?

----- Original Message -----

From: Eric

To: YaesuTuner@...

Sent: Monday, April 27, 2009 4:39 AM

Subject: [YaesuTuner] Re: Alternatives to the FC-40

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.

WN9E

--- In YaesuTuner@yahoogroups.com, "w6gq@..." wrote:
>
> The FC-40 will tune a loop, I made a 160 meter loop for field day and it worked just fine
>
>
> --- In YaesuTuner@yahoogroups.com, raimo ilkka wrote:
> >
> > How you can be sure that FC40 does not tune loops ?
> > 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 wrote:
> >
> > > From: Zack
> > > Subject: [YaesuTuner] Alternatives to the FC-40
> > > To: YaesuTuner@yahoogroups.com
> > > Date: Wednesday, 10 December, 2008, 7:51 PM
> > > 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
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
>

The FC-40 will tune a loop, I made a 160 meter loop for field day and it worked just fine


--- In YaesuTuner@..., raimo ilkka <oh6bi@> wrote:

How you can be sure that FC40 does not tune loops ?
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@>
Subject: [YaesuTuner] Alternatives to the FC-40
To: YaesuTuner@...
Date: Wednesday, 10 December, 2008, 7:51 PM
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



------------------------------------

Yahoo! Groups Links

How you can be sure that FC40 does not tune loops ?
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@...>
Subject: [YaesuTuner] Alternatives to the FC-40
To: YaesuTuner@...
Date: Wednesday, 10 December, 2008, 7:51 PM
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



------------------------------------

Yahoo! Groups Links

From: Zack <vtnn43e@...>
Subject: [YaesuTuner] Alternatives to the FC-40
To: YaesuTuner@...
Date: Wednesday, 10 December, 2008, 7:51 PM
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



------------------------------------

Yahoo! Groups Links

--- In YaesuTuner@yahoogroups.com, JD Baillie wrote:
>>> The tuner (coupler) should not need a counterpoise just a good
ground. That's why it is called a random wire length tuner. The tuner
should also be length insensitive (to a point - it won't tune a loop).
'73, JD, VA7BTL<<<

That is true about the ground. A counterpoise, however, will help in
antenna efficiency (an antenna in seawater is a whole different
story). This is also mentioned in SGC's own website
"".
And, while the coupler (and all similar auto couplers) SHOULD be
"length insensitive", they are not. That's why it JR should try adding
or subtracting the length. BTW, the FC-40 and others will tune loops.
I'm using a 205' hybrid delta loop right now with my AH-4 coupler
(with no ground rod).
73, Jeff/wb0m

I thought the rebar was to far from
> the tuner so I drove a 5 foot chunk of copper pipe into the ground
> right below the tuner. Testing afterward showed that I could only
> tune 20 meters through 6 meters. I am baffled by this. Clearly the
> copper tube and shorter ground wire should function better that the
> rebar and 15 feet of wire or is the long ground wire to the rebar
> acting like a counterpoise?

You have a good ground now, but a counterpoise is also needed. Add as
much wire as possible in the crawl space, but a couple of wire as far
apart as possible as long as possible in all directions of possible
(check a counterpoise diagram for any vertical antenna and you'll get
the idea). You will also need to add or subtract wire from your
antenna. Here's some "favorable" wire lengths from the AH-4 reflector,
with the range parenthesis.
40' (35-44)
58' (52-64)
76' (70-81)

73, Jeff/wb0m

----- Original Message -----

From: kb5oze

To: YaesuTuner@...

Sent: Tuesday, December 30, 2008 12:47 PM

Subject: [YaesuTuner] Re: Coax and output wire size + 80 meters

JR,
I have also run the FC-40 as well as SGCs' and SEA couplers. One
thing I have noticed is that the couplers sometimes have a problem
with 1/2 wavelength wires. I would either take off about 10' of wire
or add about 10' of wire on the radiating element. I have run the FC-
40 with a 9' whip and also with 48' of wire with pretty good success.

Let us know how it works out.

Thanks,

Mike-KB5OZE

--- In YaesuTuner@yahoogroups.com, "jay_hendershott"
wrote:
>
> Thanks for all the helpful information. I have found a combination
> that works pretty well although I still cannot tune 75/80 meters.
I
> am really baffled though about the current ground setup. The
ground
> I have in plave is the original 4' long rebar. It is approximately
> 15 feet away from the tuner with a 12 guage wire running from the
> tuner to the rebat. I am able to tune 160, 40, 20 up to 6 meters.
I
> can not tune 80 or 30 meters. I thought the rebar was to far from
> the tuner so I drove a 5 foot chunk of copper pipe into the ground
> right below the tuner. Testing afterward showed that I could only
> tune 20 meters through 6 meters. I am baffled by this. Clearly
the
> copper tube and shorter ground wire should function better that the
> rebar and 15 feet of wire or is the long ground wire to the rebar
> acting like a counterpoise? I tried running counterpoises with the
> copper pipe but they seemed to make no difference. I am limited on
> counterpoise because the tuner is located in my crawl space. It
> would not be easy for me to move the tuner outside. I made a few
> contacts over the weekend, one being a station in Tokyo, Japan so I
> cannot complain but I would like to get 75/80 meters back. One
> poster noted the addition of a capacitior in series with the output
> wire. How should I determine size and rating of the capacitior?
> Again thanks for the help, it has been a learning experience so
far.
>
> --- In YaesuTuner@yahoogroups.com, "wb0m" wrote:
> >
> > Is there anyway to move the coupler outside the house? Your
antenna
> > starts at the coupler, which means you are probably getting RFI
and
> > such from a couple of thing: your antenna is radiating next to
all
> the
> > wires in the house and your ground my not be sufficient. Is the
> ground
> > rod driven into the dirt? And copper will work better than rebar.
> > Your long wire antenna sounds fine in length, but you still need a
> > counterpoise of some sort. Also, there my be high voltage at the
end
> > of the antenna so if anyone can come in contact with it, you might
> > move it up out of the way. - Jeff/wb0m
> >
> >
> >
> >
> > --- In YaesuTuner@yahoogroups.com, "jay_hendershott"
> wrote:
> > The antenna starts off at the corner of my
> > > fence which is about 5' up from the ground. It then runs
> straight to
> > > the top peak of my house which is about 30'+ high. This run is
> about
> > > 65'. The wire passes through a ceramic insulator then it comes
> down
> > > to the left corner of my house were it is looped in a ceramic
> > > insulator. It then passes through the wall to the tuner which
is
> > > inside the crawl space. The tail from the insulator to the
tuner
> is
> > > about 14 inches long. I have buried a 4' long piece of rebar
> into the
> > > moist dirt of the crawl space. I attached a ground rod lug and
a
> > > piece of 12 guage wire from the tuner to the lug. One question
I
> have
> > > , does distance from ground rod to tuner matter? After some
> testing
> > > last night I confirmed again that I cannot tune 80 or 30
meters.
> I
> > > have also picked up rfi in one tv and the surround sound of
> another.
> > > This was not a problem with my OCF. Hope this helps, I will be
> > > experimenting more today. Thanks again.
> > >
> > > 73
> > >
> > > JR
> > >
> > >
> > > > Hi JR,
> > > > You shouldn't have to do anything to the tuner. This tuner,
> or more
> > > > accurately, antenna coupler, is a great tuner when used
> correctly
> > > > (similar to Icom's AH-4. and SCG couplers).
> > > > We need more info on your antenna. You said you're have
about
> 90'of
> > > > wire, but how is it set up, i.e. long wire, inverted L, etc.)
> and most
> > > > importantly, what are you using for a counterpoise?
> > > > And the coax is fine. The SWR from the tuner to your radio
> will
> > > > (almost) always be around 1.5 to 1 so loss should low, even
with
> > > > longer lengths.
> > > > I will also e-mail a PDF on antenna's from the SCG company.
> It's very
> > > > good reading. I use an AH-4 with a vertical loop, about 200'
of
> wire.
> > > > Keep asking questions and we'll help. 73, Jeff/wb0m
> > > >
> > >
> >
>

----- Original Message -----

From: jay_hendershott

To: YaesuTuner@...

Sent: Monday, December 29, 2008 9:21 PM

Subject: [YaesuTuner] Re: Coax and output wire size + 80 meters

Thanks for all the helpful information. I have found a combination
that works pretty well although I still cannot tune 75/80 meters. I
am really baffled though about the current ground setup. The ground
I have in plave is the original 4' long rebar. It is approximately
15 feet away from the tuner with a 12 guage wire running from the
tuner to the rebat. I am able to tune 160, 40, 20 up to 6 meters. I
can not tune 80 or 30 meters. I thought the rebar was to far from
the tuner so I drove a 5 foot chunk of copper pipe into the ground
right below the tuner. Testing afterward showed that I could only
tune 20 meters through 6 meters. I am baffled by this. Clearly the
copper tube and shorter ground wire should function better that the
rebar and 15 feet of wire or is the long ground wire to the rebar
acting like a counterpoise? I tried running counterpoises with the
copper pipe but they seemed to make no difference. I am limited on
counterpoise because the tuner is located in my crawl space. It
would not be easy for me to move the tuner outside. I made a few
contacts over the weekend, one being a station in Tokyo, Japan so I
cannot complain but I would like to get 75/80 meters back. One
poster noted the addition of a capacitior in series with the output
wire. How should I determine size and rating of the capacitior?
Again thanks for the help, it has been a learning experience so far.

--- In YaesuTuner@yahoogroups.com, "wb0m" wrote:
>
> Is there anyway to move the coupler outside the house? Your antenna
> starts at the coupler, which means you are probably getting RFI and
> such from a couple of thing: your antenna is radiating next to all
the
> wires in the house and your ground my not be sufficient. Is the
ground
> rod driven into the dirt? And copper will work better than rebar.
> Your long wire antenna sounds fine in length, but you still need a
> counterpoise of some sort. Also, there my be high voltage at the end
> of the antenna so if anyone can come in contact with it, you might
> move it up out of the way. - Jeff/wb0m
>
>
>
>
> --- In YaesuTuner@yahoogroups.com, "jay_hendershott"
wrote:
> The antenna starts off at the corner of my
> > fence which is about 5' up from the ground. It then runs
straight to
> > the top peak of my house which is about 30'+ high. This run is
about
> > 65'. The wire passes through a ceramic insulator then it comes
down
> > to the left corner of my house were it is looped in a ceramic
> > insulator. It then passes through the wall to the tuner which is
> > inside the crawl space. The tail from the insulator to the tuner
is
> > about 14 inches long. I have buried a 4' long piece of rebar
into the
> > moist dirt of the crawl space. I attached a ground rod lug and a
> > piece of 12 guage wire from the tuner to the lug. One question I
have
> > , does distance from ground rod to tuner matter? After some
testing
> > last night I confirmed again that I cannot tune 80 or 30 meters.
I
> > have also picked up rfi in one tv and the surround sound of
another.
> > This was not a problem with my OCF. Hope this helps, I will be
> > experimenting more today. Thanks again.
> >
> > 73
> >
> > JR
> >
> >
> > > Hi JR,
> > > You shouldn't have to do anything to the tuner. This tuner,
or more
> > > accurately, antenna coupler, is a great tuner when used
correctly
> > > (similar to Icom's AH-4. and SCG couplers).
> > > We need more info on your antenna. You said you're have about
90'of
> > > wire, but how is it set up, i.e. long wire, inverted L, etc.)
and most
> > > importantly, what are you using for a counterpoise?
> > > And the coax is fine. The SWR from the tuner to your radio
will
> > > (almost) always be around 1.5 to 1 so loss should low, even with
> > > longer lengths.
> > > I will also e-mail a PDF on antenna's from the SCG company.
It's very
> > > good reading. I use an AH-4 with a vertical loop, about 200' of
wire.
> > > Keep asking questions and we'll help. 73, Jeff/wb0m
> > >
> >
>

fence which is about 5' up from the ground. It then runs straight to
the top peak of my house which is about 30'+ high. This run is about
65'. The wire passes through a ceramic insulator then it comes down
to the left corner of my house were it is looped in a ceramic
insulator. It then passes through the wall to the tuner which is
inside the crawl space. The tail from the insulator to the tuner is
about 14 inches long. I have buried a 4' long piece of rebar into the
moist dirt of the crawl space. I attached a ground rod lug and a
piece of 12 guage wire from the tuner to the lug. One question I have
, does distance from ground rod to tuner matter? After some testing
last night I confirmed again that I cannot tune 80 or 30 meters. I
have also picked up rfi in one tv and the surround sound of another.
This was not a problem with my OCF. Hope this helps, I will be
experimenting more today. Thanks again.

73

JR

Hi JR,
You shouldn't have to do anything to the tuner. This tuner, or more
accurately, antenna coupler, is a great tuner when used correctly
(similar to Icom's AH-4. and SCG couplers).
We need more info on your antenna. You said you're have about 90'of
wire, but how is it set up, i.e. long wire, inverted L, etc.) and most
importantly, what are you using for a counterpoise?
And the coax is fine. The SWR from the tuner to your radio will
(almost) always be around 1.5 to 1 so loss should low, even with
longer lengths.
I will also e-mail a PDF on antenna's from the SCG company. It's very
good reading. I use an AH-4 with a vertical loop, about 200' of wire.
Keep asking questions and we'll help. 73, Jeff/wb0m