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

Fri Oct 17 14:00:18 EDT 2014

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_ (http://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_ (http://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_ (http://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_ (http://www.macrollc.com/)  
703-359-9211 
_howardc at macrollc.com_ (mailto:howardc at macrollc.com)  -  personal 
For technical  support, send an email to  _service at macrollc.com_ 
(mailto:service at macrollc.com)  or call 703-359-9211  (24/7) 

ExchangeDefender Message  Security: _Check  Authenticity_ 
(https://admin.exchangedefender.com/verify.php?id=s9G19SAQ020429&[email protected]) 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/k3cal/attachments/20141017/e03fbc5a/attachment-0001.html>