Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- YaesuTuner
- Messages
Search
|
Antenna tower cement base
Help!!??!!??
Our small club has to install a crank-up TV tower of about 30 feet and we do not know the manufacturer or any model numbers. We need some advice about how much concrete and rebar to use in the base - how wide, deep, etc. It will be in sandy soil and secure about 8 feet up to an anchored shed building. TIA! Terry de wd4aon@... |
|
|
Yaesu 897D with FC-30 or FC-40 tuner
ae7vk
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: New Member with First Post
Try another length (a few feet more or less as you have now)
toggle quoted message
Show quoted text
It will work I have an fc1000 by yaesu (nearly the same as the fc40) and and some setups you have to shorten or lengthen the wire that tuner finds a match (well documented in owners manual) Dg9bfc Sigi Ps you also can add a small coil at the shack end to get away from low current point ... then also the tuner will find a match -----Ursprüngliche Nachricht----- |
|
|
New Member with First Post
davidrehm40
Just bought a new Yaesu FT-950 and FC-40 Tuner.
Previously, and still in the shack, is my ICOM IC-706MKIIG and AH-4 Tuner. That setup worked just fine. I just wanted a new transceiver. I stayed with a 71 foot single wire but cannot tune on 40 meters with the FC-40. Reading eham.net, it seems that others have had smiilar problems. There may be no one length of wire that will tune all bands. The AH-4 did tune all bands. Sure will appreciate any ideas and suggestions. Very disappointed with the tuner at this point. Thanks, Dave, W5KKC |
|
|
Re: External controller for FC-40
Lou
Well the Pinout from the FC-40 manual with a schematic shows:
toggle quoted message
Show quoted text
1 - 13.5V (Input) 2 - TX GND (Input) 3 - GND 4 - Data In (Input) 5 - Data Out (Out) 6 - Sense (GND) 7 - Reset (Input) 8 - TX_INH (Out) The Data in Data out pins go to the Serial I/O pins of the MCU, so the data is serial, it is just a matter of what they contain. --- In YaesuTuner@..., "siegfried jackstien" <siegfried.jackstien@...> wrote:
|
|
|
Re: External controller for FC-40
I have an fc 1000 .... has control head and tuner box ... maybe the protocol
toggle quoted message
Show quoted text
is the same?!? The control head of the fc1000 needs just 12v and ptt and gives alc back to the rig for tuning with low power .... the frequency data is only needed if you use the memory function (presets) but for tuning it is not needed (so I also could use it with my icom rig *g*) What data is sent over the data bus from control head to tuning box??? I do not know .... but that could not be toooo difficult to find that out Dg9bfc Sigi -----Ursprüngliche Nachricht----- |
|
|
Re: External controller for FC-40
Lou
I am looking for the same information. Has anyone reverse engineered the communications protocol? A web search some people have done it with ICOMs tuners.
toggle quoted message
Show quoted text
--- In YaesuTuner@..., "de_w1jp" <w1jp@...> wrote:
|
|
|
Re: extending tuner control cables
Another option is to purchase two cables with a mini 8 DIN connector terminated with an RJ-45 connector. Just run some straight through CAT 5 cable between them to extend to the desired distance. They are available from Pacific Cable . They will also build custom extension cables to your length.
toggle quoted message
Show quoted text
73, K4PYR --- In YaesuTuner@..., "Ron - KE5RON" <ron.parker@...> wrote:
|
|
|
Re: extending tuner control cables
I was able to extend my cables with the W4RT pigtails and it worked great. I'm using them at home now on a permanent 43' vertical installation.
One other source I found for the mini DIN connectors and cables is L-COM at www.l-com.com. They have some extension cables in various lengths that I've used with good success with the FC-40. These cables could also be cut in two and spliced into longer cable runs as another option. -- Ron Parker, KE5RON |
|
|
Re: 148 ft wire testing
Try making the wire 145 foot, look at the AH-4 Graphical Length Wire Calculator in the Files Section here in this group.
toggle quoted message
Show quoted text
Doesn't matter if the tuner is Icom or Yaesu, you still have to avoid 1/2 wavelength for the wire antenna. --- In YaesuTuner@..., "raimo" <oh6bi@...> wrote:
|
|
|
Re: extending tuner control cables
And with the spare witrs you can parallel the power wires for lower loss
toggle quoted message
Show quoted text
(depends if needed if you have a long run For me I used just din connectors and I made my own long cable Have an fc1000 Dg9bfc Sigi Ps I use it also with a 1:4 balun on the outside to tune ladderline fed antennas -----Ursprüngliche Nachricht----- |
|
|
Re: extending tuner control cables
Ron - KE5RON
Thanks for posting this idea. That is excellent. I've ordered those pigtails from W4RT and will try something like your idea. I had ordered some 8 pin mini DIN connectors from Cablestogo but I'm not sure I can solder wires on those tiny pins. Those pigtails will solve that problem.
toggle quoted message
Show quoted text
I'm working on a portable 43' vertical wire antenna for Field Day. I have a fiberglass mast from Max Gain Systems with a 43' wire running to the top of it. I have the FC-40 at the base with the antenna wire on the antenna post and some radials connected to the ground post. It is tuning everything from 10 meters down to 160 but I need a longer control cable since the radio will probably be about 100 feet from the antenna. I'm using the FT-450 with it for Field Day but have also tried my FT-857D. --- In YaesuTuner@..., "Charles Penry" <charles@...> wrote:
|
|
|
Re: A new FC-40 group ?
开云体育I have no fc 40 BUT an fc1000 by yaesu,,,, I had some spare room in it and put a 1:4 balun on the output side …. Now with a jumper wire I can switch that balun in and can tune dipoles, loops or other things that the mobile tuner otherwise could not handle You can not put the balun on the input side (but coiling up a few feet of the coax does help a bit) cause you have a second device (control head) on the trx side that is grounded at the trx so you can not just make a current balun on the inside like with an sgc tuner …. Many many manufacturers build (manual) tuners with a 1:4 on the outside so I thought to try it out on a fieldday with different antennas…. If you have an autotuner (regardless what others say and regardless what manufacturer) just try it out with an external balun on the output side If the tuner can not tune it on a band or two just make the ladderline or the antenna a few feet longer (or shorter) and make another try on all bands …. With that setup /the tuner with balun) I can now tune on any band with a pushbutton … That worked on fieldday with different dipoles (all ladderline fed) and on my fullsize loop at home…. I would like to hear more of different setups from others ….. What did you try with your yaesu tuner? What length of antenna worked what lengths should be avoided? Did you make any mods on your tuner? What mods?? I am also thinking about changing some of the larger coils in the fc1000 …..better q > lower losses > can handle more power …. That is what I hope I also made a small mod in the controlhead of the fc1000 I have a swr meter with led built in cause in the control head there was also some spare room (I like mods that can fill the spare room that the manufacturer left hi hi ) What did others do with their rigs and tuners?? Greetz and 73 Dg9bfc Sigi Ps: on my fc901 manual tuner I also put a 1:4 in and changed the bandswitch to a unit with more contacts (warc bands) but that’s another story J |
|
|
Re: A new FC-40 group ?
raimo
Hi Ken.
toggle quoted message
Show quoted text
I tried to contact moderators and owner but no success. Not contacted to Yahoo. There is new group: Yaesu-Autotuners. It is controlled by the owner F5PSR, Cedrick. All messages has to be approved by him, so the group will be spam-free. Just join that group, nice to get you there. I am just member (internet is taking too much my time..). When I have some more time I will copy all my FC40 info there. After long winter I finally reached my "Wire-Farm" at cottage, connected FC40 to FT897, but it is not tuning anymore. When pressing rig tune button ther comes "wait" info to screen but nothing happening. Then opened tuner and found some voltages. Right now time problems but later will start testing again. 73s de rami, oh6bi --- In YaesuTuner@..., "girtab" <klhutch@...> wrote:
|
|
|
Re: A new FC-40 group ?
girtab
--- In YaesuTuner@..., "kc5cqw" <kc5cqw@...> wrote:
In spite of owning an FC-40 I don't hang out here much. Just dropped in today to find a lot of spam and this thread which is certainly justified. I guess the list owner has gone missing? If he/she ever bothered to appoint any moderators they must have gone missing too. Yet there is some content here that would be missed if we lost it. Does anyone know if YahooGroups policy allows group members to take over a group that has been abandoned by its creator? If they do I would propose we take over this group, purge the spam that is still resident in the web based group archive, and change the membership policy to require that first posts be moderated so that spammers can be eliminated. They hardly ever bother to make an on topic post to evade this simple anti-spam policy, they just move on to groups with no protection. Like this one! Any interest or have you all already left? Of course it won't matter if YahooGroups will not allow group members to seize an abandoned group. Ken |
|
|
The new Yaesu autotuners is born !
Hello everybody,
I just started on the new group. So I have got a lot of things to do improve it is just the begining and I'm interested in any kind of ideas. The link to reach the group home page is: I hope a lot of users would be interested in trying it. Following the idea given by Carl, KE1EJH, I called it Yaesu autotuners. And there, as here (!), we'll be able to discuss about any kind of Yeasu autotuners or automatic antennas. Please join it, try it and make you feel at home... to stay ! 73 - Cedric F5PSR |
|
|
Re: A new FC-40 group ?
--- On Thu, 8/4/10, kc5cqw wrote:
|
Ron Parker, KR5P
to navigate to use esc to dismiss