Caltrans 800 MHz Frequencies in San Luis Obispo County, CA

[N6JPA]

I have programmed in the 800 MHz frequencies that are listed for San Luis Obispo County CALTRANS at radio reference.com. I have heard no activity and no CW ID markers on the frequencies. Does anyone know what frequencies that Cal Tran uses in San Luis Obispo County?

Department of Transportation (Caltrans) (California) Scanner Frequencies and Radio Frequency Reference

Scanner Frequencies and Radio Frequency Reference for Department of Transportation (Caltrans) (California)

www.radioreference.com

 

[ko6jw_2]

Did you try the low band frequencies? I don't listen to CALTRANS very much, but when I last tried they hadn't completely switched over to the 800MHz channels. The trucks I see still have low band whips.

 

[es93546]

Did you try the low band frequencies? I don't listen to CALTRANS very much, but when I last tried they hadn't completely switched over to the 800MHz channels. The trucks I see still have low band whips.

The low band whip on the vehicles supervisors drive around is to contact CHP directly. This is usually simplex on the base station frequency. Not very many trucks have the CHP radio access. In the Caltrans district I live in only the station supervisor and an assistant have CHP radios. The big trucks, graders, loaders and blowers do not have these whips.

Starting out slow here, I'm recovering from a nasty spell.

 

[KK6ZTE]

47.18 and 47.08 are licensed for the SLO area. There's occasional traffic on 47.18. Never heard anything on the 800 or other low band channels.

 

[iscanvnc2]

CALTRANS 800 MHz traffic in western Ventura County is virtually non-existent & has been such for quite some time. I have programmed two scanners with four CALTRANS repeaters within my reception range here in Ventura. One, South Mountain. is LOS 8 miles. During foul weather I can count on hearing units on the Sisar repeater, north of Ojai, maintaining Hwy 33 through Los Padres NF, but that's about it.

CALTRANS units must be using some other means for their means of communications. There are times when I know from the CHP Traffic Incident Information Page that CALTRANS is operating in the area, but silence.

I suggest N6JPA hang on until the heavy rains this winter (I know, I'm delusional) and see what happens.

 

[iscanvnc2]

This afternoon there was a small brush fire (0.15 acre) in Los Padres NF along side Hwy 33 requiring closure of 33. CALTRANS units were active on their Sisar repeater, 859.1625.

 

[techman210]

In my area, they are most active when the weather is bad.

When coordinating activities that don’t need to be heard by the dispatcher, they often use the 850 MHz direct frequencies. Just keep the kids away from the radio when monitoring those! 😃

 

[iscanvnc2]

So N6JPA, I know San Luis Obispo County got hit hard by the “atmospheric river” the last couple of days.
Any luck with CALTRANS?

 

[N6JPA]

There was a test on one of their 800 MHz frequencies but I haven't heard anything else on them.

 

[kg6nlw]

I know it's not SLO related, but Lake County and Sonoma County CALTRANS channels were pretty busy yesterday in particular compared to usual. Although a lot of hits were off the (V_) channels at times...

Regards,

-Frank C.

 

[iscanvnc2]

franks_ham’s reference to the CALTRANS (V...) channel list got me to take a closer look at it.
Channels K, L, & M have listed frequencies between 866 & 870 MHz. A number of years ago
the great re-banding caper lowered most public service freqs in this range by 15.0000 MHz. The call sign for these 3 freqs is WPFN689. FCC records verify that the freqs are in fact 15 MHz lower.
Therefore the following changes should be made in the RRDB for CALTRANS:
K 866.0375 > 851.0375
L 867.0375 > 852.0375
M 868.0375 > 853.0375

If I’m wrong, I apologize.

 

[iscanvnc2]

I submitted the above changes & the were instituted today.

 

[code3cowboy]

The Mt. Lowe repeater used to be pretty active during storms.

 

[KK6ZTE]

If you drive out Highway 166, you'll see the new roadside repeaters going in. They've got four or five in so far, and a few more poles with no equipment yet mounted.

 

[MtnBiker2005]

Some random stuff I got this month…


(PW-RSAH1006210634) - CALIFORNIA STATE-CALTRANS - NEW SYSTEM -
CONCURRENCE ONLY-AASHTO - 453.475 MHz FXO 11K25F3E emission 8
watts 10.0 dBd gain dir. ant. @ 239 degrees-True 10.7 m high @
685.2 m AMSL (Polonio Pass DOT, Cholame, SLO County) CTCSS ???
ERP 40 watts HAAT 192.3 m.
Also 453.950 MHz FXO, same as above, except dir. ant. @ 40
degrees-True 7.6 m high @ 503.5 m AMSL (Creston DOT RS, SR41,
Paso Robles) HAAT 117.2 m.
Also 453.425 MHz FXO, same as above, except dir. ant. @ 93
degrees-True 10.7 m high @ 301.1 m AMSL (Shandon DOT RDRPTR#1,
SR41) HAAT -61.9 m (below).
Also 458.475/.950/.425 MHz FXO, same as above, except dir. ant. @
59/230/273 degrees-True @ 314.3 m AMSL (Shandon DOT MS, Shandon)
HAAT -102.8 m (below).

 

[KK6ZTE]

They're licensing for the site they are in the beginning stages of building at Polonio Pass, near the "Y" at Hwy 41/46