Question about Kenwood Tk270g Tk-270g Vhf 150-174

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Can receive at close range

Receive short range and transmit loss

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Check the antenna connection

Posted on Apr 28, 2017


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Both phones are displaying out of range please advise

Walkie talkies talk to each other. Try transmitting (talk to each other) so they receive a signal first. Do it in the same room. The try for range. It is not much. Even for a GMRS radio, these are low power and short range. Under 2 miles, must be able to "see" each other.

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My Midland walkie talkie quits transmitting about 3 seconds after I start transmitting

It is more likely a power issue. PTT switches do not normally cause a short circuit. Check the batteries, swap the batteries and see if that helps. Radios take a great deal more power to transmit than turn on or receive. If not the battery, try a low voltage battery, such as a cordless phone battery. If it still occurs, check your warrany and send it back to the factory.

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Flashing red light on radio where it thinks its recieving. Transmits fine but does not recieve.

Three things come to mind:
1) The radio is receiving, hence the light, but you may have a different PL code than the other radio and it is muting the transmission. Check your programming to be certain both radios are programmed alike. The red light indicates activity on your frequency.
2) Your radio may have a problem with the receive side of the radio or a bad speaker.
3) The transmitting radio may have a problem with transmit. This can be a sign of a bad battery. Swap batteries and see if the problem moves to the other radio. If so, replace the battery. (It takes more energy to transmit than to receive, so loss of transmit is common with a bad battery.)
Best regards.

Apr 15, 2013 | Motorola CP200 Two Way Radio

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Only side band receiver no am on 148GTL

Radio works on SSB but not AM?

Question here is it loss of transmit only on AM Receive?

If receive is good but no transmit on AM---I can tell you what transistor is bad


Sep 28, 2010 | Televison & Video

2 Answers

I can receive, but not broadcast from my CB radio.

Hi mfdogman,

This problem is usually one of two things. Check the antenna coaxial cable and connections first, to be assured there are no shorts. That's one of the symptoms of receive and no transmit. The other would more than likely be a defective RF Transmitter stage in the final amplifier circuit. That could be a defective (blown or shorted) Power Transistor or IC (Integrated Circuit) Module.

After checking the antenna and coax, key the Radio up and look for any meter or indicator sign of TX (Transmitted power). If you have a power meter, use that for power and SWR (Standing Wave Ratio which should be close to 1:1 ratio) checks of the radio and antenna system. If there is no power, then you will need Technical help from a Professional at a repair facility, unless you are familar with this work. The antenna problem, if it should be able to fix.

Let me know when you get this fixed, and contact me again for more help. Thanks.

Regards, Bill

Sep 18, 2010 | Midland 77-285AXL 5-Channels Base CB Radio

1 Answer

Will not get good recepiton.

Hi stormnorm157,

Much of the time this is caused by problems in the antenna system. Make sure there are no shorted or open connections in the coax or PL-259 connectors. Use your radio's meter or better still, a Power/SWR meter to check the SWR of the antenna. Try to get that as close as possible to a 1:1 ratio on the meter. A shorted or open antenna can keep the audio receive on your radio at very low levels. Plus, this will harm your transmitter if you continue keying the mike.

Another problem can be in the radio itself. This will be noticed if you can transmit, but have no "Modulation". Modulation can be described as the voice heard above the "Carrier" (your transmitted signal). Every CBer knows about the term, Modulation. The Truckers will definitely inform you about your modulation This problem can be due to a defective AMC (Automatic Modulation Control) stage in the receiver circuit. And, there will be no modulation upon transmit.

One other thing could be causing this lack of receive. Defective wiring or switching in the microphone can result in no audio. Or, in many radios, a missing mike will not allow receive, because the mike connection completes the RX (Receive) circuit.

1. Check the antenna system, and rule that out or fix.
2. Check mike, or substitute another one.
3. Using meter, and or another radio for listening on same channel, check power and receive.
4. You can probably fix 1 and 2 yourself, or with a friend.
5. AMC problem in radio (as described above) will require professional service.

Let me know how this turns out, and inform me if I can offer any more help. Thanks.

Regards, Bill

Sep 18, 2010 | Midland 1001Z 40-Channels Base CB Radio

2 Answers

My cb radio has good reception but only for a short distance, why ?

Make sure your squelch is not on, keep it all the way to the left and the RF Gain must be all the way to the right...

May 21, 2010 | Cobra 29 LTD CB Radio

1 Answer

PPT works in the lower bands (under 148 Mhz) but not 156 range

Your radio has not been modified to transmit outside of the amateur bands.

Jun 07, 2009 | Yaesu NABC NABC LMR NICD BATTERY FNB-29...

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