478499
17
Zoom out
Zoom in
Previous page
1/132
Next page
15FT-857D Operating Manual
INSTALLATION
ELECTROMAGNETIC COMPATIBILITY
If this transceiver is used with, or in the vicinity of, a computer or computer-driven acces-
sories, you may need to experiment with grounding and/or Radio Frequency Interference
(RFI) suppression devices (such as ferrite cores) to minimize interference to your commu-
nications caused by energy from the computer. Computer-generated RFI is usually a result
of inadequate shielding of the computers cabinet or I/O and peripheral connections. While
computer equipment may “comply” with RF emission standards, this does not ensure that
sensitive Amateur Radio receivers like the FT-857D will not experience interference from
the device!
Be certain to use only shielded cables for TNC-to-Transceiver connections. You may need
to install AC line filters on the power cord(s) of the suspected equipment, and decoupling
ferrite toroidal chokes may be required on interconnecting patch/data cables. As a last re-
sort, you can try installing additional shielding within the computers case, using appropri-
ate conductive mesh or conductive shielding tape. Especially check “RF holes” where plas-
tic is used for cabinet front panels.
For further information, consult amateur radio reference guides and publications relating to
RFI suppression techniques.
HEAT AND VENTILATION
To ensure long life of the components, be certain to provide adequate ventilation around the
cabinet of the FT-857D. The cooling system of the transceiver must be free to draw cool air
in from the side of the transceiver and expel warm air from the rear of the transceiver.
Do not install the transceiver on top of another heat-generating device (such as a linear
amplifier), and do not place equipment, books, or papers on top of the transceiver. Place the
transceiver on a hard, flat, stable surface. Avoid heating vents and window locations that
could expose the transceiver to excessive direct sunlight, especially in hot climates.
Heat Water & Moisture Dust Ventilation
17


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 Yaesu FT-857D 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 Yaesu FT-857D in the language / languages: English as an attachment in your email.

The manual is 4,64 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.

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