Notices tagged with radio, page 21

My friend gave me a fully functional antique frequency counter. I don't need it with my oscopes and spectrum analyzers, but you have to admit this thing is pretty sexy.

I'm pumping a 12 millivolt peak-to-peak sine wave into this thing at 10MHZ. That seems to be the bottom of it's resolution range. Much below that and the counter drifts. Not sure if that's the counter or my equipment though. I am using a cheap signal generator for this test.

#EE #Electronics #RF #Radio #HamRadio #HAM

All the antenna on a Boing 747.

#RF #RADIO

A sneak peek at the Schematic for Version 2.0 of the ROES meter (A SWR meter with VNA capability).

#AmateurRadio #electronics #Radio #ham #Engineering #RF #HamRadio #EE #Electronics #Arduino #AVR

Cómo escuchar la radio en la consola de #Linux https://victorhckinthefreeworld.com/2018/12/21/como-escuchar-la-radio-en-la-consola-de-linux/ #GNU/Linux #tutorial #linux #radio #GNU

Why AM radio sound is so pleasent to hear and so situable for talk radio? My hypothesis is that its because it has only 50dB of dynamic range, unlike FM radio that is 70-80dB. So it overlaps much less with ambient sounds (low and high pitch) so you can pay attention easily to ordinary machinery sounds, phone calls, etc. AM broadcasts are aften equalized to be sound rich in the human voice frequencies, so it has less brain demand than FM's wider range. What do you think? #am #mw #radio

My new DIY fake leather case for my Eton Mini radio. I used an old schedule agenda cover to do it #radio #swl #mwl #diy

My new Eton Mini Grundig Edition just arrived and it is beautiful. Nice ear sleeper and pocket MW and SW receiver. It has stereo headphones and it is great for listening to MW in the bus #radio #hamradio #swl #mwl

Finally i got to measure and calibrate my homemade SlimJim antenna for VHF. I got SWR under 1.2 in the middle #hamradio #radio

Listening to some CB chatting on ch 41 with my Tecsun PL-880 #cb #hamradio #11m #radio

Any idea how te pre-populate a WebSDR with custom frequency and other options? it seems not possible to do it passing the form fields into the URL #radio #sdr

Listening to some CW chat in 40m with my Tecsun PL-880 and my tri-band external antenna. Decoded with FLDigi under Linux #swl #shortwave #40m #cw #radio

Listening to FT8 digital mode transmissions in 40m with my Tecsun PL-880 and my tri-band external antenna. Decoded with WSJT-X software for Windows. I cannot make it work on Linux, it seems my Debian 8 is too old for this. #swl #shortwave #40m #ft8 #digitalmode #radio