[K3CAL] Fwd: How to improve hand held radio performance

[David Hardy via K3CAL]

21.5 ?inches of 14awg wire and a ring terminal.? How simple can you get?? I'll be making one of these in the morning.?? That's for 147mHz.? Just right for our repeater. 
 

David Hardy???     davehardy0101 at aol.com
        KB3RAN
    ?



-----Original Message-----
From: Kh6cuj--- via K3CAL <k3cal at mailman.qth.net>
To: k3cal <k3cal at mailman.qth.net>
Sent: Fri, Oct 17, 2014 3:54 pm
Subject: [K3CAL] Fwd: How to improve hand held radio performance

       To All,
 ?
 The Email below is from the MARCOPRS MARATHON MEDICAL GROUP of which I am a  part of for the upcoming marathon.
 ?
 You have to go the link at www.w4ava.org?to see a great  video on making a "Tiger Tail" for your handheld. You have to scroll down at the  site to see the "You Tube" video.
 ?
 I was surprised to see what the addition to a handheld showed on the  Spectrum Analyzer as shown in the video.
 ?
 Aloha,
 Les
 KH6CUJ
           From: howardc at macrollc.com
To: wd5dbc at arrl.net
Sent: 10/15/2014 9:09:56    P.M. Eastern Daylight Time
Subj: How to improve hand held radio    performance

   ?
      Hi
   ?
   David Jordan, WA3GIN, made the following recommendation to    improve the performance of hand held radios.
   ?
   Many thanks to David for providing this    information..
   ?
   WD5DBC
   ?
   >We've recommended to Howard Cunningham that the    volunteers for race
>route duty be instructed to incorporate radio    operator 'best
>practices', i.e. install 'tiger' tail radials on    hand-helds radios,
>when deployed locate away from commercial garage    door openers (which
>cause RFI on 2m) or other local RFI (Metro buses),    hold hand-held
>radios-do not belt-clip radios, use 1/4 wave whips-not    rubber duck
>antennas, etc.
>
>We provided a very    informative hand-held radio user training video for
>the MCM radio    operators. The video can be found on the W4AVA home page
>www.w4ava.org? I hope this years training meeting will    include viewing
>this video or at least make it known to the volunteers    that they can
>view the video at www.W4AVA.org.
>
>Proper use of the hand-held    radio can improve the receive and transmit
>signals significantly ex: a    belt-clip 5 watt radio with rubber duck has
>an ERP of 50 mw as compared    to a hand-held with tiger tail and 1/4 wave
>whip w/ERP of 4.5-5    watts.? Do the math that is a massive difference in
>performance,    almost 16db.
>
>You have three repeaters available for MCM use,    the 146.625, 447.625
>and 448.625 all using PL107.2.? If you prefer    we can link the
>146.625 with the 447.625 providing access via both VHF    and UHF bands.
>Your call.
>
>You may be aware that the    W4AVA repeater system is partner of a larger
>wide area network system    covering over 10,000 sq. miles.
>During the MCM the W4AVA repeater will    not be linked and will operate
>stand-alone, dedicated to the 2014    MCM.
>
>Have a Great race,
>dave
>wa3gin
>W4AVA    Repeater Trustee
   ?
   Howard Cunningham,    MCP
   Microsoft Small Business    Specialist
   Macro Systems,    LLC
   3867 Plaza    Drive
   Fairfax, VA    22030
   www.macrollc.com
   703-359-9211
   howardc at macrollc.com -    personal
   For technical    support, send an email to    service at macrollc.com or call 703-359-9211    (24/7)
   ?


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