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Type: Posts; User: brandon lind

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    Cellular passive "repeater"

    Apologies for the lengthy story, this one is for people professionally acquainted with cellular sites...

    I recently went camping with the family, and of course, a few people really needed their...
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    I would ask if their current radios are licensed...

    I would ask if their current radios are licensed as abandoning an active license would seem unwise. What frequency do they currently run on VHF, a MURS color dot one or something licensed?

    Id also...
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    I would take the hard drive out of the 3.1 system...

    I would take the hard drive out of the 3.1 system and temporarily connect it to the XP system via IDE cable just like the XP systems HDD and use XP OS to copy the files to the other HDD then...
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    That does look awesome. Ive used automotive...

    That does look awesome. Ive used automotive ignition coils and microwave transformers before. I used to drive 12v ignition coils using 120v mains with a triac dimmer switch in series. On low, the...
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    Many thanks! I remember a scratch in the black...

    Many thanks! I remember a scratch in the black finish on the top of one if the insulators looked brown so maybe the top was bakelite. Hopefully you happen to cross paths with one, I've spent years...
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    1127 I forgot to add the screw heads on the...

    1127

    I forgot to add the screw heads on the electrical cord plate and there are two metal ears on the top surface for bolting it into the side of the furnace, but this looks very close to what it...
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    Close, but not quite. Ill fire up solidworks and...

    Close, but not quite. Ill fire up solidworks and create a 3D part from memory and get it posted. Shouldnt take long.
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    Mobile Radios You got me there, but the internet says after the...

    You got me there, but the internet says after the tone transmits, the mic audio is absent for a full few seconds thereafter. I never got into digital modes, just quoting a search result that caused...
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    Mobile Radios Its not in wires x mode, is it? If so, pull off...

    Its not in wires x mode, is it? If so, pull off the bottom left knob and add an o ring or washers to the shaft so you dont accidentally toggle it to "internet on" by bumping it.
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    No. Im thinking the one i had was from the 60's....

    No. Im thinking the one i had was from the 60's. It might have been a Westinghouse because when i see the color and the labels on their motors, something about it stands out. It was a cylindrical...
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    High voltage oil burner transformer

    Completely non-radio related, but I thought I would probe the minds of the elders here.

    My electronics history starts at 5 years old with my first soldering iron burn on my foot. Many destroyed...
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    I agree with and appreciate your decision, M0BOV....

    I agree with and appreciate your decision, M0BOV. Thank you!

    This post can be laid to rest as my friend is arriving tomorrow and I've already decided to proceed as planned as I have not yet hit...
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    This wasn't a question of performance, it was one...

    This wasn't a question of performance, it was one of maximum legal height off the ground.

    As for the performance aspects you mentioned... allow me to set your mind at ease. The vehicle is a 2004...
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    mobile antenna height

    I am about to help a friend install a mobile whip antenna on 10m. When I made the one for my truck, for some reason I came to the conclusion the maximum height from ground to the tip was 14ft 6inch....
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    Icom IC-718 would be a very nice one to start...

    Icom IC-718 would be a very nice one to start with. Well priced and sounds great on the air.
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    The next step is a general or extra class...

    The next step is a general or extra class license. Get some study material and prepare for the next text. While you are doing that, get a decent HF radio and some means of checking antennas like an...
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    The rubber button at the top right of the...

    The rubber button at the top right of the display, press and hold to toggle the lock on and off.
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    11m has been absolutely amazing for the past...

    11m has been absolutely amazing for the past month now here in the US. I talked to a few guys in the Blue Ridge Mountains (from Minnesota) from my barefoot DX979 in the truck yesterday after doing a...
  19. You should consider the Lundahl LL1571...

    You should consider the Lundahl LL1571 transformer in the series-series configuration as the turns ratio of 1:1.75 is closest to the ideal turns ratio of 1:1.83 for achieving a 600 to 2kohm match....
  20. Its just a coil of wire inside with a 2000ohm...

    Its just a coil of wire inside with a 2000ohm impedance. Since most radios have microphone input impedances of 600ohm, you will want to find an audio transformer to go between the two. Thats a nice...
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    Personally, I use a 220Ah Caterpillar battery...

    Personally, I use a 220Ah Caterpillar battery with a Beleeb CL-C40 battery charger (not a smart charger). The charger makes absolutely no noise on any of my radios and the battery can take anything I...
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    Most (not all) PC supplies are a bit noisy and...

    Most (not all) PC supplies are a bit noisy and the 12v they output drops a little when keyed down on a ham radio, making them a bit low on the voltage side of things for most finals. I've killed...
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    Commercial broadcasting refers to a one-way...

    Commercial broadcasting refers to a one-way communication to a broad spectrum audience with no expectation to receive a response. Commercial broadcaster stations use translators (aka broadcast relay...
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    4/6/1914, definitely went back some years!

    4/6/1914, definitely went back some years!
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    Full wave antennas are tricky things to feed (at...

    Full wave antennas are tricky things to feed (at least from the center or either end) due to the extremely high impedance at those points. That ground plane he made was almost a perfect half-wave in...
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