My subscription to Life expired, but I still have a subscription to Mad.

Showing posts with label Mac OS X. Show all posts
Showing posts with label Mac OS X. Show all posts

Monday, June 13, 2016

Nine New Ones!

Tuning around the AM band with my new ELAD FDM-S2 SDR receiver last week, I logged three new stations:

- WGYM on 1580 kc in Hammonton, NJ, transmitting 1 kW 168 miles to the SSW.

- WACK on 1420 kc in Newark, NY, transmitting 500 W, 232 miles to the WNW.

- WQFG689 on 1710 kc in Jersey City, NJ, transmitting 10 W, 85 miles to the SW. WQFG689 is a TIS for Hudson County, NJ.

Friday night, I tried recording the whole AM band for two minutes at 10 PM EDST. I spent a few hours listening to the recording and logged six new stations:

- WNEB on 1230 kc in Southbridge, MA, transmitting 1 kW, 73 miles to the NE

- WICH on 1310 kc in Norwich, CT, transmitting 5 kW, 45 miles to the WSE.

- WEMG on 1310 kc in Camden, NJ, transmitting 250 W, 162 miles to the SW.

- WWRU on 1660 kc in Jersey City, NJ, transmitting 10 W, 85 miles to the SW.

- WTTM on 1680 kc in Lindenwold, NJ, transmitting 1 kW, 162 miles to the SW.

- CKAT on 600 kc in North Bay, Ontario, 455 miles to the NW.

All were heard using an 80 meter inverted Vee antenna.

I am very happy with my new radio, but there is a problem: interference from the MacBook Pro battery charger/power supply. The interference is so strong that only the strongest AM stations are above the noise.

The cable between the charger and the computer is the problem because the noise disappears completely when I disconnect the cable from the computer even though the charger is still powered.

I installed ferrite cable clips on the cable, but that made no difference.

I wrapped the cable 20 times around a toroid ferrite core, but that made no difference.

One solution that works is to use the ELAD-MacBook Pro combo without the battery charger. This gives me a few hours operating without the interference, but sooner or later, the battery will need to be recharged.

Anyone have any other solutions?

Wednesday, June 8, 2016

Running Windows and Mac OS X in Parallel

WGYM: My first new logging with the ELAD FDM-S2 SDR Receiver.
I have owned Macintosh computers since they were originally released in 1984. Way back when, I had a clunky DOS emulator on one of my desktop Macs. I cannot recall why I bought it because I don't remember using it much... maybe because it was so clunky.

Windows emulators/enablers for the Mac have been around for awhile. I have never had a need for one until now, so I had not paid much attention to them and had to educate myself quickly.

I read a few articles comparing what was available and found myself on Parallels' website where there was a link to download and try out their enabler for 14 days. I downloaded and installed the enabler without a problem, but there was not much I could do with it because it needed Windows.

My computer at work runs Windows 7, so I am familiar with that OS and figured I would be more comfortable running 7 on my Mac rather than another version of Windows. But I asked around about Windows 10 because the Parallels enabler was being touted as ready for Windows 10 and folks on the Yahoo ELAD group (elad_sdr_en) said the FDM-S2 software ran fine on Windows 10. So I ordered Windows 10 from Amazon and received the installation USB flash drive two days later.

There were no gotchas installing Windows under Parallels, nor installing the FDM-S2 software onto Windows under Parallels.

I connected the ELAD FDM-S2 receiver to my MacBook Pro, powered up the receiver and started the software. The software started up on my Mac just as quickly as it started up on the Windows laptop I tried it out on and has run perfectly under Mac-Parallels-Windows since I have installed it four days ago.

Some observations:

  • I can run Windows 10 and Mac OS X simultaneously, which is something I did not expect.
  • Windows 10 starts up faster on my Mac than does Windows 7 on the Lenovo laptop at work.
  • The FDM-S2 software crashed a number of times on the Lenovo laptop running Windows 7. It always crashes if I try to expand the GUI window beyond a certain point and it has crashed numerous times while playing back on-the-air recordings. So far, the FDM-S2 software has not crashed on my Mac.
  • I have a shortcut on my Mac's desktop for the FDM-S2 software, which loads Parallels, Windows 10 and the FDM-S2 software with just one click.

But Cupertino, we have a problem!

Friday, December 16, 2011

Surfin’: Where’s Sebastian?

This week, Surfin’ asks “Where’s DO8SEM?” and finds him -- along with some cool Mac OS X SDR applications.

surfin570

Friday, January 28, 2011

Surfin: Snow -- Is There an App For That?

surfin524 This week, your Surfin’ editor gets his mind out of the snowbank and explores the new Mac App Store searching for Mac ham applications.

Friday, October 1, 2010

Surfin’: Finding Where the Hams Are

surfin507 This week, Surfin’ checks out a cool Google Maps application that reveals where the hams are in your burg.

Monday, February 9, 2009

digital television’s dirty little secret


My daughter gave me eyetv as a Christmas gift. It allows me to view television broadcasts on my Mac.

It works great. My only complaint is that right after I got it, they came out with a version that also allows you to listen to FM radio broadcasts on a Mac.

Anyway, I connected the eyetv to my 25-element log periodic antenna, which is at the top of the tower, about 1000 ft ASL.

eyetv receives both analog and digital television broadcasts and that capability soon revealed to me the dirty little secret about digital television. The quality of digital television video is much better than analog television video, however, in order to view digital television video, the signal at your receiver must be stronger than the signal strength required to view analog television video.

Today, I can receive the analog television broadcasts of New York City channels 2, 4, 5, 7, 9, 11, and 13 with my eyetv and log periodic antenna, but I cannot receive any digital television broadcasts from New York City. So, when they finally shut down analog television broadcasts, I lose New York City. Similarly, I will lose other distant television stations once digital becomes the only television broadcast mode.

Is digital television a technological advancement? Not in my book.