开云体育

闯ü谤驳别苍,
Very interesting... I also look forward to test my setup with the FC40, the
Spieth pole and one of the radios FT 857 or / and 897. During summer
vacation. Do you have extension cable for the remote controller? I think the
cable between radio an FC 40 is short. I have produced my own extension
cable 15m and in total I can use 20m with the original one. No prpblem for
the tuning finction, but some HF cause problems for some "automatic"
retuning of the FC 40.
Greetings from Munich


-----------------------------
Hanno Vogels, DK3HV
eMail: hanno@...
phone: +49 8102 729600
fax: +49 8102 729655





-----Ursprüngliche Nachricht-----
Von: YaesuTuner@... [mailto:YaesuTuner@...] Im
Auftrag von dj5hd
Gesendet: Montag, 20. Februar 2006 14:09
An: YaesuTuner@...
Betreff: [YaesuTuner] On Vacation with a FC-40/FT-897 in 3B8

Dear all,

I am just back from a vacation to 3B8, Mauritius and want to share my
experience with the FC-40:
I had a small bungaloo with space for an antenna and checked this in advance
with the hotel.
In the back there was an unused metal frame made of scaffolding tubes, about
10 by 15m in size, 3m high. I had a 12m tall fiberglass fishing rod like
tower (SPIDERBEAM), which I fixed to one of the tubes. A wire ran from the
top of the rod down to 1m above the ground, where the FC-40 was mounted. The
metal frame gave a good earth counterpoise, however I laid out some 4
radials, between 20m and 5m long. Also found a metal waterpipe nearby which
I also connected to one of the ground wires.

Tuning the FC-40 was really a charm and done by pressing the TUNE button for
1 sec. I just had to do this once for the operating frequencies. Even in
receive, the tuner follows the VFO. For tuning, the output power is
automatically reduced to QRP, so you do not cause too much QRM and high
voltages and currents in the tuner are avoided.

The FC-40 did not find a match on 160m and 30m. I think the reasons were too
low resistance for 160m, wire too short and too high for 30m, wire lenght
close to lambda/2. On all other bands, the SWR at the TRX was nearly 1:1.

I worked mostly 40m cw in the evenings and had great pile ups from Europe
and JA, also VK and US. A sked with DL worked in SSB on 20m and 15m,
reported true 59. Overall, I had 676 QSOs.

The combination FC-40/FT-897 (FP-30 built in) and a fberglass pole is my
favorite for travel. No need of finding supports for dipoles and you can QSY
on the fly.

I used a SGC-237 Smarttuner before and was not very lucky with it. It was
hard to find a working wire length and the 237 intended to re-tune in the
middle of a transmission, even if the SWR was fine. This is particularly not
good if you transmit at 100W, it can destroy the tuner. This can be avoided
with an external "SmartLock" circuit, but I think it should not be
necessary. Also, the Smarttuner does not follow in RX mode, you have to
transmit in order to tune and you better reduce the power while tuning!

I hope this is informative,

vy73, Jurgen, DJ5HD






Yahoo! Groups Links

Dear all,

I am just back from a vacation to 3B8, Mauritius and want to share my
experience with the FC-40:
I had a small bungaloo with space for an antenna and checked this in
advance with the hotel.
In the back there was an unused metal frame made of scaffolding tubes,
about 10 by 15m in size, 3m high. I had a 12m tall fiberglass fishing
rod like tower (SPIDERBEAM), which I fixed to one of the tubes. A wire
ran from the top of the rod down to 1m above the ground, where the
FC-40 was mounted. The metal frame gave a good earth counterpoise,
however I laid out some 4 radials, between 20m and 5m long. Also found
a metal waterpipe nearby which I also connected to one of the ground
wires.

Tuning the FC-40 was really a charm and done by pressing the TUNE
button for 1 sec. I just had to do this once for the operating
frequencies. Even in receive, the tuner follows the VFO. For tuning,
the output power is automatically reduced to QRP, so you do not cause
too much QRM and high voltages and currents in the tuner are avoided.

The FC-40 did not find a match on 160m and 30m. I think the reasons
were too low resistance for 160m, wire too short and too high for 30m,
wire lenght close to lambda/2. On all other bands, the SWR at the TRX
was nearly 1:1.

I worked mostly 40m cw in the evenings and had great pile ups from
Europe and JA, also VK and US. A sked with DL worked in SSB on 20m and
15m, reported true 59. Overall, I had 676 QSOs.

The combination FC-40/FT-897 (FP-30 built in) and a fberglass pole is
my favorite for travel. No need of finding supports for dipoles and
you can QSY on the fly.

I used a SGC-237 Smarttuner before and was not very lucky with it. It
was hard to find a working wire length and the 237 intended to re-tune
in the middle of a transmission, even if the SWR was fine. This is
particularly not good if you transmit at 100W, it can destroy the
tuner. This can be avoided with an external "SmartLock" circuit, but I
think it should not be necessary. Also, the Smarttuner does not follow
in RX mode, you have to transmit in order to tune and you better
reduce the power while tuning!

I hope this is informative,

vy73, Jurgen, DJ5HD

photos
posted. Will add better ones as soon as I can showing more detail,
these are done in a 5mins break!

Hi Kyle, sorry long delay - work issues in the office -

Basically, connect a balanced feedline (openwire, ladderline) but NOT
coax to the ATU. One side to the wire connector, the other to ground.

I have to tell you, this works REALLY well, and can tune up on all
bands. I don't own or have access to antenna analyser, or GDO, or
regular tuner like MFJ (YET!) but I've seen other posts about using
loops and thought I'd try it -worst that could happen is that you
can't tune, and next worst is that you burn all yr power in the tuner-

In reality, the horizontal loop *should* have impedance between 102
and a few hundreds of ohms - but if the loop isn't resonant then its
a problem. (Thats what I had to start with).

The loop is now close to 270ft (81.6 metres) but I still need to trim
it a bit - lack of time still-

I'm going to TRY and post some pictures so lets see if that helps you
see what I'm doing.

Spectrum analyser shows that there's nothing bad going on, and I'm so
far not causing QRM or QRI to anything I can find, even at 100w SSB
on any band from 80-6 (!)

I've also made a smaller version as a tuned loop on 2m to understand
the concept more - without matching, its giving swr 1:1.7 from 144-
146mhz. I'm going to make a 1/4wave 75ohm stub match during next days
to see how low the loop swr really goes when its matched properly,
and to see what the VSWR 1:2 bandwidth is. That will help me
understand whats happening in the bigger HF loop. I'm thinking of
making a tuned loop for dedicated 20m that is 2 wavelengths long and
play with it.... starting with experiments on a 6m loop that is more
manageable!


Cheers
Clive




--- In YaesuTuner@..., Kyle N4NSS <n4nss@...> wrote:

The FC-40 is a wire tuner. what are you doing with the other side

of the 300 ohm line?

Clive <l81ker@...> wrote: Hi folks, after moving to FINLAND where

its very cold now, I put up a

longwire loop of approx 84 metres of wire. Its fed with 300-ohms
radioshack line.

The tuner WON'T tune this on the lower bands (but its fantastic on
20m.)

I'm going to try shortening the loop slightly to around 81m, but
before that has anyone got any advice? Why is the SWR so high for

the

tuner?

Antenna is about 5m up, and the feedline is about 4.5m.

Ground here is solid granite rock... hence the loop!

Cheers
Clve4






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---------------------------------
Bring words and photos together (easily) with
PhotoMail - it's free and works with Yahoo! Mail.

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the YaesuTuner
group.

File : /hamadf.exe
Uploaded by : ab9lx <ab9lx@...>
Description : Direct your beam. Enter your latitude and longitude and then just click the location your looking for and point the beam

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

ab9lx <ab9lx@...>

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the YaesuTuner
group.

File : /mh-59a8j.pdf
Uploaded by : kc9anq <kc9anq@...>
Description : The optional MH-59A8J Remote Microphone provides control of the major functions of the FT-897 from the microphone's keypad. The MH-59A8J includes a rotary control knob for adjust the operating frequency and receiver audio volume level.

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


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---

Bring words and photos together (easily) with
- it's free and works with Yahoo! Mail.

Check out the excel spread sheet for the AH-4 long wire antenna
lengths in the file section of the group


--- In YaesuTuner@..., "Clive" <l81ker@y...> wrote:

Aha, so basically I hit smack in the midst of the next "bad"

point,

277ft (84.4m) to 283ft (86.25m) - my landlord is advertising for
rent the place adjoining mine, and he's already given the ok for

the

ham antenna, and cos he's showing the place I slung my wire up
without research or planning, and the longest bit to hand that
wasn't bright red or yellow/green happened to be that long :>]

Seems like I need to trim it to 270ft! (82.29m)

I'll try trimming it and see what happens next....


Keep you all informed and if success is my reward then I'll post
pics.

Cheers
Clive

OH/G1WZM aka 9V1AZ



--- In YaesuTuner@..., gkstemple@a... wrote:

In a message dated 1/23/2006 1:59:31 PM Central Standard Time,
l81ker@y... writes:

Hi folks, after moving to FINLAND where its very cold now, I

put

up a

longwire loop of approx 84 metres of wire. Its fed with 300-

ohms

radioshack line.

The tuner WON'T tune this on the lower bands (but its fantastic

on

20m.)

I'm going to try shortening the loop slightly to around 81m,

but

before that has anyone got any advice? Why is the SWR so high

for

the

tuner?

Antenna is about 5m up, and the feedline is about 4.5m.

Ground here is solid granite rock... hence the loop!

Cheers
Clve4



The short answer is "High Current."

Look at the AH-4 Graphical Wire Length Calculator in the files

section of

this group. Yes, the AH-4 is an Icom product, but it is the

wire

length that

is important, not the brand of tuner.
The file is in Xcel 2003. As is, it's set for dipole/long wire,

but the

constant is given for loops too.

Plug in the constant for loops and AVOID the lengths shown on

the

chart.

Try to find a length that has no data points on the graph.

Remember to start

long and trim slowly.

_
()

73
Gary
KC9DJQ

Aha, so basically I hit smack in the midst of the next "bad" point,
277ft (84.4m) to 283ft (86.25m) - my landlord is advertising for
rent the place adjoining mine, and he's already given the ok for the
ham antenna, and cos he's showing the place I slung my wire up
without research or planning, and the longest bit to hand that
wasn't bright red or yellow/green happened to be that long :>]

Seems like I need to trim it to 270ft! (82.29m)

I'll try trimming it and see what happens next....


Keep you all informed and if success is my reward then I'll post
pics.

Cheers
Clive

OH/G1WZM aka 9V1AZ



--- In YaesuTuner@..., gkstemple@a... wrote:

In a message dated 1/23/2006 1:59:31 PM Central Standard Time,
l81ker@y... writes:

Hi folks, after moving to FINLAND where its very cold now, I put

up a

longwire loop of approx 84 metres of wire. Its fed with 300-ohms
radioshack line.

The tuner WON'T tune this on the lower bands (but its fantastic

on

20m.)

I'm going to try shortening the loop slightly to around 81m, but
before that has anyone got any advice? Why is the SWR so high for

the

tuner?

Antenna is about 5m up, and the feedline is about 4.5m.

Ground here is solid granite rock... hence the loop!

Cheers
Clve4



The short answer is "High Current."

Look at the AH-4 Graphical Wire Length Calculator in the files

section of

this group. Yes, the AH-4 is an Icom product, but it is the wire

length that

is important, not the brand of tuner.
The file is in Xcel 2003. As is, it's set for dipole/long wire,

but the

constant is given for loops too.

Plug in the constant for loops and AVOID the lengths shown on the

chart.

Try to find a length that has no data points on the graph.

Remember to start

long and trim slowly.

_
()

73
Gary
KC9DJQ

开云体育

In a message dated 1/23/2006 1:59:31 PM Central Standard Time, l81ker@... writes:

Hi folks, after moving to FINLAND where its very cold now, I put up a
longwire loop of approx 84 metres of wire. Its fed with 300-ohms
radioshack line.

The tuner WON'T tune this on the lower bands (but its fantastic on
20m.)

I'm going to try shortening the loop slightly to around 81m, but
before that has anyone got any advice? Why is the SWR so high for the
tuner?

Antenna is about 5m up, and the feedline is about 4.5m.

Ground here is solid granite rock... hence the loop!

Cheers
Clve4

The short answer is "High Current."

?

Look at the AH-4 Graphical Wire Length Calculator in the files section of this group.? Yes, the AH-4 is an Icom product, but it is the wire length that is important, not the brand of tuner.

The file is in Xcel 2003.? As is, it's set for dipole/long wire, but the constant is given for loops too.

?

Plug in the constant for loops and AVOID the lengths shown on the chart.? Try to find a length that has no data points on the graph.? Remember to start long and trim slowly.

?

?

73

Gary

KC9DJQ?

Hi folks, after moving to FINLAND where its very cold now, I put up a
longwire loop of approx 84 metres of wire. Its fed with 300-ohms
radioshack line.

The tuner WON'T tune this on the lower bands (but its fantastic on
20m.)

I'm going to try shortening the loop slightly to around 81m, but
before that has anyone got any advice? Why is the SWR so high for the
tuner?

Antenna is about 5m up, and the feedline is about 4.5m.

Ground here is solid granite rock... hence the loop!

Cheers
Clve4

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the YaesuTuner
group.

File : /AH-4 Graphical Wire Length Calculator 2.2.xls
Uploaded by : kc9anq <kc9anq@...>
Description : Use this to calculate what lengths to avoid when puting up a long wire. This spread sheet was made by W4TME for the Icom AH-4 tuner. Antenna theory is Antenna Theory so this will work for the Yaesu FC-40. Just read the directions and DO NOT USE THE LENGHTS LISTED IN GREY WHITE AND RED THOSE ARE THE AVOIDED LENGTHS, USE THE "WIRE WINDOWS" ON THE CHART!

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

kc9anq <kc9anq@...>

---

Something to write home about. Just $16.99/mo. or less

Kyle,
The 5 turns did the trick and it is tuning great now, thanks for
your help!
N5DMT
Bob

--- In YaesuTuner@..., Kyle N4NSS <n4nss@y...> wrote:

Bob,
You could try two things:
1. Put about five turns of coax about 5 inches in diameter at

the base of the antenna.

2. Put a few turns ( 10 X 1" ) of #14 gage wire at the base of

the antenna.

I'm just guessing here but, good luck!

Bob Lancon <N5DMT@a...> wrote:
Kyle, thanks for the response. I did play with it a little last

night and noticed that it does tune from 7.050 to 7.200 but any
higher will produce high SWR.... I will try adding the Ground to
the base of the whip and see if this helps... When you say a few

turns of coil at the base of the antenna are you talking about

coiling the coax and making a choke? Again, thanks for the help.

N5DMT
Bob
--- In YaesuTuner@..., Kyle N4NSS <n4nss@y...> wrote:

The Ham Stick has inductance. Add a few turns of coil at the

base

of the antenna.

OR improve the bumper to chassis ground. or Both.

Make sure the tuner is close to the base of the antenna.


Bob Lancon <N5DMT@a...> wrote:
Just installed the Ft-857D, FC-40, Hustler bumper strap mount

and 102"

SS Whip in my truck. It works on all bands but 40 meters (high

SWR) I

have tried extra lenght of coax added to the supplied coax. I

have

added Ground cable from tuner to frame and still no luck.... I

did

put

a 40 meter Ham Stick on it and it tuned it no problem. Any

suggestions

would be appreciated.
Thanks
Bob





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---------------------------------
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Kyle, thanks for the response.? I did play with it a little last night and noticed that it does tune from 7.050 to 7.200 but any higher will produce high SWR....? I will try adding the Ground to the base of the whip and see if this helps...? When you say a few
turns of coil at the base of the antenna are you talking about coiling the coax and making a choke?? Again, thanks for the help.
N5DMT
Bob
--- In YaesuTuner@..., Kyle N4NSS wrote:
>
> The Ham Stick has inductance.? Add a few turns of coil at the base
of the antenna.
>?? OR improve the bumper to chassis ground. or Both.
>???
>?? Make sure the tuner is close to the base of the antenna.
>??
>
> Bob Lancon wrote:
>?? Just installed the Ft-857D, FC-40, Hustler bumper strap mount
and 102"
> SS Whip in my truck. It works on all bands but 40 meters (high
SWR) I
> have tried extra lenght of coax added to the supplied coax. I have
> added Ground cable from tuner to frame and still no luck.... I did
put
> a 40 meter Ham Stick on it and it tuned it no problem. Any
suggestions
> would be appreciated.
> Thanks
> Bob?
>
>
>
>
>????
> ---------------------------------
>?? YAHOO! GROUPS LINKS
>
>????
>???? Visit your group "YaesuTuner" on the web.
>????
>???? To unsubscribe from this group, send an email to:
>? YaesuTuner-unsubscribe@...
>????
>???? Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
>
>????
> ---------------------------------
>??
>
>??
>
>
> ????? ????? ?????
> ---------------------------------
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>? Ring in the New Year with Photo Calendars. Add photos, events,
holidays, whatever.
>

---

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Kyle, thanks for the response. I did play with it a little last
night and noticed that it does tune from 7.050 to 7.200 but any
higher will produce high SWR.... I will try adding the Ground to
the base of the whip and see if this helps... When you say a few
turns of coil at the base of the antenna are you talking about
coiling the coax and making a choke? Again, thanks for the help.
N5DMT
Bob
--- In YaesuTuner@..., Kyle N4NSS <n4nss@y...> wrote:

The Ham Stick has inductance. Add a few turns of coil at the base

of the antenna.

OR improve the bumper to chassis ground. or Both.

Make sure the tuner is close to the base of the antenna.


Bob Lancon <N5DMT@a...> wrote:
Just installed the Ft-857D, FC-40, Hustler bumper strap mount

and 102"

SS Whip in my truck. It works on all bands but 40 meters (high

SWR) I

have tried extra lenght of coax added to the supplied coax. I have
added Ground cable from tuner to frame and still no luck.... I did

put

a 40 meter Ham Stick on it and it tuned it no problem. Any

suggestions

would be appreciated.
Thanks
Bob





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






---------------------------------
Yahoo! Photos
Ring in the New Year with Photo Calendars. Add photos, events,

holidays, whatever.

Just installed the Ft-857D, FC-40, Hustler bumper strap mount and 102"
SS Whip in my truck. It works on all bands but 40 meters (high SWR) I
have tried extra lenght of coax added to the supplied coax. I have
added Ground cable from tuner to frame and still no luck.... I did put
a 40 meter Ham Stick on it and it tuned it no problem. Any suggestions
would be appreciated.
Thanks
Bob?

---

Yahoo! Photos
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Just installed the Ft-857D, FC-40, Hustler bumper strap mount and 102"
SS Whip in my truck. It works on all bands but 40 meters (high SWR) I
have tried extra lenght of coax added to the supplied coax. I have
added Ground cable from tuner to frame and still no luck.... I did put
a 40 meter Ham Stick on it and it tuned it no problem. Any suggestions
would be appreciated.
Thanks
Bob

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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