With this kit you can receive signals from the Inmarsat satellites.
I performed a review of the bundle decoding various Classic Aero signals in the 1.545 GHz band.

I used the NooElec SMArtee Software Defined Radio for the tests, and tuned the SDR using SDR#.

-- Links ---
NooElec Inmarsat L Band Bundle (US) - https://amzn.to/3g6Xoxq
NooElec Inmarsat L Band Bundle (UK) - https://amzn.to/3w99zAN

NooElec SMArtee SDR (US) - https://amzn.to/3cmdPVA
NooElec SMArtee SDR (UK) : https://amzn.to/3poV5tP

As always, thanks for watching the Frugal Radio (FR) channel!

rdio-scanner creates a customizable web interface from which to control your software defined radio. Using it, you can turn a computer, phone or tablet into something that closely resembles a hardware scanner!

Trunk Recorder is the software that decodes the unencrypted P25 signals and records them to disk. Here is it demonstrated working on a large Simulcast (LSM) site.

rdio-scanner reads the audio files. Through the rdio-scanner interface, you are basically choosing which audio files to play.

Have a look at the video, and comment below if you use Trunk Recorder or rdio-scanner with your SDR. Or tell me about your solution!

**You don't need an Airspy product, all this software will also work with the infamous RTL-SDR v3 and NooElec SMART dongles as well 😃 **

-- If you find this video helpful, feel free to buy me a coffee --
https://frugalradio.com/tips/

Links :
DragonOS Focal - https://sourceforge.net/projects/dragonos-focal/
Trunk Recorder - https://github.com/robotastic/trunk-recorder
rdio-scanner - https://github.com/chuot/rdio-scanner
Airspy Mini - https://airspy.com/airspy-mini/

These pages are often displayed on Mobile Data Terminals (MDTs).
I used a generic dongle in this video, but I recommend the frequency stabilised units (with TCXO) below :

NooElec SMART : https://amzn.to/2YKlh6p

RTL-SDR v3 : https://amzn.to/2NIGGGZ

I used an MCX to BNC adapter for the antenna : https://amzn.to/3omy3W7

However if you are using an RTL-SDR or NooElec SMART you'll need one of the SMA connectors, such as those in the kits below.
RTL-SDR pigtail kit : https://amzn.to/3F5Stsf
NooElec SMA connector kit : https://amzn.to/3jLAXyJ

--- Software Links ---
SDR++ : https://github.com/AlexandreRouma/SDRPlusPlus

VB Cable : https://vb-audio.com/Cable/index.htm
PDW : https://discriminator.nl/pdw/index-en.html

--- Other YouTube videos mentioned ---

Pager use by Dr. Siobhan @ViolinMD : https://www.youtube.com/watch?v=aQBu99mwf08

SDR++ review by @SignalsEverywhere : https://www.youtube.com/watch?v=aAbgbDVs_0A

SDR++ review by @TechMindsOfficial : https://www.youtube.com/watch?v=ECZGMbpf184

--- Timecode ---
00:00 - Introduction
00:52 - Pagers in 2021
02:20 - Pager Users
03:39 - Emergency Service Pages
03:59 - MDTs (Mobile Data Terminals)
04:21 - Decoding Setup
05:57 - Set up SDR++

07:45 - Set up PDW pager decoder
10:36 - Filtering Messages in PDW
12:09 - Understanding Fire & EMS pager messages
14:12 - What can you decode?

Photos of Edmonton Fire Rescue Service vehicles found at http://www.barp.ca/photo_index2.html, and copyright mike-from-edmonton

As always, thanks for watching the Frugal Radio (FR) channel!

It took me AGES to find the setting that enables the Zone heading to remain on. That's because the item that needs to be changed is called "Digital Contact". Who would have guessed that?

This video shows how to disable the Digital Contact display in order to leave the Zone display on all the time.

I used the Alinco CPS v1.12 found on the download tab of the link below. My radio runs firmware v 1.13c.

https://www.remtronix.com/land-mobile-radio/digital-radios/dj-md5/

Have you found any oddly named settings on your Alinco? Are there any MD5 videos you would like to see? Comment below, and thanks for watching 😃

This 5 channel coherent SDR is simply amazing.
Highly recommended for any DF enthusiasts, or as additional equipment for your Amateur Radio club.

NOTE : I was provided a free KrakenSDR in order to test it. No other payment was made for this review. I'm just showing the fun I had with this incredible software defined radio platform.

Links :KrakenSDR - https://www.crowdsupply.com/krakenrf/krakensdr12v high power USB car charger - https://amzn.to/3RWXzgeUSB A-C cables - https://amzn.to/3L8uuw6

As always, if you are interested in the magic & mystery of radio, you are welcome to subscribe!

Thanks for watching the Frugal Radio (FR) channel.

Timestamps :
00:00 - Intro
00:38 - My Go Box
01:05 - Background info
01:46 - Setting up array
03:10 - Wiring up
05:21 - Test 1
08:13 - WOW!
09:01 - Driving to site
10:01 - Found
12:03 - Test 2
13:51 - Mapping
15:19 - Site found
16:37 - Conclusion

I explain the various information that is displayed on the multiple DSDPlus windows, and give examples of how to monitor various talkgroups. Given that most scanners are unable to monitor Simulcast (LSM) systems, this $50 union makes for informative and interesting decoding experiences.

There is a lot to a piece of software like DSDPlus, and this video certainly doesn't cover it all, but it will be enough to get you going. You can also pause at various sections to focus on certain windows for information that is being displayed.

The 2020 SDR Guide has now become the 2021 SDR Guide as new videos are released going forward, but they are all contained in the same playlist at
https://youtube.com/playlist?list=PLe5ZKeM2hRBJ2G_Gvt1JnBxqtjHMMej3q

If you are wondering why I use the RTL-SDR v3 silver dongle in many of my videos, you can check out the budget Software Defined Radio shootout episode at https://youtu.be/FDwTGk6c2Qg or see the article at https://frugalradio.com/rtl-sdr-v3/

Time Codes :
00:00 - Introduction
00:40 - First look at DSDPlus Fastlane
01:35 - The FMP Window, Controlling Gain & Setting Frequency
03:55 - Source Audio Window
04:33 - Decode Window
04:59 - Event Log Window
11:52 - Channel Activity Window
18:10 - Tuning Window
18:30 - Current Group & Current Radio Windows
20:15 - Live P25 Trunking with Audio
22:58 - Thanks for watching Frugal Radio

Obtaining the DSDPlus software is not a typical process. There is no shopping cart on the site, you basically make a PayPal payment and add an extra comment. Details are here : https://www.dsdplus.com/dsdplus-fast-lane-program/

As always, thanks for watching the Frugal Radio (FR) channel!

With my free antenna, I picked up signals from thousands of miles away using an Airspy HF+ Discovery Software Defined Radio (SDR).

I also used a NooElec 9:1 Balun for the dipole. It wasn't free, but was a frugal $15 USD. Links below 😃

Timecode :
00:00 - Intro
00:24 - An old cable
02:52 - NooElec Balun
03:52 - Completed Dipole
05:23 - 20m Amateur (HAM radio) band
06:19 - 80m Amateur band
07:00 - Busy 40m contest
07:49 - New York Radio (ATC for aircraft over Caribbean)
08:49 - New York Radio ATC with FlightRadar 24 (FR24) tracking
09:15 - United States Coast Guard (USCG) Weather broadcast from Virginia
09:54 - Gander ATC with aircraft over North Atlantic
10:22 - AM Broadcast reception
11:18 - Conclusion

---Links---
NooElec Balun v2 Barebones :
https://amzn.to/3dkjoUQ (US)
https://amzn.to/3h5tZEk (UK)

NooElec Balun v2 enclosed :
https://amzn.to/35X1hjS (US)
https://amzn.to/3y2e00q (UK)

This video shows me unboxing my RT4 the day it arrived. Further videos describe some of the setup.

Visit https://frugalradio.com/simple-dmr for the plugin link.

Unfortunately Simple DMR does not show any trunking information such as timeslots, talkgroups, or network data. For that you would want to use something like DSDPlus (see Episode 7 of the 2020 SDR Guide at https://youtu.be/WbksL2wqKTw). However this plugin will get you listening to DMR audio fast.

For this video I used SDR Sharp version 1784, along with an RTL-SDR v3 software defined radio.

Enjoy, and as always, thanks for watching the Frugal Radio (FR) channel!

There is some information on how trunked systems work, and you can hear how my SDRs produce better P25 audio on a Simulcast (LSM) system than some scanners.

I use a couple of RTL-SDR v3s and an Airspy R2 in this episode.

For information on the SDR Gear I use, check out https://frugalradio.com/sdr-gear/

Other videos in the series can be found at https://www.youtube.com/playlist?list=PLe5ZKeM2hRBJ2G_Gvt1JnBxqtjHMMej3q

Thanks for watching the Frugal Radio (FR) channel!

This was a free to enter Giveaway. No purchase was required to participate.
YouTube is not a sponsor, or affiliated in any way with this Giveaway.

Frugal Radio is solely responsible for the administration of the Giveaway, and the prize is sponsored by RTL-SDR.COM.

The Giveaway starts on April 4th 2021(12:01am ET) and ends April 17th 2021 (11:59pm ET).
This giveaway has now concluded - thanks for your interest

A random draw will take place on April 18 2021, and the potential winner will notified by email.

The prize is a brand new RTL-SDR L-Band Patch Antenna and an RTL-SDR v3 Software Defined Radio with a combined value of $76.90 as seen in the review video at https://youtu.be/HOPwPWHoc4A

To be eligible to enter you must be :
over the age of 18
a legal resident of the United States, Canada (excluding QC) or the United Kingdom

To receive a valid entry you need to :
be a subscriber to the Frugal Radio YouTube channel (https://www.youtube.com/c/FrugalRadio)
like this video
leave a comment in this video
complete the official entry form.

The Official Rules of the Giveaway can be found at https://frugalradio.com/official-rules

Thanks for your entry!

---- Extra Info ----
The L-Band patch antenna giveaway is sponsored by RTL-SDR.COM.
More details of the antenna can be discovered in my review video at https://youtu.be/HOPwPWHoc4A

I used the following 2 SDRs in the making of this video :
RTL-SDR v3 - https://amzn.to/2NIGGGZ
NooElec NESDR SMArt - https://amzn.to/2YKlh6p

To see a review of these 2 budget SDRs you can watch my Budget SDR Shootout at https://youtu.be/FDwTGk6c2Qg

Of course you can use any SDR that covers the VHF airband to decode ACARS transmissions.

The scanner I use most for airband is the Uniden Bearcat BCT15X which you can find at https://amzn.to/2RcalNE

Software used :
acarsdec - https://github.com/TLeconte/acarsdec
Black Cat ACARS - http://blackcatsystems.com/software/black_cat_acars_decoder.html
AcarSdeco2 - http://xdeco.org/

If you are new to the world of SDR, check out the 2020/2021 SDR Guide videos which will help you discover what your Software Defined Radio is capable of!

As always, thanks for watching the Frugal Radio (FR) channel 😃

More details and direct links to the US & International stores at https://frugalradio.com/bf2020

I can vouch for this sale, as last year I purchased multiple items from the ITEAD.cc site which were delivered to me in Europe at the 30% discounted rate.

This is what Frugal Radio is all about!
Thanks for watching the Frugal Radio (FR) channel 😃

Get started monitoring your local P25 Public Safety Systems with your Software Defined Radio. This walkthrough demonstration is loaded with tips for how to decode P25 systems using the newly updated software.

This tutorial will guide you the beginner through download, configuration, and monitoring using this excellent free software.

LINKS
DSDPlus Public Release : https://www.dsdplus.com/
RTL-SDR v3 Black : https://amzn.to/4p6KNfZ
Radio Reference Database : https://www.radioreference.com/db/
Radio Reference Voice Channel forum (DSD tag) : https://forums.radioreference.com/tags/dsd/

Timeline :
00:00 - Introduction & Breaking News
02:16 - Download DSDPlus free
02:56 - Notes.txt : the bible for learning DSDPlus
03:56 - Create Desktop Shortcuts
04:51 - Edit FMP24 batch file
05:33 - Run FMP24
06:43 - Start DSDPlus Decoding
07:28 - Enter Control Channel Monitoring Mode
08:00 - Gather P25 System Data
09:02 - Closing & Restarting DSDPlus
09:56 - Set FMP24 Window Location
10:59 - Set FMP24 Frequency
12:38 - Monitoring P25 Audio
13:20 - HOLD on a TG
14:39 - ID Talkgroups with RRDB
16:11 - Enter TG Aliases by GUI
17:32 - Enter TGs in DSDPlus.groups file
21:52 - DSDPlus Displaying TG Aliases
24:05 - Summary & Security

Civil Airband (aka VHF airband)
Military Airband (aka UHF airband)
HF Aeronautical communications
Decoding aircraft data on HF and VHF
Decoding CPDLC transmissions and much more!
Good frequency scanners to use, like the Uniden BC125AT and BCT-15X
Recommended Software Defined Radios (SDR)

----Product Links----
Uniden BC125AT (US) : https://amzn.to/3aYQNno
Uniden UBC125XLT (UK) : https://amzn.to/3uDNYzP but may be cheaper at https://frugalradio.com/yourls/125
Uniden BCT15X (US) : https://amzn.to/31Y2F4F
Uniden BCT15X (UK) : https://frugalradio.com/yourls/bct15x
RTL-SDR v3 (US) : https://amzn.to/2NIGGGZ
RTL-SDR v3 (rest of world) : https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/
Nooelec NESDR SMArtee (US) : https://amzn.to/3kuY6q9
Nooelec NESDR SMArtee (UK) : https://amzn.to/3dVxYn2
SDRPlay RSP1A (US) : https://frugalradio.com/yourls/1
SDRPlay RSP1A (UK) : https://frugalradio.com/yourls/2

----Additional Footage / Audio----
Thank you to Martin Pauly for permission to use some footage of the Air Traffic Control Centre. The original video can be found at ​https://www.youtube.com/watch?v=n7zwzOpG5v4

Thanks to Yissachar Ruas for the USCG footage. You can check out his channel at https://www.youtube.com/channel/UCpLEFJYf71lV5H3_vitsqKA?fbclid=IwAR2VjcV8_0YhE1jXUobliMcb3uS1Np_6t1RbF22FhInPEiWHvVUXySnox-w

Helicopter audio sounds courtesy of https://www.freesoundslibrary.com

The Budget SDR Shootout episode referenced in the video can be found at https://youtu.be/FDwTGk6c2Qg

----Timecode----
00:00 - Intro
01:20 - VHF Airband
02:34 - Other Airport Communications
02:46 - Flight Tracking
03:16 - Airband Communications on HF (shortwave)
03:58 - CPDLC
04:29 - UHF Military Airband (Milair)
05:10 - Handheld scanner recommendation (Uniden BC125AT/UBC125XLT)
06:40 - Base scanner recommendation (Uniden BCT15X)
08:07 - Recommended Budget SDRs (RTL-SDR v3 / Nooelec SMArtee)
09:22 - Recommended 'step up' SDR (SDRPlay RSP1A)
10:06 - Get ready for the next episode!

As always, thanks for watching the Frugal Radio (FR) channel 😃

The scanner costs more than double the price of the Alinco.

I didn't actually think of testing the DMR decode while I was there - perhaps I'll try that next time I hike the trails.

Goes to show that frugal radios can outperform more expensive units!
Prices correct as of 31st May 2020 from HRO.

Have you noticed particularly good reception on your Alinco DMR radio? Comment below and let me know what you've discovered...

You can buy the RTL-SDR v3 in the US at https://amzn.to/2NIGGGZ
Worldwide sales at https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/

To see the BCT15X tested against an AirSpy Software Defined Radio and find out how to set up the Frequency Scanner plugin check out : https://youtu.be/9AR-QemkSic

You may also be interested in the performance of the Nooelec $30 SDR : https://youtu.be/Mbj-TdKml1k

Freq Scanner plugin can be found at http://www.rtl-sdr.ru/page/obnovlen-skaner-4 but I recommend beginners download the Community Plugin Package of SDRSharp at https://airspy.com/download/

Thanks for watching the Frugal Radio (FR) channel!

I already had some supplies at hand, and it only took about 30 minutes to construct.

I used a NooElec Balun 9:1 barebones (https://amzn.to/3dkjoUQ) as my transformer, although I would have preferred an enclosed version (https://amzn.to/35X1hjS).

My Software Defined Radio was the Airspy HF+ Discovery, and I also used the newly released SDR# v1834 that came out on New Year's Day 2022.

I used an RTL-SDR AM Reject filter to cut out the horrific MW interference in my area. You can get these from https://amzn.to/3qG0Owu

Other items used are listed below :

Speaker Wire - https://amzn.to/3eKOq8U
500ft RG6 cable - https://amzn.to/3EPqN9H
100m RG6 (UK) - https://amzn.to/3HkXhdE
25 pack F connectors - https://amzn.to/3mScNpD
F female to SMA male adapters - https://amzn.to/32WOBeE

Overall it was a fun Amateur Radio antenna project, and the ground loop did in fact work as you can see in this short video!

Previous Airspy YouLoop review can be found at https://youtu.be/Qzj_IX6gh1c
Please note that the YouLoop requires an HDR receiver such as the Airspy HF+ Discovery Software Defined Radio used in this video.

Stations were ID'd using several websites, including
https://en.wikipedia.org/wiki/Very_low_frequency
https://en.wikipedia.org/wiki/List_of_VLF-transmitters
https://www.sigidwiki.com/wiki/Category:VLF
https://www.smeter.net/stations/vlf-stations.php
and a cached page from MWList (https://webcache.googleusercontent.com/search?q=cache:uhHKke0aqMUJ:https://www.mwlist.org/vlf.php+&cd=1&hl=en&ct=clnk&gl=uk&client=firefox-b-d)

I'm not overly familiar with what VLF and low LF signals should be receivable in Europe, so I'll leave it for you to comment on whether you think I was getting good performance from the YouLoop or not.

I look forward to your comments 😃

Thanks for watching the Frugal Radio (FR) channel!

Learn how to use the antennas that came with your RTL-SDR blog bundle or Nooelec NESDR SMArt bundle!

Details also provided on other popular antenna types like Discones and Dipoles, and there are details on how to make your own dipole.

PRODUCT LINKS (Amazon links give me a small commission if you make a purchase directly from here).

Nooelec NESDR SMArt v4 bundle :
https://amzn.to/2BXPyWg (US)
https://amzn.to/2WH0LCv (UK)

RTL-SDR v3 bundle :
https://amzn.to/2NIGGGZ (US)
https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ (rest of world)

Nooelec SMA Antenna adapter kit :
https://amzn.to/3jLAXyJ (US)
https://amzn.to/2CUtgpi (UK)

RTL-SDR SMA adapter kit :
https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ (rest of world)

Frugal Tram 1410 Discone :
https://amzn.to/3jNPHx0 (US)

Frugal ScanKing Discone :
https://amzn.to/311Ttuq (UK)

Thanks for watching the Frugal Radio (FR) channel!