Here are some things I found useful or interesting on Twitter in the last couple of days…Dan
- Brush off loose corrosion.
- Add lemon juice or vinegar and continue brushing.
- Scrape off what’s left.
- Clean battery compartment.
- Wipe with a clean cloth.
NanoVNA presentation
Wondering what you can do with one of these neat, little devices besides measure SWR? Well, this presentation from Dan, KW4TI, will give you some ideas, including:
- Find the electrical length of a piece of coax.
- Measure the value of components.
- Measure the impedance of a balun.
- Make antenna measurements like you would with an antenna analyzer.
Chinese SDR
Ailunce is giving folks a sneak peak at their HS2 HF VHF UHF SDR Transceiver. It boasts a frequency range of 300 kHz – 1.6 GHz, a built-in network port for remote operation, and an output power of 30 W on HF among a host of other features. And the price? Only $500.
If this thing actually works, it could be a very attractive purchase. We’ll find out in September.
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