PH2LB shack on the internet. - Bit banging (how fast can you go in code)

Spring cleaning in my shack. While stocks last, I'm giving away sets of 2 old stock PCB's for my QRP-Labs broadcast band filter for postage cost only. Checkout: https://www.ph2lb.nl/blog/index.php?page=bc-filter and if you like it, fill in the webshop order form http://ph2lb.nl/webshop/order.php to get yours.

Mar 28, 2023

New K2 mods and articles.

Category: General

Posted by: lex

I have added new K2 mods and articles to this website . . . . (continue reading)

Jan 18, 2023

I'm now on HamShack Hotline.

Category: General

Posted by: lex

I'm now on HamShack Hotline 420-000-0225 (or the short number 84225)

Continue reading . . .

Dec 25, 2022

Measuring output power

Category: General

Posted by: lex

When you want to measure output power and don't have a power or dBm meter, but do have a oscilloscope and a 50 ohm load, you good to go.

Check out this page on which I describe how to do it.

Continue reading . . . .

Bit banging (how fast can you go in code)

Nov 29, 2018

CW zerobeat led for my uBitx.

Category: General

Posted by: lex

The Yaesu FT897D has a visual zerobeat indicator when the rig is running CW. The LED will light up when you are exact (or atleast close) on frequency with the transmitting party. Having a little room left on the extension PCB in my uBitx, I thought it would be a nice adition to have one based on a LM567 tone detector.

Continue reading...

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