[TenTec] 160 M antenna

[Bob McGraw - K4TAX]

A bit of research here indicated the antenna might be a Webster Band Spanner 
or Webster BandMaster.  There seems to be several iterations of this 
antenna.

73
Bob, K4TAX



----- Original Message ----- 
From: "Bob McGraw - K4TAX" <RMcGraw at Blomand.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Sunday, November 24, 2013 9:09 AM
Subject: Re: [TenTec] 160 M antenna


> The earliest version of the "screwdriver" antenna as I recall were 
> actually manual tuned devices.  I recall them being sold under the name of 
> Bandmaster or Super Bandmaster.  Basically described as a short mast, 
> followed by a long coil with a sliding roller which shorted out the turns 
> to change band. This coil as I recall was some 2" to 3" in diameter and 
> some 18" in length. It was then attached to a 4 ft to 5 ft whip extending 
> out the top.  Changing bands was a matter of sliding the rod with the 
> roller attached up or down. The shaft of the roller assembly was marked 
> generally in bands to aid in quick band changes.  Today's antenna simply 
> adds a DC motor and controller to remotely change the tuning or bands.
>
> A friend had one mounted on the driver side rearview mirror frame attached 
> to the door of his van.  He operated CW with a Galaxy V as I recall.  He 
> would change tuning or change bands while driving.  Talk about "distracted 
> driving"   Wow, that was way before the cell phone rage of today.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message ----- 
> From: "John" <jlockj at earthlink.net>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Saturday, November 23, 2013 9:44 PM
> Subject: Re: [TenTec] 160 M antenna
>
>
>> Hi Steve,
>>
>> It took me a while to find my 1993 copy of "40 + 5 Years of HF 
>> Mobileering" - it states that the first copies of the W6AAQ (Don Johnson) 
>> remotely tuned screwdriver antenna were constructed and used in 1974.
>>
>> 73,
>>
>> John  W0DC
>>  ----- Original Message ----- 
>>  From: Steve Hunt
>>  To: Discussion of Ten-Tec Equipment
>>  Sent: Saturday, November 09, 2013 3:50 AM
>>  Subject: Re: [TenTec] 160 M antenna
>>
>>
>>  Rick,
>>
>>  That's correct!
>>
>>  The only published article I know of was by Tim Forrester G4WIM in
>>  RSGB's RadCom - later included in their book "HF Antenna Collection". In
>>  addition to the basic top-loading principle, Tim described in detail the
>>  mechanical arrangements for the auto tuning whip: a geared motor drove a
>>  lead screw that progressively introduced a core into the loading coil.
>>  Tim won an RSGB award for the article - the design was in many ways a
>>  forerunner of the "screwdriver".
>>
>>  73,
>>  Steve G3TXQ
>>
>>
>>
>>
>>
>>  On 09/11/2013 09:13, Rick - DJ0IP / NJ0IP wrote:
>>  > Steve,
>>  >
>>  > I don't understand what you are describing.
>>  > I think you mean placing a screwdrive-tuned mobile whip on top of a 
>> metal
>>  > lower section.
>>  > Correct?
>>  >
>>  > I have never seen or read about this.
>>  > Do you know a source where we can read more on this?
>>  >
>>  > 73
>>  > Rick, DJ0IP
>>  >
>>  >
>>
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>
>
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