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AI6OZ

Joined: Fri, Nov 7th 2003, 10:54 Roles: N/A Moderates: N/A

Latest Topics

Topic Created Posts Views Last Activity
Solar Terrestrial Data for HF Propagation Mar 20th, 15:35 2 355 on 20/3/18
ARRL Yearlong International Grid Chase Feb 13th, 13:17 1 404 on 13/2/18
California no hands law Jan 5th 2017, 23:30 2 1,148 on 8/1/17
Solar Power Bucket Oct 3rd 2016, 15:38 4 687 on 7/10/16
G5RV & Very High SWR Jan 2nd 2016, 00:26 2 941 on 2/1/16
G5RV Antenna Installation Dec 24th 2015, 16:21 3 1,106 on 22/6/16
Follow-Up to Wilderness Protocol Sep 14th 2014, 13:02 2 1,782 on 2/11/14
Wilderness Protocol Sep 1st 2014, 16:08 1 1,398 on 1/9/14
Cross Band Radio Jan 10th 2014, 23:52 2 1,457 on 15/1/14
Cross Banding Radio Dec 20th 2013, 00:03 1 2,804 on 20/12/13

Latest Posts

Topic Author Posted On
Solar Terrestrial Data for HF Propagation AI6OZ on 20/3/18
On the solar-terrestrial data for HF propagation (http://www.hfpropagation.com/ ) reference by a good number of Ham Radio web site there is the Ef value. Unlike the other solar-terrestrial data posted I have not found anything that clearly defines what is a good or bad Ef value. Last Monday Ef was 1190 later that afternoon Ef it climbed to 15,100, and today Ef is 15,500 at 20:25 utc.

I’ve reviewed the attached NOAA web site along with a number of other web sites about Ef and I have not seen anything about these numbers. The only thing that come closes was NOAA Space Weather Alerts (http://legacy-www.swpc.noaa.gov/alerts/description.html) Electron Flux Alert “…when electron fluxes have exceeded the event threshold (1000 pfu)…”

So, should I assume anything over 1000pfu is bad (mean Ef 1190 is bad) and if yes what’s say about Ef 15,500 I’ve seen twice this week?

Already know Ef is short for Electron Fluxes, what I don’t know is this Ef values I see posted on the solar-terrestrial data is good or bad? And what is the worst case Ef value?

Any assistance would be appreciated
ARRL Yearlong International Grid Chase AI6OZ on 13/2/18
For those working the ARRL yearlong international grid chase, starting Thursday (02/15/2018) I plan on being at grid DM24 (southeast Mojave Desert National Preserve) for most of the day. Depending upon Los Angeles traffic and finding a spot to operate from I hope to be on the air by 9:30am (1730 utc), 20-meter band, frequency TBD. By 4:30pm (0000 utc) or so I’ll have to close down operation so I can move to Hole-in-the-Wall campground.

Friday (02/16/2018) I plan to operate from Hole-in-the-Wall campground, southeast Mojave Desert National Preserve, grid DM25, 20-meters during the day and 40-meters later in the afternoon, frequency TBD. By early evening I’ll have to close down operations so I can move to Owl Canyon Campground, DM14, early Saturday morning.

Saturday (02/17/2018) hopefully there will be an open camp site at Owl Canyon, DM14, large enough for me to setup. As long as Starbucks in Barstow, Ca isn’t too busy I hope to be on the air by 09:30am (1730 utc), 20-meters during the day and 40-meters later in the afternoon, frequency TBD. By early evening or so I’ll have to close down operations so I can stage my equipment for my trip home very early Sunday morning. Thanks to traffic coming out of Las Vegas Sunday morning traffic thru Bartow and Victorville can be nauseating.

Thursday and Friday’s nearest town/out post is Fenner along I-40 and the weather is expected to range from 69-71 degrees during the day to 52 degrees at night; Saturday is near Barstow and weather is expected to range from 70-45 degrees with no rain at either location. It’s also President’s Day weekend so I might have some company.

Before June 2018 when Mojave Desert starts to warm-up a bit, I plan to visit Joshua Tree National Park (DM13, DM14 and DM23), and Death Valley National Park (DM16). Because of the travel distance and time to find a setup location most of these will be a one-day trip.

All my radio trips are strictly QRP, SSB, using FT-817, Elecraft T1 Automatic Antenna Tuner, HEARC End Fed 6-40 meter multiband HF Antenna, MFJ-1910 33 Ft. Telescoping Fiberglass Mast. All powered by Bioenno Power 120 Power Pack and 28 watt solar panel, each time out I’ve never worried about power.

Please pass along any suggestions or request for other locations, and see my QRZ page about QSL cards
California no hands law AI6OZ on 5/1/17
Is there any action being taken by ARRL about the new California no hands law involving cell phones and ham radios? The rumor is the new California no hand law did not have a wavier excluding mobile ham radios from the law. The last couple of days I heard several folks asking and no one really knew the answer.
Solar Power Bucket AI6OZ on 7/10/16
W1VT

As you suggested I’ve been looking at N1UHF’s portable batteries/solar web site. It looks like his Uni-Solar MBC-131 5.5 Watt 12v portable solar panel may be the answer to my solar questions.

What I don’t see and he mentioned at least once was the solar charge controller, what solar charge controller would work best with the Uni-Solar MBC-131 5.5 Watt 12v portable solar panel?

And right or wrong I’m assuming I can use the Uni-Solar MBC-131 5.5 Watt 12v portable solar panel to charge my genesis NP7-12 12v 7.0ah batteries. Plus, with a solar charge controller I would connect the solar panel directly to my FT-817.

There is heaps and oodles of information about solar panels and I seem to have reached my information overload thresholds. So if I have this all wrong I would appreciate you saying so.

Thanks & Cheers Beers
Solar Power Bucket AI6OZ on 4/10/16
Thanks I'll look into it.
Cheers Beers

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