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FC-40
kc9anq
Robbie
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Thank you for being the first post and welcome all to the new group. I have had the FC-40 for a month now and it work great I have experimented with a 40 foot wire and a 55 foot wire with great success, It makes 60 meter in the USA a WALK IN THE PARK to use. I made contacts with great results on all bands but 160 and 6, I have not been able to tune up on 160 with such a short wire and 6 ,,,,,well 6 meter is just 6 meter LOL no conditions yet. I am using the tuner with My 897D on field day and will be using a fulll wave loop for 160 meter. I will let the group know what I find by next weekend. I plan on running a "test" with a loop before field day. Thanks for joining, Bill --- In YaesuTuner@..., "ei2ip" <robbiephelan@h...> wrote:
I just purchased a FC-40 from Ebay... Should have it next week.. |
Robbie Phelan
Thanks Bill,
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I came across this article on eham.. Might be of interest, it was written by Paul KA6GEM.... """ The length of antenna wire is very important. The FC-40 will tune 160 through 6 meters as Yaesu claims but it is entirely dependant on the length of the wire. Based on my findings, it will not tune a half-wave, a fairly common limitation of "random wire" antenna tuners, and there doesn't appear to be a single length that is ideal for ALL bands, although 37 feet, in my experience, comes pretty close. One nice thing is that it is very easy to change your antenna length: just add or subtract a few feet and that's it! I have found that inserting a insulator at about 50 feet and leaving the ends of the wires on each side stripped allows the option of simply connecting them or disconnecting them to work the 160 meter band or perhaps the 60 meter band, etc. I tried various lengths of wire from about 30 feet to about 130 feet, the upper limit at my QTH. At 37 feet, I could tune up on almost every band but the signal reports for the longer wavelength bands (80, 60, 40 etc.) were marginal. As I increased the length of wire, I gained better performance on one band but lost on others. At about 85 feet, I received excellent reports on 40 meters, but then I could not tune on the 80 meter band as the length was too close to a half wave. I ran a series of comparisons with two dipoles, one for 80 meters and the other for 40 meters. The 80 meter dipole performed better by one or two "S" units than the FC-40 with a 65 foot quarter wave wire. I don't have enough real estate to extend the wire to a three quarter wave or about 190 feet for the 80 meter band. On the 40 meter band, however, a length of about 90 feet performed very well and the signal reports tended to be an "S" unit higher than the 40 meter dipole. Although it's a vertically polarized antenna, I have not noticed any major increase in noise with the FC-40 random wire as compared to a dipole. Unlike the Icom AH-4, the Yaesu FC-40 will tune on 160 meters and I made my first contact on the top band in almost 15 years with a wire about 85 feet long. I had nothing to compare it to but the signal report I got was excellent. Although still fairly new, I have heard two other FC-40s on the air, mostly in mobile set ups and both operators seemed very pleased with their performance. In summary, I'm very pleased with this new automatic antenna tuner. I'd give the Yaesu FC-40 a solid "5" (on a 5 scale) without hesitation.""" ----- Original Message -----
From: "kc9anq" <kc9anq@...> To: <YaesuTuner@...> Sent: Wednesday, May 18, 2005 11:15 AM Subject: [YaesuTuner] Re: FC-40 Robbie |
redhusky69
--- I just bought a FT-897D- (still in the opened box) being brand
new to the Ham World since a novice license in 1967 - I also bought the FC-30 Tuner -(still in the sealed box) A ham from a large radio chain of stores suggested I not unseal the box and that I return it and exchange it for the LDG At-897 with the justification that that tuner will permit a larger band width. I would be very grateful if anyone would provide me with whatever comments they might have concerning this "advice" - Thank you for your reply - Mark - KC2OCY In YaesuTuner@..., "Robbie Phelan" <robbiephelan@h...> wrote: Thanks Bill,written by Paul KA6GEM....tune 160 through 6 meters as Yaesu claims but it is entirely dependant onthe length of the wire. Based on my findings, it will not tune a half-wave, afairly common limitation of "random wire" antenna tuners, and theredoesn't appear to be a single length that is ideal for ALL bands, although 37feet, in my experience, comes pretty close. One nice thing is that it is veryeasy to change your antenna length: just add or subtract a few feet andthat's it! I have found that inserting a insulator at about 50 feet and leavingthe ends of the wires on each side stripped allows the option of simplyconnecting them or disconnecting them to work the 160 meter band or perhapsthe 60 meter band, etc.feet, the upper limit at my QTH. At 37 feet, I could tune up on almost everyband but the signal reports for the longer wavelength bands (80, 60, 40etc.) were marginal. As I increased the length of wire, I gained betterperformance on one band but lost on others. At about 85 feet, I received excellentreports on 40 meters, but then I could not tune on the 80 meter band as thelength was too close to a half wave.and the other for 40 meters. The 80 meter dipole performed better by one ortwo "S" units than the FC-40 with a 65 foot quarter wave wire. I don't haveenough real estate to extend the wire to a three quarter wave or about 190feet for the 80 meter band.very well and the signal reports tended to be an "S" unit higher than the 40meter dipole. Although it's a vertically polarized antenna, I have notnoticed any major increase in noise with the FC-40 random wire as compared to adipole. made my first contact on the top band in almost 15 years with a wire about85 feet long. I had nothing to compare it to but the signal report I got wasair, mostly in mobile set ups and both operators seemed very pleased with theirantenna tuner. I'd give the Yaesu FC-40 a solid "5" (on a 5 scale) withoutgroup. success, contactsIt makes 60 meter in the USA a WALK IN THE PARK to use. I made able towith great results on all bands but 160 and 6, I have not been just 6tune up on 160 with such a short wire and 6 ,,,,,well 6 meter is find bymeter LOL no conditions yet. day.next weekend. I plan on running a "test" with a loop before field wrote: well??I just purchased a FC-40 from Ebay... Should have it next week..
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kc9anq
I have used the LDG tuner before and it has a much larger span of
tuning. You can "make" the LDG tune a non resonant antenna easier than with the Yaesu. The LDG Tuner is capable of a Antenna impedance: 6 to 800 Ohms (Approximately up to 10:1 SWR) where as the FC-30 can tune 17 to 150 Ohms (25 to 100 Ohms on 50 MHz) The info was taken from the Yaesu 897D brochure --- In YaesuTuner@..., "redhusky69" <MJKalik@A...> wrote: --- I just bought a FT-897D- (still in the opened box) being brandbought the FC-30 Tuner -(still in the sealed box) A ham from a largeradio chain of stores suggested I not unseal the box and that I returnit and exchange it for the LDG At-897 with the justification thatthat tuner will permit a larger band width. I would be very grateful ifwas written byaPaul KA6GEM....tune 160 fairlyverycommon limitation of "random wire" antenna tuners, and theredoesn't appearto be a single length that is ideal for ALL bands, although 37feet, in myexperience, comes pretty close. One nice thing is that it is easy toleavingchange your antenna length: just add or subtract a few feet andthat's it! Ihave found that inserting a insulator at about 50 feet and the endseveryof the wires on each side stripped allows the option of simplyconnectingthem or disconnecting them to work the 160 meter band or perhapsthe 60meter band, etc.feet, the band butexcellentthe signal reports for the longer wavelength bands (80, 60, 40etc.) weremarginal. As I increased the length of wire, I gained betterperformance onone band but lost on others. At about 85 feet, I received reportstheon 40 meters, but then I could not tune on the 80 meter band as lengthmeterswas too close to a half wave. and theorother for 40 meters. The 80 meter dipole performed better by one two "S"haveunits than the FC-40 with a 65 foot quarter wave wire. I don't enough190real estate to extend the wire to a three quarter wave or about feet forperformedthe 80 meter band. very well40and the signal reports tended to be an "S" unit higher than the meterto adipole. Although it's a vertically polarized antenna, I have notnoticed anymajor increase in noise with the FC-40 random wire as compared dipole.and I made myaboutfirst contact on the top band in almost 15 years with a wire 85 feetwaslong. I had nothing to compare it to but the signal report I got theirexcellent.air, mostly automaticperformance. In summary, I'm very pleased with this new antennawithouttuner. I'd give the Yaesu FC-40 a solid "5" (on a 5 scale) ishesitation."""group. just 6using ameter LOL no conditions yet. Ifulll wave loop for 160 meter. I will let the group know what find byfieldnext weekend. I plan on running a "test" with a loop before day.week..wrote: perform well?? |
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