NC1I VHF CONTEST TOWER VIDEO
Click on the photo to watch KA1QFE's portable 40 foot tower going up, complete with rotator and dual long-boom yagis for 432 Mhz! Video was shot during set-up for the September 2001 VHF contest at the NC1I hill-topping effort. If your operating system does not support WMV playback, click here for Quicktime MOV format.
W1D VHF CONTEST TOWER VIDEO
KA1QFE's portable tower is back, and better than ever. This time around, it's got 903 and 1296 Mhz yagis attached to one end, and an air-conditioned radio room and a 20Kw diesel generator attached to the other! Video was shot during set-up for the September, 2004 VHF contest at KD1XP's W1D hill-topping operation. Click on the picture to watch the video. If your operating system does not support WMV playback, click here for Quicktime MOV format.
INTERNATIONAL SPACE STATION AUDIO
Click on the photo of the International Space Station at right to listen to ISS Expedition-5 flight engineer PEGGY WHITSON answer questions for school kids while in orbit! The 2 meter VHF downlink was recorded on 9-4-2002 from FN32. This clip has been edited to cut out silent periods between answers.
50 MHZ AURORAL ENHANCEMENT AUDIO
This is a very short MP3 recording of what auroral propagation sounds like. You can hear the characteristic raspiness and rapid fluttering of the signal caused by the radio waves being distorted after reflecting off the auroral curtain. During this spectacular aurora display, I was torn between making contacts and taking photos. The photography won out. Click on the photo of the aurora over my antenna stack at right to hear what it sounds like.
ISS CROSS-BAND REPEATER AUDIO
I recorded this clip on February 5th 2008. Audio was taken from the VHF downlink receiver while making QSO's through the International Space Station. Click on the image on the right to hear what the NA1ISS UHF/VHF cross-band repeater sound like.
455 KHZ DGPS AUDIO
I was tuning across the VLF bands one night listening to aeronautical NDB's when I came across this signal at 455 Khz. Propagation must have been extremely good, as I was receiving it at over S-5 with the preamp turned off! A little bit of research revealed this was one of the Differential GPS transmitters. In the pre-WAAS days, GPS users could purchase a special receiver to use this signal to augment GPS accuracy. The waterfall display has a very unique signature! Click on the image on the right to hear what it sounds like.
34/94 STREAMING AUDIO (well, sort of...)
Click on the photo of the radio on the right to hear what a typical QSO sounds like on our local 94 repeater. Or as the locals refer to it, the 34/94/10-4 machine.
60 KHZ WWVB TIME SIGNAL AUDIO
This is the signal all those "Atomic Clocks" use to synchronize themselves to WWV. Transmitting the data for a single time frame takes a full minute! This audio clip contains the full synchronization sequence. If you follow the tutorial at WWV's website, you can probably figure out exactly when the recording was made! Click on the time code format diagram to hear what it sounds like.
CF LAMP QRM DEMONSTRATION VIDEO
This clip shows the effect of two fluorescent lamps on the 10 meter ham band. One lamp is an Energy Star rated 30 watt ceiling fixture (purchased through my utility's green program) mounted 7 feet from the radio. The other lamp is an 11 watt compact fluorescent bulb (purchased at Walmart) screwed into a desk lamp 3 inches from the radio. So which one causes less interference? Click on the audio spectrum photo on the right to find out! If your operating system does not support WMV playback, click here for Quicktime MOV format.