“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
DIY Weather Satellite Ground Station
Sasha M6IOR and Sophie M6NYX have made available a Guide for the reception of NOAA satellite images using software defined radio on Windows or MacOS.... Read more
IARUMS: Russian-Ukrainian radio war is remaining on a high escalation level
The new newsletter of the IARU Monitoring System (aka ‘Intruder Watch’) has just been published. The most frequently reported intruders on... Read more
SP3L Wins the July QST Cover Plaque Award
The winning article for the July 2020 QST Cover Plaque award is “A Vertical End-Fed Dipole with a Folded Stub” by Jacek Pawlowski, SP3L. The QST Cover... Read more
Maritime Mobile Service Network Comes to the Aid of Vessel in Distress
The Maritime Mobile Service Net (MMSN) on 14.300 MHz came to the assistance of a sailing vessel on June 25. MMSN control operator Steven Carpenter, K9... Read more
AMSAT Responds to Allegations of Unauthorized Legal Expenses
The Radio Amateur Satellite Corporation (AMSAT) has been made aware of public comments alleging financial mismanagement in the form of “unauthorized”... Read more
VHF
National Hurricane Center’s WX4NHC Annual Station Test is Successful
On May 30, operators at WX4NHC at the National Hurricane Center (NHC), working from home, conducted the annual readiness check of the station and of o... Read more
![VHF propagation video released [ RSGB ]](https://qrznow.com/wp-content/uploads/2020/06/VHF-screenshot2-265x168.jpg)
VHF propagation video released [ RSGB ]
Steve Nichols, G0KYA – Chair of the RSGB Propagation Studies Committee – narrates this presentation about VHF propagation. The presentatio... Read more
Low cost 10Ghz EME Rx System
1 – Low cost 10Ghz EME Rx – The LNBF 2 – Modifying the LNBF 3 – Tuning the LNBF 4 – Pictures and PlotsNOTE: This... Read more
Amazing opening on 144 MHz from Cape Verde Islands to Poland
On Friday the 29th of May 2020, there was an extensive Sporadic-E opening across Europe which reached as high as 144 MHz allowing stations across the... Read more
RADIODDITY GS-5B ANALOG RADIO | 5W | DUAL PTT | BLUETOOTH PROGRAMMING | S-METER | USB CHARGING
Professional VHF UHF Radio: Dual band, dual watch, dual standby, up to 128 channels. Equipped with an 8.9-inch long antenna, this solid 5W radio can r... Read more
Antenna
$35 Airspy YouLoop Passive Antenna Review
HF Portable & Flexible Receive Loop Antenna Covers HF frequencies (10 kHz to 30 MHz) Usable on VHF up to 300 MHz as a folded Dipole Maximum power... Read more
Moonraker GPA-RX HF Antenna 2 – 90 Mhz
Key Features/Specifications: Type: Aluminium Vertical with Unun matched base Frequency RX: 2.0-90MHz Impedance: 50 Ohms Base connection: SO239 Length:... Read more
Erecting the EFHW-8010 End-fed Half Wave Antenna and Initial Testing
EFHW-8010™ Multiband End Fed Half Wave Antenna 130 Feet (39.6m) long NO TUNER needed! Perfect for ALE HFLink, ARES, EMCOM … Resonant on 80/40/30/20/17... Read more
Antenna Design and Measurement Software
AnTune software assists in designing antennas and RF impedance networks. Their software runs on PC/Windows and can communicate with a Vector Network A... Read more
Equipment
Andromeda 100W Transceiver -Apache Labs
Sneak peek at the Andromeda 100W Transceiver…… 10th GEN Intel 6 Core i7, 7 inch built in touch screen and an option to add up to two Exter... Read more
ICOM LC-192 for IC-705
Making your field operation more fun and convenient with the LC-192, the IC-705’s utility backpack. The IC-705 fits perfectly in the optional LC-192 m... Read more
Perseus SDR – EladUSA
Description Buy from EladUSA with Factory Support from Microtelcom PERSEUS is a software defined VLF-LF-MF-HF receiver based on an outstanding direct... Read more
Assembled a prototype of Geckokapula V2 a dualband 70cm/13cm handheld FM/CW radio
Assembled a prototype of Geckokapula V2 a dualband 70cm/13cm handheld FM/CW radio. It also does AM and SSB reception in addition to FM and CW. An awes... Read more
