开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

Re: FC-40 Flexibility

 

If you have not bought the FC40 look at the SG230. A way better tuner. I have found the FC40 to be temperamental wrt wire lengths.

JD


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

On Wed, 2/4/15, kevin_thornsberry@... [YaesuTuner] <YaesuTuner@...> wrote:

Subject: [YaesuTuner] FC-40 Flexibility
To: YaesuTuner@...
Received: Wednesday, February 4, 2015, 7:45 AM


?









I'm really struggling to settle on
an antenna for my first HF rig.? I'm getting some good
input on a related post in the FT-450D
group.

group may be better for some of my more specific
questions.? From other posts in this group I think I've
confirmed that the FC-40 can tune a loop by attaching one
end to the antenna post and the other one to the grounding
lug even though they aren't addressed in the
documentation.? I'm starting with an attic installation
and think I could probably string out about 40 meters of
wire in the space I have.? What range of frequencies cold I
potentially tune with that length of loop?
It also appears that a doublet on ladder line
can be done in about the same way.
What about a conventional coax fed dipole??
Can that be tuned if attached to a balun?
The thing I like about these options is that I
don't think I would need to deal with a ground
connection like I would with a long wire antenna.
Thanks.?









#yiv1486178447 #yiv1486178447 --
#yiv1486178447ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}

#yiv1486178447 #yiv1486178447ygrp-mkp hr {
border:1px solid #d8d8d8;}

#yiv1486178447 #yiv1486178447ygrp-mkp #yiv1486178447hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}

#yiv1486178447 #yiv1486178447ygrp-mkp #yiv1486178447ads {
margin-bottom:10px;}

#yiv1486178447 #yiv1486178447ygrp-mkp .yiv1486178447ad {
padding:0 0;}

#yiv1486178447 #yiv1486178447ygrp-mkp .yiv1486178447ad p {
margin:0;}

#yiv1486178447 #yiv1486178447ygrp-mkp .yiv1486178447ad a {
color:#0000ff;text-decoration:none;}
#yiv1486178447 #yiv1486178447ygrp-sponsor
#yiv1486178447ygrp-lc {
font-family:Arial;}

#yiv1486178447 #yiv1486178447ygrp-sponsor
#yiv1486178447ygrp-lc #yiv1486178447hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}

#yiv1486178447 #yiv1486178447ygrp-sponsor
#yiv1486178447ygrp-lc .yiv1486178447ad {
margin-bottom:10px;padding:0 0;}

#yiv1486178447 #yiv1486178447actions {
font-family:Verdana;font-size:11px;padding:10px 0;}

#yiv1486178447 #yiv1486178447activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}

#yiv1486178447 #yiv1486178447activity span {
font-weight:700;}

#yiv1486178447 #yiv1486178447activity span:first-child {
text-transform:uppercase;}

#yiv1486178447 #yiv1486178447activity span a {
color:#5085b6;text-decoration:none;}

#yiv1486178447 #yiv1486178447activity span span {
color:#ff7900;}

#yiv1486178447 #yiv1486178447activity span
.yiv1486178447underline {
text-decoration:underline;}

#yiv1486178447 .yiv1486178447attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}

#yiv1486178447 .yiv1486178447attach div a {
text-decoration:none;}

#yiv1486178447 .yiv1486178447attach img {
border:none;padding-right:5px;}

#yiv1486178447 .yiv1486178447attach label {
display:block;margin-bottom:5px;}

#yiv1486178447 .yiv1486178447attach label a {
text-decoration:none;}

#yiv1486178447 blockquote {
margin:0 0 0 4px;}

#yiv1486178447 .yiv1486178447bold {
font-family:Arial;font-size:13px;font-weight:700;}

#yiv1486178447 .yiv1486178447bold a {
text-decoration:none;}

#yiv1486178447 dd.yiv1486178447last p a {
font-family:Verdana;font-weight:700;}

#yiv1486178447 dd.yiv1486178447last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}

#yiv1486178447 dd.yiv1486178447last p
span.yiv1486178447yshortcuts {
margin-right:0;}

#yiv1486178447 div.yiv1486178447attach-table div div a {
text-decoration:none;}

#yiv1486178447 div.yiv1486178447attach-table {
width:400px;}

#yiv1486178447 div.yiv1486178447file-title a, #yiv1486178447
div.yiv1486178447file-title a:active, #yiv1486178447
div.yiv1486178447file-title a:hover, #yiv1486178447
div.yiv1486178447file-title a:visited {
text-decoration:none;}

#yiv1486178447 div.yiv1486178447photo-title a,
#yiv1486178447 div.yiv1486178447photo-title a:active,
#yiv1486178447 div.yiv1486178447photo-title a:hover,
#yiv1486178447 div.yiv1486178447photo-title a:visited {
text-decoration:none;}

#yiv1486178447 div#yiv1486178447ygrp-mlmsg
#yiv1486178447ygrp-msg p a span.yiv1486178447yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}

#yiv1486178447 .yiv1486178447green {
color:#628c2a;}

#yiv1486178447 .yiv1486178447MsoNormal {
margin:0 0 0 0;}

#yiv1486178447 o {
font-size:0;}

#yiv1486178447 #yiv1486178447photos div {
float:left;width:72px;}

#yiv1486178447 #yiv1486178447photos div div {
border:1px solid
#666666;height:62px;overflow:hidden;width:62px;}

#yiv1486178447 #yiv1486178447photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}

#yiv1486178447 #yiv1486178447reco-category {
font-size:77%;}

#yiv1486178447 #yiv1486178447reco-desc {
font-size:77%;}

#yiv1486178447 .yiv1486178447replbq {
margin:4px;}

#yiv1486178447 #yiv1486178447ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg table {
font-size:inherit;font:100%;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg select,
#yiv1486178447 input, #yiv1486178447 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg pre, #yiv1486178447
code {
font:115% monospace;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg * {
line-height:1.22em;}

#yiv1486178447 #yiv1486178447ygrp-mlmsg #yiv1486178447logo {
padding-bottom:10px;}


#yiv1486178447 #yiv1486178447ygrp-msg p a {
font-family:Verdana;}

#yiv1486178447 #yiv1486178447ygrp-msg
p#yiv1486178447attach-count span {
color:#1E66AE;font-weight:700;}

#yiv1486178447 #yiv1486178447ygrp-reco
#yiv1486178447reco-head {
color:#ff7900;font-weight:700;}

#yiv1486178447 #yiv1486178447ygrp-reco {
margin-bottom:20px;padding:0px;}

#yiv1486178447 #yiv1486178447ygrp-sponsor #yiv1486178447ov
li a {
font-size:130%;text-decoration:none;}

#yiv1486178447 #yiv1486178447ygrp-sponsor #yiv1486178447ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}

#yiv1486178447 #yiv1486178447ygrp-sponsor #yiv1486178447ov
ul {
margin:0;padding:0 0 0 8px;}

#yiv1486178447 #yiv1486178447ygrp-text {
font-family:Georgia;}

#yiv1486178447 #yiv1486178447ygrp-text p {
margin:0 0 1em 0;}

#yiv1486178447 #yiv1486178447ygrp-text tt {
font-size:120%;}

#yiv1486178447 #yiv1486178447ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv1486178447


FC-40 Flexibility

 

I'm really struggling to settle on an antenna for my first HF rig.? I'm getting some good input on a related post in the FT-450D group.


?

This group may be better for some of my more specific questions.? From other posts in this group I think I've confirmed that the FC-40 can tune a loop by attaching one end to the antenna post and the other one to the grounding lug even though they aren't addressed in the documentation.? I'm starting with an attic installation and think I could probably string out about 40 meters of wire in the space I have.? What range of frequencies cold I potentially tune with that length of loop?


It also appears that a doublet on ladder line can be done in about the same way.


What about a conventional coax fed dipole?? Can that be tuned if attached to a balun?


The thing I like about these options is that I don't think I would need to deal with a ground connection like I would with a long wire antenna.


Thanks.

?


Re: FC-40 & Raingutter Antenna

 

Yeah - it stopped working again. I had disconnected it from my FT-897D and run a different antenna off a LDG-897Plus ATU for a week. Reconnecting, it fails to function. Full un-install, re-install, re-set DIPs, etc. And all bands HSWR - again.

I figured that, once it started working, that I'd hit on the magic combination of rubber chickens and wires that would stick. But no. I've never owned a more frustrating device.


Re: FC-40 & Raingutter Antenna

 

The FC40 is an odd duck tuner. POS comes to mind. Mine now sits on my shelf reminding me how much I like my SGC 230.
--------------------------------------------

On Sun, 9/7/14, bjessee@... [YaesuTuner] <YaesuTuner@...> wrote:

Subject: [YaesuTuner] Re: FC-40 & Raingutter Antenna
To: YaesuTuner@...
Received: Sunday, September 7, 2014, 9:01 AM


?









I switched to 107ft and 85ft random wires and still
wasn't having any luck. I switched out to a new
controller cables, added a lot of Mix 31 ferrite rods, and
added a second ground rod wired to AC service entry ground,
I added a few more counterpoise without success - no go. The
FT-897D just went into tuning mode for a second and then
displayed HSWR.

I switch my
FT-897D power supply from a FP-30B internal to a FP-1030A
external, so I could go portable, and the FC-40 is now
working from 6m - 40m. It takes a few seconds to tune, and
only indicated HSWR on 80M and 160m, which is no
surprise.Switching out between the FP-30B and FP-1030A
again, I can confirm that the FC-40 works with the external
but not the internal PS. Very odd...









#yiv9372458151 #yiv9372458151 --
#yiv9372458151ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}

#yiv9372458151 #yiv9372458151ygrp-mkp hr {
border:1px solid #d8d8d8;}

#yiv9372458151 #yiv9372458151ygrp-mkp #yiv9372458151hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}

#yiv9372458151 #yiv9372458151ygrp-mkp #yiv9372458151ads {
margin-bottom:10px;}

#yiv9372458151 #yiv9372458151ygrp-mkp .yiv9372458151ad {
padding:0 0;}

#yiv9372458151 #yiv9372458151ygrp-mkp .yiv9372458151ad p {
margin:0;}

#yiv9372458151 #yiv9372458151ygrp-mkp .yiv9372458151ad a {
color:#0000ff;text-decoration:none;}
#yiv9372458151 #yiv9372458151ygrp-sponsor
#yiv9372458151ygrp-lc {
font-family:Arial;}

#yiv9372458151 #yiv9372458151ygrp-sponsor
#yiv9372458151ygrp-lc #yiv9372458151hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}

#yiv9372458151 #yiv9372458151ygrp-sponsor
#yiv9372458151ygrp-lc .yiv9372458151ad {
margin-bottom:10px;padding:0 0;}

#yiv9372458151 #yiv9372458151actions {
font-family:Verdana;font-size:11px;padding:10px 0;}

#yiv9372458151 #yiv9372458151activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}

#yiv9372458151 #yiv9372458151activity span {
font-weight:700;}

#yiv9372458151 #yiv9372458151activity span:first-child {
text-transform:uppercase;}

#yiv9372458151 #yiv9372458151activity span a {
color:#5085b6;text-decoration:none;}

#yiv9372458151 #yiv9372458151activity span span {
color:#ff7900;}

#yiv9372458151 #yiv9372458151activity span
.yiv9372458151underline {
text-decoration:underline;}

#yiv9372458151 .yiv9372458151attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}

#yiv9372458151 .yiv9372458151attach div a {
text-decoration:none;}

#yiv9372458151 .yiv9372458151attach img {
border:none;padding-right:5px;}

#yiv9372458151 .yiv9372458151attach label {
display:block;margin-bottom:5px;}

#yiv9372458151 .yiv9372458151attach label a {
text-decoration:none;}

#yiv9372458151 blockquote {
margin:0 0 0 4px;}

#yiv9372458151 .yiv9372458151bold {
font-family:Arial;font-size:13px;font-weight:700;}

#yiv9372458151 .yiv9372458151bold a {
text-decoration:none;}

#yiv9372458151 dd.yiv9372458151last p a {
font-family:Verdana;font-weight:700;}

#yiv9372458151 dd.yiv9372458151last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}

#yiv9372458151 dd.yiv9372458151last p
span.yiv9372458151yshortcuts {
margin-right:0;}

#yiv9372458151 div.yiv9372458151attach-table div div a {
text-decoration:none;}

#yiv9372458151 div.yiv9372458151attach-table {
width:400px;}

#yiv9372458151 div.yiv9372458151file-title a, #yiv9372458151
div.yiv9372458151file-title a:active, #yiv9372458151
div.yiv9372458151file-title a:hover, #yiv9372458151
div.yiv9372458151file-title a:visited {
text-decoration:none;}

#yiv9372458151 div.yiv9372458151photo-title a,
#yiv9372458151 div.yiv9372458151photo-title a:active,
#yiv9372458151 div.yiv9372458151photo-title a:hover,
#yiv9372458151 div.yiv9372458151photo-title a:visited {
text-decoration:none;}

#yiv9372458151 div#yiv9372458151ygrp-mlmsg
#yiv9372458151ygrp-msg p a span.yiv9372458151yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}

#yiv9372458151 .yiv9372458151green {
color:#628c2a;}

#yiv9372458151 .yiv9372458151MsoNormal {
margin:0 0 0 0;}

#yiv9372458151 o {
font-size:0;}

#yiv9372458151 #yiv9372458151photos div {
float:left;width:72px;}

#yiv9372458151 #yiv9372458151photos div div {
border:1px solid
#666666;height:62px;overflow:hidden;width:62px;}

#yiv9372458151 #yiv9372458151photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}

#yiv9372458151 #yiv9372458151reco-category {
font-size:77%;}

#yiv9372458151 #yiv9372458151reco-desc {
font-size:77%;}

#yiv9372458151 .yiv9372458151replbq {
margin:4px;}

#yiv9372458151 #yiv9372458151ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg table {
font-size:inherit;font:100%;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg select,
#yiv9372458151 input, #yiv9372458151 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg pre, #yiv9372458151
code {
font:115% monospace;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg * {
line-height:1.22em;}

#yiv9372458151 #yiv9372458151ygrp-mlmsg #yiv9372458151logo {
padding-bottom:10px;}


#yiv9372458151 #yiv9372458151ygrp-msg p a {
font-family:Verdana;}

#yiv9372458151 #yiv9372458151ygrp-msg
p#yiv9372458151attach-count span {
color:#1E66AE;font-weight:700;}

#yiv9372458151 #yiv9372458151ygrp-reco
#yiv9372458151reco-head {
color:#ff7900;font-weight:700;}

#yiv9372458151 #yiv9372458151ygrp-reco {
margin-bottom:20px;padding:0px;}

#yiv9372458151 #yiv9372458151ygrp-sponsor #yiv9372458151ov
li a {
font-size:130%;text-decoration:none;}

#yiv9372458151 #yiv9372458151ygrp-sponsor #yiv9372458151ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}

#yiv9372458151 #yiv9372458151ygrp-sponsor #yiv9372458151ov
ul {
margin:0;padding:0 0 0 8px;}

#yiv9372458151 #yiv9372458151ygrp-text {
font-family:Georgia;}

#yiv9372458151 #yiv9372458151ygrp-text p {
margin:0 0 1em 0;}

#yiv9372458151 #yiv9372458151ygrp-text tt {
font-size:120%;}

#yiv9372458151 #yiv9372458151ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv9372458151


Re: FC-40 & Raingutter Antenna

 

Hmmm ... rf floating on coax braid towards the rig???

What antenna are you usin and what round system has the tuner to work
against?!?

Had similar trouble on filedday with my fc1000 (also an autotuner by yaesu)
... adding some (loner) radial wires at the tuner and all was fine

The tricky thing is the tuner has something to work against ... and
sometimes it is not only your round but also the coax and other wiring that
the tuner uses as the other half of the antenna

Next is length of the wire

If it is close to halfwave you have very high impedance and voltage at the
feedin point ... no good for the tuner

So ... sometimes a small chane in length does help for the tuner finding the
right match

Reetz

Sigi

D9bfc

-----Ursprüngliche Nachricht-----
Von: YaesuTuner@... [mailto:YaesuTuner@...]
Gesendet: Sonntag, 7. September 2014 16:02
An: YaesuTuner@...
Betreff: [YaesuTuner] Re: FC-40 & Raingutter Antenna



I switched to 107ft and 85ft random wires and still wasn't having any
luck. I switched out to a new controller cables, added a lot of Mix 31
ferrite rods, and added a second ground rod wired to AC service entry
ground, I added a few more counterpoise without success - no go. The FT-
897D just went into tuning mode for a second and then displayed HSWR.

I switch my FT-897D power supply from a FP-30B internal to a FP-1030A
external, so I could go portable, and the FC-40 is now working from 6m -
40m. It takes a few seconds to tune, and only indicated HSWR on 80M and
160m, which is no surprise.Switching out between the FP-30B and FP-1030A
again, I can confirm that the FC-40 works with the external but not the
internal PS. Very odd...


Re: FC-40 & Raingutter Antenna

 

I switched to 107ft and 85ft random wires and still wasn't having any luck. I switched out to a new controller cables, added a lot of Mix 31 ferrite rods, and added a second ground rod wired to AC service entry ground, I added a few more counterpoise without success - no go. The FT-897D just went into tuning mode for a second and then displayed HSWR.

I switch my FT-897D power supply from a FP-30B internal to a FP-1030A external, so I could go portable, and the FC-40 is now working from 6m - 40m. It takes a few seconds to tune, and only indicated HSWR on 80M and 160m, which is no surprise.Switching out between the FP-30B and FP-1030A again, I can confirm that the FC-40 works with the external but not the internal PS. Very odd...


FC-40 & Raingutter Antenna

 

I was using raingutter antenna with my FT-897D and was able to pick up quite a lot of chatter on 20m, 40m and 80m. The gutter downspout was connected to my MFJ-898D tuner wire post and a set of 1/4 wavelength wires for 10m, 17m, 20m, 80m were connected to my tuner ground.


Today I connected the 12g insulated gutter wire to a new Yaesu FC-40 autotuner and ran a 12g insulated wire to a ground rod. The tuner cannot tune any band 6m-80m and I get HSWR on the FT-897D display.


At present, the FC-40 is mounted inside my garage and I am running the wires to the downspout and ground rod ?around the corner of the garage door together side-by-side. This was a quick-fix instead of drilling holes to the outside to bring the downspout wire and ground wire directly to the FC-40 posts. Both wires are side-by-side for about 4ft and the ground wire extend another 2ft to the ground rod.


I was surprised the FC-40 couldn't tune any band, as I was able to find numerous frequencies with SWR <3, between 2-3 and <2 with my MFJ-269 analyzer.


Any ideas?


Re: For Sale: Yaesu FC-1000 Remote Antenna Tuner/Coupler

 

Nice offer

Yepp ... fc1000 is a VERY good remote tuner (i also own one)

And you are correct ... can be used with nearly ANY 100w class trx

You only need ptt, agc and 12v

Greetz

Sigi

Dg9bfc

ps sadly you will not send overseas :-(

-----Ursprüngliche Nachricht-----
Von: YaesuTuner@... [mailto:YaesuTuner@...]
Gesendet: Freitag, 8. August 2014 18:10
An: YaesuTuner@...
Betreff: [YaesuTuner] For Sale: Yaesu FC-1000 Remote Antenna Tuner/Coupler






Yaesu FC-1000 Remote Antenna Tuner/Coupler was installed for a few
experimental operations, with 25-30 foot long wire. Tuned and performed
flawlessly on 80 – 10 with full power from FT-757. Package complete and
virtually brand-new. Has waterproof outside housing. Designed to work
automatically with FT-747, FT-757FT-767, FT-80, and likely other 100W
transceivers. Max Power 150W. Memorizes frequencies. Works well in manual
mode with nearly any 50 ohm output transceiver. $225 + shipping, domestic
only, USPS MO only – no Paypal. QRZ address good. WD4AON.

De WD four AON at GMAIL dot NET





For Sale: Yaesu FC-1000 Remote Antenna Tuner/Coupler

 


Yaesu FC-1000 Remote Antenna Tuner/Coupler was installed for a few experimental operations, with 25-30 foot long wire. Tuned and performed flawlessly on 80 – 10 with full power from FT-757. Package complete and virtually brand-new. Has waterproof outside housing. Designed to work automatically with FT-747, FT-757FT-767, FT-80, and likely other 100W transceivers. Max Power 150W. Memorizes frequencies. Works well in manual mode with nearly any 50 ohm output transceiver. $225 + shipping, domestic only, USPS MO only – no Paypal. QRZ address good. WD4AON.

De WD four AON at GMAIL dot NET



test message

 

it is only a test message


Introductions

Jeff
 

Hello all. My name is Jeff, callsign K4LMP. I just joined the group, and wanted to say hello. The moderator was interested in what type of gear I had, so I just figured I would start a post, and say hello, and list my gear. I have an FT-897D, for which I have an FC-30, as well as an LDG AT-897. I also have an FT-101EX, with the external VFO, digital display, dummyload/wattmeter, landliner phone patch, station monitor scope, external speaker, world clock, and 2m transverter. All I lack having a complete 101 station is the FL-2100B amp and FTV-650 6m transverter. I have an Alinco DX-70 mobile rig in my shack as well, with a LDG AT-100pro tuner. My mobile setup is an FT-8800, with a Kantronics TNC for mobile packet, an FT-857D for HF/6m with an LDG AT-100 Pro II autotuner. I run the K4LMP-R Echolink node, as well as the K4LMP-10 Winlink RMS Gateway. I also run the MSYS BBS on our local packet node, so, as you can see, I have several dedicated servers running 24/7 devoted to ham radio. I am in the process of putting up my 60 foot Rohn 45G tower. I joined this group, because I have the FC-30 autotuner, that I orignally bought with my 897D, just sitting in the box. It works great, as long as the SWR is not too awfully high. I thought there might be some tips to use it more efficiently. Glad to see this group, and hello to all.

73's es God Bless,
Jeff K4LMP


modifying the fc30

 

hi ken here,has anyone tried to improve the 30 by adding extra capactors,their surface mounted and not a lot of surface ares to solder to,I built a unit with extra capacters which were switchable on the output of the 30 and it tuned a lot better with the extra caps,they only need to be paralelled up to the fitted ones,regarding the coils,they have to be in serias with the origanals,eg making the coil longer, if Ihad seen the spec of the ldg at 897 i would have gone for that one,the 30 is only 1/5 the spec of the lgd,say no more,regards ken,m3zkb,rafars 4680


Re: fc40 tuner

raimo
 

Hello.

Look the file I just uploaded.

73s rami, oh6bi

--- In YaesuTuner@..., "buddken@..." <buddken@...> wrote:

does anyone have a spare copy of the circuit diagram showing what value capaciters are used,as the fc30 rearly needs uprating in its range 16 low to 150 high,regards ken m3zkb,rafars 4680


New file uploaded to YaesuTuner

 

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 : /FC-40 Technical Supplement.pdf
Uploaded by : oh6bi <oh6bi@...>
Description : FC-40 parts list and schema

You can access this file at the URL:


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

Regards,

oh6bi <oh6bi@...>


fc40 tuner

 

does anyone have a spare copy of the circuit diagram showing what value capaciters are used,as the fc30 rearly needs uprating in its range 16 low to 150 high,regards ken m3zkb,rafars 4680


fc30

 

regarding tuners,ive built quite a few now and to increase the range of the impedance to match top band one parrells up more capacators to increase the range of it,So has anyone tried adding more capactors to the fc30 to increase its range,regards,ken,m3zkb,rafars 4680


Re: Yaesu 897D with FC-30 or FC-40 tuner

 

hi ken here,what you could try is to set the tuner set up on A and set up the 2mt twig on B so the rig dosnt think the swr is wayout and so dosnt shut down the power,might be worth trying,regards ken,m3zkb

--- In YaesuTuner@..., "ae7vk" <ae7vk@...> wrote:

The truth is that I'm using an MFJ-929 autotuner with my 897D and having a problem that both Yaesu and MFJ are unwilling to solve.

Can someone here tell me exactly how an FC-30 or 40 works with a radio like the 897D? Here's the problem:

The 897 has two antenna outputs, one for HF and one for 2M/70cm. The HF goes to the tuner and the 2M goes directly to the 2M antenna. There's a cable that runs from the radio to the tuner for communications.

On my radio, once I've set the two menus to enable the tuner, and using the softkeys to enable the tuner, "TUNR" will appear in the radio display showing the tuner is enabled. If I tune the freq outside the legal ham bands the display changes to "tunr" (lower case) which, according to Yaesu tech support, means the tuner is out of range. Fine.

Here's the problem: with my setup when I switch to 2M, the display shows "tunr" since of course my tuner nor the FC30/40 work at 2M. But the tuner is NOT in the path so you'd think there'd be no effect, but I guess the radio doesn't "know" the tuner is not in the 2M transmission path.

Question: does this cause anyone here any problem when using 2M? My 897D reduces power way down like it's protecting itself. Same with the FC-30/40? If turn off the MFJ, or remove the communications cable, or press the "TUNE" softkey to remove "tunr" from the display (AND cycle the power) then it works fine. In other words once the radio sees there's no tuner, it behaves properly.

Anyone have a similar experience with the FC-30/40, or is this some fluke of using an MFJ tuner with the 897D radio? I've posted this on the Yaesu 897 User's Group, but have not received any usable solution.

Thanks,
Mac, AE7VK


Re: Yaesu 897D with FC-30 or FC-40 tuner

 

what might be the problem is what ever band your in the co-ax idealy needs to be in multiples of half waves so the rig sees the proper impedenceof the antenna,so if the fc30 is on the hf socket if is in range of the tuner it should work,if not add lengths of co-ax until it is in range. hope this helps,ken m3zkb

--- In YaesuTuner@..., "ae7vk" <ae7vk@...> wrote:

The truth is that I'm using an MFJ-929 autotuner with my 897D and having a problem that both Yaesu and MFJ are unwilling to solve.

Can someone here tell me exactly how an FC-30 or 40 works with a radio like the 897D? Here's the problem:

The 897 has two antenna outputs, one for HF and one for 2M/70cm. The HF goes to the tuner and the 2M goes directly to the 2M antenna. There's a cable that runs from the radio to the tuner for communications.

On my radio, once I've set the two menus to enable the tuner, and using the softkeys to enable the tuner, "TUNR" will appear in the radio display showing the tuner is enabled. If I tune the freq outside the legal ham bands the display changes to "tunr" (lower case) which, according to Yaesu tech support, means the tuner is out of range. Fine.

Here's the problem: with my setup when I switch to 2M, the display shows "tunr" since of course my tuner nor the FC30/40 work at 2M. But the tuner is NOT in the path so you'd think there'd be no effect, but I guess the radio doesn't "know" the tuner is not in the 2M transmission path.

Question: does this cause anyone here any problem when using 2M? My 897D reduces power way down like it's protecting itself. Same with the FC-30/40? If turn off the MFJ, or remove the communications cable, or press the "TUNE" softkey to remove "tunr" from the display (AND cycle the power) then it works fine. In other words once the radio sees there's no tuner, it behaves properly.

Anyone have a similar experience with the FC-30/40, or is this some fluke of using an MFJ tuner with the 897D radio? I've posted this on the Yaesu 897 User's Group, but have not received any usable solution.

Thanks,
Mac, AE7VK


Re: FC-40 Antenna Post

 

Open wire (aka ladderline) ... cause you can have high swr on that line
NEVER use coax for that!!!

Dg9bfc

Sigi

-----Ursprüngliche Nachricht-----
Von: YaesuTuner@... [mailto:YaesuTuner@...] Im
Auftrag von stucknbada
Gesendet: Mittwoch, 17. April 2013 14:21
An: YaesuTuner@...
Betreff: [YaesuTuner] FC-40 Antenna Post



I need to separate the FC-40 from the wire dipole antenna by a distance of
10 feet. What is the best way to connect the FC-40 antenna post to a wire
dipole antenna?
Thanks, Robert




FC-40 Antenna Post

 

I need to separate the FC-40 from the wire dipole antenna by a distance of 10 feet. What is the best way to connect the FC-40 antenna post to a wire dipole antenna?
Thanks, Robert