A new graphing tool has been developed by Jim, G3YLA of the Propagation Studies Committee to show the near real-time critical frequency over the UK and the predicted maximum usable frequency over different paths.
A feature on how to use the free tool appears in the July issue of RadCom.
But if you want to try the critical frequency tool on your own it can be found at www.convectiveweather.co.uk/ionosphere and there are useful help files to get you going.
Today I go over the features and do some power testing on the Baofeng UV-10R Dual Band HT Ham Radio Specification: Brand Baofeng Power 10W Frequency VHF: 136-174MHzUHF: 400-520MHz Channel 128 Battery capacity 8800mAh Working voltage 7.2V Si... Read more
“We are live with Ray Novak, N9JA, Sales manager of ICOM America with Tim, K3LR. What questions do you have for Ray?” Read more
Here we build the Hermes Lite 2 HF SDR and test it’s receive capabilities. Read more
RADIODDITY QR20 SDR RADIO | FULL BAND CW SSB RTTY AM FM DMR | 100KHZ TO 2GHZ | AUTO ANTENNA TUNER | MAX 20W
The Radioddity QR20 is an ultra-portable full-frequency full-mode SDR radio with a reception from 100kHz to 2GHz and transmit from 160m to 70cm. The o... Read more
Today we go over the newest Android DMR device from RFinder, the P2 tablet with a 7″ screen. This is a dual band DMR and Analog radio built into... Read more
Short overview of the BP-307, a new high capacity 7.2V / 3350mAh (typ.) Li-Ion battery pack designed for Icom’s latest range of IP, LTE radio and sele... Read more