nokones

Why wouldn't it be legal for me to come up on a public safety channel to report an emergency whereas property or life is in imminent peril during those disasters cited in Part 90.407? What part of 90.407 would I be violating? Now for the guy that jumped over the fence to intentionally set off the alarm to summon help/aid, was there any exemptions in statute that would exempt him from being prosecuted for his/her act? Although, I agree that not prosecuting him for trespassing was in the interest of justice. In his case, there was no emergency with life or property in imminent peril. After the vehicle came to rest from losing control of the vehicle it was only a property damage collision event with the primary collision factor being driving at an unsafe speed for conditions that was not reasonable and prudent, and the non-injury collision event does not constitute an emergency nor does being in a blizzard at that time.

True. If I was so inclined to transmit on a public safety channel under said conditions, I would use a mutual-aid or interoperability channel, especially if the respective agency's radio system is a 700/800 Meg trunk system. I don't do 700/800 Megs and trunking.

It appears to me that during such disaster, if I need to report life or property in imminent peril, I can legally program a public safety channel in my personal radio and report such emergency as long that I did not interrupt any ongoing transmission. Once that transmission and report is done, I would not have any legal reason to key up on that public safety channel again unless there is a need to report another incident whereas a life and property are in imminent peril.

I've design several Comm Trailers and Command Vans. You have to design the vehicle around the equipment and you need to know how to do the weight and balance correctly kinda what needs to be done with aircraft. Don't forget your trailer electrical reqs, conduits, cabling, Heat/Cooling, racks, and anchoring to the vehicle. Also what chassis and body panels material, and door security such as latches and locks. You also need to have some towing experience and know what trailer hitch and receiver (tag or 5th wheel/gooseneck) to use, and the tow vehicle can not be undersized. Don't forget your drivers license reqs for towing in your State.

My Radio Club also has a comm trailer with solar, two repeaters GMRS and a Part 90 Business Radio UHF Freq pair for DMR operation. In the very near future we will have a high elevation Part 90 Business Radio UHF DMR repeater supplementing our existing GMRS station, and in the distant future the DMR system will have two additional sites, one in the East Valley and one north of the Valley. The first DMR station site is located in the West Valley and covers a great deal of the Valley.

During catastrophic events, emergency power is not the only critical issue. The biggest issue initially will be channel congestion and discipline that will be hard to control. Everybody will be trying to communicate at the sametime. Simplex operation with several monitoring stations in strategic locations relaying the information would be the best bet in those situations. One of the Radio Club's I am in have CENet exercises throughout the year operating simplex channels with several monitoring stations relaying emergency traffic to the EOC.

Did you hear this traffic on one of the Interstitial channels or the main 462 channels? Just curious. S.R. 58 does have adequate coverage from a few repeaters from Barstow over the Tehachapies through Bakersfield to I.S. 5.

You should contact the Stan Co. OES, not the State OES. There is already a CENet type operation in existence in Stanislaus County. I'm pretty sure that will include the Turlock area. Also, if you get involved with a community emergency network operation, you will also learn that a reliance on repeaters, will not be an available and usuable asset in an emergency scenario/operation.

My CB license was KLC6737.

The only listed GMRS repeater that would look up the westside of the Altamont is across the Livermore Valley on top of Sunol Ridge which will look up the pass to about Flynn Road. As you drop down from the top, I doubt that Sunol would do anything for you once you drive east of Flynn Rd. There are a couple of low elevation GMRS repeaters in the Manteca/Lathrop area that may look up the Pass, but don't count on any coverage once you go over the top at Flynn Rd down into the Livermore Valley from those sites. There is no known repeater that cover the entire Altamont Pass.

Receiving with a mismatched antenna will not cause any harmful affects to the radio. Transmitting with a mismatched antenna is another story. The MXTA26 antenna is tuned for GMRS freqs only. You need to see what the VSWR is insofar as to the reflected power being sent back to the radio on 70 cm. 70 cm is a big spread from the GMRS channels and the difference may piss-off your radio.

For one signal to capture the other signal, there needs to be 6 dB of signal strength over the other signal. That is how far you need to be.

That radio does exist today and will cover all of those bands. Unfortunately, it is not a $16 cheap POS Pandaland radio and you won't find these radios in a Walmart type store.

There are lots of examples where this occurs and it wotks out fine if you stsy out of the overlap area. All you need is 6dB of capture. The Queen has a repeater on the same freq and tone as an adjacent repeater close to him and I bet you a dollar and a donut that those two repeaters don't interfere with each other and can work with simultaneous use. The benefit with that setup, you do not need to switch cha nel when traveling from one area to the next.

You might want to read the H3 with Chirp and try to write the file to the H9. If that doesn't work, read the H3 radio with Chirp, hi-light and copy the data, then bring up the H9 codeplug file in chirp, and paste the data, then write to the H9 radio.

Was a rule and that rule went away in 1999.

Where does it say that you can't do that? Intentional interference would be the issue, not the second repeater. There are numerous second repeaters all over in GMRS radioland. You can even use the same tones as the other repeaters. Just because you have propagation creep into another repeater foot print is not intentional interference and is not regulated.

In the Farm scenario, the farmer in the field would have a portable that would communicate to the Farm Base. There would be no need to install a mobile on a tractor or harvester.

It was also and still used in the Public Safety world. I believe the LA Sheriff Department still doesn't repeat the uplink traffic. They do broadcast a series of beeps to signify that when there is mobile traffic and the channel is busy. Also, the California Highway Patrol did not repeat their semi-duplex channels for many decades.

It would depend on how the FCC interprets the rule regarding the one-way communication on a channel. One-way Communication is prohibited per 95.1731 and 95.1733 and one-way communication is defined in 95.303. To get around the rule of ony using the main 467 Meg freq only for communication to a repeater station, the Interstitial freqs do not have that restriction because repeaters are not allowed on the Interstitial freqs. My thoughts are that any communication that is a two-way passing of information on two separate Interstitial freqs just like on a repeater pair of using 462 and 467 main freqs may be a good argument in using a pair of 462 and 467 Meg Interstitial freqs in a half/semi-duplex configuration could be allowed.

Oh yah, and always respect the Queen and don't become a "Sad Ham". There are a lot of generous forum members who are more than helpful and there are some that you need to be careful with. By reading the posts you will be able tell the difference between the helpful members and the one that waste a lot of time posting not-so-helpfull information. Weigh the info you read. Decide what will help you and remember what will not help. But keep in mind not all information that won't work today or for the specific moment, is not all bad could very well be useful information in the future.

Jeep Beach is only 4 months away.

Just make sure that the channel(s) you intend to transmit on is/are programmed correctly not only with the frequencies, but with the appropriate tones/codes, if required.

Back in my day in designing Avionics for Public Safety aircraft like the Hughes 500D, Bell Rangers and Long Rangers, A-Stars, Cessna 180 and 185s, Wolfsburg radios for the FM stuff and King Silver Crown for the AM stuff and and a bunch of custom audio mixer panels and other required flight equipment was the hot ticket and the aircraft was very heavy laden. The weight and balance was a bit of a challenge the flight crews had to manage the weight of the fuel loads. In those days, the radio interoperability on Trunk 800 Meg systems had to be with appropriate portable radios from the respective agencies and the audio was interfaced through the audio mixtures because Wulfsburg did not have trunk capable RT units.

And if any rule/regulation needs to be enforced, you can be sure that the Communications Act and The United States Code will come into play and be cited in addition to CFR Title 47 and its Chapters and Parts.