478504
47
Zoom out
Zoom in
Previous page
1/132
Next page
Page 45FT-950 OPERATING MANUAL
R.FLT
(
ROOFING FILTERS
)
Narrow-band Roofing Filters of 15 kHz, 6 kHz, and 3 kHz bandwidths are provided in the first IF, right after the first mixer.
These filters provide protection for the 2nd mixer, DSP, and other circuitry that follow and can dramatically improve
reception on a very crowded band (during a contest, etc.). Typically, the AUTO selection mode is satisfactory for most
operating situations, but in an extremely crowded phone band you may wish to select, for example, the 3 kHz roofing filter
for SSB operation.
INTERFERENCE REJECTION
Press the
[
R.FLT
]
button to toggle the Roofing Filter se-
lection.
AUTO 15 kHz 6 kHz 3 kHz AUTO
.....
ADVICE:
As you repeatedly press the
[
R.FLT
]
button, you will
observe changes in the notation in the R.FLT column
of the Block Diagram Display on the display, denoting
the Roofing Filter currently in use.
Typically, this selection will be set to “AUTO.”
The Roofing Filter selection will be memorized inde-
pendently on each VFO stack of VFO-A and VFO-B.
QUICK POINT:
The “AUTO” selection of the Roofing Filter is based on
the operating mode. However, you may override the auto-
matic selection, if band conditions warrant a different (usu-
ally, a tighter) selection.
BLOCK DIAGRAM DISPLAY
Block Diagram Display
[
R.FLT
]
Button
TERMINOLOGY:
A “Roofing Filter,” as its name implies, places a “Roof”
over the receivers IF system bandwidth. This “Roof” pro-
tects the circuitry downstream from the first mixer from
interference, just as a roof on a house protects the contents
from rain and snow.
47


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-950 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-950 in the language / languages: English as an attachment in your email.

The manual is 6,67 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