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Mini Walkie Talkies


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#21 Logan5

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Posted 03 July 2018 - 07:09 PM

I would say highly likely. so I plan to try to replicate the results.  should I have an exact measure from antenna to antenna? How can I prove it's not user error? I only have one spectrum analyzer. used same RX antenna on the analyzer. I will try again.


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#22 Hans

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Posted 03 July 2018 - 08:38 PM

I would say highly likely. so I plan to try to replicate the results.  should I have an exact measure from antenna to antenna? How can I prove it's not user error? I only have one spectrum analyzer. used same RX antenna on the analyzer. I will try again.

 

I have no idea if the measurement, antenna to antenna, should be exactly the same. As you know, there are some really knowledgeable techs here that hopefully will chime in. My question about user error was since you were relatively new using the equipment. I was trying to gauge how confident you felt about your results. If you are very confident then I am satisfied that it is a good datapoint to consider on these little radios.

 

I appreciate that you are taking the time to test these. It's always a nagging question in the back of my head about radios our family & group use. :)



#23 berkinet

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Posted 04 July 2018 - 02:38 AM

Found this... IMG_20160826_115553.jpg

on this site... http://www.opg.org/2...able-toy-radio/
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Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.

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#24 Logan5

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Posted 04 July 2018 - 10:48 AM

Thanks Berkinet, This analyzer output looks similar, only the second peak is about 1/2 to 2/3rds the height of the main peak under my test. Also I noticed more low power scatter. I imagine it is different from radio to radio of the same model. lack or absence of quality control is likely to blame.


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#25 Logan5

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Posted 04 July 2018 - 05:57 PM

This is the best picture I cold take of the output

Attached Files


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#26 Logan5

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Posted 04 July 2018 - 07:42 PM

Found this...

on this site... http://www.opg.org/2...able-toy-radio/

I read the part about the spectrum analyzer picture and he did not think the TX was at all foul? did not even mention the side peak. I should also mention mine is an all together different radio.


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#27 Hans

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Posted 05 July 2018 - 03:13 AM

In the past, I was all over that site due to the internal radio photos. Unfortunately, my antivirus has been flagging the site as infected with URL:MAL for quite a while so I haven't been there in some time. Thanks both of you for the information. I always suspected the radio was a little dirty due to how my base radio sometimes reacted on UHF when these Tx; even 3 floors away. I wasn't totally sure that it wasn't a problem with my base selectivity. Now, it looks like these radios are more likely than not the culprit.



#28 berkinet

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Posted 05 July 2018 - 04:46 AM

...Unfortunately, my antivirus has been flagging the site as infected with URL:MAL for quite a while so I haven't been there in some time....

I am on a Mac, (current everything) and get no virus/malware warnings with Safari, Chrome or Firefox. Maybe it is safe for you to try again.


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#29 Hans

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Posted 05 July 2018 - 11:43 AM

I am on a Mac, (current everything) and get no virus/malware warnings with Safari, Chrome or Firefox. Maybe it is safe for you to try again.

 

I don't believe there is an actual threat and I have other burner systems I can check it with. It's just been throwing that error for a long time now on that site. AFAIK, they haven't changed the content for years and I might even have it backed up on a hard drive or other media. As it stands now, I have to do an exception for my antivirus if I want to view it and I don't think there is any new content to make the risk worthwhile for me. I was pointing out that AV message in case others encounter it as well. It's all good.



#30 bpendleton

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Posted 27 July 2018 - 08:43 PM

Nevermind, found it: 2AAR8RETEVISRT22. Indeed, certified for FRS with 1W. Only narrow-band? Repeater-capable?

 

Sorry, forgot to come back. The Amazon listing advertises them as 2W. From the settings that come out in CHIRP when you download its settings, it appears to be using wideband and 2w on all of the channels (all of which are the 2w FRS/GMRS shared channels under the latest regs). Otherwise, the programming software doesn't appear to be locked down, but I haven't tried setting any channels that aren't in GMRS yet, either. I've had no problems using repeaters, except for the fact you have to program them first for each one, which is a bit of a drag.



#31 berkinet

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Posted 28 July 2018 - 01:06 PM

...you have to program them first for each one, which is a bit of a drag.

It is. However, the other option is for the vendor to decide how the channels should be organized (like the BTECH GMRS-V1). Personally, I'd rather have the freedom to decide. This can be important when the radios are used as part of some organization or service where you may want to monitor non-GFMRS services, and/or have the repeater channel(s) in specific memory locations, etc.

 

YMMV


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-- Marcus Aurelius


#32 Hans

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Posted 09 August 2018 - 03:23 AM

Yeah, that freedom to customize is a huge plus; the actual doing, not so much. I'll take the extra work over locked down radios anytime. I've always been a big commercial Motorola fan but their programming hoops, etc always drive me away. I end up going non-/\/\ for less hassle and more air time.


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