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KG6BAJ > NWSGRP 16.08.09 22:11l 50 Lines 1786 Bytes #999 (0) @ WW
BID : 9976_N1OES
Read: GUEST
Subj: Re: MFJ-269 Antenna Analyzer experience
Path: DB0FHN<DB0FOR<DB0SIF<DB0GV<DB0LJ<DB0RES<ON0BEL<ZS0MEE<GB7LDI<N9PMO<
VE9MPF<N4JOA<N9ZZK<KG6BAJ<KG6BAJ
Sent: 090816/1200Z @:KG6BAJ.#NCA.CA.USA.NOAM #:9976 [Grass Valley] InterGate $:
** NEWSGROUP: rec.radio.amateur.antenna
** FROM : "Peter" <pm@hotmail.com>
"Roy Lewallen" <w7el@eznec.com> wrote in message
news:r42dnaoVpsHHABrXnZ2dnUVZ_vWdnZ2d@giganews.com...
> Peter wrote:
>> Hi all
>>
>> I'm looking at purchasing an MFJ269 antenna analyser and keen to hear
>> experience of others in this group regarding this or similar analysers.
>> Appears to be ideal if it is as good as MFJ claim.
>
> I have one and find it extremely handy for a variety of tasks such as
> measuring the length or velocity factor of coax lines or the impedance of
> ferrite cores. But ironically, the one thing it's almost completely
> useless for, at my QTH, is analyzing antennas. Induced fields from TV, FM,
> and AM broadcast stations are so high that the MFJ isn't able to detect
> its own signal. This isn't unique to the MFJ -- I've had the same problem
> with a very expensive HP digital impedance meter, and revert to my old GR
> bridge with a tuned receiver for a detector when I want to actually
> measure an antenna's impedance. For me the MFJ is worthwhile just for the
> other functions it provides, but it might or might not be for you. Just
> keep in mind that, depending on your QTH, it might not be able to actually
> measure antenna impedances.
>
>
> Roy Lewallen, W7EL
Roy
All comments noted. I do in fact live within 2km of an AM transmitter
although I believe it's not that high powered and I also have an FM
transmitter within 5km, therefore I'm interested in the details of your
location in relation to the various transmitters.
Regards
--
Peter VK6YSF
http://members.optushome.com.au/vk6ysf/vk6ysf/main.htm
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