TRX-2: The frequency you entered is invalid for this radio

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AKJohnny

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Can anyone tell me why I get the message "The frequency you entered is invalid for this radio" when trying to add the following frequencies?
472.947000
472.572000
472.397000
I have Flex Step enabled and bandplan US. I'm trying to add these frequencies for a NXDN48 site that's not listed in RR. I found these using SDR with my Airspy which is accurate according the everything else I receive.
This TRX-2 is new to me and I'm at a loss. Can anyone else successfully enter these freqs in? Thanks!
 

ecps92

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Those are not valid US Frequencies.
472.947000 is likely 472.9500
472.572000 is likely 472.5625 or 472.5750
472.397000 is likely 472.3875 or 472.4000

ULS License - Industrial/Business Pool, Trunked License - WPRJ832 - A BEEP, LLC - Frequencies Summary

472.947000 is likely 472.9375
Can anyone tell me why I get the message "The frequency you entered is invalid for this radio" when trying to add the following frequencies?
472.947000
472.572000
472.397000
I have Flex Step enabled and bandplan US. I'm trying to add these frequencies for a NXDN48 site that's not listed in RR. I found these using SDR with my Airspy which is accurate according the everything else I receive.
This TRX-2 is new to me and I'm at a loss. Can anyone else successfully enter these freqs in? Thanks!
 
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mike_s104

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AKJohnny

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What I did was off the top of my head. [emoji4]

Sent from my SM-G930V using Tapatalk
I actually did what you suggested, thought I already tried that, but it took the freqs. I'm now comparing the TRX-2 to the SDR, and a bit disappointed, but need to spend more time tweaking. Thanks!
 

MichaelBhere

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Make sure you update your TRX-2 CPU using EZ scan as there was an issue with some NXDN systems on the previous release.and most are reporting the latest CPU fixed their issue.
 

AKJohnny

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the problem is with the sdr.

it did get you close though.


My SDR is way closer to the correct freqs than what's in RR database for the system I'm trying to listen to.
If I use RR, I barely hear anything. When I use my sdr freqs I hear way more but not everything. I need to spend more time experimenting. This is the system I'm working on. Once I perfect it, I'll submit to RR.
http://www.radioreference.com/apps/db/?sid=5883
 

ecps92

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Based on what you posted, the SDR is off
If the Freq does not divide evenly using 12.5 or 6.25 (Newer Narrowbanded channels) then the SDR is off Frequency
An Example of (after the decimal point) valid US Allocations at 12.5 Khz

0000
0125
0250
0375
0500
0625
0750
0875






My SDR is way closer to the correct freqs than what's in RR database for the system I'm trying to listen to.
If I use RR, I barely hear anything. When I use my sdr freqs I hear way more but not everything. I need to spend more time experimenting. This is the system I'm working on. Once I perfect it, I'll submit to RR.
Diga-Talk (NID-14) Trunking System, Various, Multi-State - Scanner Frequencies
 

AKJohnny

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Based on what you posted, the SDR is off
If the Freq does not divide evenly using 12.5 or 6.25 (Newer Narrowbanded channels) then the SDR is off Frequency
An Example of (after the decimal point) valid US Allocations at 12.5 Khz

0000
0125
0250
0375
0500
0625
0750
0875
Thanks, I get that now. And I did make very minor adjustments to the freqs that are closer to my sdr, and they perform better that what's posted on RR. So neither my freqs or RR's are perfect, but my goal is to find what works just right on the TRX-2. Thanks!
 

wtp

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Location
Port Charlotte FL
it would mean

that the sdr is more sensitive than the trx.
yes usually if you are right on freq you hear it better but not always.
just because i can hear 107.9 fm on 108.0 does not mean they are off freq.
 
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