Tag: Radio

Got my TYT MD380 all programmed

Found the New England code plug for the radio. A code plug is basically a file with all the zones, repeater, simplex, etc. broken out. Plus I can add zones too.

That makes it really easy to program. Just open the code plug, connect the radio and write the data. Simple. Finding that New England code plug was hard though. Just go to the New England Digital Emergency Communication Network (NEDECN) and once there click on the DMR Downloads link on the left. Then click on DMR Code Plugs, and then Tytera (Which is TYT) and then select your code plug for either VHF or UHF. Then open the MD380-G software and then File/Open the code plug you just downloaded.

Connect your radio to the computer using the USB cable. Then Ctrl-W to write the code plug to the radio. So I now have MA, NH, ME and VT in my radio. And I’ll edit the code plug to hit the two DMR sites here in RI, one in Smithfield which is about 10 miles from me, the other in Bristol which is also about 10 miles from me as the crow flies.

And it works for me as I commute into Boston daily. So I’ll keep the MD380 with me too.

***UPDATE***

I had to program my call and DMR ID into the radio. It’s in the general settings.

Radio Astronomy – a younger science

So I’m reading the Committee for Radio Astronomy Frequencies Handbook. It’s a short 171 pages long and I’ll include it here if you want to read it too. CRAFhandbook3

Now radio astronomy is interesting. You can sort of credit Bell Labs with indirectly discovering the field as far back as 1932 when they were working on countering the effects of noise in 10m communications systems. But they didn’t see it as  a science, other than when the experimenter pointed his detector at the center of the Milky Way he noted a spike in activity.

Then in the mid 1960’s Penzias and Wilson discovered the cosmic background radiation.

And now the equipment necessary to do a little radio astronomy of your own is fairly inexpensive.

But you’ll ask the question – why listen to those radio waves? Well, it all depends. Just about everything radiates energy.  For example we humans radiate in the infrared band. We can’t see it, but special cameras can.

Well, in addition to radiating visible light lots of stars including our own sun radiate a whole lot of RF energy. In essence the entire range from 1Hz to the terahertz range is where things really radiate, it’s all light. Even if we can’t see it with our own eyes.

In fact one of the formula for determining the effect of a very large baseline interferometer has a wavelength/300. Now I know from amateur radio to get the wavelength you divide 300 by the frequency. It’s the same formula. One will give you the magnitude, the other the wavelength.

 

 

Music then and now

Back in the day (1985 to 1987) I was a radio personality on a disused college radio station that we rolled in on and took over for a bit.

Lately I’ve been listening to the City Soul podcasts produced by KBCS 91.3FM in Seattle. Funny, I was at WDOM 91.3FM in Providence and our program was called the Soul Patrol.

Anyhow I used to always go off the air with Marvin Gaye’s “I Want You”. That was my signature signoff. Now in the 80’s that song was at least 20 years old then, but damn it still resonates with me. I’m listening to a Bling46 remix of the song and damn, I just shut my eyes and listen and it still send a tingle through my body.

Then of course there’s Bugz in the Attic’s cover of Yarbrough and Peoples “Don’t Stop the Music”. Nice stuff. I love the City Soul program, it’s got new stuff, re-takes on old stuff, and I just totally dig it.

Now I do videoblogs for myself, usually more rants against the status quo than anything else.