Nashua Area Radio Society

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  • in reply to: Interesting Radio Reference Database #2665

    Electric Utilities is one that you’ll want after a big storm and lots of power outages.

    http://forums.radioreference.com/new-hampshire-radio-discussion-forum/110044-psnh-frequencies.html

    Also during an emergency you might want to be able to monitor FRS/GMRS frequencies – These are the low cost HTs you see on many building supply and in many stores for public consumption.

    http://wiki.radioreference.com/index.php/FRS/GMRS_combined_channel_chart

     

    in reply to: Please Recommend Mobile HF Antenna #2631

    Hi Murray:

    I echo Fred’s comments.  Besides Fred’s blog, I really recommend reading http://www.K0BG.com, it’s “The book” on mobile HF.  I’ll be happy to show you my mobile HF install and talk antennas, etc.

    73 Dave N1RF

    in reply to: CW or QRP? #2450

    Has anyone used the AlexLoop magnetic loop for QRP?  If so with what effect?

    in reply to: How do I add lightning protection for me feed lines #2428

    Hi Tony,

    Where was this question last month, when I was doing mine.

     

    I put put my ground rod about 3-4 feet away from my house.  To sink the ground rod I used a water drill which worked really well and is very easily constructed for less tha $20.  Here is essentially the model I used.

    http://youtu.be/-kpI8PFNYl4

    Attached to the ground rod I have a Z  bracket (the thing you got at HRO) with two lightening arrestors, one for my vhf, and one for my hf antennas, I also have my #6 solid copper wire which I have run to the ground bar of the AC panel inside the house.  Like you my AC main ground is a long way from the shack entrance.  It is important to ground your lightening protection to your AC main ground otherwise one day you touch something and you become the element that completes the circuit- not a good outcome.

    For RF grounding, I use separate 1/2 inch braided copper to  a 4′ length of 3/4″ copper pipe from each of my components attached with hose clamps.  Then 3/4 inch copper braid also attached with hose clamp to just before the exit of my house where I have joined it to #2 heavy gauge stranded copper out through the wall and to the ground rod.

    I will upload pictures when I get home this weekend.

    Like you at the Tech Night, I struggle with disconnecting the feed lines outside of the house, how do I keep my coax from getting wet?  I waterproofed the connections the best I could at install with the rubberized coax tape and electrical tape, which completely covers the attachments on both sides of my lightening arrestors, hoping this would be a somewhat permanent connection.  I don’t relish the idea of doing this everyday.  I do however unplug the feed lines from my gear inside the shack.

    The correct answer, of course,  is to unplug outside, but I wonder how many folks really do that?  I would welcome comments on that point with the full understanding and acknowledgement that this is merely an expression of what others do, and in no way advice on how I should proceed!

    I mostly followed Fred’s  (AB1OC) article when planning, any errors in implementation were mine…

    73

    Greg

     

    in reply to: Hex Beam Install #2415

    Fred I think having the 4 x 4 concreted in the ground provide to me a couple of options that I might not otherwise have it allows me to elevate the rotor should I go with the bottom mounted rotor as opposed to a mast mounted rotor that really enables me to keep the rotor out of the snow in the winter time.  The additional rigidity that the 4 x 4 provides would allow me to actually put a ladder on the 4 x 4 not in the mast itself which should help when extending the mast. Also I am hoping it will provide horizontal support additional to the guys.

    in reply to: N1FD Activation at Saint Gaudens NHS! #2315

    Are you signing up operators to help with the activations?

    in reply to: REMINDER: Field Day Planning Meeting Tonight #2118

    Sounds great! Thanks, Fred. I’ll definitely try to make it out to the next few. Will put it in my calendar sooner vs later.

    in reply to: Call for newsletter articles #2076

    I emailed a docx file on a newsletter submission about the SSC process to KC1ECE but haven’t heard anything from him

    in reply to: ARISS and Satellites #2067

    Curtis:

    FB.  VERY COOL! Congratulations.  And the JT contacts you have logged

    on your QRZ page look impressive.

    Dave N1RF

     

     

     

     

     

    in reply to: REMINDER: Field Day Planning Meeting Tonight #2054

    Hi Fred and everyone,

    Very interested in participating and helping out during Field Day in whatever capacity needed. Couldn’t make it to the meeting tonight; just got in from being out of town, but happy to lend a hand where I can. I’ll wait for minutes or notes to be posted I suppose.

    –Brian

Viewing 10 posts - 461 through 470 (of 489 total)

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