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Author Topic: Name that antena, 3 Vertical Dipole with selecton/direction  (Read 1973 times)
MDNITERDER
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Posts: 146




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« on: October 04, 2012, 04:34:12 PM »

 I believe I saw it discussed here before the brand, I even seen one last week for a great price. It was an old CB antenna triple Dipole, It allowed you to select a directional pattern with it or have all 3 dipoles working as one omnidirectional antenna.

 Anyone know what I am talking about
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MDNITERDER
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Posts: 146




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« Reply #1 on: October 04, 2012, 04:41:07 PM »

Never mind, Found it, the Super scanner
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VE3FMC
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« Reply #2 on: October 04, 2012, 04:49:49 PM »

I believe I saw it discussed here before the brand, I even seen one last week for a great price. It was an old CB antenna triple Dipole, It allowed you to select a directional pattern with it or have all 3 dipoles working as one omnidirectional antenna.

 Anyone know what I am talking about

You found the correct name for that antenna.

Now if it is a great price you should buy it. You can do a couple of things with it.

1. Leave it in the stock configuration and shorten the elements for 10 meters. You should rewire the external relay box as it may not handle 100 watts the way it is.

2. Take it apart and make a 3 element yagi out of the elements, and the element mounts. If you use some square aluminum stock you can cut pieces of that 8 inches long. Insert them into the element mounts, then U clamp them onto a boom.  Then on the reflector and director elements just run a jumper wire from one element to the other to electrically connect them. The driven element can be fed the same way you feed a dipole.

As I said if the price is right buy it, the tubing alone is worth having around.
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KD8GEH
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« Reply #3 on: October 04, 2012, 08:03:36 PM »

M-119 Antenna Specialist Super Scanner. Relay box is good for about 500 watts. I had a few. Easy to convert to 10, some had a tuning stub of coax out of the relax box to match it. About 7 db in each of three directions 3... somethin omni. Great antenna if its the right price.

73  Dave KD8GEH
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W9GB
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Posts: 2626




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« Reply #4 on: October 05, 2012, 05:01:24 AM »

The A/S SuperScanner had a retail price of $99.99 in 1974, just after the 1973 Arab Oil Crisis (Embargo) when gasoline went from 25 cents/gallon to 75 cents/gallon.

By 1977 (due to US inflation, as a reaction to 3x increase in oil price), that same antenna sold for $ 139.99 retail .... a 40% increase in price.

When the 1979 Iran Crisis (and their Embargo) occurred -- gasoline jumped from 75 cents to $1.25/gallon.
The CB Craze virtually ended with the decade in 1979.  
Numerous radio resellers (local dealers, stores) closed their doors and many mfg. we're sold (Turner, Avanti) or closed (Palomar).  

In the early 1980s, the marketplace was filled with CB inventory surplus (no buyers), especially for mobile antennas.
Personal computers (1981/1982), music CDs (1984), mobile/cell phones (late 1980s) were the new consumer purchases throughout the 1980s.
« Last Edit: October 05, 2012, 05:14:17 AM by W9GB » Logged
W7HBP
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Posts: 166




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« Reply #5 on: October 06, 2012, 07:13:40 PM »

I believe I saw it discussed here before the brand, I even seen one last week for a great price. It was an old CB antenna triple Dipole, It allowed you to select a directional pattern with it or have all 3 dipoles working as one omnidirectional antenna.

 Anyone know what I am talking about

Super Scanner made by Antenna Specialist. It was 3 vertical dipoles.

Here is one on craiglist.
http://raleigh.craigslist.org/ele/3318945456.html
« Last Edit: October 06, 2012, 07:16:20 PM by W7HBP » Logged

ARRL Life Member|QRZ Life Member
N4CR
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Posts: 1672




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« Reply #6 on: October 06, 2012, 09:09:21 PM »

The literature claim converted to dBd is 3.65 dBd in omni and 6.65 in directional mode. Not bad for a 3 element array that is essentially 1 driven element with 2 reflectors. I could not find anything about front to back ratio. I suspect it didn't really have that much gain.

There are quite a few reports of the control/matching box getting blown up when being driven by a linear amplifier. It was probably designed around a 5 watt drive level.
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73 de N4CR, Phil

We are Coulomb of Borg. Resistance is futile. Voltage, on the other hand, has potential.
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