PDA

View Full Version : OLD antenna instructions manual required...



K4EEZ
04-12-2012, 12:32 PM
hi folks
I have searched until i was blue in the face and all I came up with, was a digital version of a paper clipping :confused:
90809 < I am looking for an instruction manual for the antenna on the bottom Right marked in a Red Box

if any of you have one or a copy of please please please can you email it to me
k4eez AT hotmail DOT com

thank you!!!!

V. 73

W9GB
04-12-2012, 12:42 PM
Radio Shack/Tandy antenna???

The clipping looks like the CB antenna section from a 1970s Radio Shack catalog.

I have searched Internet, till I was blue in face ...

My Google results, in less than 7 seconds
http://support.radioshack.com/support_electronics/19823.htm

Catalog #: 11498771
XEROX COPY of 210-0967 Manual
NP Part #: MU2100967
To order parts or manual call 1-800-843-7422 or visit your local RadioShack store.
===
Crossbow CB Base Station Antenna
(210-0967) Features Faxback Doc. # 31329

The Crossbow antenna is a 1/2 wavelength radiator, and is tuned to 50 ohms
by means of an internal matching transformer and capacitor. It is pre-
tuned, and not adjustable. The 1/2 wavelength design provides good
radiation resistance.

This antenna is capable of handling an absolute maximum of 25 Watts RF
power; however, the legal limit for citizen's band is 4 W carrier in AM
mode and 12 Watt PEP in sideband. We will neither support nor recommend
its use outside these legal limits.

This antenna may be said to have a 3 dB effective gain over an isotropic
radiator (theoretical 1/4 wavelength wire) due to its radiation pattern
having a greater concentration of power in the lower lobes.

There is no need for a ground-plane or radials with the Crossbow and it may
be used at ground level or any height above terrain within local
restrictions.

(/all-03/22/96)
===
Crossbow CB Base Station Antenna
(210-0967) Specifications Faxback Doc. # 31330

Band Width: .................................................. ..... 660 kHz
Return Loss: .................................................. ...... 40 dB
Lower Rod (Mast): .................................. 1 1/4" x 8' Fiberglass

NOTE: Lower Rod (Mast) has an aluminum tube core around which the Fiber-glass exterior has been formed. The core is terminated at the base through a coil to a PL-259 connector and at the top to the brass adapter which accepts the top whip.

Mount: "Unitized" aluminum bracket, formed and fitted to the lower rod of the antenna with two ABS molded retainers. Mounts to mast with 3 U-bolts.

Mast Requirements: .................................. Up to 1 5/8" diameter
Top Radiator: ......................................... 96" fiberglass whip
Lower Rod/Whip Connector: ....... Brass fittings, molded in high impact ABS
Connector Insulation: ..................... None required, because of the exclusive INSUL-MATIC connector

(all/EB 7/17/97)
===
BTW: This is an END-FED Half-Wavelength (EFHW) Vertical tuned for 27 MHz with that bottom coil.

Steve Yates, AA5TB
http://www.aa5tb.com/efha.html

Tom Rauch, W8JI
http://www.w8ji.com/end-fed_vertical.htm

---
w9gb

K4EEZ
04-12-2012, 12:50 PM
I got the antenna to day... i got it from a friend and it is missing some parts, he believes it came either from radio shack or sears back in the day...
i have nothing to go on apart from that clipping.

K4EEZ
04-12-2012, 12:54 PM
(http://forums.qrz.com/member.php?134505-W9GB)W9GB (http://forums.qrz.com/member.php?134505-W9GB) Posted:

Quote" My Google results, in less than 7 seconds
http://support.radioshack.com/suppor...nics/19823.htm (http://support.radioshack.com/support_electronics/19823.htm)" End Quote

That would be the Worng antenna

this is an all metal antenna as i have the main element and base and the top hat
** NONE fiber glass **

the id number is 21-902 if that helps any...

tnx

W9GB
04-12-2012, 01:18 PM
The Radio-Shack/Archer catalog number is: 21-902
IT IS ... That was a critical piece of information (especially for Radio Shack Internet searches)

CB Queries and Research are best found at "CB Tricks"

Archer 21-902 Super-Maxim CB Antenna -- Advertisement (circa 1975)
http://www.cbtricks.com/ant_manuals/archer/21_902/ad/index.htm

Archer 21-902 Super-Maxim Antenna Manual
http://www.cbtricks.com/ant_manuals/archer/21_902/index.htm

That Radio-Shack page says 1/2-wave vertical .... That is all you really need to know.
The manual shows you that the manufacturer SWAGED the aluminum tubes.
Hy-Gain and a handful of antenna mfg. used this production approach (requires specialized equipment)

Steve Yates and Tom Rauch web pages (I gave you links) --
They show you "How they work" -- This Archer antenna uses a Capacity Top Hat

So you can use (move) as DIY build to where you want to operate antenna (10 meters?)

K4EEZ
04-12-2012, 01:24 PM
tnx
I don't know what the antenna really is, all i know for sure its a 1/2 wave for 10-11 meters
that's why I was asking for help, but that's all the intel I have to go on unfurnchely ... :(
and this link http://imageshack.us/photo/my-images/61/crossbowantenna001oo3.jpg/

K4EEZ
04-12-2012, 01:37 PM
ah haaaaaaaaaaa
http://www.cbtricks.com/ant_manuals/archer/21_902/ad/index.htm
(http://www.cbtricks.com/ant_manuals/archer/21_902/ad/index.htm)
Wheres can I find a instruction/manual for this antenna the ARCHER 1/2 wave Super Maxim vertical antenna ?

K4EEZ
04-18-2012, 06:17 PM
91223
Ah Ha I found it tnx.

W9GB
04-18-2012, 10:59 PM
Almost all of these antenna parts can be found at your local hardware store OR
DX Engineering vertical antenna parts.
http://www.dxengineering.com/default.asp?DeptID=32

The Swagged aluminum tubing requires specialized equipment to produce.
Hy-Gain / MFJ has that equipment, as well as Maco Antennas.
http://www.macoantennas.net/
If you need that type of tubing, contact them for custom replacement.

K4EEZ
04-19-2012, 12:12 AM
Thank you for the link's
73

ad: Nifty