Everyone calm down, she may have gotten terms wrong, but she also said she was just getting into it, which means she most likely won't know all the terms perfectly. Don't bash the newcomers that are getting into your hobby, or your hobby may die! Regardless, I just found out about this technology, and I can't wait to start tinkering, and I am very glad to have seen this video.
DD, we get it. But it doesn't explain why lots of seasoned ham ops out there still can't learn the PROPER phonetic alphabet. Just sayin. Not picking on the hobby (I did it for a living) but geez. It's not that hard to learn it.
The video, while informative, is a bit misleading. The $20 SDR-RTL dongle definitely does *not* "receive everything". It does receive over a fairly wide band, from about 24MHz to 1.7 GHz, so you can listen to CB, broadcast FM, aircraft, police, certain amateur bands such as 10-meter, VHF and UHF and also public service bands, etc. But it leaves out long wave, medium wave (broadcast AM) and almost all the shortwave bands. You won't listen to 160m, 80m, 40m or 20m amateur bands. If you are interested in any of those, you are out of luck - unless you (1) purchase an rtl up-converter (look it up) which extends the receiving range down to the lower frequencies or (2) instead of purchasing the cheap $20 dongle SDR, go for more expensive, $150 SDR radios that do get full, uninterrupted coverage from VLF (10kHZ) all the way up to microwave (2GHZ). Another great feature of the more expensive, $150 radios, is the 10-MHz "window" that can be looked at at once (as opposed to only 2MHz on the cheap dongles). This wider spectrum band makes it easier to visually look for signals in the spectrum view and waterfall view in SDR software. Of course, being such a low investment, it does make sense to just get the dongle and see if you enjoy the hobby. You can always get a better radio later on.
To add to the above there is another alternative - to purchase for around bucks an up-converter to be able to tune down to practically DC and feed this through the dongle. Cheaper but of course less convenient than a single packaged instrument.
Right you are mate ...sorry about that and tks for pointing out. I also notice that I left the c 50 bucks out from my previous post in reference to the cost of the up-converter.
Well, this is old news now but the silver rtl.sdr blog dongle (Version 3 and higher) will receive below 24 MHz including the 75 and 160 meter ham bands. You just have to change the software to direct sampling Q branch.
152.000 Mhz area is designated for old style pager systems. They are also in the 455 mhz, 928 + Mhz range. Also, USB AND LSB means Upper Side Band, and Lower Side Band. That is primarily used by amateur (ham radio) operators, also in some maritime (ships) transmissions. I really enjoyed your video.
CW can be received by tuning to the lower portion of the 20 meter ham band, 14.020 plus and minus 20 kHz. Remember to use an upconverter to receive below 24MHz. 73 de KT1R
Basic SDR dongle needs converters to work on signals lower than 40 mHz. Can be done via software but an up-converter works far better. Band pass filters may be needed for less interference. 152 mHz is usually for public service, not much CW there.... signal sounds like data
You won't get a numbers station on that $20 dongle, you'd need an upconverter to pick up anything below 52mhz. Which would include AM, longwave, shortwave, navigation beacons, CB, etc... It's not "all you'd ever need." The frequencies it can get out of the box are line of sight reception, so no "radio stations from the other side of the planet," sorry. And not one word about DECODING that funky-sounding data transmission, which is also possible.
there is a cheap HF adapter for SDR dongles that can get SW - HF transmissions as well ad Demodulate them correctly, or you can just get a ICOM R-30 , it covers 100 Khz HF through 3.4 Ghz including all Analog and Digital modes. it also has Twin VFO and the ability to record two at a time. it has built in GPS and Bluetooth as well and is a compact handheld scanner.
@@thatyoutubeguy7583 - SDR is limited applications, you need a Laptop/PC to run it, I can take my SDR scanner with me Everywhere, its has Built in GPS and it has Bluetooth audio. It has DUAL receivers, I can hear Two frequencies at the same time and I can Record two Different conversations at the same time.
@@thatyoutubeguy7583 - sure , if you want to go cheap DYI then go ahead, Fact is Scanners today use Dual Tuners , one Super Het and one SDR, perhaps in a few years we might see Dual or Triple SDR in a Scanner. but, If you want something to take on the Road or wear on your hip , then the Expence of a SDR scanner is worth it, Specially if its got Built in GPS and Bluetooth. I recommend ICOM R30 as it gets HF all the way to 3.4 Ghz no gaps on Coverage (cell blocked). all other Scanners have missing blocks of Frequencies to save money. but they Trunktrack very well .
this is the 30th time i have watched this clip, but even still, Shannon i love you! i have a Hack RF, and i have been using SDR for years now, but thank you for introducing noobs to this awesome tech!!!!
The info given in this vid has some problems but overall is pretty good. The biggest deal that anyone interested in SDR should know is that the tiny antenna is fairly worthless. A coat hanger would be an improvement. The RTL-SDR site sells a kit (I think it's available on Amazon, too) that includes an antenna. The kit is kinda cheesy but works well. Buy or make an antenna that is at least that size. A 20ft/6m wire up and across the ceiling would be quite good. Her tiny one is about microwave size. SDR is fun. Downloading images from satellites is quite possible. The range of many dongles is about 500kHz to 1.5 (or so) MHz...that covers a lot of ground
This is awesome. I remember back in the day when my dad was taking to someone on cb radio from texas to iowa. All for 20 bucks. Thanks. I will be buying it.
Michael L. It's not going to get you far, it's a receiver, not a transmitter. Your memories are like this girl's knowledge of radio, badly flawed. "A bunch of Spectrums" ??? and obviously zero knowledge of any important transmissions being encrypted and impossible to understand. Why would she be so interested in CW and RTTY? She doesn't know Morse code and RTTY requires something a little more expensive than a $20 SDR. There are going to be a lot of disappointed people who buy this receiver because of what the see here. And I also guarantee she'll quickly lose interest in it.
I understand it's their show and all but they could have invited a guest that knew what they were talking about. Imagine how awesome this episode would have been if a ham could have demonstrated APRS or PSK31 with an upconverter.
Dave, I know what you mean. Like I cringe every time I hear a lid on cw or how hamops butcher the phonetic alphabet. But for Pat and his guest, they did pretty good for computer weenies. I'm sure they would cringe listening to some ham guys try to talk computers. All in fun. 73's.. retired Coast Guard Radioman sends.
At around 8:00 i'd say your signal is probably a pager service. Before doing anything check the laws about listening to it. If that's all good, Look up PDW by googling "pdw linux" and it should take you to the page for the WINDOWS download. With it you can pipe the audio from SDR# or any other receiver program and decode the transmissions. Watch you you might see some crazy pages going out.
CW is in the shortwave bands usually below 15.0mhz. 152mhz, in the VHF bands, is usually for a pager, taxi, bus data, or sometimes even a police car's computer, but would never be not CW.
152mhz is most likely a local pager of sorts, or mobile messaging system, not CW. CW is on the shortwave band, like way below 20mhz. You'll need a bigger & longer antenna with a much more expensive converter to pick up shortwave. Without them, that dongle & tiny antenna will only pick up strong VHF (FM included) & UHF transmissions within just a few miles. AM radio is even lower than shotwave at 0.530-1.7mhz. Can't pick them up without a converter & a different antenna.
152 MHz is probably a paging channel. The data sounded a lot like Motorola's Flex format paging tones mixed with 2400 baud Pocsag signaling. Interesting,that the Feds haven't banned these units since they can pick up "cellular" signals in the 800 MHz region. Not much one can hear since most cellular is now in a digital format and one needs proprietary equipment to decode CDMA and TDMA audio data used in today's cellular phone technology. GSM cellular is a bit easier to decode. Gone are the days of the old analogue AMPS cell systems where one could hear some of the conversation until the mobile was handed off to another cell site and on to a different frequency.
The included tiny antenna does not pick up as much as they would have you believe. You need a much longer one, and outside, to really make SDR shine. Installing it takes some effort as the dongle does not come with it's own software. It uses 3rd party freeware so it's not quite 'plug and play' but more like 'plug and pray.'
Not quite "plug and pray" because it does work. But you are right in that the little DVB-T antenna is very limited and you'll need 3rd party software - but it's readily available and freeware. And hey, this is a hobby, some effort from the user is to be expected.
you can use a cheap B/W analog tv as a Radio Telescope with a helical antenna. I also used a analog tv to receive RF demodulator and CRT monitor screens.
Like a lazy dude, I didn’t bother to read the other comments before commenting, so apologies if this is a double post. If you want to learn more about what is going on in different frequency ranges, search for Ham Band Plan on arrl.org. The ham (amateur radio service or ARS) Band Plan is a Plan agreed upon by amateur operators’ associations around the glide and sanctioned by each country’s equivalent of the FCC. It’s a good way to figure what mode of radio communications is occurring. The radio communications you were hearing around the 7:45 Mark was likely PSK31, packet radio. You could use the software fldigi to listen in. 73s KN4FVH
HDSDR authors now recommend the SDRplay RSP1 and RSP2 www.hdsdr.de/hardware.html
10 лет назад
RTL-SDR doesn't do HF, it's VHF and up (it's possible with an upconverter or a direct sampling mod). So it doesn't really tune 'everything'. Still, an amazing little thing.
I wish I had the time to blow off the dust on the Tubes on the Yaesu 101e and listen to the soft glow of the HF Band.... But... Internet kinda Killed Packet Radio and Cell Phones did the rest.. I still tinker with 2 meters now and then and UHF 440, but mostly to listen to police.
EliteGeeks Packet's still out there... and now you can use your sound card to get on it. Just need discriminator and phase/freq modulator access... any radio with a G3RUH (9600bps) port will work.
Do you need the ground plane for that antenna? as in...does it require a ground plane..like a cb radio antenna does...Does it have to be attached to a metal plate to work right? Thanks Kenny
Tons of stuff where you are. I'm in the country and I can only get a few things. Broadcast FM, POCSAG pager traffic weather radio stations and sometimes in the 150mhz area some public safety chatter.
SDR dongle are nice toys, but require at least a Razz Pi to operate correctly, not to mention you will need multiple SDR to operate a Trunking or Scanner function. SDR cannot replace scanners or communications receivers. they don't scan fast , like 300 CH a second. and depending on the software, they cant Demodeulate all the Analog or Digital modes. a frequency counter like the optoelectronics Digital Scout is a better purchase, as it can scan the EM spectrum under 1 Seccond and Capture anyone operating a RF device instantly without TUNEING. it stores the Frequency, any tone codes, S strength, and Analog/Digital mode, it can also Automatically anayize Trunking systems.
CW is Continuous Wave. CW is morse code. She was correct. However, CW/morse code is just as relevant today as "back in the day." I would suspect there are more Morse Code operators today than "back in the day."
I'm surprised Shannon Morse recommended large diaphragm condenser microphones for gaming voice with loudspeakers in the background. Although both the C01U and the Blue Yeti have pattern adjustment, they pick up way too much of the room (and would pick up the loudspeakers). A headset microphone would have been a much much better option.
Really? Because I just used my Samson C01U for a podcast, with my speakers on next to my computer monitors. It didn't pick them up at all, just my voice.
That's very interesting indeed. The C01U doesn't have THAT much off axis rejection, like say the Heil PR-40. I get bleed in from anything nearby unless I really adjust the gain very carefully. Maybe your room has much less reverberation. Also for gaming, there will be much more audio coming out of the monitors (background music etc) than podcasting.
Chinmay Pendharkar True. Gaming does have a lot more audio. I do use a spider mount and a fabric mousepad underneath it to keep it from picking up any kind of vibration noise.
6:26 "CW" is not a continuous band. There is no such thing as a "continuous band", implying radio waves are continuously flowing. The term "band" is defined as a set group or section of frequencies, often a range of frequencies. The FM band on consumer radios ranges from 88mhz to 108 mhz as an example. The term "CW" stands for Continuous Wave. It is not a band, but It is a "mode" of radio transmission which uses an old fashioned telegraph key or modern telegraph key devices. The operator presses the key to make dots and dashes which form the basis of Morse Code, a system of communicating. When the key is pressed, a "Continuous Wave" of radio frequency is produced by the transmitter, with no modulated voice or music...just a wave, which is then received by a radio receiver in audio form as dots and dashes. The listener needs to be able to hear, understand and interpret Morse Code in order to decode the message being sent. Ham Radio Operators still use CW as one of their modes of transmitting and receiving radio waves. Other "modes" of transmitting and receiving are AM (Amplitude Modulation) FM (Frequency Modulation) USB (Upper Sideband) LSB (Lower Sideband) RTTY (Radio Teletype) and many other modes used in Amateur Radio, Military Radio, and Industrial radio applications.
Hi, welcome to 2020. We have HTTPS certificates you have to buy. 1. The RTL-SDR supports FM, it only outputs in stereo if you have stereo phone speakers. It supports AM, but you have to disable Q-sampling, which makes it impossible to listen to FM at the same time. The sampling can be switched at any time. 2. Yes. You need a mini-USB to USB type-B female adapter to plug in the RTL-SDR. 3. www.rtlsdr.com/
Looking to get into LTE stuff soon. Anyone know off the top of their head if this dongle supports those frequencies? Looking at a bladeRF ($400) to get me started on an LTE hotspot of a sort. Can't wait!
LTE is pretty wideband. This supports about 2.5MHz bandwidth. That said I "see" the LTE signals in my area in the 700 range. I forget the actual frequency.
Can pick up anything in the EM spectrum that carries information? No, these devices have a definite bandwidth and if the signal lies outside of that bandwidth you are shit outta luck. Also different EM bands need different antenna or even more complex devices (think of visual light and even x ray, neither of which can be picked up by a simple antenna).
You better swing you receiver to NFM and hook this 152 Mhz into a pocsag decoder. CW have very small bandwidth and this is not sufficient to decode a NFM signal. Good luck!!
>ElectronicsTech09 - he did not ask if it was legal - he asked if it would work - illeagle is a sick bird - especially in this country - when the "LAW" allows men to marry men and women to marry women and abortions / murders not only "legal" but greatly encouraged - that body of "Law" has ABSOLUTELY NO CREDIBILITY --- Snortin' Morton
ElectronicsTech09 sorry but anyone can use an encrypted scanner to talk from the police (which is illegal) to William Morton to contact his favorite neonazi friends
7:46 There is no such thing as a CW frequency. Read the definition below for accurate information. What she is listening to is digital information being transmitted via radio teletype or other digital mode, NOT CW !!
+Kennynva T. I know that you can decode cw and many other modes on the pc version of software, it does it through the sound card with virtual cables to connect the two. You first have to have an HF converter due to the fact that the dongle is for much higher frequencys also you need an antenna for hf frequencys or you could add a 30 ft wire to the one shown. the dongles are for tv in the UK 900 mhz HF is below 30 mhz :)
The best thing is called an sdrplay check it out on u tube 150 I know it's more but it is so much more than the others and easy to use. I don't decode modes yet but have done the Reasearch it is very cool also you need pc to do it. But it is night and day as far as how it looks and performs
I bought the $20 piece with the little antenna that she shows, and it does nothing. Nothing other then a color bar across the screen. I downloaded to software and still zero.
***** I checked and did not see RTL-SDR/ USB anywhere in Zadig. I think I'll down load and start over, making sure I have the right one for Win 8.1. I will run the unit away from computer. It seems easy, i don't know why I am having problems. O-well, things aren't always what they appear to be.
***** Found it, thanks. Now I just have to figure out what is running. It tells me found 2 devices but are running. This is my system, Its a new laptop and I am still finding things. Anyway I think that's it. lol. Thanks Danny. Buzz
I would be very surprised if this model covers any world band shortwave stations. The frequencies covered by these are primarily VHF and UHF. There are some mods to these that can achieve HF capability but they require some expertise in fine circuit board and surface mount work. Nevertheless, these little rigs are really great and affordable! VY 73s de WA1UFO !
+Steve O'Shaughnessy Yup, I got a dongle and played around with it... also some of the mods to convert it to more HF are nice. Funny, I didn't notice her last name is "Morse" funny when you think about it.
Why doesn't revision 3 simply upload the content from their RSS feed, to youtube that way youtube gets the full episodes? sometimes when traveling and mainly using a mobile device, is more convenient to use youtube, but sadly, with many revision 3 shows, they break the episodes up into multiple parts and in many cases you may find part 2 to something and not the first part, or other weirdness. Please upload full episodes.
The world is going to be a really weird place if I know the frequency area to a iphone, or samsung galaxy. Might try it out, but wouldn't this be more of a reason if you have this device in your home to be looked at carefully by you know who? ...lol.
For what it is worth, the title of this channel is the misleading part, not the lack of technical knowledge. Also, I have a real problem with people who always have their hair in their eyes. Way too distracting.
Tekzilla - SDR for $20 alone is complete shit. the TOP 4 scanner makers are using SDR chipset with FPGA array. the ICOM R-30, AOR DV-10, Whistler TRX100 & 200 , and the UNIDEN SDS100. all radios are sold on the market as of july 2018 except for the Whistler. all 4 Radios can demodulate LSM QAM simulcast transmissions. but only the UNIDEN can also do Digital Trunktracking. however, the ICOM, AOR and Whistler scanners do not do Digital Trunktracking but all Analog and Digital modes are FREE. UNIDEN charges for "upgrades". The ICOM and AOR have built in GPS and Bluetooth and the Whistler has Bluetooth as well. UNIDEN needs a cable and a Hockey puck external Antenna in order to get GPS. furthermore if I want to verify a frequency , I have my OPTOELETRONICS Digital Scout, its a pager sized Frequency counter, it can Automatically scan the Entire EM spectrum in under 1 second , and as soon as someone uses a radio device nearby , it locks on and stores it along with Frequency, S- strength, any Tone Codes and the Analog/Digital mode. I can walk a mall or go to a Police Station and collect frequencies and analyze Trunking systems.
3:18 "To get this downloaded and working, first you need to get your antenna. So get this online, around 20 bucks or so" then 3:57 "This is antenna, and this is dongle, and both of them come together for the 20 bucks so you get both of them" Lol! So, buy an antenna, and then get the antenna and dongle, so you have two antennae?
Finally at 5 min. in she mentions she does not know much about radio ;) This is too bad that someone in this type of show puts out so much wrong , bad , misleading info . A lot of what is mentioned can be done , but not with out modes , other boards enabling some of this .
Look Tekzilla, if you are presenting yourselves as credible or professional reporters, you need to do your homework first or at least ask technically knowledgeable people what these gadgets are and how they operate before you put a bunch of incorrect erroneous descriptions on the internet. Apparently your favorite word is "fricken" which you used several times, but that's about the only word you got right.
This chick needs to do more research, because USB,LSB, and CW are Ham radio bands. there is no set schedule when there is anything played like she says on CW.. lmfao.. get the facts right and know the product before doing an interview about it..
