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Alternatives to the FC-40
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Zack
There are alternatives to the FC-40 tuner. I have a huge loop with an
apex around 75 feet up in a tree. My SG-239 will tune all frequencies from 160-10 meters. It has operated flawlessly at my QTH with temps ranging from 10F-95F. The SG-239 is mounted about 75 feet from my rig and is fed with Davis Buryflex coax. You may want to take a look at the SG-239 from SGC. Lets look at a few reasons why you may want one. 1 It will tune a long wire with radials and loops. The FC-40 will not tune a loop. 2 The SG-239 does not need a control line for the rig but the FC-40 does. This makes installation much easier. I bought some buryable wire for 120 volts (but carries 12v for the tuner) and ran it out to my tuner which is in a waterproof electrical box that I got on ebay for $15.00. SGC makes a device that lets you run DC over the coax going to the tuner. It costs $160 so that is why I went with the buryable wire for DC. 2 It costs $195.99 from AES and the FC-40 costs $250.00. 4 The only disadvantages to the SG-239 is that it needs to be put in a waterproof box. And it will not tune 6 meters. 5 It will handle 80 watts for 100% duty cycle (CW & RTTY) but the FC- 40 will do 100. Not really a very big difference for the guy at the other end of you signal. For a real sweet antenna you could install one of these and put the SG-239 at the base of it and get coverage from 160-10 meters. My bet is that it would outperform any vertical from GAP, Cushcraft or the like. Having a tuner at the base of the antenna makes it a lot more efficient. BTW, there is a Yahoo group devoted to the line of SGC tuners. I have photos there of an SG-237 installation but it now has a SG-239 in it. ; Zack N8FNR _______________________________________________________ Here are the SG-239 specs. HF Frequency Range: 1.8-30 MHz Power Input Range: 1.5-200 watts (PEP) Or CW duty cycle 40% Number of channels: unlimited Revolving memory bins: 165 TX; 5 RX Input Impedance Range: .2-5000 ohms VSWR: (Typical) Typically less than 2:1 DC Input Requirement: +13.8 VDC (nominal) DC Operating Range: +10 to 18.5 VDC Input Current: Average: 230 milliamps Random set time: Typical: less than 2 seconds Recurrent set time: Typical: less than 10 milliseconds Antenna Length: Minimum length of 9 ft. - 7 to 30 MHz Minimum length of 40 ft.-3 to 30 MHz Minimum length of 100 ft. - 1.8-30 MHz Installation: Any position Operating Temperature: -35° to +70°C Size: 7.5"L x 6"W x 1.85"H (19cm x 15cm x 4.5cm) Weight: 2 pounds Case Construction: Irradiated aluminum case Control Cable Standard coaxial and 2 wires for DC plus 2 (not supplied) wires for optional SmartLock gauge 14-18 Antenna types: 1. Whip 2. Backstay (marine, sail) 3. Dipole centerfed 4. Dipole with feedline 5. Loop (small) 2x2 multi turn 6. Loop (large) 10 ft. and up single turn 7. Longwire 8. Ladder feed |
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raimo ilkka
How you can be sure that FC40 does not tune loops ?
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Is there something different than Icom products like AH4 , AH3 etc. They can tune loops very well. I have AH3 and FC40, I have done some loop testings with AH3, not yet with FC40. Goeing to do that. 73s de rami, oh6bi --- On Wed, 10/12/08, Zack <vtnn43e@...> wrote:
From: Zack <vtnn43e@...> |
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w6gq@ymail.com
The FC-40 will tune a loop, I made a 160 meter loop for field day and it worked just fine
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--- In YaesuTuner@..., raimo ilkka <oh6bi@...> wrote:
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I agree with this. I've got an FC-40 and it will tune a loop just fine. Actually, when I tested it, it tuned a full wave 80 meter loop on all bands 80 and above.
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WN9E --- In YaesuTuner@..., "w6gq@..." <w6gq@...> wrote:
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开云体育i have a fc1000 ... it is almost like the fc40 ....
i had some spare room in it to put a 1:4 balun in
now i have a ladderline output on it (switchable)
it tunes dipoles and loops very easy
just my 2 cents
dg9bfc
sigi
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