12752
42
Zoom out
Zoom in
Previous page
1/48
Next page
39
12
OPTIONAL INSTALLATIONS
CR-293
HIGH STABILITY CRYSTAL UNIT
A temperature-compensating crystal with a stability of
±3 ppm is built-in to the receiver. For more demand-
ing operation, the CR-293
HIGH STABILITY CRYSTAL
UNIT
is available. It has a stability of ±0.5 ppm.
q Remove the bottom cover as shown on p. 37.
w Remove 6 screws from the metal plate, then
remove the metal plate and shield cover.
e Remove 10 screws from the PLL unit, then open
the unit to expose the bottom.
r Unsolder the feet of the internal crystal unit, then
remove it.
t Place the CR-293 in the space available as shown
in the diagram, then solder its feet into place (6
points).
y Adjust the reference frequency using a frequency
counter.
u Replace the ground spring to its original position.
i Return the shield cover, metal plate and bottom
cover to their original positions.
NOTE: The CR-293 is an oven-type crystal unit,
and the specied frequency stability described
above is guaranteed 1 min. after power ON.
Shield
cover
PLL unit
Ground
spring
PLL unit
CR-293
Internal
crystal
unit
Metal plate
42


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 Icom IC-R8500 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 Icom IC-R8500 in the language / languages: English as an attachment in your email.

The manual is 1,52 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