An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: Motorola GM300 Question
Check your antenna connections and coax for loose connections or damage. Also check your hand mic. See if the problem disappears if you turn on the radio without the mic attached. The two most common problems with a mobile radio are antenna and mic problems.
If you feel these are in order, it would be wise to have a tech look at the radio.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You can always have a radio receive. To transmit require an FCC License, and you need authorization to "Talk" to Public Safety. There are large fines and possible jail time to talk on channels you are not authorized for, especially Public Safety. Sadly, your radio is programmed to monitor only when the button is held down. The frequencies in your area working are a lucky coincidence. Take it to an Authorized Motorola Dealer and pay to have it reprogrammed. Radio is not field programmable. Hold onto your wallet, they are expensive to have programmed. You should have bought a high end digital scanner.
The GM300 is dealer programmable using Motorola proprietary software, a programming cable and radio interface box (rib). (Or on some models a ribless cable). I will continue to look for a user guide pdf. If I locate one I will post it.
Yes sir, when u will open the set u can find two potentiometers , one is for tranmitter another for receiver . Try adjusting the same ( second radio should be transmitting ) do not switch one radio without antennae it may burn ..
If you are referring to the receive audio, possibly the reason it is soft/weak are: 1. defective internal speaker - try using an external speaker; 2. volume control - try rotating back & forth till you get satisfactory level. In some cases, you may need to clean the inside of the volume control with an electronic contact cleaner. At worst is that it has to be replaced; 3. defective amplifier - between the volume control and the speaker is the audio amplifier. This is a single op-amp IC U501 (TDA1519A); and/or 4. muting - which is a bit complicated. This is triggered either by the squelch or by the CTCSS tone decoder. You may have partial/false muting. You need to check Q501 (MMBT3904) and its associated circuitry.
Other than #1, most fix would require opening the unit and familiarity with electronic circuitry & components, use of a DVM and soldering iron. Perhaps your best bet would be to seek the services of a qualified communication technician.
Hope that this be of some help/idea. Pls post back how things turned out or should you need additional information.
Do you hear the Beeps on the speaker?
Check for the QT and the code squelch are the same in both radios, try to set code squelch in "0".
Make sure that the radio is not receiving or the other one is not transmiting, with two radios will see the same.