There are no ads, please add some
KD0CQ has recently been experimenting with trying to receive signals at frequencies of up to 4.5 GHz with an RTL-SDR and downconverter. Since a typical R820T/2 RTL-SDR’s maximum frequency limit is about 1.7 GHz, an external downconverter circuit is required.
A downconverter converts high frequencies down into the range receivable by the RTL-SDR. For example a downconverter with a 2.4 GHz local oscillator would convert a 3.5 GHz signal down to 1.1 GHz, which can be easily received by an RTL-SDR….MORE
More
Source: ARRL.org The Amateur Radio Parity Act of 2015” — H.R.1301 — has been introduced in the US House of Representatives. The measure would direct the FCC to extend its rules relating to reasonable accommodation of Amateur Service... Read more
![Restoring Old Radios [ PodCast ] The Doctor Will See You Now! – ARRL](https://qrznow.com/wp-content/uploads/2016/12/03-90x60.jpg)
More
Coil-loaded 40/80 Meter Inverted V Dipole Antenna by KG0ZZ
This 40 and 80 meter inverted V antenna is made with loading coils. It is a full size antenna on 40 meters and a shortened 80 meter antenna. The anten... Read more
CQ WPX Contest CW : May 30 – 31
Photo by PY3VK – QTH ZX5J – PT5J – PP5JR 2020 CQ World-Wide WPX Contest SSB: March 28-29, 2020 CW: May 30-31, 2020 Starts: 0000 UTC... Read more
Status Report: The Amateur Radio Parity Act of 2017
The Amateur Radio Parity Act of 2017 – S. 1534is alive, but with legislative action slowed to a glacial pace on Capitol Hill in recent months, there’s... Read more
New Ham Radio Deluxe v6.7 now available for download
HRD Software is proud to serve over 30,000 ham radio customers in 136 countries. Thank you to our customers in Afghanistan, Anguilla, Argentina, Austr... Read more
Motorola Two-Way Radio for Use Extreme Conditions
Motorola Solutions continues to design digital radio solutions for firefighters and has added the APX 8000XE two-way radio and APX XE500 RSM to its li... Read more
Day 1 with the ICOM IC-7610
Fred Lloyd, AA7BQ and Steve Gross, W7SCG give us a first look of the IC-7610 on the first day of its North American debut. Read more
4 New Bands in Brazil (PY) approved !
“Future regulation will bring new tracks for the Amateur Radio Service in line with ITU and IARU guidelines. The Board of Directors of Anatel ap... Read more
The K7RA Solar Update 11/30/2015
ARRL Headquarters was closed on Thursday and Friday for the Thanksgiving holiday, which delayed this bulletin by several days. This week we return to... Read more
Geomagnetic storm warning for March 23
GEOMAGNETIC STORM WARNING: NOAA forecasters say there is a 75% chance of geomagnetic storms on March 23rd when a coronal mass ejection (CME) is expect... Read more
The K7RA Solar Update
Like June 24-27, July 7 had a new spot from cycle 25, according to the magnetic signature. This week’s brief appearance was last Sunday with a daily s... Read more
Icom ID-4100 D-Star – Review
Since the introduction of D-STAR in 2001, Icom has been committed to improving and advancing the D-STAR experience. The ID-4100A and it’s advance tech... Read more
New firmware for ICOM, D-STAR compatible handy device and 6 mobile devices will be released simultaneously
On November 6, the new firmware was released on the following six models (the version name of the released firmware in parentheses). In addition, new... Read more
Yaesu DR-2XE Repeater – C4FM/FM VHF/UHF Digital
Yaesu DR-2XE Repeater – Modulation Modes: Conventional FM, C4FM Digital – Automatic Mode Select (FM/C4FM) – 3.5″ Full Color T... Read more
First contact made on 40 MHz between Ireland and Lithuania
On Wednesday the 29th of April 2020, EI4GNB in Ireland managed to complete a digital FT8 contact with LY2YR on 40.220 MHz on the new 8-metre band. No... Read more
Small APRS Transceiver with MicroAPRS by DB1NTO
Small APRS Transceiver with MicroAPRS by DB1NTO Read full Article from DB1NTO : Read more
VK9MAV – Marion Reef/Diamond Islets, OC-267
OC-267 Marion Reef/Diamond Islets It is NOT Mellish Reef, DXCC – just Australia. DXpedition to OC-267, Coral Sea Islands Territory North The exp... Read more
V63KI Micronesia
QRV information Between 20 Mar 2015 and 25 Mar 2015 Only SSB. 14,18,21,24,28MHz QSL information Only Direct via QSL manager Ple... Read more