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Emergency Communications • Built two roll up J pole antennas yesterday

March 12, 2017 orangetom1999 0

Was intending to re adjust my long wire..Loop antenna for HF bands yesterday but got sidetracked and wound up fabricating two roll up J pole antennas to replace the ones I had given away to new hams who had no external antennas and were using Walkie talkies in their apartments’/homes.

It worked out to be a starter antenna to help them get out and receive better.

I made my antennas out of 300 ohm twin lead…that olde type flat line television antenna wire and also sometimes you would see it as FM stereo wire.

It is fed with RG 8 mini coaxial antenna wire.

The first one I made as strictly a 2 meter J pole tuned in the 144-148 MHZ band and it tuned up well.

I have been meaning to try a twin lead J pole for a dual band purpose ..2 meter and 70 CM…or what also called the 440 MHZ band.

I followed the instructions on U Tube and it worked out well. It is only a few different but critical differences verses the 2 meter only antenna.

Both antennas were able to get into local repeaters..from a height of only 8 feet above the ground.

Here is a photo of the 2 meter only antenna. Going to have a go later on today in adjusting my long wire loop for the HF bands.

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And here is a photo of the same roll up antenna inserted into a PVC tube for more permanent outdoor set up.

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Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Sun Mar 12, 2017 11:39 am


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Emergency Communications • Re: Hooking up with my friend via HF radio..

March 6, 2017 orangetom1999 0
Mountain wrote:
My old buddy I grew up with in Nor-Cal have had this plan for awhile ourselves. He was waiting on me to get my General, which I just did. Now I need a radio.
73
KK6MOE

Yeah..Mountain,

Years ago when I had earned my General and Advanced Ticket at the testing session …I too did not even have an HF radio. I only had a two meter walkie talkie and a 10/11 meter rig. It took me some 9 more months to scrape up the funds to get a used Yaesu FT 890. I still have the rig but am running a Icom 706 currently.

Looked you up in the book…you are up there in them thar Hills.

I work in a shipyard and my friend to whom I am speaking retired from there. All the big nuclear carriers are born here in this shipyard. Submarines too.

Getting ready now and headed to the radio roomto try to contact my friend again on 160 meters. Perhaps if you have a receiver…shortwave…with SSB..capabilities you can pick us up. We will be operating somewhere in the 1900 to 2.000 MHZ range…wherever we can find a quiet spot…LSB Mode.

Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Sun Mar 05, 2017 8:45 pm


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Emergency Communications • Re: Hooking up with my friend via HF radio..

March 6, 2017 orangetom1999 0
Mountain wrote:
My old buddy I grew up with in Nor-Cal have had this plan for awhile ourselves. He was waiting on me to get my General, which I just did. Now I need a radio.
73
KK6MOE

Yeah..Mountain,

Years ago when I had earned my General and Advanced Ticket at the testing session …I too did not even have an HF radio. I only had a two meter walkie talkie and a 10/11 meter rig. It took me some 9 more months to scrape up the funds to get a used Yaesu FT 890. I still have the rig but am running a Icom 706 currently.

Looked you up in the book…you are up there in them thar Hills.

I work in a shipyard and my friend to whom I am speaking retired from there. All the big nuclear carriers are born here in this shipyard. Submarines too.

Getting ready now and headed to the radio roomto try to contact my friend again on 160 meters. Perhaps if you have a receiver…shortwave…with SSB..capabilities you can pick us up. We will be operating somewhere in the 1900 to 2.000 MHZ range…wherever we can find a quiet spot…LSB Mode.

Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Sun Mar 05, 2017 8:45 pm


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Emergency Communications • Re: Hooking up with my friend via HF radio..

March 5, 2017 orangetom1999 0

Thanks Mountain.

Follow up on my OP. Last night we hooked up again on 1.920 MHZ…LSB….or on 160 meters.

What was different this time is that we decided to check out how low we could take the output power and still maintain communication.

We started at 100 watts, the maximum the rig puts out. We wound up and decided on 25 to 30 watts. Any lower and we realized we would occasionally fade back into the noise level or weeds as it is sometimes referred.

I did not think we would be able to keep comms at that low a power setting but that was a very interesting “lessons learned” last night.

Should we switch to Morse Code when the noise level is much much higher….we now have a sort of reference line off which to follow.

160 meters, for now, has turned out to be quite a surprise.

Now we will be checking out other bands….75 and 60 meters and running the same pattern of power tests.

I have ordered some fuses for my Ameritron 811H amplifier. Plans are to try to keep it around 200 Watts if I can get it once again Q5. I’ve not run it in some years now. I suspect it has a serious case of “Arthritis” from being so long stagnant/dormant.

I discovered that for most of what I want to do 200 Watts is sufficient to get me above the noise level…and that is all I want. And it is plenty for most of the bands using CW or Morse Code.

Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Sun Mar 05, 2017 2:27 pm


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Emergency Communications • Hooking up with my friend via HF radio..

February 15, 2017 orangetom1999 0

Last December my friend of many many years retired and moved to Tennessee way out in the mountains…and far up at the end of a country lane.

He has been moving his household trip by trip as he is no longer on the clock as are so many of us.

We are both Hams and having started so many years ago on the CB bands and once we got our tickets we continued to carry on via radio rather than phones. We are both not phonaholics so to speak.

With all the other priorities of moving and setting up a household…setting up his radio station has not been a priority.

But the last two days he managed to shoot his antenna up high in the trees…a 160 meter dipole…via a home made air cannon.

Last time and for the first time since he moved..we managed to hook up on the 160 meter band on lower sideband.

He is out near Johnson City, Tennessee and we figure the distance is some 400 miles.

Copy was good with some static crashes in there.

His signal was 9 to 10 over and audio quality was good. We were running barefoot with only the 100 watts in the radio.

It was good to know that our systems were so capable…and I am making plans to get my Ameritron 811 H back on line. I’d like to be able to bring my signal up to some 200 watts when the static is thick and get just above the static level.

Also we will be exploring 75 and 60 meters.

Orangetom

Statistics: Posted by orangetom1999 — Wed Feb 15, 2017 9:22 am


:offtopic:

Emergency Communications • Hooking up with my friend via HF radio..

February 15, 2017 orangetom1999 0

Last December my friend of many many years retired and moved to Tennessee way out in the mountains…and far up at the end of a country lane.

He has been moving his household trip by trip as he is no longer on the clock as are so many of us.

We are both Hams and having started so many years ago on the CB bands and once we got our tickets we continued to carry on via radio rather than phones. We are both not phonaholics so to speak.

With all the other complexities of moving and setting up a household…setting up his radio station has not been a priority.

But the last two days he managed to shoot his antenna up high in the trees…a 160 meter dipole…via a home made air cannon.

Last night and for the first time since he moved..we managed to hook up on the 160 meter band on lower sideband.

He is out near Johnson City, Tennessee and we figure the distance is some 400 miles.

Copy was good with some static crashes in there.

His signal was 9 to 10 over and audio quality was good. We were running barefoot with only the 100 watts in the radio.

It was good to know that our systems were so capable…and I am making plans to get my Ameritron 811 H back on line. I’d like to be able to bring my signal up to some 200 watts when the static is thick and get just above the static level.

Also we will be exploring 75 and 60 meters.

He is trying to brush up on his morse code skills to have this option to put into place should conditions get very bad on the airways.

Orangetom

Statistics: Posted by orangetom1999 — Wed Feb 15, 2017 9:22 am


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Emergency Communications • Re: Ham Radio Stealth Dipoles for preppers by preppers

February 7, 2017 orangetom1999 0

Some years ago…I rented a cabin up in the mountains. I have found this a very nice place to get away from what I often term as “The fast food high speed lane of life.”

What I did was bring my old back up HF rig..a Yaesu FT 890 and tuner..also keyer.. power supply and a G5RV antenna for which I’ve had in storage for some years before.

The antenna was hoisted up into the trees via a fishing pole and this used to thread some 1/8th nylon line from Lowes. Coaxially fed…I ran the rig via an extension cord…out to the deck out back.

I made several contacts to people I knew..even a fellow in upstate New York who retired from down here in Virginia.

Late at night I threaded the coaxial cable into the kitchen and operated off the kitchen table with headphones while everyone else slept. I am a night owl.

Made several other contacts using both phone and keyer.

I enjoyed that ability to operate far from my base station or out in my truck…by setting up another station in that manner.

The G5RV is basically a dipole…and a good antenna for the monies. I keep a couple here for backups and operating out away from home in the manner described.

Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Tue Feb 07, 2017 10:50 am


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Emergency Communications • Re: Ham Radio Stealth Dipoles for preppers by preppers

February 7, 2017 timortiz 0

I would agree. There are wires all over the place these days, so folks might not see it even then. Whats another wire in the air? I like the half-wave dipole on HF for a number of reasons. I build these specifically for stealth, HOA and portable applications. I do this mainly for fun, but I would be happy to send you one if you would like to try it.

Statistics: Posted by timortiz — Mon Feb 06, 2017 10:37 pm


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Emergency Communications • Re: Comms question

February 5, 2017 Scoutmaster 0

I was not sure what direction you all where going, I have not seen anything other than the last post covering talking to anyone more than 5 or 10 may be 20 miles away at best. If some one is traveling to or from a BOL it could be a lot further than that. As the last post said HF specifically NVIS, gives a propagation path that provides usable signals in the range between VHF and conventional HF That covers 100s to 1000S OF MILES NVIS distances—usually 30–400 miles Great for coms with fellow prepers in transit. If cells are down or shut off that would be about the only way to have coms with them. The nice thing is elevation not antenna height but height above sea level has very little effect on NVIS. and is very easy to be set with with just a thin wire antenna.

It would also be nice to have coms to be able to know what was going on more than a few miles away from our locations very few of the UHF and VHF will cover any of that radio spectrum.

Statistics: Posted by Scoutmaster — Sun Feb 05, 2017 3:03 pm


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Emergency Communications • Re: Ham Radio Stealth Dipoles for preppers by preppers

February 5, 2017 orangetom1999 0

I am running a dual band J pole aluminum rod antenna about 55 feet hoisted into a tree via a fishing pole and some 1/8 nylon line. The Nylon line has been blackened out with black magic marker as has the J pole antenna. The J pole was blackened with permanent black magic marker…before final assembly.

Any effect on the radiation pattern/transmit/receive is not noticeable.

With the line and antenna blackened out you would be hard pressed to notice it up in the trees…in particular when the tree is in full foliage.

I also have up a loop antenna in my yard for the HF bands. It is from a 500 foot roll of 12 gauge black insulated roll of wire from Lowes. The black can hardly be seen unless you know for what to look.

It is basically a large triangular loop and fed with ladder line.

Dipoles…properly put up are naturally difficult to see unless you know at what you are observing and you need to be relatively up close to so notice.

Most people would not even know what a dipole is.

I also don’t believe they are that noticeable by drone camera unless the drone is very very close to the antenna.

Thanks,
Orangetom

Statistics: Posted by orangetom1999 — Sun Feb 05, 2017 10:22 am


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Emergency Communications • Re: Comms question

January 30, 2017 timortiz 0

elevation is critical when it comes to VHF/UHF whether working repeaters or simplex. not so much HF. if someone wants to reliably work distances greater than 50-ish miles, then HF (160 meters to 10 meters) is a must. the most critical variables here are propogation conditions and having a decent antenna at least a 1/4 wave above the ground. for the most active bands like 20 and 40 meters this usually means around 30 feet.

Statistics: Posted by timortiz — Mon Jan 30, 2017 1:25 am


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Emergency Communications • Ham Radio Stealth Dipoles for preppers by preppers

January 29, 2017 timortiz 0

There are some really cool videos on YouTube these days about low cost-great value stealth dipoles. Check them out here:

https://www.youtube.com/watch?v=7rujoKVOhK8

and here: https://www.youtube.com/watch?v=oiChDvSzGQM

and here: https://www.youtube.com/watch?v=r9fylPW0xgQ

and here: https://www.youtube.com/watch?v=68NjWxa8m8s

The antennas are sold on ebay here: http://stores.ebay.com/n9sab

Other APN members will receive a 10% instant rebate since I have some pull with the manufacturer. Just send me a note.

Tim

Statistics: Posted by timortiz — Sun Jan 29, 2017 12:25 am