Motorola RSSI to dBm Converter

[T04KLH9PW7AN]

Hello All,
I got tired of having to drag a spectrum analyzer around to walk buildings for signal strength so we made a converter that displays Motorola displayed RSSI to dBM. Enjoy all. Hope this helps.

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Link updated.

 

[KevinC]

Keep in mind that due to individualities each subscribers reading could be up to 3 dB +/-. But this is a good estimator.

 

[T04KLH9PW7AN]

You know what is a really good indicator when checking signal strength for the need for a BDA? NO COMMS

 

[KevinC]

You know what is a really good indicator when checking signal strength for the need for a BDA? NO COMMS

And of course we all know that No Comms indicates an uplink issue.

 

[Project25_MASTR]

In my experience and testing...there is enough variance between models (XTS/APX) and bands that RSSI to RSSL is great enough that results can differ by 10 dB when actually tested.

In my professional experience...not stable enough for BDA work and verifying NFPA requirements.

 

[KevinC]

In my experience and testing...there is enough variance between models (XTS/APX) and bands that RSSI to RSSL is great enough that results can differ by 10 dB when actually tested.

In my professional experience...not stable enough for BDA work and verifying NFPA requirements.

APX vs XTS is definitely different. APX vs APX is usually pretty close, but they have to have the exact same antenna and tested in the exact same spot. But still 3 dB +/- variance.

My issue with a lot of these companies testing is it doesn’t take the uplink into account at all. “We have -85 dBm downlink, we’re done, pack up and leave”.

 

[GTR8000]

RSSI display in dBm is supposedly in the pipeline for the APX series for early 2023...we'll see if it happens and what it looks like if it does.

 

[nikronzo]

RSSI display in dBm is supposedly in the pipeline for the APX series for early 2023...we'll see if it happens and what it looks like if it does.

another "following suit" after L3, the Harris radios have been doing RSSI as dBm since the Unity series and is a lot easier to read, just my personal preference.

 

[T04KLH9PW7AN]

Here is an updated link to the Motorola RSSI to dBm converter. I had to move it on the site.

 

[mikegilbert]

Thanks for this!

 

[GTR8000]

another "following suit" after L3, the Harris radios have been doing RSSI as dBm since the Unity series and is a lot easier to read, just my personal preference.

Sure, until you get some genius who doesn't quite understand that -70 is better than -90 because they didn't pay attention in 3rd grade math. 🤦‍♂️

 

[nikronzo]

Sure, until you get some genius who doesn't quite understand that -70 is better than -90 because they didn't pay attention in 3rd grade math. 🤦‍♂️

same idiot that is always posting here about having bars on their radio while tryna listen to a TRS...

 

[wsp44]

Hello All,
I got tired of having to drag a spectrum analyzer around to walk buildings for signal strength so we made a converter that displays Motorola displayed RSSI to dBM. Enjoy all. Hope this helps.

Global Communication Services Launches Non-Profit to Provide Robots for Active Shooter Response - Global Communication Services, LLC

Global Communication Services (GCS) is proud to announce the launch of Project Rover, a non-profit organization dedicated to providing robots to law

gcscomm.com

Link updated.

digging up this thread, but thank you for this.

 

[Project25_MASTR]

RSSI display in dBm is supposedly in the pipeline for the APX series for early 2023...we'll see if it happens and what it looks like if it does.

It did make it in at some point. Upgraded an APX7000 from R21.xx.xx to R29.00.00 a few weeks ago and bam...RSSI and RSSL are now displayed.

 

[prcguy]

Harris XG-100M RSSI reads out in dBm and its very accurate.

 

[GTR8000]

It did make it in at some point. Upgraded an APX7000 from R21.xx.xx to R29.00.00 a few weeks ago and bam...RSSI and RSSL are now displayed.

Correct, a year ago when R29 was released. This is a pretty old thread.

 

[ResQguy]

It did make it in at some point. Upgraded an APX7000 from R21.xx.xx to R29.00.00 a few weeks ago and bam...RSSI and RSSL are now displayed.

You make it a habit of updating radio firmware without reading release notes? Living dangerously

 

[KE4ZNR]

You make it a habit of updating radio firmware without reading release notes? Living dangerously

Especially with the last couple of revisions......oy vey....

 

[GTR8000]

That's why it's nice to have a guinea pig radio laying around.

 

[Project25_MASTR]

My Motorola's are the guinea pigs...when they lock up off to Depot they go and the Viking radios get some use.

This is what happens when you are the system admin and make sure you have multiple radios from multiple vendors on your Astro 25 system.