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> antennas, manufacturer and size/length/hole cutout
porbmw
post Apr 1 2011, 11:57 AM
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Somebody (won't mention names) was sufficiently astute to notice that my freshly painted, just out of the shop, blazing signal orange 914-6 had the antenna mounted on the "wrong side" (passenger side) (IMG:style_emoticons/default/dry.gif)

Sleepless nights...how could I let that one pass...and can I live with myself if I don't remedy this.

Probably will bite the bullet, patch it up, and drill hole in nice, fresh paint...WTF

But before I venture down that road....better see if I get things right this time around.

Any advice re:
a) most likely correct manufacturer(s) of antennas for 1970 model....I ask, cuz I'm betting on Hirshmann and Bosch...(blue tip???)

If so, does anyone out there have nice ones...

AND/OR

A vendor has some nice looking NOS Poddigs...were they used...

It may be a bit important at this stage, cuz I gather the Poddigs have a slightly smaller cutout/hole for mounting.....

b)length of antenna....Hirshmann seems to be a tad over 90cm....Poddig has at least 2 lengths....100cm....and 150cmmmmmmmm

Hmmmm

Thanks for input

Paul
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euro911
post Apr 1 2011, 12:51 PM
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On an automobile, +/- 30 inches is typically a sufficient wave-length for the standard FM broadcast band. The AM broadcast band would benefit from a somewhat longer antenna.

Use the following equation to find the quarter-wave length for any antenna:

234 divided by f (frequency in mHz) = 1/4 wave length antenna dimension.

So, 234/100 mHz (approx. center freq of FM band) = 2.34 ft (x 12) = 28.08 inches


The radio in my old 64 euro 911 is a Blaupunkt AM/FM/SW (short wave) receiver ... it has a little bit longer antenna than normal and was installed by the factory, not a US dealership.

I thought I read somewhere that radios in the 914s were dealer installed options (but don't hold me to it), so the location of antennas varied. The CW guys would know better than me.
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porbmw
post Apr 1 2011, 01:01 PM
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QUOTE(euro911 @ Apr 1 2011, 11:51 AM) *

On an automobile, +/- 30 inches is typically a sufficient wave-length for the standard FM broadcast band. The AM broadcast band would benefit from a somewhat longer antenna.

Use the following equation to find the quarter-wave length for any antenna:

234 divided by f (frequency in mHz) = 1/4 wave length antenna dimension.

So, 234/100 mHz (approx. center freq of FM band) = 2.34 ft (x 12) = 28.08 inches


The radio in my old 64 euro 911 is a Blaupunkt AM/FM/SW (short wave) receiver ... it has a little bit longer antenna than normal and was installed by the factory, not a US dealership.

I thought I read somewhere that radios in the 914s were dealer installed options (but don't hold me to it), so the location of antennas varied. The CW guys would know better than me.



I think BOTH replies have been correct re dealer installed option....which is one reason I have been waffling about covering up the passenger side hole....and drilling a new one. I think the consensus amongst those who know a whole lot more about this than I (that means just about everyone...) is that on those cars (911 or otherwise) have left the factory with an antenna, it has been on the drivers side....so tradition points to drivers side. SO that has left me on the fence, since tradition is something, but .....
And as far as that goes, I don't really expect to "show" the car....hopefully it will be nice...but it will be a driver....

BTW

Nice re a SIXTY FOUR!
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Posts in this topic
porbmw   antennas   Apr 1 2011, 11:57 AM
smontanaro   You could just patch the hole, install a radio bla...   Apr 1 2011, 12:47 PM
Bruce Hinds   Weren't most radios a dealer installed item......   Apr 1 2011, 12:50 PM
euro911   On an automobile, +/- 30 inches is typically a suf...   Apr 1 2011, 12:51 PM
porbmw   On an automobile, +/- 30 inches is typically a su...   Apr 1 2011, 01:01 PM
porbmw   You're right...and in some ways that would be ...   Apr 1 2011, 12:53 PM
Jeffs9146   That is correct and there is no right or wrong s...   Apr 1 2011, 01:10 PM
Tom_T   That is correct and there is no right or wrong ...   Apr 1 2011, 01:27 PM
Tom_T   Porsche listed the Blaupunkt & Becker radios a...   Apr 1 2011, 01:20 PM
carr914   That is correct and there is no right or wrong ...   Apr 1 2011, 01:34 PM
porbmw   That is correct and there is no right or wrong...   Apr 1 2011, 04:11 PM
GeorgeRud   :agree: My -6 also has a Blaupunkt AM-FM radio fro...   Apr 1 2011, 02:15 PM
Cairo94507   My six currently has an antenna (driver's side...   Apr 1 2011, 02:53 PM
carr914   [quote name='carr914' post='1452195' date='Apr 1 ...   Apr 1 2011, 06:46 PM
porbmw   Hey Paul, Blame Armando, not me. He convinced me t...   Apr 1 2011, 06:50 PM
porbmw   Hey Paul, Blame Armando, not me. He convinced me t...   Apr 1 2011, 07:03 PM
bandjoey   OR go to a BMW wrecking yard and get a 70's 32...   Apr 1 2011, 07:12 PM
porbmw   OR go to a BMW wrecking yard and get a 70's 3...   Apr 1 2011, 07:38 PM
carr914   Hey Paul, Blame Armando, not me. He convinced me ...   Apr 1 2011, 07:24 PM
detoxcowboy   I am using the Poddig and it is bigger no smaller,...   Apr 1 2011, 11:19 PM
ctc911ctc   I bought the RIGHT antenna - it came with the wron...   Feb 6 2020, 11:16 AM
dr914@autoatlanta.com   many different antennas were installed by the deal...   Feb 6 2020, 11:40 AM
ctc911ctc   Thank you George - very good - will do. Love the...   Feb 6 2020, 12:54 PM
brcacti   Why torment yourself, on the right is fine.   Feb 6 2020, 03:23 PM
TonyA   My two cents to get my post count up. I read some...   Feb 6 2020, 04:20 PM
brcacti   My two cents to get my post count up. I read som...   Feb 6 2020, 08:09 PM
rgalla9146   All 914's have two factory holes on the driver...   Feb 7 2020, 12:31 PM
FlacaProductions   Mine is on the right and I have always thought it ...   Feb 8 2020, 10:44 AM


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