“Today i have received the new SDR receiver from SDRplay, the RSPdx and was eager to turn it on and do some tests receiving on HF and VLF. Although at the moment my mini-whip antenna is not operational, I have connected some 20 meters wire as an antenna and start listening on VLF, LW, MW and HF… I have to say that SDRplay team did a good job with this SDR-receiver, putting better filters and redesigning front-end to improve dynamic range and enhance overall performance in relation to its predecessors RSP2 and RSP2pro. The new RSPdx is very good indeed. Especially on HF and below. The RSPdx has new features like HDR (High Dynamic range) mode for reception within selected bands below 2 MHz. HDR mode delivers improved intermodulation performance and less spurious responses for those challenging bands. In this video I am using: – RSPdx SDR receiver; – latest SDRuno v1.33; – Only one half of the dipole antenna for 80 m (20 meters wire, because the other half of the dipole was pulled off by the accident). The coaxial cable is 30 meters long”
News
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more
ARRL Continues Its Efforts to Preserve Amateur Radio Secondary Use of the 3 GHz Band
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subc... Read more
![Why Ham Radio [ ARRL Video ]](https://qrznow.com/wp-content/uploads/2021/10/hq720-1-265x168.jpg)
Why Ham Radio [ ARRL Video ]
Josh Nass, KI6NAZ, of @Ham Radio Crash Course talks about what ham radio is, and answers the question…. “Why Ham Radio?” Read more
High Speed Telegraphy 2021 in Montenegro
September 10-14, 2021, the 17th World Championship High Speed Telegraphy was held in Montenegro. The event was organized by MARP (Montenegrin Amateur... Read more
Resonant vs Non-Resonant Antennas
Richard, AE6XO, is wondering what the difference is between resonant and non resonant antennas. Why no just get a non resonant and use a tuner? He ask... Read more
Data on Number of Radio Amateurs Worldwide Needs Updating
The oft-cited figure of 3 million radio amateurs worldwide may need updating. That number was what the International Amateur Radio Union (IARU) publis... Read more
VHF
Radioddity DB20-G Compact 20W GMRS Radio
Let’s take a look a this mini-mobile and compact GMRS Mobile Radio from Radioddity. Rated at 20-watts, let’s test the power output and see... Read more
What Ham Radio Programming Software Should You use?
“I’m taking a 10,000 FT look at three types of ham radio programing software. There’s so much to unpack here that a quick overview i... Read more
TIDRADIO BL-1 Bluetooth Baofeng Programmer – Flawed Execution, Poor Software
“The TIDRADIO bluetooth programmer application is one of the worst aplications I have had to deal with in ham radio. Its odd and makes no sense... Read more
Best Handheld Ham Radio 2021
Today I go through my top 15 Handheld Ham Radios for 2021 – as an update to my Best Handheld of 2020 video, this is a list of both new and exist... Read more
Yaesu REVEALS the FTM-6000R Dual Band Mobile Ham Radio
Brand new from YAesu, dropping in October of 2021, is a new dual band Ham Radio, the FTM-6000r. This was announced today, so I wanted to get some rese... Read more
YAESU announces new Dual Band (2m/70cm) FM Mobile Transceiver! FTM-6000E
FTM-6000E – 50W transmitting power – Reception range from 108 to 999.995 MHz – New “E2O-III” user interface – Remo... Read more
Alinco DR-MD500T Dual Band DMR Mobile Radio
New from Alinco is the DR-MD500T, then dual band DMR mobile version of their popular dual band DMR HT. DR-MD500T Dual Band Mobile DMR VHF/UHF Portable... Read more
Antenna
Wolf River Coil vs End Fed Half Wave: Brunet Island State Park, WI POTA K-1442
You asked for it, here it is: a live A/B test of the Wolf River Coil vs the Chameleon CHA-LEFS End Fed Half Wave antenna. Which will win in this Parks... Read more
Phasing Antennas for Directionality
Jared, N0SPC, is the only ham in his country, and he has a question regarding phasing. He wants to know if he can use a phased array of mobile whips t... Read more
Chameleon CHA-MPAS 2.0 Portable Ham Radio Antenna System
The Chameleon CHA-MPAS 2.0 just might be the best portable Ham Radio antenna that you can get today, due to its versatile configurations and compact s... Read more
Using FT8 to demonstrate Antenna Orientations
One man’s observation of different radiation patterns that evolved from choosing different antenna installation orientations. What are your thou... Read more
Improving Suburban HF Vertical Antennas
HF verticals are very popular for the smaller suburban gardens. How do they perform and are there any improvements you should consider? Read more
Reduce Common Mode Current (CMC) with a Easy to Build Choke
Common Mode Current can really mess with RFI and cause interference in the shack. In addition, you could also be receiving unwanted interference on th... Read more
Building the BuddiHex Hexbeam | Best Portable Ham Radio Antenna
Today I go through all of the steps and pieces for building the BuddiHex Hexbeam antenna from Buddpole. This might be the best portable ham radio ante... Read more
Equipment
Release the KrakenSDR!
KrakenSDR is now available for crowdfunding on Crowd Supply. Thank you to all interested parties for your patience while we navigated recent pandemic-... Read more
XPA125 Tuner – Any good?
Today I take the XPA125 Tuner and put it through its paces with a 9:1 EFRW Random Wire Antenna Read more
Xiegu X6100 HF/50MHz Portable SDR Transceiver
Xiegu X6100 is a revolutionary self-contained 10 watt HF and 6m SDR transceiver with a large color display, automatic antenna tuner and a built-in hig... Read more
QDX 4-band 5W Digi transceiver
The “QDX” (QRP Labs Digital Xcvr): a feature-packed, high performance, four-band (80, 40, 30, 20m) 5W Digi-modes trans... Read more
Tech-out of the Xiegu XPA125B Auto Tuner + Amplifier
Today we take a look at the Xiegu XPA125B QRP Amplifier and Auto Tuner hooked up to the Icom IC-705. This amp will work with a variety of QRP rigs inc... Read more
YAESU M-90D Desktop Microphone: UNBOXING
Yaesu M-90D Desktop Microphones utilize a finely tuned dynamic element to deliver rich low to mid frequency response, desirable for a clear and concis... Read more
Choosing Lightning Arresters
Robert, KG5BJF, is getting ready to set up his station and his question is “How do you determine which lightning arresters are the correct ones... Read more
