RSSI Calibration on XTS3000

[MtComm]

Thanks to Shaun, I was able to put my 3K into the mode where pressing
the purple button reads out the RSSI of the received signal on a smartzone
800 MHz system. The values range from about a low of 20 to a high of
about 81 which is the strongest signal. Does anyone have the curve or table of RSSI vs dB? I called Moto and they claim not to have it.

Mike

[Jay]

If I am not mistaken, the highest is 87. Thats the highest I've ever seen mine, even standing up under the site.

Jay

Does anyone have the curve or table of RSSI vs dB? I called Moto and they claim not to have it.

Mike

[Dale Earnhardt]

I think it depends on each radio too.

[wavetar]

Different radio models, such as MCS2000/MTS2000/XTS3000/Astro Sprectra all have their own unique RSSI numbering scale. All XTS3000 units should be the same though, unless there's a difference between early & later firmware versions or something. It wouldn't be difficult to make a chart for someone with a trunking capable R-2670 or eqiuvalent monitor. I have one, and have never thought of making a chart. I will if I can find some spare time in the next few days.

Todd

[MtComm]

Thanks for the replies. Those of you that stated that 87 was the high are
correct. Not sure the low. I would appreciate Todd running the data since he has a trunking signal generator. Moto did tell me that it once the
dB reach some level then the RSSI stays at 87. I not sure the low but I
think I have seen something in the 20's. I am interested in running some
test on different type of building to see the attenuation. Every 5 level of
RSSI or dB would be great.

Also Moto has proposed to the FCC to program attenuator software into
the XTS5000 to solve the Docket 02-55 Interference problem. If the signal is better than 90 dB then they cut in 10 dB of loss and this is
suppose to solve the Nextel Interference/Intermod problem. I would like
to see how often the signals here exceed 90 dB.

Thanks to all,

Mike