Integrated Wireless Network (IWN) National Capital Region

Anyone know of any changes to that system, specifically the Suitland site? I'm receiving what Unitrunker thinks is the Suitland tower but the frequency (171.750) doesn't match the RR listing for any site in the entire IWN...and receiving nothing on the frequencies already listed for Suitland.

Dean

The last time I ran Pro96Com It reported Suitland site has the following frequencies,

172.6125
171.4625
171.7500
172.1125

Zero Talkgroup activity as usual

I get talkgroups like crazy on that system, especially during weekdays, but they're all ENC

OK I admit I don't spend a whole a lot of time listening to the system

Do you have a list of talkgroups and radio IDs you have heard? I can only get a partial lock at Suitland and Greenbelt site where I am at (Jessup)

Apparently I forgot to turn logging on in UniTrunker, but here's a capture of recent activity:

CqDx said:

OK I admit I don't spend a whole a lot of time listening to the system

Do you have a list of talkgroups and radio IDs you have heard? I can only get a partial lock at Suitland and Greenbelt site where I am at (Jessup)

Click to expand...

Good stuff spleen!

Thanks

I left UniTrunker on while at work today, if you want the log I can email it...it's 5.5MB zipped....or I can Dropbox it...

CqDx said:

Good stuff spleen!

Thanks

Click to expand...

A while back a bunch of system frequencies changed. That site probably got overlooked.

And apparently, the Fairfax tower thinks that Suitland is on 171.750 as well:

I'm guessing. I just put UniTrunker on the Greenbelt tower...it's showing 169.600 Primary (which I'm decoding) with 170.875 and 172.625 as Alternates. RR is showing 171.275 instead of 170.875.

freqhopping said:

A while back a bunch of system frequencies changed. That site probably got overlooked.

Click to expand...

Interesting google search finds:

http://www.justice.gov/oig/reports/2012/a1210.pdf

http://mccmag.com/newsArticle.cfm?news_id=6498

There have been more frequency changes to the system including some control channels. There is another site too, probably in the Shenandoah Valley.

170.625

170.625 has a monster signal at my location. See attachment.

170.625 - UniTrunker

Attachment shows the info when I look at 170.625 with UniTrunker.

Site 003-001 CC 170.3875

Kind of weak at my location but I can decode it. See attachment for UniTrunker screenshot.

Site 007-001 CC 171.625

Also weak but decodeable. Attachment shows Unitrunker info for the site.

Site 015-001 CC 170.6250

Some more info from UniTrunker.

May be I wasn't paying attention before, but there seems to be two new sites popped up. Anyone in the DC/Virginia area willing to scan around and see if you can hear a control channel on these two frequencies?

RFSS 17 Site 1 - 172.5750
RFSS 18 Site 1 - 170.4000

CqDx said:

May be I wasn't paying attention before, but there seems to be two new sites popped up. Anyone in the DC/Virginia area willing to scan around and see if you can hear a control channel on these two frequencies?

RFSS 17 Site 1 - 172.5750
RFSS 18 Site 1 - 170.4000

Click to expand...

Nothing in or around Loudoun.

What does Pro96Com say for adjacent sites?

freqhopping said:

Nothing in or around Loudoun.

What does Pro96Com say for adjacent sites?

Click to expand...

That's what I grabbed off Pro96Com.

This is from the Greenbelt site
-Neighbors
#Format: TowerID,TowerIDHex,System ID,Channel,Frequency,Tower Name
101,"T0101",010,"00-0705",170.81250,"Upper Marlboro"
1101,"T0B01",010,"00-0849",172.61250,"Suitland"
1201,"T0C01",010,"00-0801",172.01250,"Silver Spring"
1401,"T0E01",010,"00-0952",173.90000,"Rockville"
1701,"T1101",010,"00-0846",172.57500,"Unknown 1"
1801,"T1201",010,"00-0672",170.40000,"Unknown 2"

This is from the Suitland site
-Neighbors
#Format: TowerID,TowerIDHex,System ID,Channel,Frequency,Tower Name
101,"T0101",010,"00-0705",170.81250,"Upper Marlboro"
301,"T0301",010,"00-0671",170.38750,"Bull Run Moountain"
401,"T0401",010,"00-0575",169.18750,"FBI HQ"
501,"T0501",010,"00-0608",169.60000,"Greenbelt"
601,"T0601",010,"00-0501",168.26250,"Tysons Corner"
801,"T0801",010,"00-0519",168.48750,"Crystal City"
901,"T0901",010,"00-0817",172.21250,"Alexandria"
1201,"T0C01",010,"00-0801",172.01250,"Silver Spring"
1301,"T0D01",010,"00-0539",168.73750,La Plata""
1801,"T1201",010,"00-0672",170.40000,""

This is from the Marlboro site
-Neighbors
#Format: TowerID,TowerIDHex,System ID,Channel,Frequency,Tower Name
501,"T0501",010,"00-0608",169.60000,"Greenbelt"
1101,"T0B01",010,"00-0849",172.61250,"Suitland"
1201,"T0C01",010,"00-0801",172.01250,"North DC/Silver Spring"
1301,"T0D01",010,"00-0539",168.73750,"La Plata"
1701,"T1101",010,"00-0846",172.57500,"Unknown"