After about half an hour we determined a couple of POE cables were bad, replaced them and all was working as expected disaster averted.Īt 3:30 pm I headed toward the locations of camera 1 and camera 2 to talk with Wayne and Steve. I arrived at 2:25 pm and we began looking into the problem. After a short discussion, I decided to go to his location and help troubleshoot the problem. I received another call from Thomas about a node not working. We discussed the location a bit and he was on his way. On the way down the hill, I received a call on FRS channel 7, our communication channel, about Steve having difficulty finding his station location at South Narrows. I headed down the hill to check-in with the rest of the team. Tristan proceeded to secure the relay node with polyethylene rope tie downs and rocks. The sun was out and the power box began taking a charge from the solar panel. The node was set up, connected to power and tested quickly at 1:40 pm. ![]() The remaining two-thirds of the climb to the top was strenuous with all of the gear, but relatively easy to walk. The initial climb was a little bit of a challenge as we had to work our way around some boulders to find the best way up. We collected all of the necessary equipment and made our way up to the relay site. Tristan Davis and I (Tom Davis, KB7HTA) parked his truck as close as we could to a possible path leading up to Lower Fossil. Steve Forinella, N6SFX Thomas Turner, KI6CCW and Wayne McGartlin, N7HWM proceeded to their stations at South Narrows, North Narrows High and Check Point 7 respectively. Due to this upper atmosphere reflection, under the right conditions, it is possible for an AM station to be broadcast around the world.The Nevada Open Road Challenge (NORC), LVMesh team arrived at Lower Fossil at 12:30 after a great cheeseburger and fries at the Alamo Diner in Alamo, Nevada. Lower frequency waves tend to be reflected better than high frequency waves. Another reason why AM radio waves can be heard far away is that they can be reflected off the ionosphere surrounding the earth. This is the reason FM stations sometimes fade in and out when driving in mountainous areas. FM radio waves on the other hand do not travel well through solid objects. Larger wavelength waves can travel farther because they can travel well through solid objects. How is this possible? Since AM radio operates at a lower frequency, it has much larger wavelengths. Wouldn’t it be handy if you could find a station broadcasting Colorado traffic reports while still in California? Surprisingly, this is sometimes possible occasionally signals originating in Denver can received here in Los Angeles. It would be convenient to know ahead of time so that you could plan your route accordingly. ![]() Suppose you would like to go through Colorado, but you heard there has been a big snowstorm there and your are not sure whether the freeway you want to take will be open. Imagine you are taking a cross-country road trip from Los Angeles to New York. As mentioned before, AM has one important advantage over FM, and that is its broadcast range. You may be wondering now why anyone uses AM radio at all. The key to getting the most out of your radio is to understand how radio works and how engineering has played a part in the development of a device which most of us use everyday. There are many factors involved in finding and receiving stations, factors such as modulation, broadcasting power, time of day, and geographical location. ![]() Have you ever stopped to consider how a radio works? How does a radio know which station to play? What is AM, what is FM, and how are the two different? Why does FM sound better, but AM can be heard farther away? You have probably experienced a time when finding a particular radio station has been difficult. Radio is something most of us take for granted. 1), and instantly the car fills with sound. ![]() You turn on the radio, tune it to your favorite station (see Fig. Everything seems almost perfect, yet something is missing. It’s a sunny summer day and you have the car windows down. You are driving down the open road, not a care in the world. Figure 1: Your favorite station – A TechnoBabble radio broadcast featuring Illumin.
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