Lee County IA

WillB

Member
Joined
Jul 8, 2009
Messages
329
Location
Henry County

Now that this system is close to going live, would it be worth adding these frequencies to the database?

From a previous post that is now locked:

LEE, COUNTY OF
2530 255TH STREET
MONTROSE IA 52639
ULS FCC View

Callsign: WRMN220
Radio Service: YE-Public Safety/Special Emergency and Public Safety, National National Plan, 806-817/851-862 MHz, Trunked

RADIO COMMUNICATIONS FOR PUBLIC SAFETY USE

Action: ISSUED


Area of Operation
----------------------------------------------------------------------
1 FIXED 403755.0N 091261.0W FORT MADISON LEE IA
2 FIXED 403848.8N 091343.9W DONNELLSON LEE IA
3 MOBILE 32.0 KMRA around site

Pwr ERP # of # of (A)nalog
Ref Class Freq Out Out Units Pagers (D)igital (X)Unknwn
----------------------------------------------------------------------
1 FB2 855.23750 100 170 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
1 FB2 855.73750 100 170 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
1 FB2 856.48750 100 170 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
1 FB2 857.98750 100 170 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
2 FB2 855.23750 100 265 1 0 8K10F1D (D),8K10F1E (D),8K70D1W (D),9K80D7W (D)
2 FB2 855.73750 100 265 1 0 8K10F1D (D),8K10F1E (D),8K70D1W (D),9K80D7W (D)
2 FB2 856.48750 100 265 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
2 FB2 857.98750 100 265 1 0 9K80D7W (D),8K70D1W (D),8K10F1E (D),8K10F1D (D)
3 MO 810.23750 035 035 400 0 8K10F1D (D),8K10F1E (D),8K10F1W (D)
3 MO 810.73750 035 035 400 0 8K10F1D (D),8K10F1E (D),8K10F1W (D)
3 MO 811.48750 035 035 400 0 8K10F1D (D),8K10F1E (D),8K10F1W (D)
3 MO 812.98750 035 035 400 0 8K10F1D (D),8K10F1E (D),8K10F1W (D)
 

4thhawk

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Feb 17, 2010
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4
Location
Keokuk, IA
Any update on this? Lee County has now switched. I’m not able to find the new frequencies for Keokuk.
 

WB0VHB

Member
Joined
Oct 30, 2009
Messages
159
Location
Mt. Union, Iowa
The Lee Co system appears to be a simulcast system with all towers potentially able to use any of the licensed frequencies.
855.2375, 855.7375, 856.4875 & 857.9875. The Keokuk tower could use any of these.
I'm on the edge of their coverage area and waiting for a 850 MHz yagi to arrive.
 

jvradenburg

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Dec 1, 2018
Messages
36
Location
Somewhere, USA
I wonder if the people that recommended they go digital actually knew what they was talking about or maybe they just wanted to sell the county digital equipment lol
 

mws72

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Mar 30, 2002
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805
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Quad-Cities (IA-IL) USA
I wonder if the people that recommended they go digital actually knew what they was talking about or maybe they just wanted to sell the county digital equipment lol

Well it's the favor of the time. At least they went with one of the two systems in Iowa. They could of went to starcom21 like Muscom in Muscatine County or MOSWIN out of Missouri if hey would want out of state agencies in theirs. Or even go exotic with their own system like Tetra or MPT1327.
 

jvradenburg

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Dec 1, 2018
Messages
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Location
Somewhere, USA
Well it's the favor of the time. At least they went with one of the two systems in Iowa. They could of went to starcom21 like Muscom in Muscatine County or MOSWIN out of Missouri if hey would want out of state agencies in theirs. Or even go exotic with their own system like Tetra or MPT1327.
Yeah either way you look at it the digital communications isn't going to do 100% what they want because I can tell you right now digital doesn't Fair too good in buildings or over vast areas unless you've got a lot and lot of repeaters lol
 

NVAGVUP

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Jun 13, 2007
Messages
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Yeah either way you look at it the digital communications isn't going to do 100% what they want because I can tell you right now digital doesn't Fair too good in buildings or over vast areas unless you've got a lot and lot of repeaters lol
Let's step back.

RF is RF, no matter the protocol type. Analog, P25, DMR.

If you want to compare apples to apples, the effective/usable coverage of digital exceeds analog. (Assuming same 12.5 KHz channel BW). As the signal level reaching a receiver decreases, the audio integrity/fidelity is relatively constant with digital protocols vs the continued degradation of audio recovery in analog.

If your receiver signals are -100 to -118 db (Nearing RX spec), digital audio is fantastic. How many users will ask the transmitting party to repeat their transmission when using analog? Unless you have a love affair with popcorn, white noise, digital protocols (P25 an DMR are the only ones I have experience with) have better user experience.

The ONLY place analog can place that analog can outperform digital is when signal levels reach/exceed 5% BER. An analog receiver may unmute and you might be able to recognize a voice, albeit unintelligible content. Digital audio will be unintelligible or rx will stay muted. But with specs of modern receivers, if your system routinely operates with these signal levels, it is inadequate no matter the protocol.

EX. ~ 2007, the local PS built a 5 channel VHF simulcast system. (3 TX and 7 RX only sites, per channel) All repeaters/antennas/ freq BW/ power levels were EXACTLY the same with one exception. 4 Channels were P25, last channel was analog. (At the insistence of the Fire Dept). At the time of coverage testing by field users, the FD found the "usable" range of their P25 channel far exceeded the analog channel. Within 2 years the 5th channel was converted to P25.
 

WillB

Member
Joined
Jul 8, 2009
Messages
329
Location
Henry County
Would anyone be willing to look at my programming to make sure I have this programmed correctly in my SDS200?
 

jvradenburg

Member
Joined
Dec 1, 2018
Messages
36
Location
Somewhere, USA
Let's step back.

RF is RF, no matter the protocol type. Analog, P25, DMR.

If you want to compare apples to apples, the effective/usable coverage of digital exceeds analog. (Assuming same 12.5 KHz channel BW). As the signal level reaching a receiver decreases, the audio integrity/fidelity is relatively constant with digital protocols vs the continued degradation of audio recovery in analog.

If your receiver signals are -100 to -118 db (Nearing RX spec), digital audio is fantastic. How many users will ask the transmitting party to repeat their transmission when using analog? Unless you have a love affair with popcorn, white noise, digital protocols (P25 an DMR are the only ones I have experience with) have better user experience.

The ONLY place analog can place that analog can outperform digital is when signal levels reach/exceed 5% BER. An analog receiver may unmute and you might be able to recognize a voice, albeit unintelligible content. Digital audio will be unintelligible or rx will stay muted. But with specs of modern receivers, if your system routinely operates with these signal levels, it is inadequate no matter the protocol.

EX. ~ 2007, the local PS built a 5 channel VHF simulcast system. (3 TX and 7 RX only sites, per channel) All repeaters/antennas/ freq BW/ power levels were EXACTLY the same with one exception. 4 Channels were P25, last channel was analog. (At the insistence of the Fire Dept). At the time of coverage testing by field users, the FD found the "usable" range of their P25 channel far exceeded the analog channel. Within 2 years the 5th channel was converted to P25.
We use DMR for work inside the building it sucks outside works great we used to have analog it worked great inside the building and outside the building.....
 

JB805901

Newbie
Joined
Oct 29, 2022
Messages
2
Location
Montrose
Sorry to report but it appear Keokuk PD is full time encrypted.
Would you happen to know if the whole of Lee County first responders are using encryption? I am having A hard time getting my scanner to work for my county. Or maybe some info on where I could research this subject? Sorry if this post violates the terms of use for the thread. I just don't know where to go to for this information.
 

WB0VHB

Member
Joined
Oct 30, 2009
Messages
159
Location
Mt. Union, Iowa
I am not aware they are using encryption. I hear calls and the morning test page at 7:15 AM for Ft Madison and Keokuk.
What are you using for a scanner? I have heard there is a business in Ft Madison selling scanners that may not work properly with Lee County's simulcast system. Your mileage may vary, but the only guaranteed commercial scanners to work with a simulcast system like Lee County's are the Uniden SDS100 and SDS200.
 

tvengr

Well Known Member
Joined
Feb 10, 2019
Messages
9,175
Location
Baltimore County, MD
Would anyone be willing to look at my programming to make sure I have this programmed correctly in my SDS200?
Please export and attach your favorites list(s). You will need to right click on the exported file and Send to Compressed (zipped) folder to be able to attach it. Click on Attach files and Open the zipped folder.
 

JB805901

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Oct 29, 2022
Messages
2
Location
Montrose
I have A Whistler WS1040. I have been having A hard time figuring it out. I probably don't have it configured properly.
 

tvengr

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Joined
Feb 10, 2019
Messages
9,175
Location
Baltimore County, MD
I have A Whistler WS1040. I have been having A hard time figuring it out. I probably don't have it configured properly.
I'd be happy to take a look at your file. I have ARC500, Win500, and PSREdit500. As noted above, you will need to right click on the file and Send to Compressed (zipped) folder to be able to attach it. Click on Attach files and Open the zipped folder. You will not be able to receive fire and law enforcement for Lee County on the ISICS statewide system. The WS1040 cannot decode P25 Phase 2.
 
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