Re: Feb QST article A Portable Twin-Lead 20m Dipole
While it is stepping over the line to copy and distribute, it would have been more appropriate to just link to the article.? There is nothing special about a twinlead dipole, there have been reprints of articles for decades.? While I haven't looked, I own several ARRL publications that I am sure also include that article or at least one on the twinlead dipole.? They do make money from selling these books too.? Sad that twinlead is getting hard to find.? No local RAdio Shack to walk into these days and buy a 100ft. package.
--
Al Skierkiewicz
WB9UVJ
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Thanks Ron. I wonder why the PAs fail. Hi SWR? Shorted coax? I read about the FETs going into self oscillation if internal battery is left in place. I also think I read that ND and 818 are better protected. Mine is new to me, non ND, almost brand new from an estate/SK? I'm using the LDG Z817 to minimize risk. Now to decide if I should get a PA board as a spare before they are gone. 73
Mike WA1MAD
On Oct 8, 2024 2:05 PM, "Ron Wright via groups.io" <lt_wright_flg@...> wrote: I have replaced my 2004 FT817 PA twice.? Ordered the board from Yaesu and installed it.
I am EE and have done a lot of electronics although in work relied on techs to handly most of that.? Seems many dont like giving tools to EEs, but I have done most at home.
Replacing the PA is some what simple.? Do need to unsolder the old board and install including soldering the input and output coaxes to the board.? Then there is an alignment where you connect an Amp meter in the power line and adjust 2 pots, one for each PA transistor.? You will need a multi meter. There are good instructions on some of the FT817/8 boards.?
Dont be afraid of doing this.? Not like small surface mounted ICs.? Everything is rather large and easy to solder.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Monday, October 7, 2024 at 08:08:14 PM EDT, Ken N2VIP <ken@...> wrote:
That's great, thanks for sharing your success with us. I suspect you're right about saying it was for an FT-817.
Glad she's up and running, enjoy! Ken, N2VIP On Oct 7, 2024, at 18:59, Tech Guy <tech48055@...> wrote:
? It was easy. Desolder two small coax cables, power jumper, ground jumper and other ground. Tack solder a wire to the pad the positive jumper connected to and put a milliamp meter in line. Set the radio to 1.8 Mhz CW. I used a dummy load. Press ptt and adjust the pot on the right to about 42 ma when ptt pressed. Move to the left pot and adjust to about 82ma. Remove the wire and put the positive jumper back. I did add sone heatsink compound to the board before I screwed it to the heatsink. Look at the videos mentioned for details. I used to do tv repair years ago. This is much easier than pulling the smt fets that I couldn’t find anyway. Just be careful with heat and touching other pads or parts.
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Re: Feb QST article A Portable Twin-Lead 20m Dipole
Here is site for 20m folded twin lead dipole
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Tuesday, October 8, 2024 at 02:10:36 PM EDT, Ron Wright via groups.io <lt_wright_flg@...> wrote:
I really thing ARRL and QST dont mind someone making a copy of an article.? Would mind if you were to start selling it.? Like buying a book or getting QST, you can use the info in them.
Even posting on FB or Yahoo is often allowed.? I guest ARRL could get nasty if they wanted to, but since most all the articles are from other Hams they are for info to other Hams.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Monday, October 7, 2024 at 08:05:39 PM EDT, Ken N2VIP <ken@...> wrote:
The article is from behind a paywall (ARRL member website), that some one downloaded it, stripped of the copyright notice on the cover page, then made it publicly available doesn't make it "public domain".
A link to the article behind ARRL website login would be 100% kosher, since it limits access to those that are current members.
I was mistaken before, the other list member was correct, it appears ARRL/QST retains sole ownership of items they publish - I was about 92% certain authors retain the right to freely share their own works after publishing it in QST.
The link to a PDF that was shared here was *clearly* created from the ARRL website, the content was the exact page layout taken directly from QST.
I know people like to think that sharing PDFs of a radio Service Manual is fair use because they own the radio and think the mfg owes them the SM, but in many/most cases the SM is a product the mfg tries to sell, so they retain copyright on it and discourage hams from sharing it amongst themselves. After a while, the mfg stop fighting it, and some turn a blind eye, but it's not something a group should condone, at least in my opinion, but I'm just one member.
Ken, N2VIP
> On Oct 7, 2024, at 18:46, wa6ixi via groups.io <wa6ixi@...> wrote:
>
> Would the matter be considered "moot" if everyone got a link to the (publicly published) article and then they could just make their own copy of it?
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Re: Feb QST article A Portable Twin-Lead 20m Dipole
I really thing ARRL and QST dont mind someone making a copy of an article.? Would mind if you were to start selling it.? Like buying a book or getting QST, you can use the info in them.
Even posting on FB or Yahoo is often allowed.? I guest ARRL could get nasty if they wanted to, but since most all the articles are from other Hams they are for info to other Hams.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Monday, October 7, 2024 at 08:05:39 PM EDT, Ken N2VIP <ken@...> wrote:
The article is from behind a paywall (ARRL member website), that some one downloaded it, stripped of the copyright notice on the cover page, then made it publicly available doesn't make it "public domain".
A link to the article behind ARRL website login would be 100% kosher, since it limits access to those that are current members.
I was mistaken before, the other list member was correct, it appears ARRL/QST retains sole ownership of items they publish - I was about 92% certain authors retain the right to freely share their own works after publishing it in QST.
The link to a PDF that was shared here was *clearly* created from the ARRL website, the content was the exact page layout taken directly from QST.
I know people like to think that sharing PDFs of a radio Service Manual is fair use because they own the radio and think the mfg owes them the SM, but in many/most cases the SM is a product the mfg tries to sell, so they retain copyright on it and discourage hams from sharing it amongst themselves. After a while, the mfg stop fighting it, and some turn a blind eye, but it's not something a group should condone, at least in my opinion, but I'm just one member.
Ken, N2VIP
> On Oct 7, 2024, at 18:46, wa6ixi via groups.io <wa6ixi@...> wrote:
>
> Would the matter be considered "moot" if everyone got a link to the (publicly published) article and then they could just make their own copy of it?
|
I have replaced my 2004 FT817 PA twice.? Ordered the board from Yaesu and installed it.
I am EE and have done a lot of electronics although in work relied on techs to handly most of that.? Seems many dont like giving tools to EEs, but I have done most at home.
Replacing the PA is some what simple.? Do need to unsolder the old board and install including soldering the input and output coaxes to the board.? Then there is an alignment where you connect an Amp meter in the power line and adjust 2 pots, one for each PA transistor.? You will need a multi meter. There are good instructions on some of the FT817/8 boards.?
Dont be afraid of doing this.? Not like small surface mounted ICs.? Everything is rather large and easy to solder.
73, ron, n9ee/r Ron Wright, N9EE/R Hernando Co ARES EC
Spring Hill, Florida also n9ee55@...
On Monday, October 7, 2024 at 08:08:14 PM EDT, Ken N2VIP <ken@...> wrote:
That's great, thanks for sharing your success with us. I suspect you're right about saying it was for an FT-817.
Glad she's up and running, enjoy!
On Oct 7, 2024, at 18:59, Tech Guy <tech48055@...> wrote:
? It was easy. Desolder two small coax cables, power jumper, ground jumper and other ground. Tack solder a wire to the pad the positive jumper connected to and put a milliamp meter in line. Set the radio to 1.8 Mhz CW. I used a dummy load. Press ptt and adjust the pot on the right to about 42 ma when ptt pressed. Move to the left pot and adjust to about 82ma. Remove the wire and put the positive jumper back. I did add sone heatsink compound to the board before I screwed it to the heatsink. Look at the videos mentioned for details. I used to do tv repair years ago. This is much easier than pulling the smt fets that I couldn’t find anyway. Just be careful with heat and touching other pads or parts.
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Re: Home Power Supply for Yaseu Ft 818nd
Thanks all for the very splendid advice
?
cheers
Tony
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That's great, thanks for sharing your success with us. I suspect you're right about saying it was for an FT-817.
Glad she's up and running, enjoy!
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Show quoted text
On Oct 7, 2024, at 18:59, Tech Guy <tech48055@...> wrote:
? It was easy. Desolder two small coax cables, power jumper, ground jumper and other ground. Tack solder a wire to the pad the positive jumper connected to and put a milliamp meter in line. Set the radio to 1.8 Mhz CW. I used a dummy load. Press ptt and adjust the pot on the right to about 42 ma when ptt pressed. Move to the left pot and adjust to about 82ma. Remove the wire and put the positive jumper back. I did add sone heatsink compound to the board before I screwed it to the heatsink. Look at the videos mentioned for details. I used to do tv repair years ago. This is much easier than pulling the smt fets that I couldn’t find anyway. Just be careful with heat and touching other pads or parts.
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
The article is from behind a paywall (ARRL member website), that some one downloaded it, stripped of the copyright notice on the cover page, then made it publicly available doesn't make it "public domain".
A link to the article behind ARRL website login would be 100% kosher, since it limits access to those that are current members.
I was mistaken before, the other list member was correct, it appears ARRL/QST retains sole ownership of items they publish - I was about 92% certain authors retain the right to freely share their own works after publishing it in QST.
The link to a PDF that was shared here was *clearly* created from the ARRL website, the content was the exact page layout taken directly from QST.
I know people like to think that sharing PDFs of a radio Service Manual is fair use because they own the radio and think the mfg owes them the SM, but in many/most cases the SM is a product the mfg tries to sell, so they retain copyright on it and discourage hams from sharing it amongst themselves. After a while, the mfg stop fighting it, and some turn a blind eye, but it's not something a group should condone, at least in my opinion, but I'm just one member.
Ken, N2VIP
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Show quoted text
On Oct 7, 2024, at 18:46, wa6ixi via groups.io <wa6ixi@...> wrote:
Would the matter be considered "moot" if everyone got a link to the (publicly published) article and then they could just make their own copy of it?
|
It was easy. Desolder two small coax cables, power jumper, ground jumper and other ground. Tack solder a wire to the pad the positive jumper connected to and put a milliamp meter in line. Set the radio to 1.8 Mhz CW. I used a dummy load. Press ptt and adjust the pot on the right to about 42 ma when ptt pressed. Move to the left pot and adjust to about 82ma. Remove the wire and put the positive jumper back. I did add sone heatsink compound to the board before I screwed it to the heatsink. Look at the videos mentioned for details. I used to do tv repair years ago. This is much easier than pulling the smt fets that I couldn’t find anyway. Just be careful with heat and touching other pads or parts.
|
Re: Feb QST article A Portable Twin-Lead 20m Dipole
Would the matter be considered "moot" if everyone got a link to the (publicly published) article and then they could just make their own copy of it??
On Monday, October 7, 2024 at 05:23:16 AM PDT, William, KR8L via groups.io <wpe9fon@...> wrote:
You can put this in the "I'm not a lawyer, but..." category of opinions, and I realize that I"m straying off topic, but...?
?
I've written a few QST articles over the years, and as I recall the author of an article assigns all rights to the ARRL.? So what I think I understand is that the author no longer owns the article and would not have permission to distribute copies.
?
On Fri, Oct 4, 2024 at 05:56 PM, Ken N2VIP wrote:
If the author wants to give you/us a shareable copy of an article they wrote, I believe they have that right...
?
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Re: Internal battery FT-817ND
I seem to recall that someone fitted an Elecraft T1 automatic antenna matcher into the battery compartment of an 817 some years ago. ? ?
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From: [email protected] <[email protected]> On Behalf Of Michael Davis via groups.io
Sent: Tuesday, 8 October 2024 09:10
To: [email protected]
Subject: Re: [ft817] Internal battery FT-817ND? Ha ha, that space for a tuner would be wonderful. I’m using the LDG 817 tuner in hopes It’ll keep me from “cooking” the finals. Thanks
On Oct 7, 2024, at 6:05?PM, James Todd via groups.io <toddjam@...> wrote:
? Way back in the day, I knew a fellow who used the space for a memory keyer, CW filter, and something else. ?He had to use external batteries anyway, so that saved some space for other things. With SMD s and tiny relays, there might be enough space in there for an antenna, tuner.?
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Re: Internal battery FT-817ND
Ha ha, that space for a tuner would be wonderful. I’m using the LDG 817 tuner in hopes It’ll keep me from “cooking” the finals. Thanks Mike Davis WA1MAD
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On Oct 7, 2024, at 6:05?PM, James Todd via groups.io <toddjam@...> wrote:
? Way back in the day, I knew a fellow who used the space for a memory keyer, CW filter, and something else. ?He had to use external batteries anyway, so that saved some space for other things. With SMD s and tiny relays, there might be enough space in there for an antenna, tuner.?
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That’s great news. Now for my 2 week ago question that has yet to be answered. Was it difficult? Were instrument adjustments necessary? Are you a repair guru and an smd type guy? Thanks Mike Davis WA1MAD
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On Oct 7, 2024, at 4:41?PM, Tech Guy <tech48055@...> wrote:
? I ordered a final board from a store in Germany for the 818 and installed it. I made several contacts to Chicago and Connecticut and around the Southeast on 40 meters. It was a good day for my hamfest special FT 817. Maybe I can pick up a cw filter someday. Just glad to get it on the air. I made the mistake of telling Yaesu USA that I wanted one for my 817. I probably should have said it was an 818. Maybe they would have sold me one then instead of telling me no parts were available. 73s John N4HNO
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Re: Internal battery FT-817ND
Way back in the day, I knew a fellow who used the space for a memory keyer, CW filter, and something else. ?He had to use external batteries anyway, so that saved some space for other things. With SMD s and tiny relays, there might be enough space in there for an antenna, tuner.?
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Martyn, I was examining the 18650 battery that I have. 3 of them in a package looks like it could be attached, if not inserted in the compartment. I haven’t looked at the wiring, and don’t know where the 5 wires go. But now that the kit has been ordered, no need to do that. What is the expected 3000 mAh battery run time on a typical SSB 817 @ 5 watts? Nice going on the 3D printed cover.
Mike Davis WA1MAD
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Re: Internal battery FT-817ND
I too favor gel batteries. Low initial cost is a driving factor along with a simple charging? protocol. If one is concerned about extra internal heat being generated, just put one or two 5 amp rectifiers in series. They too generate heat, but it remains outside of the radio. ? ? Although I remain a Yaesu fan, I view the internal battery compartment feature as a fundamental failure along with the internal charging control. I use the space for spare fuses and such. ? ?FWIW, JMHO, YMMV, etc.
On Mon, Oct 7, 2024 at 4:46 PM, G0FTD via groups.io <andyfoad@...> wrote: On Sun, Oct 6, 2024 at 10:17 PM, Andy GD1MIP wrote:
Thanks all, I have reverted to the dry cell tray and some NiMH AA cells whilst I ponder my options.
Just another small note.
?
Just about all rechargable cells like AA type are over size physically.
?
Bulging battery compartment syndrome etc.
?
ENELOOP cells use the correct dimensions as well as having a VERY low self discharge
rate. You can leave them for months when charged, unlike NiCd / other NiMH chemistry
types that goes dead after a few months, and do not recover.
?
Sure, you can charge the older type, terminal voltage can be reached and your whizzbang
charger says ready to go. Un oh, nope. Now try pulling some current out of them and the
rig will switch off.
?
The other bugbear of using the internal empty cell case is terminal resistance.
?
Keep this contacts clean on the cells / springs otherwise it's like having a pack with
a high internal resistance that limits the current.
?
Try to run 5w output and again the rig shuts off, grr.
?
That's why I keep going back to a simple ?15? external 7ah gel cell for /P ops.
?
73 de Andy
?
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Re: Internal battery FT-817ND
On Sun, Oct 6, 2024 at 10:17 PM, Andy GD1MIP wrote:
Thanks all, I have reverted to the dry cell tray and some NiMH AA cells whilst I ponder my options.
Just another small note.
?
Just about all rechargable cells like AA type are over size physically.
?
Bulging battery compartment syndrome etc.
?
ENELOOP cells use the correct dimensions as well as having a VERY low self discharge
rate. You can leave them for months when charged, unlike NiCd / other NiMH chemistry
types that goes dead after a few months, and do not recover.
?
Sure, you can charge the older type, terminal voltage can be reached and your whizzbang
charger says ready to go. Un oh, nope. Now try pulling some current out of them and the
rig will switch off.
?
The other bugbear of using the internal empty cell case is terminal resistance.
?
Keep this contacts clean on the cells / springs otherwise it's like having a pack with
a high internal resistance that limits the current.
?
Try to run 5w output and again the rig shuts off, grr.
?
That's why I keep going back to a simple ?15? external 7ah gel cell for /P ops.
?
73 de Andy
?
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I ordered a final board from a store in Germany for the 818 and installed it. I made several contacts to Chicago and Connecticut and around the Southeast on 40 meters. It was a good day for my hamfest special FT 817. Maybe I can pick up a cw filter someday. Just glad to get it on the air. I made the mistake of telling Yaesu USA that I wanted one for my 817. I probably should have said it was an 818. Maybe they would have sold me one then instead of telling me no parts were available. 73s John N4HNO
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Re: Internal battery FT-817ND
I 3d printed the extended battery cover and 18650 holder, it was on thingiverse. It works very well and has a charger port for a proper 3s LiPo charger.
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Re: Internal battery FT-817ND
Well Kevin, that’s good news. Thanks Mike Davis WA1MAD
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On Oct 7, 2024, at 2:28?PM, Kevin - K5KTM <Ktmullens@...> wrote:
? Regarding lithium battery fires, they do happen and anything is possible but I have yet to hear of a single occurrence of the windcamp battery catching fire.? On Oct 7, 2024, at 12:01, Tobias KK7BCO/2M0TFF via groups.io <feltusfecit1@...> wrote:
? I believe the Windcamp pack has a regulator on it, as it's my understanding that the Windcamp charger is just a wall wart.
Most RC batteries do not habe regulators on them, as they are designed for very high current discharge, and I think they also get charged at high current to get things back in action.
So, I think the risk with RC batteries is during charge. Most phones and laptops have pillow pack lipos in them, most don't catch fire.
Mike, why do model plane clubs keep their soft pac LiPo batteries in metal ammo boxes? I'm told it's to be safe, in case one catches on fire, and was led to believe that LiPo fires happen every so often. I'd sure hate to have that happen. With the Windcamp setup, can overcharging happen and cause a fire?
Mike WA1MAD
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Al WB9UVJ
Michael Davis
Tony Murphy
Martyn Bell M0TEB #admin