Carl Blare

The AM band changes dramatically between daylight and dark.

Do field strength measurements turn out differently depending on the time of day?

Part 15ers crave for a new micro-thought about stepping up the efficiency of their miniature radio signals. We end up considering every possible combination, based on those sacred rules we follow.

Part 15ers crave for a new micro-thought about stepping up the efficiency of their miniature radio signals. We end up considering every possible combination, based on those sacred rules we follow.

So, if we fed the transmitter into a 3-meter transmission line to get the signal outdoors and away from the wall, at the outside-end you could attach to… nothing.

Would it work?

The brain adapts to low-power life. We have actually found an advantage to maintaining a less efficient transmitter site, in addition to the regular “more efficient” site.

The brain adapts to low-power life. We have actually found an advantage to maintaining a less efficient transmitter site, in addition to the regular “more efficient” site.

The “efficient” site is 1670 AM, which is “more” efficient precisely because it is at a higher frequency. But the DISADVANTAGE is when I try to make improvements in antenna performance. It’s necessary to go two blocks away to check for the result.

Aha! A second transmitter operates at 1550kHz and the efficiency is PERFECTLY LESS, so that the normal reach of the signal fades out within the confines of the yard’s borders. Therefore when we tinker with antenna ideas the result can be tested within convenient bounds.

IF antenna improvements are discovered using the weaker system, those improvements can be added to the “better” system.

Smart? Nobel Prize?

Somewhere in a recent thread SCWIS mentioned his new all-band radio, an Alinco DJ-X3, with a range of 100kHz to 1.3gHz, so I just went and ordered one also. I notice it has a built in “bug detector.” That reminds us of another part 15 device

http://gizmodo.com/5655514/want-to-know-if-the-fbi-is-tracking-you-look-for-one-of-these?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+gizmodo%2Ffull+%28Gizmodo%29

While cutting and steaming vegetables I was thinking how cool it would be if someone did a radio program about Part 15 topics and then distributed it here on the site. The next thing I thought of was a possible slogan, maybe for this web site or for related activity:

Part 15 – Where Imagination Meets Reality.

It makes more sense the more you think about it. No?

Back in the 1960s a local man started a new radio station and used his name for call letters. I think his name was “Cady,” pronounced like “lady.” The station name switched the “C” to a “K.”

Back in the 1960s a local man started a new radio station and used his name for call letters. I think his name was “Cady,” pronounced like “lady.” The station name switched the “C” to a “K.”

Here’s what I THOUGHT I heard:

“This is K-D-K-A-D-Y.

Here’s what the announcer was actually saying:

“This is “Kady;” K-A-D-Y.”