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Thread: 220 mhz monoband HT?

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  1. #1

    Default 220 mhz monoband HT?

    Does anyone make a good one?

  2. #2
    Join Date
    Jul 2004
    Location
    Newport Beach, California
    Posts
    6,095

    Default

    Nobody makes one, period. The best HT for 220 is the Kenwood tribander. 5w on 220/

    73,
    Bill
    Member: Backyard Engineering Group

  3. #3

    Default

    Quote Originally Posted by K7JBQ View Post
    Nobody makes one, period. The best HT for 220 is the Kenwood tribander. 5w on 220/

    73,
    Bill
    Wouxon makes a really nice 2m/220 dual bander.

  4. #4

    Default

    I've noticed these on eBay but who knows if they're any good:

    http://www.ebay.com/itm/170866103795...ht_1574wt_1396

  5. #5

    Default

    Quote Originally Posted by KC2SIZ View Post
    I've noticed these on eBay but who knows if they're any good:

    http://www.ebay.com/itm/170866103795...ht_1574wt_1396
    I would not trust a seller who puts "Kenwood Yaesu" in the title to manipulate the keyword search.

  6. #6
    Join Date
    Mar 2001
    Location
    Bremerton, WA
    Posts
    3,595

    Default

    Quote Originally Posted by K1FBI View Post
    I would not trust a seller who puts "Kenwood Yaesu" in the title to manipulate the keyword search.
    He actually put "Kenwood Yeasu" in the title. Which is yet another reason for not trusting him, AFAIC.
    A day without thermonuclear fusion
    is like a day without sunshine.

    Semper ubi sub ubi.
    73 de Pat, K7KBN
    CWO4 USNR Ret.

  7. #7
    Join Date
    Jul 2009
    Location
    JEFF-N3IFD/AECW The Keyed Kite! 1/3 mile east of Oxford Circle, Philadelphia, PA, USA, Earth, FN20la
    Posts
    220

    Default

    The 1.25 Meter Band(219 MHz =to= 220 MHz, 222 MHz =to= 225 MHz) is a very interesting band.

    When in any R.F. environment you need at least a 1/2 wave clearance(in free space) for R.F. to pass through with little or
    no attenuation. Waveguides work on this same principle.

    However, for receiving antennas to work at their best, they need to be as long as one can make them without too
    much pattern focusing(too high gain).

    For the 006 Meter Band(050 MHz =to 054 MHz) you need 118 inches(9' 10") for a 1/2 wave clearance.
    For the 002 Meter Band(144 MHz =to= 148 MHz) you need 41 inches(3' 05") for a 1/2 wave clearance.
    For the 1.25 Meter Band(219 MHz =to= 220 MHz, 222 MHz =to= 225 MHz) you need 27 inches(2' 03") for a 1/2 wave clearance.
    For the 0.70 Meter Band(420 MHz =to= 450 MHz) you need 14 inches(1' 02") for a 1/2 wave clearance.
    For the 0.33 Meter Band(902 MHz =to= 928 MHz) you need 07 inches for a 1/2 wave clearance.
    For the 0.23 Meter Band(1,240 MHz =to= 1,300 MHz) you need 05 inches for a 1/2 wave clearance.

    When in a car, the 0.70 Meter Band is best. There is at least 14 inches(1' 02") vertical clearance there that is R.F. passive(windows).

    When in a house, the 1.25 Meter Band is best. There is at least 27 inches(2' 03") vertical clearance there that is R.F. passive(windows).

    When in the open, the 006 Meter Band is best. There is at least 118 inches(9' 10") vertical clearance there that is R.F. passive.

    I did not include the 010 Meter Band or below. They really are considered non-local bands even though they could be used for local
    communications when ionospheric propagation is not usable.

    I hope this is helpful in some way to whoever/whomever needs to see it.

    JEFF-N3IFD/AECW


    JEFF-N3IFD/AECW ==> The Philly Phanatic & OM Elmer! "Always Entertaining & Continuously Wacky!" "Home of 'The Keyed Kite!' "
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  8. #8

    Default

    Quote Originally Posted by N3IFD View Post
    For the 006 Meter Band(050 MHz =to 054 MHz) you need 118 inches(9' 10") for a 1/2 wave clearance.
    For the 002 Meter Band(144 MHz =to= 148 MHz) you need 41 inches(3' 05") for a 1/2 wave clearance.
    For the 1.25 Meter Band(219 MHz =to= 220 MHz, 222 MHz =to= 225 MHz) you need 27 inches(2' 03") for a 1/2 wave clearance.
    For the 0.70 Meter Band(420 MHz =to= 450 MHz) you need 14 inches(1' 02") for a 1/2 wave clearance.
    For the 0.33 Meter Band(902 MHz =to= 928 MHz) you need 07 inches for a 1/2 wave clearance.
    For the 0.23 Meter Band(1,240 MHz =to= 1,300 MHz) you need 05 inches for a 1/2 wave clearance.

    JEFF-N3IFD/AECW
    Yes, clearance is very important, especially if one has to use a parking garage, travel under low bridges, or has a high vehicle like an SUV. However, clearance has got nothing to do with frequency or wavelength.

    The formula for clearance = HEIGHT OF OBSTRUCTION - HEIGHT OF VEHICLE

  9. #9
    Join Date
    Sep 2001
    Location
    New Castle, Delaware (FM29ep)
    Posts
    1,145

    Default

    Quote Originally Posted by KC2SIZ View Post
    Does anyone make a good one?
    Alinco DJ-V27T is widely available. Very nice single band 220MHz ht.

    http://lmgtfy.com/?q=Alinco+DJ-V27T

  10. #10

    Default

    Quote Originally Posted by NI3B View Post
    Alinco DJ-V27T is widely available. Very nice single band 220MHz ht.

    http://lmgtfy.com/?q=Alinco+DJ-V27T
    Indeed. Thanks for the link.

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