Instruction/ maintenance manual of the product ALP-450 Telex
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INSTRUCTION MANUAL General Description The ALP-450 is a broadband directional log peri- odic antenna. It will receive any frequency from 450 to 900 MHz. The “gain” of this antenna en- ables it to receive signals from a greater distance than a typical “whip” type antenna.
Microphone Stand Adaptor Attach the microphone stand adaptor using the screws and spacers supplied with it. See Figure 2. Angle Bracket Attach the angle bracket using the nuts, lockwashers, and screws supplied with it. Self tap- ping screws are supplied for securing the bracket to wood, metal, or other surfaces.
Clamps Clamps are provided for mounting the ALP-450 on pipes, scaffolds, tree limbs, etc.. Attach the clamps with the hardware supplied. See Figure 4. Do not clamp the antenna to horizontal metal objects that extend past the clamp. See Figure 5. This will detune the antenna and cause loss of range and performance.
Coax Cable For best results, it is recommended that cable losses be kept under 4 dB. (Every 3 dB of signal loss re- sults in a system operating distance reduction of 25%). See the accessories section of this manual for spe- cial low loss cable assemblies.
-5- Pipe or Scaffold Combination: Bracket with Clamps Tree Limb.
ACCESSORIES Special Low Loss Antenna Cables with TNC Connects Length Part No. 10 Ft. (3 meters) 690419 25 Ft. (7.6 meters) 71151-025 50 Ft. (15 meters) 71151-050 75 Ft. (23 meters) 71151-075 100 Ft. (30 meters) 71151-100 PRINTED IN U.S.A. Copyright© 1995 by Telex TELEX COMMUNICATIONS, INC.
An important point after buying a device Telex ALP-450 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Telex ALP-450 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Telex ALP-450 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Telex ALP-450 you will learn all the available features of the product, as well as information on its operation. The information that you get Telex ALP-450 will certainly help you make a decision on the purchase.
If you already are a holder of Telex ALP-450, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Telex ALP-450.
However, one of the most important roles played by the user manual is to help in solving problems with Telex ALP-450. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Telex ALP-450 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
