In June 2007, I hiked to the top of Telescope Peak in Death Valley, which was 11000 ft. I brought my Icom W32 with a Diamond RH77CA antenna and 5 watts on UHF. I was able to hit a repeater at 8000' on Frazier Mountain in Frazier Park, CA. It was about 138 miles away, as the crow flies. It was a linked repeater system, that I was able to converse with my father in the Bay Area.

So it is possible, though elevation is the ultimate antenna with VHF/UHF.

The Freq card is a good format. If you use Excel or Open Office, you can change the background to different colors for differentiating between bands.

still having issues?

ar-jedi

Hi , the links did not work for me?
RLTW

work fine for me

Looks good. Only thing is, did CHU move off of 7.335 Mhz yet? I remember reading somewhere that they were going to move since the there was a change to the Ham & SW allocation, and they were concern with interferance.


Yep.. they did change to 7.850 Mhz. Here's the link CHU


It looks good, I'll be printing one off for my use.

Colorado_Penguin

While I'm still a HF noob, I do get that part. Its just the description that I don't understand. Is 3.920 LSB an Air Locator channel as the descreption says, or just another Ham HF frequency?

Everything looks good and I hate to even want to put this out there but with the European AM stations moving out of the spectrum from 7.100 to 7.200,on March 29,2009,

would'nt a freq. of something between 7.175 and 7.200 be better than 7.213?

The 7.175 to 7.200 will be open to the General class with out the foreign AM broadcasters to add to the QRM.

Right in the middle is 7.185?

Just a thought

So - is anybody doing the 40M daily net? I have listened a few times and heard nothing.

I'm in Western Oregon.

just getting back engaged with this project...



regarding digital modes, in the latest document rev there are PSK31 frequencies. i'm not an Olivia user, but i do caution that most all digital modes for SHTF/EMCOMM use generally require ancillary equipment (e.g., a PC w/soundcard and/or external Rigblaster/Signalink) –– and that means additional operational complexity and additional power requirements.

i believe the mindset behind the SHTF/EMCOMM frequency sheet is "KISS", versus a definitive list of every possible mode of communications.

thoughts?

ar-jedi

Everything you said is true to a certain extent. However many digital modes are substantially more robust than SSB voice. This is especially important for QRP operations with small portable antennas. Running your uber-portable FT817 at 5W on a Buddipole or long piece of wire can be an exercise in frustration unless you are operating CW or digital. I suspect that digital modes are also beyond the capability of most average military SIGINT or COMINT activities as they are setup for military EW, not civilian. You can make Olivia contacts in conditions that are hopelessly beyond the capability of SSB voice. It's too bad the WSPR and JT65 are so obscure. If you only need to transfer short messages like "ETA 1700" "POSITION XYZ" etc. they can do that with ridiculously low power levels reliably and they have an additional advantage of being rather covert. At any rate it would seem to be a simple matter to identify certain frequencies and add them to the list as another tool in the toolbox. I suggest the following dial frequencies, all USB of course: 3583, 7070, 10140, 14070, 18070.

www.primetimeshortwave.com

English shortwave broadcasts by time/freq/targeted area. Great resource for SWLing.

OTOH, some of the digital modes require considerably less transmitter power than their "analog" counterparts - which may offset the extra power requirements of a laptop and radio interface. Also, the stealthiness of negative SNR modes could be an advantage in some circumstances.