522140
18
Zoom out
Zoom in
Previous page
1/91
Next page
1-10
1.5 The Antenna
The antenna plays the most important role in radio communication. If it cannot receive or
transmit effectively because of improper installation, even the most sophisticated transceiver will
be rendered useless.
1.5.1 Types of antennas
The most commonly used are a long wire and a whip. Whatever antenna is to be used, the
antenna coupler can tune a long wire or whip whose total length is 7 to 30 meters (23.3 to 100
feet). Although a longer antenna is preferable when the radio is operated only on low
frequencies, use this size of antenna to ensure stable automatic tuning on all bands.
Long wire antenna
A long wire antenna is inexpensive and in general provides better performance than a whip
antenna, provided the vertical part is long enough.
Whip antenna
A whip antenna is easier than a long wire antenna to install and provides good overall coverage
of most SSB frequencies. A whip antenna is installed as high as possible, away from any nearby
objects.
Mounting considerations
When selecting a mounting location;
The length of the vertical portion should be longer than 4 meters, and the slant angle of that
part should be within 10 degrees. Separate it as far as possible from:
stays, metallic objects, direction finder antenna, INMARSAT radome antenna
Locate the insulator away from funnels and masts.
If the antenna coupler is installed outdoors, use a lead-in insulator (Furuno type YA-150 for
FS-1570 or YA-218 for FS-2570) to make the connection. If necessary, use a high quality
antenna switch and stand-off insulator.
If the antenna is connected directly to the coupler, use a strain insulator to prevent insulator
fatigue.
offered by Busse-Yachtshop.de email: info@busse-yachtshop.de
18


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Furuno FS-1570 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Furuno FS-1570 in the language / languages: English as an attachment in your email.

The manual is 3,8 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Furuno FS-1570

Furuno FS-1570 User Manual - English - 222 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info