Fellow Coastal Ham Radio member VE7KWK passes along a link for those of us who like to get out the soldering iron and create a new toy to play with.
CBC News interviews Mike Johnson VE1MWJ who is trying to drum up enthusiasm for ham radio, “our numbers are dwindling” he says
A ham radio probably isn’t the first form of communication a person thinks about in an emergency, but sometimes, it’s the only one that works. Continue reading
A large canyon-shaped hole is bisecting the sun’s atmosphere, spewing a stream of solar wind toward Earth. Continue reading
For immediate release:
I presented some radio content at some ham clubs regarding SOTA and NVIS activities. What became apparent that there is confusion because NVIS requires a different antenna configuration (basic dipole 10 feet off the ground) that makes it all confusing? It is not. Read onward please
Bonnie has done a lot of research in NVIS use out in the field.
Sat Sep 22, 2018 12:57 pm (PDT) . Posted by:
The pronunciation of the NVIS initialism as “Enn-Viss” is probably the most common, or else spelled out: “Enn-Vee-Aye-Ess” (N.V.I..S)
I’ve also heard ops say: “Knee -Vuss” and “Nev-Iss”.
Give it some time, someone will call it Knee Vice 🙂
NVIS IS ABOUT FREQUENCY CHOICE
NVIS: Frequency choice is way way more important than antenna height.
Often, just moving 250 kHz can make a huge difference in NVIS signal.
Commercial and Governmental stations that intentionally utilize NVIS
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Dog Park Software is pleased to announce that version 1.13 of dogparkSDR has been released. Continue reading
As promised, the WSJT-X Development Group has announced a new “candidate release,” WSJT-X 2.0 rc1. This beta version of the popular digital mode suite incorporates many new FT8 and MSK144 features that will be of particular interest to the Amateur Radio contesting community. It incorporates all FT8 DXpedition Mode changes already developed in WSJT-X 1.9.1. Continue reading
A View of my findings on the Icom 7300 HF SDR Radio
- This is the first Japanese full direct digital sampling SDR based HF radio
- Radio draws 21 amps at 100 watts output
- Comes with the standard HM-219 hand mic which provides good audio
- Direct Digital sampling us used on receive and transmit
- RF input is through a diode switched bandpass filter – 15 of them
- The IF is 36 Khz
- 7300 uses the same DSP chip as the Icom 7100
- High Stability TXCO is built in 0.5 ppm stability
- Inside layout is clean
- Integral heatsink with a quiet fan
- Multicolor touchscreen display is the big selling point – but I still want knobs for power output and band change. The MULTI offers power out and mic gain.
- QWERTY keyboard on the display makes memory name super easy
- I miss the front panel CW key jack
- Love the 8 pin…
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Just some quick thoughts
It has more dynamic range than the 7300 and the 756 Pro Series
The two receivers being independent using DigiCell technology is just wonderful
The bigger real estate is great to use in Contests
It is a step up from the 7300 and the Pro series radios
Some trickle down technology form the higher radios 7800, 7851
CW relay chatter is non-existent
CW Audio peak feature is nice (not on the 7300)
A serious operators and those who need reading glasses
Appliance operators will be happy with the 7300 and can save money or go buy a Icom 7100 and a 5100 and a 51A with the difference
Not for the Go Box unless its in a Motor Home
Remember the 11m mod will void your warranty and the RF filters may be tight not allowing much power on 11m but Hey I am not going…
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Electronics Notes has just launched a new page on “How to Use an SWR Meter.” As there are many misconceptions and myths about SWR, we have tried to look at the topic and detail how to use an SWR meter and also how to interpret the results.