I was reading the WV SIRN meeting notes and notice that Loudoun Fire was at that meeting via Conference Call. I wonder if they have any Talk Groups on the SIRN system programmed into their radios or are they using the NIFOG ones?
Loudoun Fire
- Thread starter motorcoachdoug
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With how interop-friendly NOVA is, I'd imagine Loudon has some channels of the bordering jurisdictions programmed in their radios. Especially if they're participating in a meeting with them.
I know LCFR had some UHF APX radios in the past to communicate with Jefferson WV (my guess now is Loudoun units have tri-band radios in everything but only certain apparatus likely have the WV talkgroups.
freqhopping
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61K is patched to Jefferson County for interop.
freqhopping
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LCFR is now using APX NEXT radios. I hadn't really been paying attention to radio IDs since the phase II system went online and I documented RID to apparatus. The low 324#### range is no longer in use. I'm seeing 3245### up through 32498## now.
In some radio familiarization training it mentions two new tower sites that would be completed by the end of 1st qtr CY24. These are probably the new sites I'm seeing under the WPQZ390 license. One is next to the Station 27 Kirkpatrick Farms under WPQZ390. The other may be the site at Station 18. The license was originally only the Alford Rd and Elmwood Ct sites.
It also mentions the addition of some 700MHz frequencies. I found these under WRJC778 and WRTY935 for FM analog, trunked phase I and II and WQLJ257 for P25 conventional. I'm not receiving any control channels on the 700MHz freqs. No idea how these would be utilized.
In some radio familiarization training it mentions two new tower sites that would be completed by the end of 1st qtr CY24. These are probably the new sites I'm seeing under the WPQZ390 license. One is next to the Station 27 Kirkpatrick Farms under WPQZ390. The other may be the site at Station 18. The license was originally only the Alford Rd and Elmwood Ct sites.
It also mentions the addition of some 700MHz frequencies. I found these under WRJC778 and WRTY935 for FM analog, trunked phase I and II and WQLJ257 for P25 conventional. I'm not receiving any control channels on the 700MHz freqs. No idea how these would be utilized.
No, my undestanding its going to be a backup system.
Good to see you back in the hobby!
freqhopping
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I never left. I even got my ham license a few years back.
freqhopping
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Here's some more info. https://www.loudoun.gov/DocumentCenter/View/167950/Public-Safety-Radio-System-Expansion-PDF?bidId=
The 700MHz will be for a 2nd simulcast cell for the western part of the county.
The 700MHz will be for a 2nd simulcast cell for the western part of the county.
freqhopping
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So, for zones there are 9 for Loudoun.
6 DC, 3 Arlington, 4 Alexandria, 2 MWAA, 6 Fairfax, 4 Prince William, 6 Montgomery, 1 PG Co MD, 4 Frederick Co MD,
4 Fauquier, 2 Culpeper, 1 Rappahannock, 1 Clarke, 1 Warren, 1 Frederick Co VA, 1 Winchester, 4 Jefferson Co WV, 1 Berkeley Co WV, WV Region 2, 6 Washington Co MD, 10 700mhz mutual aid, 2 800mhz mutual aid, NOVA Health, NOAA Weather, NCR Maritime, NCR Marine and some other stuff.
No excuse for everyone not being able to communicate.
6 DC, 3 Arlington, 4 Alexandria, 2 MWAA, 6 Fairfax, 4 Prince William, 6 Montgomery, 1 PG Co MD, 4 Frederick Co MD,
4 Fauquier, 2 Culpeper, 1 Rappahannock, 1 Clarke, 1 Warren, 1 Frederick Co VA, 1 Winchester, 4 Jefferson Co WV, 1 Berkeley Co WV, WV Region 2, 6 Washington Co MD, 10 700mhz mutual aid, 2 800mhz mutual aid, NOVA Health, NOAA Weather, NCR Maritime, NCR Marine and some other stuff.
No excuse for everyone not being able to communicate.
Do these include LE channels?
What are the DC zones? Fairfax Co has 0, 0A, 0B, 0H, DC PD 1, RIZ
Also, curious what the Alexandria zones are? Fairfax Co only has 3: Alexandria 1, Alexandria 2, Alexandria PD
What's the difference between the NCR Maritime and NCR Marine channels?
freqhopping
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No LE on the trunked systems. A few conventional LE freqs and the national interop LE freqs.
0,0A,0B,0F,RIZ,Hospitals
Alex is 2,21,Backup and hospital
Marine is the interop Chs on the DC system
Maritime is DC marine + the marine channels of other local systems
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Here is all the fleet map for Loudoun Fire radios.
freqhopping
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Loudoun will be doing away with the C (Complex) [Dulles Town Center mall was such a location], D (Data Center), Echo (EHS), H (High Rise), and M (Medical facility) box suffixes.
K (Rural), L (Limited Access), P (Potomac River), and T (Trail) will remain.
The response algorithms for special response will be done at the address level. I know of an address within Leesburg in a non-K box that would currently require laying out about 2000ft of supply line if tankers weren't used. But I have a feeling hydrants will be appearing in a few years, a nearby plot of land was bought by the same company owning some adjacent property and some wetlands surveying has getting done lately.
There were only two E boxes that I knew of. The fuel farm at Leesburg Airport and the Loudoun Water facility along Loudoun Co Pkwy which has tanks of methanol.
Due to new hydrants and such some K boxes will no longer be so while some non-K boxes will become so.
These changes are already reflected in Loudoun GIS.
K (Rural), L (Limited Access), P (Potomac River), and T (Trail) will remain.
The response algorithms for special response will be done at the address level. I know of an address within Leesburg in a non-K box that would currently require laying out about 2000ft of supply line if tankers weren't used. But I have a feeling hydrants will be appearing in a few years, a nearby plot of land was bought by the same company owning some adjacent property and some wetlands surveying has getting done lately.
There were only two E boxes that I knew of. The fuel farm at Leesburg Airport and the Loudoun Water facility along Loudoun Co Pkwy which has tanks of methanol.
Due to new hydrants and such some K boxes will no longer be so while some non-K boxes will become so.
These changes are already reflected in Loudoun GIS.
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Surprised they're getting rid of data centers boxes. Any reason why they're implementing the changes?
freqhopping
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Changing things for automated dispatching algorithms. Not everything within a D/C/M box would require a response for such as designation. Some places within non-K boxes might actually require tankers, or at least it would make more sense to use them. Everything is being handled at an address level.
Consignment Solutions, the furniture store along Rt7 as you enter Leesburg is in 620-08. But the nearest hydrants have major roadways and such that would preclude using them. They would still be long lays and have to be done by hand. So the nearest practical hydrant is about 2000ft away along Potomac Station. That's two engine loads of supply line. So I think it would be best if a tanker (K622) was included in the initial dispatch to supply the first due E620 immediately. 750 gallons won't last long if it's raging. A sort of split lay would be an option with E620 beginning a forward lay halfway down the side road. The next due engine could complete the connection to the hydrant.
Whether there has been any prep-planning or algorithm created for this place I have no idea. Because of examples like above with unique circumstances, it makes sense to have things planned out for specific locations.
Consignment Solutions, the furniture store along Rt7 as you enter Leesburg is in 620-08. But the nearest hydrants have major roadways and such that would preclude using them. They would still be long lays and have to be done by hand. So the nearest practical hydrant is about 2000ft away along Potomac Station. That's two engine loads of supply line. So I think it would be best if a tanker (K622) was included in the initial dispatch to supply the first due E620 immediately. 750 gallons won't last long if it's raging. A sort of split lay would be an option with E620 beginning a forward lay halfway down the side road. The next due engine could complete the connection to the hydrant.
Whether there has been any prep-planning or algorithm created for this place I have no idea. Because of examples like above with unique circumstances, it makes sense to have things planned out for specific locations.
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