Question about Cobra 148 GTL 120-Channels Base CB Radio

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Powers up ,receives,but no transmit - Cobra 148 GTL 120-Channels Base CB Radio

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This is never a good sign. This is usually a sign of a bad final.

If the radio doesn't transmit in SSB or AM, then it either means, Both finals are bad, (which is rare) or there is another problem causing the problem.

If it transmits in SSB, but not AM, then the AM final is blown and needs to be replaced. Its a job for a tech.

If both SSB and Am are not working it needs troubleshooting by a tech.

If you feel ambitious, you can pull the bottem cover off being careful of the speaker wires and make sure the TX section is connected.

Inside the radio, there will be one wire with a plug that is hooked to a pin near the center of the radio. And an empty pin. The empty pin is the test pin, ignore it. Make sure the plug is on the pin all the way, and not loose. If its on good, then it needs further troubleshooting.

Other things you can check:
Make sure the mic works.
Make sure the mic gain is up.

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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Yaesu 3100 transmit problems


There are several reasons you may not be able to transmit with the FTM-3100R:

1) Your antenna is not matched to the frequency of use and presents a high SWR. The 3100 protects itself from high SWR by refusing to transmit
2) You have somehow enabled the busy-channel-lockout feature in the setup menu, and you are operating with an open squelch
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My walkie talkies arent communicating when i press the ppt button. it transmits too fast before i get a chance to talk into it. what can i do to fix them? is there a reset button? they are the motorola...


The ACTUAL problem is your rechargeable batteries have most likely depleted over time, and since it takes more batterie power to transmit than to receive it can appear that your batteries are fully charged and you can be receiving but due to the batterie it will be unable to transmit

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I'm using d-link dwl-3200 ap ( three) Received Frame FCS Error Counts indicate a problem? ___________________________________________ WLAN 802.11G Traffic Statistics Throughput Transmit...


Transmitted Error Count 4734440

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  • As per the above there are error on Transmitting the packet and also for receiving the acknowledge packet.
  • Please check whether any disturbance in the link
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--Sky Junkie / Tucson, AZ / USA

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1 Answer

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