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Old 07-18-2016, 02:54 PM   #11
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Quote:
Originally Posted by alanmalk View Post
Just like a cell phone that can't be relied on to work in an emergency, a ham can not count on reaching a specific station when needed. However, with experience and correct equipment a ham *can* count on reaching *someone*, anytime, from anywhere (license limitations are suspended for emergencies).

But as a practical matter, those new "Spot" transmitters are far more useful in emergencies than a ham station. Personally, I would never bring my ham gear camping "for emergencies"; only for fun in my spare time. Its camping, after all.
True. I was thinking of the ham gear as useful for the camper to help as a volunteer with search and rescue operations for other people, not as emergency communications for the camper.
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Old 07-18-2016, 07:02 PM   #12
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I have a VHF radio in the truck that has APRS (Automatic Packet Reporting System)built-in. So back in May when I drove from Ottawa to Chilliwack to retrieve my new Escape 19, the APRS allowed friends and family to track me on Google Maps APRS web site throughout most of my 40 day adventure to and from Chilliwack.

By the time field day came around on June 25th, I found myself at Pukaskwa National Park near Marathon Ontario on Superiors north shore. I put up a 43 foot wire antenna and set up my Elecraft KX3 radio on the dinette. Im using a 12 meter fibre glass pole so part of the antenna had to also be supported on a near by tree (I hope I didn't break any park rules).
Thanks for your comments. I hadn't thought about APRS but I just might try it on the next trip. I have a HT with APRS and a magmount antenna. I suspect it will be hard to get tracked in the National Parks, though.

I haven't ventured into HF yet. I am just getting going in 2m/440, but HF is in my future. I'll look for an antenna that can be put up without depending on trees or grounding wires, maybe something like a Buddipole.
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Old 07-18-2016, 10:29 PM   #13
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Quote:
Originally Posted by redtaco99 View Post
I have a VHF radio in the truck that has APRS (Automatic Packet Reporting System)built-in. So back in May when I drove from Ottawa to Chilliwack to retrieve my new Escape 19, the APRS allowed friends and family to track me on Google Maps APRS web site throughout most of my 40 day adventure to and from Chilliwack.
I also have an HT with APRS built-in. When I lived in Maryland I would mount the radio on my bicycle and leave it on while I rode the bike trail around BWI airport. My friends would see the APRS tracking website then ask me how a bicycle could move so slowly without tipping over. Grrr....
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Old 07-19-2016, 07:12 AM   #14
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bdornbush, since you are licensed you can use aprsdroid android app on your phone. It will get you on the APRS map if your 5 watt HT can't in national parks, that is, if you can get a cell phone signal. No radio is required....but it's not as fun as your HT. I'm sure you've heard of quartzfest amateur radio gathering in quartzsite already. Take care.
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Old 07-22-2016, 09:31 PM   #15
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Will I cook my King Jack antenna if it's next to a ham antenna?

Okay, Escape hams-- I have a question for you. I recently bought a King Jack TV antenna for my Escape, but by the time it arrived today I had decided to use it as a home TV antenna instead, and buy a second one for the trailer if I like it. My plan is to mount the King Jack on an antenna mast that is topped off by a ham radio J-pole antenna for use with two-meters / 440 MHz.

It just crossed my mind that this might not be a good idea. My ham transceiver transmits at 100W of power. Am I going to cook the King Jack antenna and/or my TV when I transmit? The King Jack is an amplified antenna, so it has circuitry in it. Is 100 watts enough to cause problems? What do you think?

I intend to use a similar setup on my trailer's antenna mast, so this is relevant to the forum.
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Old 07-22-2016, 09:50 PM   #16
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Yes, I agree I would also think you could damage your other antenna. But depending on how much it cost you, you can decide if it is worth the experiment. You might luck out and be fine. It's hard to tell if the RF would come down your tv line or not. Hopefully someone smarter will chime in here.
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Old 07-22-2016, 10:32 PM   #17
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I would put as much vertical separation as possible between the two antennas to minimize interaction. Also, the fact that one antenna is vertically polarized and the other is horizontal will provide some isolation too. Take a look at the chart on this web site for an idea on isolation you could expect: Isolation between the repeater receiver and RF sources

This will help ensure you don't fry the electronics in the TV antenna, but you may still experience some overloading issues that may affect TV reception. It will depend on the robustness of the electronics in the TV antenna.

If the ham antenna has mismatch issues whereby some of the signal is reflected back on the outside of the coax shield, that can cause you problems as well. To mitigate, google "vhf choke for 2 meter antenna" for advice on how to make a choke.
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Old 07-22-2016, 10:57 PM   #18
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I suppose the question is:
How well does the Jack antenna's amplifier input filter out the 2-metre amateur band? It sits just under the lowest UHF channels (channel 14 starts at 470 MHz), and well above the highest VHF channels.

You might be able to find a filter specifically to remove the 2-metre band and other bands below it from OTA TV antenna signals.
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Old 07-23-2016, 06:13 AM   #19
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Could try calling tech support at King too.
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Old 07-23-2016, 08:13 AM   #20
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Would both be in use at the same time? If one unit is off then is there an issue?
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