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    Re: Latitude and longitude around noon
    From: Francis Upchurch
    Date: 2017 Mar 31, 05:19 +0100

    I re-did my pencil ,eye, hand  graph last week before I saw the correct 
    results and got LAN 16.57.30 ,giving long. 71deg 21.8'W, LAT 41deg 27.4'N. , 
    but the graph all very subjective and latest one probably lucky. Best method 
    for me probably the  mean of several  equal altitudes. Like Orjan, I would 
    appreciate to know  "the correct best way according to Frank."
    Re. Off topic crystal sets. Could you use them to pick up time signals and 
    make them on topic? I built a couple with my kids years ago, one using a 
    natural galenium crystal and cat's whiskers, the other using an old, slightly 
    rusty non stainless razor blade and graphite pencil as a diode. (As used by 
    British POWs during WW2) Both worked great with long aerials, once you found 
    the best spot with cats whisker or pencil.
    When did time signals come in the US? I think BBC started about 1924, but the 
    RN had them before  WW1? Although "electronic", no batteries or high tech, so 
    primitive enough for my low tech approaches. BBC radio 4 still broadcasts 
    time signals (pips) on long wave, easy to receive by simple crystal set.
    Best wishes
    Francis
     
    
    
    -----Original Message-----
    From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Örjan Sandström
    Sent: 30 March 2017 23:14
    To: francisupchurch---.com
    Subject: [NavList] Re: Latitude and longitude around noon
    
    Frank, could I get a link to a good step by step on the proper way?
    Off-topic below, waay off topic.
    Crystal radio, hmm, interesting.
    I have a few, everything from variometer made with cotton spun wire on 
    phenolic with mineral detector and magnetic phones to top end modern DX with 
    bifilar wound 170mm diam 660x46litz aircore coils and silverplated ceramic 
    insulated variable capacitors for both ATU and floating detector unit.
    said detector unit with high end schottky detector followed by matching 
    network and "big can" balanced armature soundpowered phones. The wavetrap is 
    just 660x46 single strand and aluminium ceramic variable cap.
    
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