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Re: Is this a silly idea??? FC-40 feeding an ATAS-25
Kyle N4NSS
Since the 25 is manual, I think?the antenna has to be adjusted to the portion of the band you wish to work.? I don't think your idea is very efficient.? I use?a 102 inch whip with all band tuning.? john84866 wrote: Hi folks, I'm new round here
Yahoo! for Good - |
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Re: RF on control cable
KC9ANQ
try running a few 1/4 wave radials for each band from the ground side
how long is you wire? --- In YaesuTuner@..., "wa5vro" <txwa5vro@a...> wrote: 40. I was unable to get the tuner to tune a long wire except for 80meters. I installed dipoles for 40 through 15 meters. When I use the 15-meter dipole, the radio does funny things. I determined that there wasRF coming in on the control cable.Any suggestions?of hard when there is limestone and rock 3-inches below the dirt. |
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RF on control cable
wa5vro
Any suggestions for removing RF on the control cable for the FC-40. I
was unable to get the tuner to tune a long wire except for 80 meters. I installed dipoles for 40 through 15 meters. When I use the 15-meter dipole, the radio does funny things. I determined that there was RF coming in on the control cable. I have several chokes on cable and this does not seem to help. Any suggestions? I know that I really need to improve my grounding, but it is kind of hard when there is limestone and rock 3-inches below the dirt. Thanks and Happy New Year! |
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Is this a silly idea??? FC-40 feeding an ATAS-25
john84866
Hi folks, I'm new round here
I use an FT 897d and have recently come by an atas-25 (the manual version of an atas 120) I was wondering about feeding the atas-25 via the fc40 to avoid the manual tuning or am I just being plain silly! thanks in advance Best wishes, John MM1ANP |
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Anyone using both the AT-897 and the FC-40 together?
paulcbg
I am using both the LDG "AT-897" and my FC-40 with three antennas and
a control switch. Is anyone else doing the same? The control cable for the AT-897 is connected to the back of my FT- 897D in the usual manner at the radio's Antenna Tuner port and the control cable for the FC-40 is connected to the AT-897's auxilary Antenna Tuner port at the lower backside. I also have the auto-tune cable connecting my AT-897 to the ACC port on the back of the FT-897D. This makes tuning the AT-897 really simple: just push the button on the AT-897 for a few seconds, the red light on the turner turns on, and the radio goes into a transmit stage automatically while the AT-897 seeks a match. This is a great solution for 60 meters. The coax cables for my three antennas are connected to a three position switch, 1 is my "Cobra Junior", 2 is my FC-40 random wire, and 3 is a resonate 75 meter dipole. To use the antennas: Antenna 1: (a "Cobra Junior") - I switch the cable switch to the first position and depress the AT-897's tune button. Antenna 2: (a 93 foot wire connected to the FC-40) - I switch the antenna selector to the second position; Tap the button on the AT-897 once quickly, which shuts off the AT-897 and passes everything through like it's not there; then I touch the TUNE button on the FT-897D (menu k or the F1 programmable key on my MH-59). Antenna 3: (75 meter dipole) - I simply switch the antenna selector to the third position and depress the tune button on the AT-897 once quickly. No tuning is required. The only quirky thing that seems to happen is with the AT-897... evidently touching the tune button is a toggle and it's sometimes hard to know what position it's in. If I get a HSWR when tuning my FC-40, I have to flip over to my first antenna, tune it first with the AT-897 and then flip back to the FC-40 and shut off the AT-897 as I described earlier. There doesn't appear to be any loop issues and signal reports are excellent for all antennas although comparisons between my "Cobra Junior" and my FC-40 on 40 meters always favor my FC-40 by about 2 "S" units. Regards, Paul KA6GEM |
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Re: FC-40, Control Cable Extension
paulcbg
Please see my eHam review of the FC-40 under Product Reviews/Antenna
Tuners. I reported that the control cable can be extended quite a bit: "Since I wired my shack with the control cable that accompanied the FC-40, I purchased an additional DIN control cable from the parts department of Yaesu and set it aside in my duffle bag for going portable. It is replacement part no. T9101543A and sells for $34.81 plus tax and shipping. This eight-pin "Mini-DIN" control cable appears to be similar to the Apple Macintosh serial printer cable for their ImageWriter printer but, like most bi-directional printer cables, one or two wires are crossed (pins 6 and 8 for the Apple) making it useless, as I discovered, for the FC-40. However, a Mini-DIN-8 extension cable (such as the ten foot male to female "Cablestogo.com" No. 09569) works very nicely, since the wires and pins are straight through. This kind of extension cord is becoming hard to find as printer cables are now USB. So far, I have extended the control cable to a total of 60 feet with no loss in performance. Regards, Paul KA6GEM --- In YaesuTuner@..., "Mike GU4EON" <gu4eon@c...> wrote: [mailto:YaesuTuner@...]On Behalf Of Rick Stirling |
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Re: FC-40, Control Cable Extension
Mike GU4EON
In GU we don't pay VAT and it's still 14.62 USD!
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PS and average house price 525000 usd! Must go, I hear violins playing in the background! ;-) Mike GU4EON -----Original Message-----
From: YaesuTuner@... [mailto:YaesuTuner@...]On Behalf Of Rick Stirling Sent: 08 December 2005 21:51 To: yaesutuner@... Subject: RE: [YaesuTuner] FC-40, Control Cable Extension That's VAT for you! ;-( Rick AE7RS On 12/8/2005 2:47:23 PM, Mike GU4EON (gu4eon@...) wrote: > Stange how "the same cable" costs 17.23 USD in EU! > > Mike GU4EON Yahoo! Groups Links |
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Re: FC-40, Control Cable Extension
Rick Stirling
That's VAT for you! ;-(
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Rick AE7RS On 12/8/2005 2:47:23 PM, Mike GU4EON (gu4eon@...) wrote:
Stange how "the same cable" costs 17.23 USD in EU! |
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Re: FC-40, Control Cable Extension
Mike GU4EON
Stange how "the same cable" costs 17.23 USD in EU!
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Mike GU4EON -----Original Message-----
From: YaesuTuner@... [mailto:YaesuTuner@...]On Behalf Of Rick Stirling Sent: 08 December 2005 13:45 To: yaesutuner@... Subject: RE: [YaesuTuner] FC-40, Control Cable Extension Here's the U.S. order page. In stock and only $7.00 ;-) 73, Rick AE7RS On 12/8/2005 1:23:53 AM, Mike GU4EON (gu4eon@...) wrote: > Try here guys > > a 5mtr extn > cable Yahoo! Groups Links |
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Re: FC-40 and Dipole?
Kyle N4NSS
I used fiberglass sticks which were used when I was keeping some small farm animals.? These sticks are four feet long.? I nailed one to each of the 4 inch by 4 inch posts of the 6 foot wood fence which goes around the back yard.? I put a wire just above the wood fence and another about two feet above that one.? These wires are both tied together at the far end.? The total lenght is around 200 feet.? I think that because the wires are spaced it might make the diameter of the wire thicker which give wider bandwith, like a cage antenna.? This tunes 160 thru 6 meters.? So far I don't have any contacts on 160.? I use it on all the other bands with very good results. gkstemple@... wrote:
Yahoo! Shopping Find Great Deals on Holiday Gifts at |
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Re: FC-40, Control Cable Extension
Rick Stirling
Here's the U.S. order page. In stock and only $7.00 ;-)
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73, Rick AE7RS On 12/8/2005 1:23:53 AM, Mike GU4EON (gu4eon@...) wrote:
Try here guys |
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Re: FC-40 and Dipole?
开云体育n4nss@... writes:
?
>My loop or as I call it, my electric fence antenna works on all bands
with no problem.
?
Great.? I'm considering trying one of these next spring on a visit to
my folks, who have one around their garden.? The fence charger is not
needed in daylight.
?
Could you provide more details -- length?, height above ground?,
more-or-less level terrain?, etc.???
?
I wasn't thinking of the greater-than-a-full-wavelength on 160 meters L
O? O? O N? N G G wire, but if it's up, insulated and not
energized for other purposes at the time, why not?try it!!
?
73
Gary
KC9DJQ ? |
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Re: FC-40, Control Cable Extension
Mike GU4EON
开云体育Try
here guys
?
???
a 5mtr extn cable
?
Seasons Greeting
?
Mike
GU4EON
?
Not
sure on max length though.
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Re: FC-40 and Dipole?
Kyle N4NSS
My loop or as I call it, my electric fence antenna works on all bands with no problem. gkstemple@... wrote:
Kyle W. Jeske??? N4NSS?@?arrl dot net
Licensed since 1966.
Level III Certified ARECC, Skywarn Advanced
FISTS: #9760??Grid: EL87qu 27.843927N ??? -82.642812W??
Backpacker, QRP, Antennas, and Stealth?Antennas
My site: ?
Yahoo! Personals Single? There's someone we'd like you to meet. Lots of someones, actually. |
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Re: FC-40, Control Cable Extension
Hanno, DG8JZ
Hi all,
I had the same problem a few month ago, looked around, found the old Mac cables stateside for a very high price. So... Bought the connector (male and female), 15 m cable and used my old sondering iron... And after 1 hour I had my cable. It works perfect as extention and in total I do have 20m of remote cabel betwen FT 897 (/ 857 and FC 40 Greetings from Munich ----------------------------- Hanno Vogels, DK3HV eMail: hanno@... WIRES. #7124D Echolink: #4904 phone: +49 8102 729600 fax: +49 8102 729655 -----Ursprüngliche Nachricht----- Von: YaesuTuner@... [mailto:YaesuTuner@...] Im Auftrag von hb9fbn Gesendet: Mittwoch, 7. Dezember 2005 19:21 An: YaesuTuner@... Betreff: [YaesuTuner] FC-40, Control Cable Extension Hi All, I refer to the FC-40 Control Cable which is just 5 meters long (abt. 16/17 feet). It is an 8 poles shielded cable straight wired, ended with 2x mini-Din8 plugs. I wonder how long can it be extended without to cause interferences/malfunctions to the FC-40 respectively to the FT857/897. Yaesu/Vertex don't say a word about it. I wonder if someone has done such an extension as well as where he found the extension cable (maybe in Mac "old" serial cables, unfortunately hard to find in EU), or perhaps just cutting the original cable and extending it by means of shielded connectors and a random lenght of shielded 8 poles cable? Many thanks in advance for any possible suggestion! I apologize for "my" english :o) Best 73 de Enrico - HB9FBN ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page --------------------------------------------------------------------~-> Yahoo! Groups Links |
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FC-40, Control Cable Extension
hb9fbn
Hi All,
I refer to the FC-40 Control Cable which is just 5 meters long (abt. 16/17 feet). It is an 8 poles shielded cable straight wired, ended with 2x mini-Din8 plugs. I wonder how long can it be extended without to cause interferences/malfunctions to the FC-40 respectively to the FT857/897. Yaesu/Vertex don't say a word about it. I wonder if someone has done such an extension as well as where he found the extension cable (maybe in Mac "old" serial cables, unfortunately hard to find in EU), or perhaps just cutting the original cable and extending it by means of shielded connectors and a random lenght of shielded 8 poles cable? Many thanks in advance for any possible suggestion! I apologize for "my" english :o) Best 73 de Enrico - HB9FBN |
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Re: FC-40 and Dipole?
开云体育In a message dated 12/6/2005 7:11:12 AM Central Standard Time,
pewomail@... writes:
?
>I'm new to ham radio and plan to buy some equipment soon (Xmax's
>comming up ;-) ?
I have the FT-857D and the FC-40, no experience with the Buddipole.
?
>FC-40, I'm wondering if I can use it to fine-tune a dipole
antenna.
?
The FC-40 will work with random wires, dipoles, loops and other
configurations of wire antennas, BUT there is probably no single wire length
that will allow operation on ALL bands.? There is no "free lunch" involved
-- shorter antennas WILL be much less efficient radiators (and receivers) on the
80 and 160 meter bands, even with a perfect "match" by the FC-40.
?
As I understand the Buddipole, (from reading only) one is able to change
coils to change bands, and match to different frequencies within the band by
means of movable taps on the coil.? How far "out of (coil) band" one might
be able to venture with the FC-40 is something you might want to email the
Buddipole folks about.?
?
>I gather there is a difference between balanced and un-balanced
>antennas; let me see if I get this straight: since solid-state >transceivers feature unbalanced final stages, it is desireable to >insert a balun between the radio and the dipole, which is a balanced >antenna (I guess this is to avoid currents on the outer side of the >coax cable). The FC-40's output is geared towards wire antennas and is >probably un-balanced, right!? ?
The Coax feed from the FT-857-D is unbananced into the FC-40.? The
FC-40 is expecting to feed a balanced antenna -- one side hot, one to
ground/counterpoise.? In the (in my experience) LIKELY event that you are
experienceing RF on the coax, line isolaters (see radioworks.com or others -- no
I don't work for them) will eliminate that problem.? Some snap-on ferrites
can be used on the supplied 16-foot control cable between the CAT port of the
FT-857D and the FC-40 to preculde RF pickup on the control line.
?
The FC-40, and the similar-function products by SGC,?are more
properly termed "antenna couplers" and are located?at or very
near?(fewer inches are better) the antenna feed point.
?
Some other products, more properly called "tuners" sit at/near the
operating position and may not require a CAT connetion.? Additionally, some
feed out with coax.
?
Yaesu sends one 16' control cable that must be connected between the CAT
ports on the radio and the FC-40 (extensions of 16' length are about $35US from
Yaesu).? OK for mobile installations, but for fixed use one will probably
need more control cable length (remember to use ferrites to avoid RF
pickup).? With the FC-40 plugged into the CAT port?of the FT-857D,
there is no provision for using?a?computer to control the
transciver.?
Hope this helps with your decision.
?
73.
Gary
? |
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FC-40 and Dipole?
pewomail
Hi everybody,
I'm new to ham radio and plan to buy some equipment soon (Xmax's comming up ;-) I was thinking FT-857D and Buddipole; since many package-deals shave 50% off of a FC-40, I'm wondering if I can use it to fine-tune a dipole antenna. I gather there is a difference between balanced and un-balanced antennas; let me see if I get this straight: since solid-state transceivers feature unbalanced final stages, it is desireable to insert a balun between the radio and the dipole, which is a balanced antenna (I guess this is to avoid currents on the outer side of the coax cable). The FC-40's output is geared towards wire antennas and is probably un-balanced, right!? (1) Can you comment on the use of the FC-40 with a dipole antenna (and the Buddipole in particular). (2) How is the LDG Z11Pro tuner different from the FC-40. Your help is appreciated! Thanks, Wolf |
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Re: experience in the field
kc9anq
On the 540 foot loop I made for field day I used 25 foot of ladder
line from the tuner to the wire for my loop,,,,was 25 foot enough? GOT ME but it worked well and I used it on several bands that day. I only used 25 foot because I mounted the FC-40 on the tree next to my tent and 25 foot was all the higher I could get the loop,,,,well I was lazy I could have got it higher but ,,,well we all know how hot the summer was here in the midwest this year,,,,I took what I could get =) --- In YaesuTuner@..., "ab1ff" <ab1ff@y...> wrote: said it should be fine. It worked well except for the QSB which Ibelieve came from excessive SWR.newbbie to the world of tuners and wire antennas. Thanks. |
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