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  1. Thread: Round 2.

    by OH8GAD
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    1
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    123

    Welcome back. Hope you're too disappointed... ;)

    Welcome back. Hope you're too disappointed... ;)
  2. Replies
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    Oh wow, I had forgotten about those. As a kid, I...

    Oh wow, I had forgotten about those. As a kid, I used to watch the Royal Institute Christmas Lectures. If I remember correctly, they were shown on TV during the school summer holidays on BBC2.
    ...
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    Neat! When I lived back in the UK, I had a...

    Neat!

    When I lived back in the UK, I had a 3-ele beam for my 2-metre rig. One morning, it was pointing south-west-ish, towards London (I lived about 80 km north-east of London). I was listening...
  4. Thread: Bandwidth

    by OH8GAD
    Replies
    6
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    295

    That's correct.

    That's correct.
  5. Thread: Bandwidth

    by OH8GAD
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    295

    Buuuut... legally, you are only required not to...

    Buuuut... legally, you are only required not to cause interference to services OUTSIDE of the amateur radio frequency allocations. So, technically, if you want to spurge a 200 kHz AM transmission in...
  6. Thread: Bandwidth

    by OH8GAD
    Replies
    6
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    295

    https://rsgb.org/main/operating/band-plans/vhf-uhf...

    https://rsgb.org/main/operating/band-plans/vhf-uhf/432mhz-band/





    and so on...
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    Yes, but very heavily attenuated, at least by 3...

    Yes, but very heavily attenuated, at least by 3 dB.
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    326

    Protection from a lightning strike about 20 foot...

    Protection from a lightning strike about 20 foot away? You'd be very, very lucky to do so. When I worked for a major mobilephone network equipment manufacturer doing EMC testing, the ports were...
  9. Thread: Bandwidth

    by OH8GAD
    Replies
    6
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    295

    Yes, it would and does. You have to realise that...

    Yes, it would and does. You have to realise that when you transmit, the bandwidth of your signal does not drop to nothing 12,5 kHz from the carrier centre frequency. In theory, it goes on...
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    About 20 metres of thin wire with a small weight...

    About 20 metres of thin wire with a small weight on the end. Hang it from the balcony. Even better if you have an ATU with you.
  11. Replies
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    Mobile Radios If you can't fix it, just get used to saying...

    If you can't fix it, just get used to saying things like "roger diddly", "breaker, break" and "10-4, good buddy!"
    ;D
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    Unless your anticipated range is less than one...

    Unless your anticipated range is less than one metre, I wouldn't use 27 MHz. In most cases I have heard UW comms takes place below 30 kHz (reference:...
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    Only if you're approaching the speed of light......

    Only if you're approaching the speed of light...
    Other than that, I would suggest a mechanical fault, such as a poor RF connection between rig and aerial - when the vehicle accelerates, the aerial...
  14. Thread: The lovely C.B.

    by OH8GAD
    Replies
    13
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    925

    I didn't actually start with CB - my dad was a...

    I didn't actually start with CB - my dad was a licensed radio amateur for many years and a SWL for a long time before that. But, I used CB before getting my amateur license.
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    Hamma Montana? Sorry, just hcouldn't resist it......

    Hamma Montana? Sorry, just hcouldn't resist it...

    Anways, welcome to the forums.

    Here's a google search page for the history of the Kenwood radio company:
    https://bit.ly/2GXO6Cd (shortened...
  16. Thread: My new website.

    by OH8GAD
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    3
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    623

    The voltage/ammeter comes from banggood.com and...

    The voltage/ammeter comes from banggood.com and cosys about five Euros. You can get them for 10, 50 and 100 amps.
  17. Thread: My new website.

    by OH8GAD
    Replies
    3
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    623

    My new website.

    I'm having a bit of a renaissance with both my amateur radio and web page design. I usually learn better when I have a practical reason for doing something, such as when I tried learning javascript...
  18. Thread: Beam antennas

    by OH8GAD
    Replies
    4
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    791

    First up, do a bit of reading, for example:...

    First up, do a bit of reading, for example: http://www.arrl.org/vhf-beams is good start.

    As for needing a rotator - yes and no... yes for practicability, but with a small set-up you can get away...
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    :'D I went to a British Merchant Navy Radio...

    :'D

    I went to a British Merchant Navy Radio Officers' college frok 1988 to '90. From the mid-80s onward, I think less than a quarter go work at sea. One was even a sheep farmer in NZ for a few...
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    Read. The. F***ing. Manual. How dare you...

    Read.
    The.
    F***ing.
    Manual.

    How dare you sir! I'm an engineer, to suggest such a sensible course of action is heresy! ;)

    Many thanks for that - to be honest, I had never noticed it before...
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    It's also OK on FM and seems to TX OK.

    It's also OK on FM and seems to TX OK.
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    Possible problem with IC-735 receiver?

    My ICOM IC-735 has been working OK for several years, but I have hardly used it as I didn't have a decent power supply.
    Last week, I finally got one. I hooked up the radio and... nothing!
    A symptom...
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    There's nothing new about vertical dipoles. Just...

    There's nothing new about vertical dipoles.
    Just few suggestions:
    The higher from the ground the better.
    Run the coax away from the feed point at 90 from the vertical for as long as practically...
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    I would say neither, until you know what you what...

    I would say neither, until you know what you what from "upgrading".

    I mean, what can they do, that you need, that the Baofeng UV-5R cannot?

    If you need more range, then build a direction...
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    Sticky: Actual link is: http://ac6v.com/prefixes.php

    Actual link is: http://ac6v.com/prefixes.php
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