPICAL SATELLITE IMAGE 120/576 2345/1145 4 0205/1405 REQUEST FOR COMMENTS/PRODUCT NOTICE 120/576 0600/1800 TROPICAL SURFACE ANALYSIS 120/576 00/12 1 0630/1830 BROADCAST SCHEDULE 120/576 0650/1850 HIGH SEAS FORECAST (IN ENGLISH) 120/576 04/16 5 0715/1915 0/12 HR WIND/SEAS FORECAST (2 CHARTS) 120/576 06&18/18&06 2 0735/1935 U.S. SURFACE ANALYSIS 120/576 00/12 3 0750/1950 GOES-8 IR TROPICAL SATELLITE IMAGE 120/576 0645/1745 4 0805/2005 (REBROADCAST OF 0030/1230) 120/576 00&12/12&00 2 MAP AREAS: 1. 05S - 35N, 0 - 120W 2. 10N - 30N, 55W - 100W 3. 15N - 50N, 65W - 125W 4. 12S - 44N, 28W - 112W 5. 3N - 32N, 35W - 100W (AREA COVERED BY TEXT FORECAST) MultiMode - Decodes weather fax and satellite images on your Macintosh, without the need for extra hardware.

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info@blackcatsystems.comChris Smolinski