Technical Topics > Part 15 AM and FM Station Operation

This Knight lit up a lot of potential broadcasters!

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Ya know, of all the Part #15 kits that have been out there through the ages, none have been, or even still, talked about as much as this one. Folks are still kickin' themselves for getting rid of it, or when their parents did. People still want this today!
Heck... I'd still take one.

Yeah, my first build from Knight.  Followed by the Space Spanner and Star Roamer.

Kingbear Radio:
That's awesome! And so simple too, big parts to solder too, and with tubes it must have sounded smooooth on the radios of the times.

I've never seen one in action, but long ago read an article about a guy who described his Kinight like a pro radio station, how as a kid he thought it was even better, no expensive calibration or metering and if something goes wrong, it's a cheap matter to replace a tube. That was a great article!

It only cost $11.95 for the Knight Kit!

Wow, cool to see hfunderground has added a part 15 specific section. Anyway , there's some cool knight broadcaster stories at  They were apparently very capable. The range seemed to average from a few blocks to a mile, but some of the more non compliant installs faired much better, as one of the stories explains:

".....Our antenna ran about.. 900 hundred feet, a simple long wire, strung about 30 feet over the ground. Our tests showed us getting pretty good coverage out to about 10 miles. As kids, we didn't know any better and thought them rules about antenna length didn't pertain to us.
Our shows were the latest "Nifty Fifty records," news from last nights newspaper and assorted comedy skits...."

There's another story the antenna was fabricated using a fishing pole to support the wire on top the house which got out a solid four miles in all directions.

Elsewhere there is a webpage about someone who still uses one of the original knight kits for broadcasting today, but he only does it one day a year.. every year.. I forget the details and now I can't find the link, but it was a license AM station who does it.. Does this story sound familiar to anyone? It's probably the same story which Kingbear refers to.

Also recall someone at the forums mentioning they had utilized a knight kit for their drive-in theatre in the 1960s

Another cool story involved an FCC visit at
"..... The polite FCC official made it clear that we could not use another licensed call sign, WFUN, that our antenna length was excessive giving too much coverage area.  There was about 20 feet of coax from his two story home going to a 3 foot metal antenna up about 35 feet above ground..."

Lastly, of worthy mention, in the late 1950s at least one of the National parks had been using the knight kit broadcaster in a lead car for the tourist caravans following behind.

There are now Knight Broadcaster replicas for about $200 on ebay, but he doesn't supply the tubes with the sale... What the heck!

Kingbear Radio:
The Knight must have been out at exactly the right time, when rock & roll radio was hitting big and kids all wanted to be DJs, so it was perfect timing, just take the phono oscillator, which had been out for many years, and make it junior DJ friendly, with a mike and phono input, and make it put out some power, and that's a neighborhood radio station.

Another article I saw once was kids had their own home station, the teen age guy and his younger brother ran it, Dad might have helped to build it, and they had news reports every morning and local announcements. The signal reached down their block, and they had listeners tuned in. People remember it in that it was filmed for a news report that even ran on AFRTS I think.


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