The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-01-2008, 10:33 PM   #1
DANTIP
Registered User
 
DANTIP's Avatar
 
Join Date: Sep 2001
Location: Fort Wayne, Indiana, USA
Posts: 1,888
AM/FM Antenna???????

My truck came with a factory AM/FM radio but the antenna is the collapsable mast. I thought the AM/FM may have used a solid mast. Anyone know for sure?? WHy aren't radio/antenna parts in the factory parts books??
DANTIP is offline   Reply With Quote
Old 03-02-2008, 07:09 AM   #2
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: AM/FM Antenna???????

Good question about why not in parts books???I believe the FM antennea was solid 31".
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 03-02-2008, 07:17 AM   #3
463
Registered User
 
463's Avatar
 
Join Date: Nov 2007
Location: Sask Canada
Posts: 1,666
Re: AM/FM Antenna???????

my am is a 3 peice and i have seen the solid 1 peice used on the am radios
463 is offline   Reply With Quote
Old 03-02-2008, 07:38 AM   #4
BurnoutNova
Registered User
 
BurnoutNova's Avatar
 
Join Date: Mar 2004
Location: CA
Posts: 2,057
Re: AM/FM Antenna???????

do they peform diffrently? i am going to put a factory AM/FM in my 71 K10 soon, and i wondered if there was a diffrence in the antennas
BurnoutNova is offline   Reply With Quote
Old 03-02-2008, 08:27 AM   #5
71 super
Registered User
 
71 super's Avatar
 
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,080
Re: AM/FM Antenna???????

My 71 super is factory AM/FM and it has as solid mast ant. on it, close friend has a 72 Custom deluxe w/ factory Am/Fm and it also had the solid mast ant. hope this helps
71 super is offline   Reply With Quote
Old 03-02-2008, 08:54 AM   #6
BurnoutNova
Registered User
 
BurnoutNova's Avatar
 
Join Date: Mar 2004
Location: CA
Posts: 2,057
Re: AM/FM Antenna???????

i guess i'll put the solid one on there. one of my friends has been nagging me to give them the colapsable one anyway
BurnoutNova is offline   Reply With Quote
Old 03-02-2008, 11:23 AM   #7
corn
Registered User
 
Join Date: Dec 2003
Location: here
Posts: 5,789
Re: AM/FM Antenna???????

Thought they were all the same.
corn is offline   Reply With Quote
Old 03-02-2008, 04:17 PM   #8
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: AM/FM Antenna???????

I don`t know why it seems to be different now.But,back in the day the rule was an FM radio required a 31" mast.That may be why they were "fixed".I say this,then I`ll prolly measure one and it won`t be 31".I never checked,but that was the "rule".I understand nothing about frequence waves...totally baffles me.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 03-02-2008, 04:28 PM   #9
ChevLoRay
Old Skool Club
 
ChevLoRay's Avatar
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
Re: AM/FM Antenna???????

Adjustable antennas allowed us to "tune" them for the most distant stations. When FM came into being in our vehicles, the masts were fixed-length due to the characteristics of FM. FM stands for Frequency Modulated, meaning the broadcast frequency is, well, modulated. It simply means the signal is consistent in its frequency, affording a more precise source of sound. It's why we could get stereo in our vehicles.

The original antennas are not fixed-length. Fixed-length didn't happen until the mid-70's. But they have been used many times. If you want a stock antenna, it will be adjustable. If you want a fixed-length antenna, it won't be "stock". I think original replacement antennas are a bit pricier than aftermarket items. It's all in what you want.
__________________
Member Nr. 2770

'96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed.

'69 C-10 SWB; 350/TH400 - in limbo

The older I get, the better I was.
ChevLoRay is offline   Reply With Quote
Old 04-19-2008, 06:48 PM   #10
the_goat
Registered User
 
Join Date: Mar 2007
Location: Carlsbad, Ca
Posts: 385
Re: AM/FM Antenna???????

Could anyone recommend an easy, cheap antenna? Not trying to jack the thread.
Thanks
the_goat is offline   Reply With Quote
Old 04-19-2008, 07:07 PM   #11
Olden Days
Living In The Past
 
Olden Days's Avatar
 
Join Date: Nov 2003
Location: Rockies
Posts: 709
Re: AM/FM Antenna???????

http://www.classicheartbeat.com/stereos2.htm

Classic heartbeat has them. look at the bottom of the page. he has a fixed am/fm and a telescoping am/fm.
Olden Days is offline   Reply With Quote
Old 04-19-2008, 07:41 PM   #12
HuggerCST
Registered User
 
HuggerCST's Avatar
 
Join Date: Jul 2001
Location: North Louisiana
Posts: 4,501
Re: AM/FM Antenna???????

This is a antenna from a '90 full sized chevrolet van. Looks factory, and the fit is pretty good too.
Attached Images
 
__________________
Wynne
70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s.
Build thread
53 Chevy shortbed
69 Camaro

Click here to subscribe
Chevy GMC International Truck Club Louisiana Charter Member
http://www.louisianaclassictruckclub.com
HuggerCST is offline   Reply With Quote
Old 04-21-2008, 03:38 PM   #13
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
Re: AM/FM Antenna???????

Quote:
Originally Posted by ChevLoRay View Post
The original antennas are not fixed-length. Fixed-length didn't happen until the mid-70's. But they have been used many times. If you want a stock antenna, it will be adjustable. If you want a fixed-length antenna, it won't be "stock". I think original replacement antennas are a bit pricier than aftermarket items. It's all in what you want.
Sorry,gotta beg to differ there,my friend.All the factory trucks Ive had were fixed length and all the N.O.S. ones I`ve bought were fixed length.
Adjustable shafts are an AM thing and ever since FM have been offered so have solid masts.

Also,I just went out and measure the N.O.S. antennea I have and it does measure 31" to the base.I guess my memory still works a little anyway.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 04-21-2008, 03:58 PM   #14
ChevLoRay
Old Skool Club
 
ChevLoRay's Avatar
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
Re: AM/FM Antenna???????

Okay, you win. I was basing my comments on having worked on vehicles and installing "stuff" in the mid-70's. The solid, fixed-length antennae were touted as best for FM reception due to the fixed lengths' characteristic of receiving the 88-108MC (MHz) frequency. Adjustable antennas were tuned to receive the strongest signal, and done so via a tuning screw adjustment behind the tuning knob of the AM radios. The longer the antenna, the better the AM reception.

I won't argue with facts, and some of my comments are based on experience and memory....which can become clouded over time.

As long as the antenna one chooses receives the signals that one wants to hear, what difference does it make if the antenna is one-piece, adjustable or hidden?
__________________
Member Nr. 2770

'96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed.

'69 C-10 SWB; 350/TH400 - in limbo

The older I get, the better I was.
ChevLoRay is offline   Reply With Quote
Old 04-19-2008, 09:34 PM   #15
Mint68
Registered User
 
Mint68's Avatar
 
Join Date: Nov 2004
Location: Nebraska
Posts: 762
Re: AM/FM Antenna???????

I dont have a solid mast with my am/fm. I never have problems with reception and it works just fine. I was told am/fm only used solid, but mine is working just fine.
Mint68 is offline   Reply With Quote
Old 04-21-2008, 03:57 PM   #16
Ol'Rover
Project: years too late.
 
Ol'Rover's Avatar
 
Join Date: Dec 2007
Location: Almonte,ON,Canada
Posts: 550
Re: AM/FM Antenna???????

my Antenna is at the back of the cab on the passengerside behinde the door, not sure if its orrigional... But it is colapsing aswell.
__________________
1971 C10 Stepper LSX 5.3/4L60E 3.73 12bolt posi. Father Son Project. In Memory of Bruce C. Shorten. Rest easy Dad. Ill take it fryom here.
Ol'Rover is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com