How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Pete Your Own Question
Pete, Electronic Engineer
Category: Marine Electronics
Satisfied Customers: 15454
Experience:  Over 16 years of experience installing and repairing electronics.
Type Your Marine Electronics Question Here...
Pete is online now
A new question is answered every 9 seconds

I have a 1630 radar and the transmit screen has gone

Customer Question

I have a 1630 radar and the transmit screen has gone bonkers. Occasionally I get error message "NO HEADING PULSE" and otherwise the transmitted screen appears with rotated results or just plain garbage. I don't know how to troubleshoot further. Any suggestions?
Submitted: 2 months ago.
Category: Marine Electronics
Expert:  Pete replied 2 months ago.

Hi Gary,

When "the message “NO HEADING PULSE” or “NO BEARING PULSE” appears, you should check that the antenna cable is firmly connected.

Check all connections are secure and no wiring is damaged.

Let me know how you get on.


Customer: replied 2 months ago.
I checked the two connections at the display and they are firmly attached. Visually, nothing seems out of order on the dome. What next?
Expert:  Pete replied 2 months ago.

Next you will need to test the unit with a different dome to rule out a problem with the antenna; or you could test a different unit using your antenna.

Related Marine Electronics Questions