New San Jose Fire Freq Found
- Thread starter Retired911Guy
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"And yes, going narrowband decreases signal penetration and typically requires more sites for adequate coverage."
The truth is all other factors staying the same going to NFM is like doubling your power on transmit and gives 3 db better s/n ratio on recieve which actually gives a little better range not worse !!
The truth is all other factors staying the same going to NFM is like doubling your power on transmit and gives 3 db better s/n ratio on recieve which actually gives a little better range not worse !!
As of Sept 4 the database shows
1. no UHF fire channels - (arent they used anymore?)
2. Tac 36 - 150.805 - BM - (is there really a base station on this freq?)
3. Tac 34 - 150.775 - BM - (is there really a base station on this freq?)
4. Tac 33 - 151.04 - BM - (is there really a base station on this freq?)
5. Fire Command 13 - 154.115 - BM - (is this actually a repeater channel?)
6. Fire Command 14 - 155.13 - BM - (is this actually a repeater channel?)
7. Is Fire Command 14 a FB2 channel, or a MO3 channel, or both?
Typically, 150.775 and 150.805 are used as input channels or "mobile only" channels across the USA.
The database doesnt match the FD website info which doesnt match the forum posts. The good news is that the primary channels are probably 100% correct. It is apparently just the oddball channels that are a bit ambiguous.
Bonus question - what does the dispatcher say on a typical building fire - "units responding to 123 Main St switch to Command X and Tac Y"?
1. no UHF fire channels - (arent they used anymore?)
2. Tac 36 - 150.805 - BM - (is there really a base station on this freq?)
3. Tac 34 - 150.775 - BM - (is there really a base station on this freq?)
4. Tac 33 - 151.04 - BM - (is there really a base station on this freq?)
5. Fire Command 13 - 154.115 - BM - (is this actually a repeater channel?)
6. Fire Command 14 - 155.13 - BM - (is this actually a repeater channel?)
7. Is Fire Command 14 a FB2 channel, or a MO3 channel, or both?
Typically, 150.775 and 150.805 are used as input channels or "mobile only" channels across the USA.
The database doesnt match the FD website info which doesnt match the forum posts. The good news is that the primary channels are probably 100% correct. It is apparently just the oddball channels that are a bit ambiguous.
Bonus question - what does the dispatcher say on a typical building fire - "units responding to 123 Main St switch to Command X and Tac Y"?
kmh603
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Zerg:
Tac's 31-36 are fireground channels and NOT base stations. All Tactical frequencies including Cal-Fire Tac frequencies are not monitored by Dispatchers and therefore are NOT base stations. San Jose Fire Command
11,12,13 are Repeater sites with at least 5 antennaes per channel that are simulcast. San Jose Fire Command 14 and 15 are Repeater channels used by Truck Companies on scene as an additional Command channel not monitored by Dispatch. San Jose Fire also has Hi-Rise 1 and 2 which are used during Hi-Rise incidents as a simplex UHF channel not monitored by Dispatch. These UHF channels are not used that often. Any other questions please let me know -KMH603
Tac's 31-36 are fireground channels and NOT base stations. All Tactical frequencies including Cal-Fire Tac frequencies are not monitored by Dispatchers and therefore are NOT base stations. San Jose Fire Command
11,12,13 are Repeater sites with at least 5 antennaes per channel that are simulcast. San Jose Fire Command 14 and 15 are Repeater channels used by Truck Companies on scene as an additional Command channel not monitored by Dispatch. San Jose Fire also has Hi-Rise 1 and 2 which are used during Hi-Rise incidents as a simplex UHF channel not monitored by Dispatch. These UHF channels are not used that often. Any other questions please let me know -KMH603
I went back thru all of the info and this is what I came up with.
https://sites.google.com/site/californiapublicsafety/home/san-jose/san-jose-fd-radio-system
https://sites.google.com/site/californiapublicsafety/home/san-jose/san-jose-fd-radio-system
kmh603
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Ok Here we go! Command 14 and 15 are 155.130 MHz but with different PL.
33.960 is Countywide Red-Net,
153.830 MHz is County Tac-40
154.280 MHz. is now named VFIRE 21
154.265 MHz. is now named VFIRE 22
154.295 MHz. is now nmaed VFIRE 23
All VFIRE channels are named Statewide (No more Colors due to confusion)
Hope this helps! -KMH603
33.960 is Countywide Red-Net,
153.830 MHz is County Tac-40
154.280 MHz. is now named VFIRE 21
154.265 MHz. is now named VFIRE 22
154.295 MHz. is now nmaed VFIRE 23
All VFIRE channels are named Statewide (No more Colors due to confusion)
Hope this helps! -KMH603
Looking at the FCC ULS today -
KMH603 - San Jose in Santa Clara County - 155.13 M - 155.025 R - 150.805 R - 153.83 M - 153.845 BM - 154.01 FB + M + FX1 - 154.265 M - 154.28 BM - 154.295 M - 154.31 M - 154.355 M - 154.43 BM - 2004 + 2011 - (no HTs listed)
WPNZ857 - San Jose SAR - 150.805 M + HT - 151.19 FB2 + FB2T + M + HT - 159.045 M + HT
East Bay Regional Parks - low band + 150.805 HT + MO3 - 153.8675 HT + MO3
Mid Peninsula Open Space District - 150.775 M - 60 X 50/50 - at Los Altos in Santa Clara County
150.775 - no license for San Jose
County of Santa Cruz - 150.775 - 100 mobiles X 50/50 - fire / EMS - 2009 + 2010 FCC
Bottom line - I find it hard to believe that San Jose is actually licensed for a high power repeater on 150.805 on a high mountain - unless San Jose SAR and East Bay Parks have given up the freq recently - in which case maybe a repeater on 150.805 would not cause too much interference to other stations - maybe
Bottom line - San Jose does not seem to be licensed for 150.775 - and both Santa Cruz County and Mid Space Peninsula are licensed on the freq
Bottom line - 153.845 has both mobiles and bases listed - but it is adjacent to 153.83
Bottom line - 154.43 is listed for bases and mobiles - but isnt Berkeley using 154.43?
Lets see what else I can dig up today.
KMH603 - San Jose in Santa Clara County - 155.13 M - 155.025 R - 150.805 R - 153.83 M - 153.845 BM - 154.01 FB + M + FX1 - 154.265 M - 154.28 BM - 154.295 M - 154.31 M - 154.355 M - 154.43 BM - 2004 + 2011 - (no HTs listed)
WPNZ857 - San Jose SAR - 150.805 M + HT - 151.19 FB2 + FB2T + M + HT - 159.045 M + HT
East Bay Regional Parks - low band + 150.805 HT + MO3 - 153.8675 HT + MO3
Mid Peninsula Open Space District - 150.775 M - 60 X 50/50 - at Los Altos in Santa Clara County
150.775 - no license for San Jose
County of Santa Cruz - 150.775 - 100 mobiles X 50/50 - fire / EMS - 2009 + 2010 FCC
Bottom line - I find it hard to believe that San Jose is actually licensed for a high power repeater on 150.805 on a high mountain - unless San Jose SAR and East Bay Parks have given up the freq recently - in which case maybe a repeater on 150.805 would not cause too much interference to other stations - maybe
Bottom line - San Jose does not seem to be licensed for 150.775 - and both Santa Cruz County and Mid Space Peninsula are licensed on the freq
Bottom line - 153.845 has both mobiles and bases listed - but it is adjacent to 153.83
Bottom line - 154.43 is listed for bases and mobiles - but isnt Berkeley using 154.43?
Lets see what else I can dig up today.
kmh603
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- Sep 8, 2010
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Ok if another agency is more than 60 miles from your antenna, then you are authorized to operate on that frequency. If you are less than 60 miles, then you would need a letter of agreement from that agency saying it is OK to share that frequency but with a different PL tone. San Jose Fire did just that and there was no interference found, hence San Jose shares the same frequencies as Berkeley Fire and other agencies.You would then send your letter of agreements and your frequency application and you are approved! On 155.9250 Mhz there is no one near for over 200 miles and that is why it is high level! -KMH603
I think I have most of this figured out now.
155.82 is the input to 154.115 R - Command 13
Command 14 might be 155.13 R with 150.775 input (but there are others users of 150.775 nearby)
Command 15 might be 155.13 R with 150.805 input (but there are other users of 150.805 nearby)
Command 14 and Command 15 might be just MO3 that are located on the Truck Companies - which I guess would be used at major fires in large buildings
150.805 R is probably not correct on the FCC license
155.82 is the input to 154.115 R - Command 13
Command 14 might be 155.13 R with 150.775 input (but there are others users of 150.775 nearby)
Command 15 might be 155.13 R with 150.805 input (but there are other users of 150.805 nearby)
Command 14 and Command 15 might be just MO3 that are located on the Truck Companies - which I guess would be used at major fires in large buildings
150.805 R is probably not correct on the FCC license
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