The minivan in front of us blew a tire and pulled over, a long way away from mobile signal. We couldn't find a spare tire. I have a Technician license; if I'd had my Baofeng BF-F9 V2 with me, is there a way I could have used it to help that family out?


If there's no mobile phone coverage, it's likely there are also no repeaters in range of the Baofeng. You could try the conventional simplex calling frequencies of 146.52 MHz (2m) and 446 MHz (70 cm) to see if someone nearby can help.

A blown tire isn't an emergency, so there's no particular protocol to follow. Simply, "This is [your call], I'm with a motorist in need of a spare tire at [describe location], can anyone assist?" would suffice.

Range with a handheld UHF/VHF radio isn't great, maybe on the order of 10 km in flat terrain. If being out of mobile phone coverage also means you're in the middle of nowhere with few people around, it's unlikely there's someone in range, that's a ham, that's monitoring the calling frequencies, and willing and able to help beyond what you could personally do for the stranded motorist. Practically speaking, offering a ride to the nearest town may be more helpful.

  • $\begingroup$ Terrain couldn't have been worse - we were on CA Highway 1, halfway between Gorda and Ragged Point (35.831461, -121.390937). Just done some searching and the nearest repeater was the other side of the mountains. In the end we drove to San Simeon where there was mobile coverage and phoned for help. $\endgroup$ – Paul Crowley Aug 14 '18 at 23:58
  • $\begingroup$ I live in a mountainous area with relatively low population density, and there are lots of places with excellent repeater coverage and absolutely no mobile phone service. Repeaters are cheap and cellular towers are expensive. $\endgroup$ – rclocher3 Aug 15 '18 at 13:37

Because the situation does not rise to the level of "imminent threat to life or property" you would not be permitted to "use any means neccessary" to carry out your communications. As a result, you would need to pass your traffic using simplex or an available repeater on ham radio frequency allocations if you are under US jurisdiction at the time. A simple "request for assistance for a stranded motorist" would be sufficient.

  • $\begingroup$ Seems a good time to call "Pan, pan", although I'm not sure all hams would know what it means. :) (It's the non-urgent version fo "Mayday".) $\endgroup$ – Jim MacKenzie VE5EV Aug 17 '18 at 3:38
  • $\begingroup$ @JimMacKenzieVE5EV After working in ARES for more than 30 years in the US, I have never heard a PAN PAN call. Although it might attract attention by curious operators... $\endgroup$ – Glenn W9IQ Aug 17 '18 at 9:47
  • $\begingroup$ Nonetheless, it's the correct call to make here. $\endgroup$ – Jim MacKenzie VE5EV Aug 17 '18 at 12:44

The Baofeng BF-F9 is an 8-watt UHF/VHF handytalky. With those frequencies you only have line of sight (a few miles) with the stock antenna, and maybe a little better (20-40 miles) if you were to string up a J-pole antenna up a tree. If you were to climb a mountain, you might be able to hit a more distant repeater.

In other words, it’s not going to do you a whole much but it’s better than nothing. An emergency j-pole is certainly something to consider having in your go bag.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.