Question about Uniden GMR638-2CK (22 Channels) 2-Way Radio

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Two way radio cross model compatbility

Can i use a uniden model to communicate with motorola model handset or with another uniden model?

I have a pair of 6 Mile range uniden and i am plannig to buy another pair of 10 mile uniden. can i have a one to many using the four handsets. what should i do for that
-Nagu

Posted by nagu_g on

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Hi,

Normally yes just as long as the frequency assignment to each channels are the same and no security/locking (such as (CTSS) is in place.

You have to check if the frequency settings of the Motorola matches those of the uniden.

Good luck and kind regards.

Posted on Oct 23, 2007

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1 Answer

Why does screen indicate "searching"?


The handset cannot communicate with its base.

When the handset cannot establish its secure (encrypted) radio
link with the base it is 'paired with' or 'registered' to, it will first
say "Connecting....", then it will display "Out of Range or No
Power at Base", then it settles at the infamous "Searching..."
display.

Although rare, the registration between base and handset can
become corrupted and lost so that we must de-register and
then re-register the pair.

First, ensure that power is 'on' at the base (a more common cause)
and the cradle will charge the handset, etc.

Second, be sure the handset battery is well charged as a weak battery will interfere with the registration process.

Then try the following ( 'works for the D1680, D1481, and similar):

To deregister the handset:

1. Press and hold the [END] and [ # ] keys at the same time,
after a few seconds the display will say
"System Reset, Deregister Handset"
press [SELECT]
scroll to "Base Unavailable"
press [SELECT] (chirps) press [END]
display reads "Place in base..."

Next, to re-register the handset:

2. Set the handset into the base cradle and wait,
after ~30 seconds the handset should display
"Handset #" and be good to go...
or it will display "Registration Failed"

Good luck!
--

Mar 20, 2016 | Uniden DECT 6.0 Cordless Phone

Tip

How To Reset and Re-Register Your Uniden Handset and Base


<b>Clear the Handset's Base Data<br /></b>1.To remove the base data from a handset when out of range of the base, press and hold the 'end' button and the '#' button simultaneously until the phone beeps.<br />2.It will now be de-registered from the base.<br />Note: This requires that the base and handset can communicate with each other.<br /> <br /> <b>Clear the Base Handset Data</b><br />1.To de-register all handsets from the base, remove power to the base, and remove the handset from the base.<br />2.Press and hold the 'flash/find hs' button while applying power.<br />3.Wait for the beep and release the button.<br />4.The charge light will now flash.<br />5.Sit any handset in the cradle.<br />6.When the flashing stops, re-register the handsets to the base.<br /> <br /> <b>Re-Register a Handset to the Base<br /></b>1. Remove Handset Battery.<br />2. Reconnect battery while holding down "*" and "#" key.<br />3. Then press the right upper key under the LCD.<br />4. Press the "End" key.<br />5. Wait a few seconds and then the phone will be ready to register to the base.

on Feb 14, 2011 | Uniden DECT 6.0 Cordless Phone ID

1 Answer

I can get signal from handset to hand set but no voice


Make sure both have the SAME CTSS tones one may wrong RX CTSS.

Apr 16, 2015 | Cobra LI-7200-2 WX VP Micotalk GMRS/FRS...

3 Answers

My uniden phone says - out of range


I just finished fighting my phone for this same problem.Try unplugging the base for a minute and plug back in. I had a dead battery, changed it, it still said out of range. Next I deregistered it by holding the "off" and # buttons until the menu popped up saying "deregister". I had to select "deregister without the base" to get it to work. After all this, I unplugged the base, and that is what solved my problem.

May 25, 2010 | Uniden TRU9585 Cordless Phone

1 Answer

Purchased addt'l handset to work with my CEZAI2998. It has a corded handset in the base and an accessory handset with charger. Needed another accessory handset; purchased EZX290 but can't get it to...


Hi,

The CEZAI2998 does allow up to a total of 6 handsets, but your issue is that the EZX290 handset is not one that will function with that system. I have listed below the compatible handset models for that Uniden unit and as you can see the EZX290 is not supported. Sorry to be the bearer of bad news, hopefully you can exchange it for a compatible handset. Good luck!!

EJ

Compatible with select Uniden handsets
Including models DCX150, DCX200, DCX210, DCX290, DCX300 and DWX207 for wide-ranging compatibility.

Apr 10, 2010 | Uniden DECT 6.0 Cordless Telephone...

1 Answer

Who knows where can i buy a 50 to 100 mile two way radio


You would need a repeater (maybe two repeaters) to carry a signal that far. For such long range communication, I would suggest using a cell phone with PTT (Push to Talk) feature. These phones can transmit nationwide on the cellular network. AT&T carries these phones as well as Nextel and Boost Mobile. These phones are now standard issue for the United States Secret Service.

These phones can act just like a standard two-way radio as well as a cell phone. Several Motorola model phones can be used on these networks and also have MotoTalk.

MotoTalk is a feature of PTT handsets that allows communication between two or more units even when they're out of range of the cellular network. (Maximum range is stated as being up to 8 miles - but realistically it's closer to about 4 miles depending on terrain).

Jan 13, 2010 | Motorola Walkie Talkie 2-Way Radio

1 Answer

Uniden GMR-1035 2-way radion, with advertised 10 mile range


The range estimates are inflated by every manufacturer I am familiar with.
Even with line-of-sight transmission, I have found none that meet the claimed distance under common circumstances.

If you have a friend who is a radio amatuer, you might let him crack the case on one to see if there are any adjustments that could be improved; an 'old dog' would be able to locate the right area in which to look and perhaps tweak something to improve either transmitted power (he should have an instrument that would monitor it for adujstment if not for actual measurement) or improve receiver sensitivity.

The factory is only concerned with function and cost, not performance.

That the Motorola meets its stated range doesn't surprise me; they were long one of the most ethical companies around.
I'm not sure of their honesty today since profit (or even survival) has become more important.

Jul 05, 2008 | Uniden GMR-1035-2 2-Way Radio

1 Answer

Motorola Talkabout T5720


Hello kenyond,

The range that you can expect to see when using two-way radios is very dependent on local conditions. These radios are very line-of-sight dependent. Obstructions like mountains, hills, tall buildings, thick vegetation, and using the radio in a shielded environment such as inside of an automobile can block your line of sight and limit your effective communications range.

That “maximum 5 mile” advertised range is probably only practical in a situation where the user of one of the radios has some significant elevation (such as being on top of a tall hill) and therefore has increased line of sight. When communicating over relatively level ground that is clear of obstructions, you can probably expect a reliable communications range of about a mile.

Best Regards,
Agent Ken
"Go Ahead. Use Us."

Jun 28, 2008 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Handheld won't communicate with the base


i have the same problem and it has happened infrequently several times. you probably have to deregister the handset and re-register it and rest the base and handheld to communicate since my model is different from yours there may be differences in how to go about it but for my model the suggestion is as follows:

go to www.uniden.com for customer support here is a direct link to some frequentlt asked questions http://www.mycusthelp.com/uniden/supportfaq.asp?sSessionID=&lstFilter_a=&lstFilter_b=&lstFilter_c=&txtCriteria=hanset+won%27t+connect+to+base&optcond=2&iStartCount=1


DCT Series Multi Handset Phone - reset to have base and handsets communicate

Question:
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I have a DCT Series Multi Handset phone and one or more of the handsets is not working, what should I do?
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Answer:
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Try resetting the phone system by using the following steps:

1) Enter the "System Reset" menu, then "Deregister HS" submenu.
2) Press volume/up or down arrow keys to select the handset ID to be de-registered from the list, then press the OK soft key.
3) Press the OK soft key. You will hear a confirmation tone. When de-registration is complete, "Deregistration Complete" appears.

4) After de-registering the handset, move to "Replacing the Base Setting" below. When you go through the deregister procedure if you get "out of range", That is okay. Go ahead and go to the next step.

Replacing the Base Setting
1) Enter the "System Reset" menu, then "Replacing Base" submenu. "Do you want to replace Base?" appears.

2) Press the OK soft key. You will hear a conformation tone. The base information will be deleted. When replacing the base is complete, "Please Register" appears, register the handset to the new base.

If your handset is reading out of range. Check the the main base and make sure you unit has power. This can be done by placing the handset in the main base to see if the charge in use light comes on.
If your main base isn't getting power please make sure the ac adapter is plugged in and is warm to the touch. If not the ac adapter would be damaged.
To resolve out of range follow the below steps.
Press and hold the end key.
Press and hold the # key.

Release the keys and select replacing base and press select.
You will see Replace base?
Select Yes and press select.
Now place the handset on the base and it should register to the base and allow for calls to be made.
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Jan 23, 2008 | Uniden CXAI5198 Corded Phone

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