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Author Topic: VX-7R FACTORY ANTENNA SETUP  (Read 1225 times)
DARTICUS
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Posts: 28




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« on: January 01, 2013, 06:26:16 AM »

VX-7R FACTORY ANTENNA SETUP
What is the correct way to put this antenna together for normal use. Do you leave it together for all bands? Manual poor. Thanks Ron
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K7KBN
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« Reply #1 on: January 01, 2013, 09:38:51 AM »

I just looked at the online manual.  Page 7 covers the information you need.  Basically you use the extender for monitoring (that's "listening", not "transmitting") below 50 MHz.  For 50 MHz and higher, you use the bottom part by itself.
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73
Pat K7KBN
CWO4 USNR Ret.
DARTICUS
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Posts: 28




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« Reply #2 on: January 01, 2013, 11:02:16 AM »

Are you saying this antenna is not for transmitting? What good is it? Thanks Ron
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K7KBN
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« Reply #3 on: January 01, 2013, 12:40:24 PM »

It's not for transmitting below 50 MHz because the radio ITSELF doesn't transmit below 50 MHz.  Above 50 MHz, use it in accordance with your license.
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Pat K7KBN
CWO4 USNR Ret.
DARTICUS
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Posts: 28




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« Reply #4 on: January 01, 2013, 12:51:10 PM »

I guess the real question is how do you assemble this factory antenna for 220 use? Thanks Ron                                                                     
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K7KBN
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« Reply #5 on: January 01, 2013, 05:13:44 PM »

You don't.  The VX-7R, according to the manual, is 6M, 2M and 70cm.  This should tell you that the antenna, which MIGHT work on 220 (depending on your definition of "work"), isn't designed to operate at all on 220 and might be damaged - or might damage the radio.

Where did you get the idea it would "work" on 220?
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Pat K7KBN
CWO4 USNR Ret.
DARTICUS
Member

Posts: 28




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« Reply #6 on: January 01, 2013, 05:33:02 PM »

Yaesu sells it to work with 220 and if you call them they sell it to work with the radio which is 220. They tell you this is the antenna they recommend to work with the 4 bands. Thought that was a good tip.
What makes you think they made a radio with 4 bands and an antenna which is in sections and supplied with the radio and it doesn't work with it??? FACTS JACK! UNLESS THEY LIE???
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KB2VUQ
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« Reply #7 on: January 01, 2013, 08:13:12 PM »

You need the extender to tx / rx on 6 meters and to rx on sw / hf, up to 30 mhz.
The radio does 330mw on 220.
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K7KBN
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« Reply #8 on: January 01, 2013, 10:01:47 PM »

My apologies; I was going by the cover of the manual, which calls the VX-7R a "50/144/430 Triple Band" transceiver and doesn't mention 220.  I see that VUQ correctly points this out.  However, at 330mw, this seems more of a curiosity than a selling feature, which is probably why they didn't advertise it as being a "Four Band" transceiver.  If you're not having success with using this radio on 220, maybe the power level is the reason.

Page 7 of the manual covers all the information I could glean about the antenna.  Like most antennas supplied with HTs, I suspect it's more of a dummy load than an actual radiator.
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73
Pat K7KBN
CWO4 USNR Ret.
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