G’day Leicester,
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Good question, wish I could give you an answer!
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Perhaps the 817 and the 818 are just different enough that a clone from one
to the other won’t work?
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Maybe another approach like using Chirp to read the 817 then transfer that
to the 818?
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Just a thought...
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73,
Steve VK2ARS
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From: Leicester Hibbert via groups.io
Sent: Sunday, October 20, 2024 5:29 PM
Subject: Re: [ft817] Clone FT817 to FT818
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Hi All,
I’m having trouble trying to clone a FT817
to a friend’s FT818 using FTBasicMMO with a CT-62 cable, and a direct Clone
Cable as described on P69 of the FT817 Handbook.
In both cases the procedure ends abruptly
with an error message. Am I wrong to think it should work?
73
Leicester Hibbert
VK4ALH
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From: Leicester Hibbert <rhi55057@...>
Sent: Sunday, 20 October 2024 4:28 PM
To: '[email protected]' <[email protected]>
Subject: Clone FT817 to FT818? Hi All, I’m having trouble trying to clone a FT817 to a friend’s FT818 using FTBasicMMO with a CT-62 cable, and a direct Clone Cable as described on P69 of the FT817 Handbook. In both cases the procedure ends abruptly with an error message. Am I wrong to think it should work? 73 Leicester Hibbert VK4ALH ?
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Re: Power output instable
As a reminder, Yaesu shipped the FT-817, FT-817nd, and FT-818 with not only a battery pack, but also an antenna collection (2m, 6m, and 70cm) and shoulder strap. They obviously viewed this as a portable radio which could also be used in a shack.
In that context, defaulting to the front panel BNC makes sense, or, at a minimum, isn't a 'mistake' when considered logically.
The power consumption of the antenna select relay is 20 mA/hr (??), if an operator kept that relay energized for the entirety of their operating session, how much shorter would their operating session be? In un-squelched receive the radio consumed 450 mA, full-power transmit 2,000 mA. In pure, un-squelched RX, it would reduce operating time 20 mA / 450 mA, or about 4.45%. If keying down constantly, 20 mA / 2,000 mA, or about 1%. If we were running constant, worst-case FT8 (15 seconds of RX, then 15 seconds TX, -continuously), then the reduction in operating time would be 20 mA / 1,225 mA, or about 1.6%.
That's a loss of about 1 minute for each anticipated hour of operation.
Is this really something we need to consider as a meaningful "waste" of battery power?
I don't think so, but I understand opinions vary.
/soapbox
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On Oct 17, 2024, at 14:05, Al WB9UVJ <markaren1@...> wrote:
As a reminder, Yaesu designed the radio so that the front connector is the normally closed contact of the relay.? To use the rear connectors, power is supplied to the relay coil.? AS this is the most often used output, Yaesu kind of missed the definition of "low power" since the radio uses more power for the rear connector than the front.
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Re: Power output instable
Pietro,
Sorry to have been away for a few days.? I looked at your pictures of the display and the SWR does seem a little high.? The radio cuts back on power when the SWR goes up to protect the finals.? In the photo the radio is making power.? Now, many people have reported that the output relay does seem to go intermittent from time to time.? I believe that is do to either dirty contacts on the relay or reduced input voltage that is preventing the relay to make the switch.? Just for myself, I know the contacts are somewhat self cleaning when the relay operates.? Since I have several memories programed, on HF, VHF and UHF, I programmed one memory to use the front antenna connector.? By switching between that memory and a normal memory using the rear antenna connector, I can exercise the relay several times rapidly.? As a reminder, Yaesu designed the radio so that the front connector is the normally closed contact of the relay.? To use the rear connectors, power is supplied to the relay coil.? AS this is the most often used output, Yaesu kind of missed the definition of "low power" since the radio uses more power for the rear connector than the front.
I had a unique situation on my radio in that in UHF, the SWR always showed a little higher than the VHF.? And it showed different that an outboard SWR meter.? So I went looking for an issue inside the radio.? What I found was a small cap that must have fallen into the radio during assembly in the UHF SWR circuitry.? All of the other parts were correct.? So I removed the cap, readjusted the SWR bridge and checked the software.? Now the internal SWR meter agrees with an external meter and I no longer have HSWR warnings.?? My previous 817 also suffered from the relay contact issue.
Good luck
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Al Skierkiewicz
WB9UVJ
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Re: Power output instable
Just like going to the dentist. Did Ali Express finally deliver? I’m hoping my battery pack gets her soon. We ordered our parts about the same time.? Mike Davis WA1MAD
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On Oct 17, 2024, at 2:24?PM, davebb123456 <davidbrowne76@...> wrote:
? Hi were did you get them from in the end,
Dave 2E0DMB
The radio doesn't want you to do surgery on it! LOL Ken, N2VIP On Oct 17, 2024, at 11:17, Pietro Molina <pietro@...> wrote:
? I got the pin diodes but suddenly, yesterday, it starts to work at full power. Astonishing, disorienting...
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I2OIM
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Re: Power output instable
Hi were did you get them from in the end,
Dave 2E0DMB
The radio doesn't want you to do surgery on it! LOL Ken, N2VIP On Oct 17, 2024, at 11:17, Pietro Molina <pietro@...> wrote:
? I got the pin diodes but suddenly, yesterday, it starts to work at full power. Astonishing, disorienting...
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I2OIM
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Re: Power output instable
The radio doesn't want you to do surgery on it! LOL
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On Oct 17, 2024, at 11:17, Pietro Molina <pietro@...> wrote:
? I got the pin diodes but suddenly, yesterday, it starts to work at full power. Astonishing, disorienting...
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I2OIM
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Re: Power output instable
I got the pin diodes but suddenly, yesterday, it starts to work at full power. Astonishing, disorienting...
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I2OIM
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Re: WHATSON 3A Power Supply
Hi Tony,
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The current rating looks adequate though marginal.? Hopefully it will be RF quiet as well.? If you have RFI from it look into the Pro Audio Engineering Kx33, as far as we know it is the only supply specifically designed to power communications equipment.? A lot more info as well as a special offer for the FT-817/818 group .
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Cheers & 73,
Howie / WA4PSC
Pro Audio Engineering
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Sounds like a good time, we should all come.
Kevin Mullens
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Re: WHATSON 3A Power Supply
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Re: WHATSON 3A Power Supply
From the user manual?
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Current Consumption: Squelched: 250 mA (Approx.)
Receive: 450 mA
Transmit: 2.4 A (HF/145 MHz), 2.7 A (430 MHz)
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You're good to go.
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G4MAD?
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Hi,
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I have picked up a WhatsOn 3A Power Supply that plugs into the mains. Will that work ok with the FT818nd as it can deliver 3A continuous. Dont want to plug it in just in case without confirmation :-)
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Thanks
Tony
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I should have said “Congress Hotel.”
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Bob:
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Perhaps this message about the Chicago Hotel is misdirected.?
Jim
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Boersma has just told me that he will get the Congress Hotel
booking codes in January...
I'll alert you whe he has them...
Bob
On 11/10/2024 18:29, James Todd wrote:
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Not too unexpectedly, the HSU277 diodes did not arrive from
AliExpress. Thus, I have no update on whether my lack of UHF is
due to a bad PIN diode. ?
I was warned that I'd probably not receive my order from
AliExpress, and then I'd be stonewalled on a refund. That is
exactly what has happened. USPS, as the last-mile shipper,
reports that there's no postage on the item, which is supposedly
in Chicago, so they're not going to handle it. ?I should have
listened.?
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Hi all,
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you could check the following page as well, if you haven't found it already...
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73,
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DIck
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Hi Mike and Jack,
The tap points in an 818ND, or indeed to the late models of 817ND, are pretty much in the same place as they used to be: +RxB still on that one via, the signal on either the output (as per official HupRF installation instructions) or the input (as commonly done by various people on the Internet in order to gain more panadapter bandwidth).
Unfortunately the latter is MUCH more troublesome to solder a wire to than it used to be because since Lot 262, XF1001 is a surface-mount four-pole filter DSF753SBF rather than the through-hole MF68 from the earlier models. This means very, very little space to solder the wire to on the one hand and a considerable risk of creating a short between the input-or-output pad and the body of the filter. Personally, after much deliberation I decided that adding a panadapter to my 817 was not worth the risk of bricking it.
If you feel brave, have got a steady hand and have sourced some very fine wire, position your transceiver so that the PLL-unit shield is closer to you and the writing on XF1001 is the right way up. In that orientation, the input pad is bottom left and the output one is top right. The other two corner pads are connected to ground and can be identified quite easily because they both have short tracks leading from them to vias.
Good luck! You will need it.
Source: Yaesu FT-817/ND/-818ND Technical Supplement, available from various places on the Web.
--
Marek M0JUR
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Re: Internal battery FT-817ND
On Thu, Oct 10, 2024 at 10:27 PM, Joseph Wonoski wrote:
If you have a fully adjustable power supply for voltage and current limiting, all of that can be lumped together as a single overall limit to suit the entire setup observing the specs of all elements. It's from that perspective that I commented.
Yep, and fully understood ;-)
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My so called bench PSU failed a few years back, not got around to replacing it,
but I used to use that for charging my 7ah gell cell.
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(Will one day build my own when I get time).
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In the meantime I just insert a 22 Ohm wirewound resistor in series with a bog
standard 13.8v PSU and that does the trick.
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73 de Andy
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That is a helpful analysis, especially if you have the schematic at hand. My practice is to print the schematic, then trace the various signal paths on it with different color highlighters. ?After some of that, it becomes easier to see the paths. If the band-specific PIN diodes are open, you have receive but not transmit. ?My diode measures open, so it’s going to get replaced if I ever get one.?
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Al WB9UVJ
Pietro Molina
Kevin - K5KTM
Tony Murphy
Paddy G4MAD