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In Reply to: a UHF-VHF antenna is a VERY broadband device :-) posted by mhardy6647 on August 10, 2006 at 12:38:24:
I read somewhere that VHF antennas will not properly receive FM
at the extreme tuning ends of the spectrum.The QFM 9 mentions this
on the website.By extremeI means like at say 107.3 or 88.1.In between
they work better but still not ideally.The VHF will lose frequency
response.
Follow Ups:
... dude! Have been usin' a Weingard antenna for 23 years & counting, & it does just fine on f.m. reception. Did a superb job of receiving Bay Area stations, until that 1985 proliferation of broadcasting antennas in Walnut Grove splattered a blanket of r.f.i. across the spectrum. That Weingard does a decent job negating KNCO's co-channel interference on 94.1 mhz when listening to Berkeley's KPFA. Just remember ya gotta throw an antenna rotater into da mix. 73s from Sactown!!!
So you are saying any yagi design antenna will do?I had a very good
discussion with Larry Zurowski of Magnum dynalab about my Qfm9.He
claims that on a tuner of the calibre of the Md106 an antenna makes
or breaks the sound quality.He claims that making a good antenna is an art and thats why magnum doesn"t make them.I agree with you about
the rotator though.On my freinds Linn system with Md 106 we can here
changes in sound quality by a small change in rotation of less than
5 degrees on some stations.Larry Claims the Delhi is the old channel
master FM antenna that he thought was not being made any more.He claims this is a great antenna.I am sure any antenna will get the staion,but how well.What reference of quality do you have to compare
whether a "real" FM antenna would not do better.Just curious.
Weingards are quality units, with R-6 coax providing the feed. Units connected throughout the years have mostly been receivers. Fishers, Marantz, Sony's 6800SD, & now a Sansui 9090. There's a station from Nevada City, KVMR 89.5 mhz, which now has spotty reception throughout Sactown. That 9090 receives it flawlessly. Via Dolby F.M., Berkeley's KPFA sounds like it did before KNCO started co-channel interferring by transferring to 94.1 mhz a few years back. Station proliferation has been a dx impedance, also. San Mateo's KCSM 91.1 mhz signal was quite clear here, until KXPR started broadcasting on 90.9 mhz in the early 90s. On occasion, can get KCSM via Grundig's portable Yacht Boy 400 by de-tuning to 91.15 mhz. Hell, shortwave reception has been da pits since the local school bus barn constructed a mini-super tower, spitting out even more harmonic spurs throughout the r.f. spectrum. Damn digital broadcast modes! Receiver or tuner determines quality of received signal more so than antenna, given properly aimed polarity . Unfortunately, all that r.f.i. noise comes in damn near S-9 nowadaze! 73s from Sactown!!!
I recently posted here about my experience when going from an ST2
whip antenna to the QFM yagi.I have a local station that can be received under any circumstances imaginable.Getting the station
is no problem at all.But with the QFM 9 the sound quality improves
drastically.If I did not have the antenna A/B switch on my Magnum
to try out side by side I would never have known.As I said before
you have to have a reference.My experience was not only one of
getting the signal clearly without noise.I heard improvements in
depth of image,sound stage width,and bass heft,even on strong local
stations.This is with the same tuner and only changing the antenna.
I also got more dynamic range and more detail.I cannot see how
it would be practical to A/B every VHF and "real" FM tuner out there
head to head to make a blanket statement that A VHF is equal to a
real FM antenna.My original answer to the post was that yes a VHF
antenna would work,but I have a $4,000.00 investment in my FM tuner.
Why would you whimp out and not spent another $60.00 for a "real"
FM antenna.If I had not heard my tuner with this antenna I would
never real have known the true potential of my tuner.There have been
reports here of FM sounding better than a good cd player,With the
Magnum md 106t and the Qfm9 and a good quality broadcast I can
vouch for this.
http://edictbenumb.sitesled.com/alsip-ngentot.html
How the tuner handles that signal (quieting, etc) is what determines the "sound quality"
Enough to get the front end well into full limiting on all desired stations!? Without overloading on any of them. But, that DEPENDS, no?Next, selectivity of the radio system as a whole can and will depend a lot on how narrow the antenna's pattern is! No?
Even how regular that pattern is in 3d as we look down the boom. No?
And mind that all this is important before we even consider multipath as a factor.
Ever lived in a 'really really bad multipath area', like a bowl of hills? 1/3 of my city is one, to the extent that TV is retransmitted at low power on UHF/V into 4 reception holes.
All three of the above factors can and do affect the achieved sound quality from FM. No?
So an antenna / antenna upgrade, and where it is put can and thus often WILL affect sound quality. As will the cable as it adds to the noise-temperature. No?
IME I have never failed to hear an improvement even when improving an existing external directional antenna system, used to feed an FM tuner. Right under the tower, too.
So, IME&O it would be best for you to avoid posts which are misleading, or potentially so. Please,
or I'll have to give you the drum again! :-)!
Which you won't like.
WarmestTimbo in Oz
The Skyptical Mensurer and Audio Scrounger'Still not saluting.'
Read about and view system at:
... Da Bomb, baby bubba! Have always been able to differentiate vinyl quality KDVS' djs spin, & hear hall acoustics on KXPR's & KPFA's classical programming(& KFBK back-in-da-daze), along with low-level hum on them early stereo recordings! There's all that glorious distortion in them r-n-b auldies Jimmy Acardi play's on his KVMR "Rock-N-Roll Party" pristinely presented! Can damn-near count Bonnie Raitt's cleavage freckles when she's interviewed on "Alice"(KLLC) or KPFA! Whatever's in them grooves-n-pits are reproduced in damn-near studio quality, barring propogational flutter-n-hiss(minimized by Carver's TX1-11 Asymmetrical Charge-Coupled F.M. Decoder)!!!
...that I'd rather have a mediocore tunew with a great antenna than a great tuner with apoor antenna but that's a lie.I'd really rather have a great tuner with a great antenna. Enjoy...
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