Question about Motorola CDM1250 Two Way Radio

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Not talking far

My radio doesn't seem like it's talking as far as it should

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  • Josh Underwood Feb 13, 2014

    No I haven't changed anything is there a way to make it talk better

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  • Motorola Master
  • 1,654 Answers

Check your antenna set up and connections. Make certain all connections are tight. Have you changed anything about the antenna recently, such as location, or stinger length?

Posted on Feb 13, 2014

  • eradiostore
    eradiostore Feb 14, 2014

    Height and placement of your antenna determines the range, as well as the type of antenna you are using. Questions: What type are you using, ie. 1/4 wave, 3db gain? Do you have 19" clear around the base of the antenna, on a metal surface? If not, are you using a no ground plane style of antenna? Is your antenna trimmed to match your frequency? Just a few things which came to mind.

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Does anyone know what the range is for the Motorola talkabout T5725? I can't seem to find it anywhere


As a general rule handheld radios will talk up to 2 miles line-of-sight. Anything you place between the two radios will reduce range. Talking from inside a building to outside, you can expect 1/4 to 1/2 mile. This being said, a radio can talk as far as it can see, so if you were on a mountain top, you could conceivably talk many miles into a valley below. Height and placement of your antenna determines range. Holding your antenna upright perpendicular to the earth will give you the best range.

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I talk on my cb no one talks back


you could have ten people talking to each other and if no one wants to talk to you then you will be talking to no one.Now if its a radio problem then I would say turn up the variable for your modulation , make sure your RF GAIN is wide open and turn your SQUELCH all the way to the left then go to different channels and ask for a radio check or have a friend drive far enough away and with his radio give you a radio check.

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1 Answer

What is the range?


line of sight. If you can "see" the other radio, they will talk to each other, most of the time. Yes, radio signals can penetrate buildings and a few floors. More power equals more range. Best to ask about a specific radio model. There are NO GMRS radios that actually talk 38 miles without the help of a relay tower. That's a lab test and total bunk. One 2 watt radio may not talk as far as another 2 watt radio because the more expensive ones tend to have superior receivers to pull in a weaker signal. YMMV

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How to get maximum range


Have a fully charged good battery. Hold your radio upright, perpendicular to the ground, when transmitting. (Tilting to the side can significantly reduce range.) Wear your radio higher on your body if carrying the radio. Height and placement of antenna has much to do with good range. Talking line-of-sight in perfect conditions a portable radio will get approx. 2 mi., talking in and out of a building you may get 1/4 to 1/2 mi. Obstacles inbetween the two radios will reduce range, so each location may differ. From a mountaintop you may be able to talk many miles into a valley below. Your radio can basically talk as far as the antenna can see.

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Kenwood 2 way radio


Advertising for various radios differs, and can offer some incredible ranges. The following is a good rule of thumb in the real world:

Handheld radios generally will talk "radio-to-radio", "line-of-sight" up to 2 miles. Once you start putting obstacles in between the radios you will shorten your range.
Mobile radios, such as those mounted in vehicles, will generally talk "radio-to-radio" 8-10 miles depending upon the obstacles and the terrain.
Repeater Towers and/or Trunking: If your radio is programmed to match a local repeater or trunking system, your range will be determined by the footprint of that particular system. See your local dealer for details.

Consider your radio can talk as far as it can "see". If you are on a mountain top, your radio will talk far into the valley, and seem to have incredible range. So conversely, if you in a city with many obstacles, you may have a very short range.

Best regards.

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What is the talk range of a Motorola P14spa03p2aa walkie talkie?


Line-of-sight you can talk as far as the radio can 'see'. In the real world, with obstacles and curvature of the Earth, this will vary according to your location. General rule of thumb, outdoors with few obstacles, you can talk line-of-sight up to 2 miles. Talking in and out of a building might reduce your range to 1/4-1/2 mile. There will be circumstances when you could achieve great range such as talking from a mountaintop into a valley, you could potentially talk 25 miles.

Height and placement of the antenna determines range. Holding the antenna perpendicular to the ground will give you the most range. Tilting the radio can reduce your range by as much as 2/3s.

Best regards.

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1 Answer

Programming motorola mts2000 & mtx8000 radios i have a radio to computer cable and a RIB box, seem to need the RSS load data. I have 7 MTS2000 and 12 MTX8000 radios and i need them to talk to each...


SADLY a MOTOROLA dealer may be both your ONLY and LAST resort?...

IF you have a Ham Radio acquaintance he or she may know someone in 'the business' and perhaps they may introduce you?

Another possibility is you placing a AD in Craigslist (in you area) using almost the same words you used here.

98% of this stuff is 'Motorola Proprietary' so Motherolla can charge a fortune to EVERYONE who decides they "want and need the best "... Of course most other mfg are not far behind! HARRIS IS one *other* choice the feds and military LOVE to use... but they are $$$ and quite "secure".

See this Link:

https://www.harris.com/solution-grouping/tactical-uhf-radios
(
and photo 2)

My example? I have a Motorola "XPR7550" with 2 chargers and 2 spare batteries! I CAN'T find anyone who will program it to ham radio frequencies and YIKES... how it kills me to see this awesome radio go to waste!

Anthony
moto-ay53xupi2pin52cfytgihs5s-2-0.jpg


harris-ay53xupi2pin52cfytgihs5s-2-1.jpg

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1 Answer

I have my radio hooked up in my jeep and i can hear other people talk but it seems that they cant hear me talking. Its all hooked up right. i checked to see if there was a tuning thing on it and there...


Turn up "MIC GAIN" also check and see if it keys up full scale 4 watts on output meter. If that doesn't do it change MICS. Go for a power mic by cobra that runs off say a double AA battery. It may be conditions also or your out of range of persons. check Antenna,Swr reads (should be 1.1 to 1.5)on a Radio Shack meter. Try it all.

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1 Answer

How far can I get this thing to reach,and how ?


With a good antenna, and the antenna tuned for best SWR, about 8 miles from mobile to mobile, and about 12 miles from mobile to base radio.

You can modify the radio and turn up the power, it will get you more range, and make the radio sound louder, but you will still be limited, because radio is line of sight. Hills and structures block RF signals. you go down a hill, you will loose distance.

With a cobra 29 that has been tuned up sitting on a hill about 1400 feet above sea level, I was able to talk to some one on a base radio about 50 miles away with out my amp on. I also have a very very good antenna. not something you normally see either.

With a clear on blocked line from antenna to antenna, you can talk really far on a stock radio. There is a saying for CB antenna's. "Height is might."

There are a lot of things that effect the distance a CB can reach.

If there is Skip active, you can possibly talk thousands of miles with a stock radio. Skip is when the ionosphere becomes charged by solar energy form a solar flair and causes the radio waves to bounce off them, making it seem like you have a straight line of sight to places that would normally be blocked by the natural curvature of the earth.

Then there are Linear amplifiers. They increase the power of the signal of the radio. They will increase the output range, but then you may be talking to people that don't have an amp, and that you will not be able to hear them because they do not have enough power to reach you.

So, get a really good antenna. Make sure it is tuned for the lowest possible SWR. Refer to the manual that came with your radio on how to find out your SWR, and how to lower it. There will also be instructions on how to tune the antenna that came with the antenna. Then bring the radio to a CB shop or a CB tech and have them tune it up. It will cost about $30.

With my radio barefoot, and can normally talk around 30 miles or more without worrying about hills and obstructions. (Barefoot means, without the amp on)

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1 Answer

HOW FAR IS THE DISTANCE THAT YOU CAN HEAR ON THE MOTOROLA TR50? I LOST MY OLD MANUAL


Typically handheld radios will talk line-of-sight up to 2 miles. Obstacles you put between the two radios can absorb part of the range. Talking from inside to outside of a building you may only get 1/4 to 1/2 mile. Height and placement of the antenna determines range, so the higher you are the further you will talk. If you were on a mountain top and talking to the valley below, you could talk as far as you could see, which might be significantly more than the 2 miles you would get in normal terrain. (I think the box advertises up to 5 miles, but this would be under ideal conditions, and is not realistic.)

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