AE5X: QMX+

Amateur Radio Blogs

EI7GL

Notice: Upcoming HAARP ionospheric tests from Alaska - 20th to 24th Oct 2026 - The *High-frequency Active Auroral Research Program* (HAARP) is based in Alaska and it's a high-power, high frequency (HF) transmitter for studying the i...
17 hours ago
VE9KK

WAG contest 2026 - It was time for a relaxing weekend behind the radio and key. The annual running of the Worked All Germany (WAG) Contest was on the calendar for this wee...
17 hours ago
K4SWL

An Unexpected Morning Activation with WJ3FF at William B. Umstead State Park - by Thomas (K4SWL) On Saturday, September 12, 2026, I was in Raleigh, North Carolina, and had promised one of my daughters that I would take her to a few ev...
20 hours ago
DX-World

FK/KD6XU – New Caledonia - Following on from his recent YJ0BP – Vanuatu activity, Barry KD6XU has now reached New Caledonia. Today, he was QRV as FK/KD6XU on 20m CW from POTA NC-0042...
2 days ago
RTL-SDR

LakeShark Update: Using an LR2021 LoRa Chip as an SDR for Portable P25, POCSAG and FM Reception on the ESP32-P4 - Back in September, we posted about LakeShark, Samuel Reynolds’ (aka SAMS0N1TE) T-Display P4 ESP32-P4 firmware that turns a USB-connected RTL-SDR into a han...
3 days ago
WB3GCK

Round Two with the GRA-CFP2600 - I made an early-morning run up to Evansburg State Park (US-1351, KFF-1351) for a quick activation. My plan for this activation was to try out my Gabil GRA-...
4 days ago
PE4BAS

Winslow J-37 Signal Corps trainingkey - The third straightkey in my series about the keys I got from the real estate of PA3BCB Gerard. This time a J-37 key from the cold war era. Earlier k...
1 week ago
VE7SL

The '36 George Batterson CW QSO Party - Summary - The third annual *George Batterson Memorial CW QSO Party* has concluded and the results are coming in! The "*GB*" was introduced to honor George Batterso...
1 week ago
LZ2JR

New CAT manual is ready to download - New CAT manual v.1.04 is ready in download section New functions are added: MW, MR and MC – functions for read, write/delete and recall RGO ONE memories; E...
3 weeks ago
M7MCQ

ICOM IC-7110 (SEVENTY ONE TEN) - It's autumn 2026 and my pre-order for the new IC-7110 has been submitted. It's just a case of waiting for Icom to start production and deliver stock to t...
3 weeks ago
LA3ZA

The magic of GPS time for the QMX+ - It's almost magical to watch how UTC time drops down from the GPS satellites onto the QMX+ ! Here's 1.5 minutes condensed to only 11 seconds showing just...
3 weeks ago
KA7OEI

The Comcraft CTR-144 FM transceiver - A "multi-mode" solid state 2 Meter transceiver from the early 1970s. - *ComcraftLogo* Back in 1972 an ad appeared in the Ham magazines for something that probably seemed amazing at the time: A *solid state* transceiver tha...
4 weeks ago
IK1ZYW

Majestic RT-195 FM/DAB radio gets a new battery - While I was tidying up my lab desk I found two 18650 cells. I forgot their origin. I usually test used 18650 batteries and write their residual capacity ...
5 weeks ago
SM0TGU

Shuttle NE10N Mini PC - After many years with a Mini-ITX based Home Server with Asrock J4125-ITX fanless mainboard I needed to upgrade the system as Windows 11 has got kind of slo...
1 month ago
PA2RF

Regenerative receiver - A regenerative receiver uses positive feedback to increase amplification significantly. The principle was invented around 1912 by Edwin Armstrong, so th...
2 months ago
PA1EJO

HF Receive Loop Antenna and Man-Made Noise Detector - At both radio clubs where I do my contesting and meet with fellow amateurs, a frequent topic of discussion is the noise we all experience on the shortwave ...
2 months ago
ON5ZO – OQ5M

Halfway 2026… - Yes I’m alive. Yes I still do radio, contests, DX… However not as much as usual because of hectic times. And I lost interest in blogging. I just did some a...
3 months ago
N4KGL

Registration is Open for the April 4th, 2026 RaDAR Rally - The RaDAR Rally is an exciting test of your portable operating skills on the first Saturday of April and November. Make five contacts and move! See www.rad...
7 months ago

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