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Help programming a GMRS repeater into APX 7000

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gt5837c

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Don't. You can do better.

Get a good COMMERCIAL grade antenna and good coaxial cable.
But before doing anything, take the handheld radio outside, in the clear, preferably on top of a high building or high hill.
I will follow @MTS2000des recommendations below!
 

dickie757

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Something I noticed on the Tx side...the dcs of 114 could be misinterpreted while tx'ing as 141. I have never experienced it personally, only read about it.

Another thought...what is the antenna on the radio? Is it UHF capable? I'd guess the test you did on the simplex channels was very close, and paperclip would have worked, while confirming your programming.
 

a417

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Something I noticed on the Tx side...the dcs of 114 could be misinterpreted while tx'ing as 141. I have never experienced it personally, only read about it.

Another thought...what is the antenna on the radio? Is it UHF capable? I'd guess the test you did on the simplex channels was very close, and paperclip would have worked, while confirming your programming.

you didn't say the following, but my copypasta makes it look like you did. apologies.
Below is a list of all 83 standard DCS code groups. In each group, the first line is a list of the matching normal polarity DCS codes. The second line below it is the DCS codes from the matching inverted polarity 23-bit DCS word. The DCS code groups are separated by dashed lines. This is a complete listing of all the matching DCS codes for each group, including the ones that are normally ignored and not used. The bold DCS codes show in blue are the DCS codes that normally get used from the so called "standard" set of 83 codes. Just a reminder, even though the ignored codes are shown, it does not mean your radio's DCS system can encode or decode them correctly (just use the standard codes). However, mathematically the waveforms produced by each individual group are all related through shifting for the "100" bit pattern decode and signal inversion.

+136, +502, +712
-114,
-327, -615
+114, +327, +615
-136, -502, -712
I grabbed that from a linked page earlier in this thread (forgive the formatting), you will see that 141 does'nt even accidentally decode into 114, either N or I.

provided what he showed us was pushed into the radio correctly, he has DCS of 114 on both sides. Are you saying that you have proof of a APX7000 being told to use D114N, and sending D141N?

He's also already stated that he's programmed in other frequencies in the same service/band in the unit, and confirmed they work correctly.
 
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dickie757

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Right, close range simplex work. Would work through a ripe banana if programming is correct.

As far as DPL, again, anecdotally, 114114114114114114114114114 has 141 in it. Not that the transmitter is doing it wrong, but the receiver is out of sequence by one spot.
 

gt5837c

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If the radio is not receiving anything in CSQ mode on the correct frequency, you're either out of range, or something is wrong with the radio itself. You didn't state what other band the 7000 has, and if the second band is enabled. Looking at your CPS screenshot, it appears that it may have VHF capability. If so, program your local NOAA Weather Radio frequency and see if it receives that signal. If yes, find any local UHF repeater and make sure it receives that as well. If yes to both, then you can pretty much conclude that you're out of the range of this GMRS repeater. And as @mmckenna stated, those "range circles" should be taken with a grain of salt, they are simply a best guesstimate under ideal conditions.
Just wanted to say thank you very much to @GTR8000, this was a very straightforward suggestion - NOAA - that was easy to research, program and test. I can confirm that I can pickup the local NOAA frequency no problem, and it sounds great. In fact I kinda like it!

Do you have any similar suggestions for any other similar frequencies to monitor?

When I look here, at RadioReference, there is so much radio traffic in the Atlanta area that it's kind-of overwhelming. I wish that this radio could monitor ATL Approach, but those frequencies are below my reach.
 

a417

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I wish that this radio could monitor ATL Approach, but those frequencies are below my reach.
they are AM (amplitude modulated) transmissions.

(don't have an APX - but I don't think they can recieve them)
 

gt5837c

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Just wanted to close this thread out for any of you that were curious, @a417, @mmckenna and @MTS2000des - you were all correct. It was the proximity to the repeater. I was able to drive up to that end of the state today it the radio immediately picked up the traffic - using my original programming - and I was able to get a radio check from other folks on the repeater as well. It was good. Thank you all again for your help!
 
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