I have had a couple of Baofengs which were plenty sensitive, in that they hear the FM satellites as well as any other radio I have had.

In any model there will be some failures. But that doesn't mean the whole line is bad

73 John AF5CC?

Sent using Zoho Mail

---- On Thu, 18 Jul 2024 18:58:10 -0500 vk2xlj@... wrote ----

Hello Ricky,

Baofengs since they are built to a price (low price) do not perform like others in the marketplace. You get what you pay for. It is well known that Baofengs are unsensitive, unselective and their transmitters are dirty as their harmonics are way too high.

Because of this, they are totally banned in some countries and here in Australia, amateurs are the only people who are allowed to use them, since we are allowed to design and build our own radios.

If you want a radio that should perform to spec, spend a few more dollars and buy a more reputable brand.

Regards,

Doug VK2XLJ

---

From: [email protected] <[email protected]> on behalf of Richard Patrick <599kr7w@...>
Sent: Friday, 19 July 2024 3:52 AM
To: [email protected] <[email protected]>
Subject: [Baofeng] UV-25... Need some help

?

Greetings;

?

I bought a UV-25 from an Ebay store, and the radios receiver was Insensitive, it receives poorly.? ?

?

After complaining, the Ebay seller sent me another radio.? ?It turns out that both radios receivers are insensitive.??

?

Using a TinyVNA's signal generator, through a switched step attenuator, the full quieting receive level is approximately -90dBm on 146, 440 MHz + WX channels.? ? This level equates to approx. 6uV, or S6.? ? ?VNA's signal generator sends a quiet carrier, no modulation.

?

Using the same testing method on my other handy talkies, I achieve full quieting at -115 to -120 dBm.? ? ? ? ? Note:? I used my Rigol Spec Analyzer to verify that my test signals are accurate +/- 1dB.??

?

Searching Google and Youtube for help- I find Zilch.? ?Could there an option that I don't understand the meaning of that could be set wrong?? ? ?Any help is much appreciated.

?

Thanks in Advance.

--

73,

Ricky? ?

Ammon, ID

Hello Ricky,

Baofengs since they are built to a price (low price) do not perform like others in the marketplace. You get what you pay for. It is well known that Baofengs are unsensitive, unselective and their transmitters are dirty as their harmonics are way too high.

Because of this, they are totally banned in some countries and here in Australia, amateurs are the only people who are allowed to use them, since we are allowed to design and build our own radios.

If you want a radio that should perform to spec, spend a few more dollars and buy a more reputable brand.

Regards,

Doug VK2XLJ

---

From: [email protected] <[email protected]> on behalf of Richard Patrick <599kr7w@...>
Sent: Friday, 19 July 2024 3:52 AM
To: [email protected] <[email protected]>
Subject: [Baofeng] UV-25... Need some help

?

Greetings;

?

I bought a UV-25 from an Ebay store, and the radios receiver was Insensitive, it receives poorly.? ?

?

After complaining, the Ebay seller sent me another radio.? ?It turns out that both radios receivers are insensitive.??

?

Using a TinyVNA's signal generator, through a switched step attenuator, the full quieting receive level is approximately -90dBm on 146, 440 MHz + WX channels.? ? This level equates to approx. 6uV, or S6.? ? ?VNA's signal generator sends a quiet carrier, no modulation.

?

Using the same testing method on my other handy talkies, I achieve full quieting at -115 to -120 dBm.? ? ? ? ? Note:? I used my Rigol Spec Analyzer to verify that my test signals are accurate +/- 1dB.??

?

Searching Google and Youtube for help- I find Zilch.? ?Could there an option that I don't understand the meaning of that could be set wrong?? ? ?Any help is much appreciated.

?

Thanks in Advance.

--

73,

Ricky? ?

Ammon, ID

On 7/18/24 13:02, John Geiger AF5CC via groups.io wrote:

Does Amazon tend to have better radios?

I don't know.

On 7/18/24 10:52, Richard Patrick via groups.io wrote:

Greetings;

I bought a UV-25 from an Ebay store, and the radios receiver was Insensitive, it receives poorly.? ?

...

Buying from such a source is ill-advised. As I understand it, Baofeng has good QC, and radios that don't pass the final test get onto a shrink-wrapped pallet and auctioned to the highest bidder,? rather than repaired to specifications. Those are the radios that are sold on eBay, which explains why you got a second one as a replacement.

Choose a vendor who buys the radios that pass QC, such as ... it's worth the money.

Have you considered a ba lot of radios, possibly?

Get BlueMail for Android

On Jul 18, 2024, at 13:03, Richard Patrick <599kr7w@...> wrote:

Greetings;

?

I bought a UV-25 from an Ebay store, and the radios receiver was Insensitive, it receives poorly.? ?

?

After complaining, the Ebay seller sent me another radio.? ?It turns out that both radios receivers are insensitive.??

?

Using a TinyVNA's signal generator, through a switched step attenuator, the full quieting receive level is approximately -90dBm on 146, 440 MHz + WX channels.? ? This level equates to approx. 6uV, or S6.? ? ?VNA's signal generator sends a quiet carrier, no modulation.

?

Using the same testing method on my other handy talkies, I achieve full quieting at -115 to -120 dBm.? ? ? ? ? Note:? I used my Rigol Spec Analyzer to verify that my test signals are accurate +/- 1dB.??

?

Searching Google and Youtube for help- I find Zilch.? ?Could there an option that I don't understand the meaning of that could be set wrong?? ? ?Any help is much appreciated.

?

Thanks in Advance.

--

73,

Ricky? ?

Ammon, ID

Greetings;

?

I bought a UV-25 from an Ebay store, and the radios receiver was Insensitive, it receives poorly.? ?

?

After complaining, the Ebay seller sent me another radio.? ?It turns out that both radios receivers are insensitive.??

?

Using a TinyVNA's signal generator, through a switched step attenuator, the full quieting receive level is approximately -90dBm on 146, 440 MHz + WX channels.? ? This level equates to approx. 6uV, or S6.? ? ?VNA's signal generator sends a quiet carrier, no modulation.

?

Using the same testing method on my other handy talkies, I achieve full quieting at -115 to -120 dBm.? ? ? ? ? Note:? I used my Rigol Spec Analyzer to verify that my test signals are accurate +/- 1dB.??

?

Searching Google and Youtube for help- I find Zilch.? ?Could there an option that I don't understand the meaning of that could be set wrong?? ? ?Any help is much appreciated.

?

Thanks in Advance.

--

73,

Ricky? ?

Ammon, ID

On 7/4/2024 18:13:56, Donald Hellen <donhellen@...> wrote:

On Thu, 4 Jul 2024 14:58:06 -0700, "Mike Kimsey" wrote:

>Spend the money and buy RT Systems programming software it makes things so
>much easier.

CHIRP does the job just fine once it's set up. RT Systems is just a little more
polished and supports more radios than CHIRP, I believe. RT systems (last time I
bought their package several years ago) charges about $25 for their cable and
$25 for the software when bought together. But, the good part is that if you buy
the package from them, it will work, and there's good support if you need it.

I've used both. I don't really see CHIRP as being difficult to use, but I won't
buy a cable with the Prolific chipset. I get one that uses the FDTI chip or
there's another one from China that also works well, though they don't supply
instructions for it. You have to find the driver on your own.


Donald KX8K



----------------------------------------------------
Some ham radio groups you may be interested in:
/g/ICOM /g/Ham-Antennas
/g/HamRadioHelp /g/Baofeng
/g/CHIRP https://rf-amplifiers.groups.io/g/main