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Crestron ST-TUNE Integrated AM/FM/TV Tuner
Operations Guide - DOC. 5833A Integrated AM/FM/TV Tuner: ST-TUNE •• 25
Appendix 1: High-Gain AM Antenna
This appendix provides fabrication instructions of a high-gain AM antenna for use in
areas of high ambience interference or weak reception. The antenna consists of a
looped wire and connector.
Materials Required
For the list of materials required for antenna fabrication, refer to the table below. All
materials are available commercially. The only tools required for antenna fabrication
are a soldering iron and soldering supplies.
Antenna Fabrication Materials
MATERIAL QUANTITY
Wire, 22 gauge, UL AWM style 1061, 300 volt
240 inches *
Tie wraps, plastic (or twist ties) Eight (8) minimum
RCA plug, solderable One (1) **
* Alpha Wire Corp. part number 3251 recommended.
** Keystone part number 1085-B or RadioShack® 274-319 recommended.
Fabrication Instructions
To fabricate a high-gain AM antenna, perform the following steps.
1. Extend wire approximately 36-inches.
2. As shown below, create 15 5-inch (approximately) diameter loops with
the wire and wrap or twist tie the loop in at least eight (8) equidistant
places.
Create 15 Loops
15 LOOPS AT
APPROXIMATELY
5-INCHES DIAMETER
SECURE LOOPS WITH
AT LEAST EIGHT PLASTIC
TIE WRAPS OR TWIST TIES
APPROXIMATELY
36-INCHES
3. Bring the ends of the wire together.