CRG Discussion Forum
Welcome, Guest. Please login or register.
Did you miss your activation email?
July 25, 2014, 03:02:24 PM

Login with username, password and session length
Search:     Advanced search
Welcome to the CRG Discussion Forum!
Forum registration problems: Make sure you enter your email correctly and you check your spam box first. *Then* email KurtS2@gmail for help.
102366 Posts in 12080 Topics by 4664 Members
Latest Member: jjonesls1
* Home Help Search Login Register
+  CRG Discussion Forum
|-+  Camaro Research Group Discussion
| |-+  Originality
| | |-+  Telescoping Antenna
« previous next »
Pages: [1] 2  All Print
Author Topic: Telescoping Antenna  (Read 1694 times)
lakeholme
Hero Member
*****
Posts: 2142


*68-12D L30/M35*


View Profile WWW
« on: June 11, 2013, 10:44:15 AM »

http://www.camaros.org/forum/index.php?topic=10918.0;all

So, did the telescoping antenna fully extend to a height of 30 inches?
Did it have the same ball tip/
Does anyone have a picture?
Logged

Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair -- presented by the Hornets Nest Region, AACA -- is the largest and greatest Collector Vehicle Event in the Southeast." --September 18-21, 2014
paceme
Member
***
Posts: 456


View Profile
« Reply #1 on: June 11, 2013, 12:34:49 PM »

On AM you adjust the antenna height so that you tune the RF circuit. This helps optimize reception for the mixer-oscillator stage. Since the FM antenna is fixed height, you optimize/tune the am signal with a trimming pot on the radio itself. Usually there is a label noting "trimming pot" with an access hole located on the radio case.
Logged

Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com
JohnZ
CRG Member
*****
Posts: 4042


View Profile Email
« Reply #2 on: June 11, 2013, 12:46:15 PM »

The AM telescoping antenna isn't round - it's an aerodynamic shape, like a wing, including the tip; fully extended it's 46" long, and collapsed it's 18" long. Photo below.
Logged

'69 Z/28
Fathom Green
CRG
lakeholme
Hero Member
*****
Posts: 2142


*68-12D L30/M35*


View Profile WWW
« Reply #3 on: June 11, 2013, 03:29:11 PM »

Thanks, John! That's exactly what I was trying to confirm.
Logged

Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair -- presented by the Hornets Nest Region, AACA -- is the largest and greatest Collector Vehicle Event in the Southeast." --September 18-21, 2014
paceme
Member
***
Posts: 456


View Profile
« Reply #4 on: June 11, 2013, 07:20:44 PM »

Yes the AM antenna mast is elliptical. Just a note, I've seen original cars come with the tip lined and without a line. There was discussion that the replacement antennas did not have the line on the tip, but believe they came both ways.  The attached pic shows 3 old antennas I collected over the years with plenty of patina. The middle one has the lined tip.
Logged

Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com
lakeholme
Hero Member
*****
Posts: 2142


*68-12D L30/M35*


View Profile WWW
« Reply #5 on: June 11, 2013, 07:32:39 PM »

Paceme, thanks for the pic.

So was the base the same for both fixed and telescoping?
Logged

Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair -- presented by the Hornets Nest Region, AACA -- is the largest and greatest Collector Vehicle Event in the Southeast." --September 18-21, 2014
paceme
Member
***
Posts: 456


View Profile
« Reply #6 on: June 11, 2013, 08:58:35 PM »

Yes
Logged

Steve Shauger
Vintage Certification™ Program, Providing Recognition And Status To Unrestored Vehicles. Website www.vintagecertification.com
Rick68
Member
***
Posts: 31


View Profile
« Reply #7 on: June 12, 2013, 07:10:48 AM »

I have an antenna I bought years ago that is oval/elliptical shaped except for the very last section that extends.That part is round with a ball tip.Someone told me that it is off a Pontiac Firebird or is it a service replacement or an aftermarket antenna?
Logged
JohnZ
CRG Member
*****
Posts: 4042


View Profile Email
« Reply #8 on: June 12, 2013, 08:42:06 AM »

Yes the AM antenna mast is elliptical. Just a note, I've seen original cars come with the tip lined and without a line. There was discussion that the replacement antennas did not have the line on the tip, but believe they came both ways. 

I tend to agree with that - the AM antenna that came with my car appears to be the original (like virtually everything else is), and it doesn't have the little line in the tip.
Logged

'69 Z/28
Fathom Green
CRG
z28z11
Hero Member
*****
Posts: 560


View Profile
« Reply #9 on: June 12, 2013, 08:42:48 PM »

My original is lined, as are the 4 examples of NOS adjustable masts in the pics that follow. 3 are '69's, 1 is a '68, and the 5th mast (at the top, barely visible) is an NOS AM/FM. The '68 mast is exactly .375" shorter in overall length, plus the mount is threaded rather than a splined fit.

These are/were in original GM packaging purchased from GM dealers - 100% positive they are NOS GM.

'69's are 19.375 OAL, '68 is 19.00" OAL. AM/FM fixed mast is 31.500 OAL.

Regards,
Steve
Logged

1968 Z28 BRG/W
1969 Z28 X77 LeMans/W
1969 X66 L78 Cortez/BVT
1969 Z11 L48
1967RS/SS
Member
***
Posts: 150


View Profile Email
« Reply #10 on: June 12, 2013, 09:08:38 PM »

Don't know if my antenna is original to my 67 but here are a couple pics of my AM rear antenna tip and base






Logged

1967 RS/SS L-48
Van Nuys 01C
Joe
lakeholme
Hero Member
*****
Posts: 2142


*68-12D L30/M35*


View Profile WWW
« Reply #11 on: June 13, 2013, 08:28:18 AM »

I'd be interested in knowing if 1967RS/SS's tip is a replacement or original? I've seen several of those "screw tips" on a variety of cars.
Logged

Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair -- presented by the Hornets Nest Region, AACA -- is the largest and greatest Collector Vehicle Event in the Southeast." --September 18-21, 2014
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #12 on: June 13, 2013, 09:22:49 AM »

Quote
I'd be interested in knowing if 1967RS/SS's tip is a replacement or original? I've seen several of those "screw tips" on a variety of cars.

That's an aftermarket antenna.

Ed
Logged
lakeholme
Hero Member
*****
Posts: 2142


*68-12D L30/M35*


View Profile WWW
« Reply #13 on: June 13, 2013, 10:55:41 AM »

Thanks, Ed. Do you know any details?
Logged

Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair -- presented by the Hornets Nest Region, AACA -- is the largest and greatest Collector Vehicle Event in the Southeast." --September 18-21, 2014
Ed Bertrand
CRG Member
*****
Posts: 2333


View Profile
« Reply #14 on: June 13, 2013, 11:23:16 AM »

I'm not sure what you mean by details Phil.

Ed
Logged
Pages: [1] 2  All Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.073 seconds with 18 queries.