Put it in the System32 sub directory and then reboot your system so it will load the .dll
72/73,
Robin
W4IEN
SKCC? #7294
EM73vx
?
On 12/20/2022 5:27 PM Dave Tucker Nu4N <dwtucker19@...> wrote:
Does anyone know if JTDX will work under Windows XP? I have a laptop that I want to use for portable use, but it's the old XP. I keep getting a error of Kernal32.dll missing and I can figure out where it goes.
Any help would be appreciated.
Thanks Dave NU4N
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Does anyone know if JTDX will work under Windows XP? I have a laptop that I want to use for portable use, but it's the old XP. I keep getting a error of Kernal32.dll missing and I can figure out where it goes.
Any help would be appreciated.
Thanks Dave NU4N
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I prefer the Signalink simply because I have analog control of both input and output. Much more difficult with PC controls...
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Intermittent High SWR/No Power on 2m
I've had issues with a couple of SOTA activations recently with the FT-817ND. At the time I put it down to the antenna, but I've ruled that out now. The transceiver performed faultlessly today on 20m, 40m & 80m but when I attempted 2m I got high SWR. I tried two antennas. They are all connected to the BNC connector at the front. I know I wasn't transmitting because I had a station within line of sight that definitely would have heard me. This evening I plugged the FT-817ND into a power meter and dummy load. I observed high SWR on 2m using either the front or rear antenna connectors. It doesn't affect 70cm. All tests were conducted using FM. Interestingly however once I'd switched to HF bands and transmitted sometimes when I switched back to 2m everything was fine, and continued to be fine. After power down for a period of time the issue returns. Having read other posts I believe my first suspect is pin diodes. Referring to this post: /g/ft817/topic/44910018#95067From Don Taylor's response in that topic: IF so on Pin 8 of Q3003 on the PA Unit is a voltage called V-TX thatswitches the output of the PA FINAL thru to the 2 Meter Low Pass Filter.There it passes thru the Relay RL3001 which for 2Meter is closed from themoving contact to the Normally Closed (Black) contact which passes the TXenergy on to the Diode D3003 an HSU277 ( Pin Diode ) and from there on tothe front or rear Antenna select RL3015.Other than that, there is another Diode D3005, that enjoys going bad and itcan also cause he problem you are having.These are both on the bottom (B side) of the PCB. This diode turns on toprotect the RX when TXing. This is turned on from pin 4 on the Q3003.I believe I am having the same symptoms, more or less, so would these diodes be the first thing to try. Could there be a connector issue? I suspect not given that both front and rear ports are affected. Thanks, Mark.
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Re: 3rd harmonic on 2M. Any fixes?
On Thu, 08 Dec 2022 12:57:50 -0800 "simon" <simon@...> wrote: to make it into an epileptic style filter ITYM "elliptic" -- Brian Morrison G8SEZ
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Re: 3rd harmonic on 2M. Any fixes?
The analog fix is to put a 70cm trap/s onto your 2m transmit line. Here, there are stacks of UHF cavities available from old repeaters. Asking around would find them. If you have an LPF, you might be able to make it into an epileptic style filter by putting C across the series L's to make them parallel resonant at 440MHz, and thus create deep nulls. These might be gimmick caps (i.e twisted wire)
The problem is that it interferes with the downlink rig tuned about 1MHz down, causing hash noise.
The root cause might be that you are using a '705. It is a fundamental limitation of a "digitise the universe" type front end, that it will be overloaded at some point. An indication that this is the case is that if you put an attenuator in the '705 rx line, and the interference stops at some attenuation, then you have overloading.(or drops much faster than the attenuation)?? Not sure if the '705 has internal attenuator on UHF? If you swap the two radios i.e. RX with the '817 is it still an issue? The harmonic output of the '705 is probably not much different than the '817
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Re: Using the mic socket for datamodes on the cheap
Perfect! Thanks for taking the time to reply.
72/73
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Re: Using the mic socket for datamodes on the cheap
Martin - I have done something similar (actually using audio output from a laptop to my FT-817 to allow me to set up a "Zoom" call between my laptop and mobile phone and talk through the radio whilst away from it).? I used an audio adaptor lead plugged into the laptop USB then took the headphones output of the audio adaptor via a 2 resistor attenuator into the mic terminals of the FT817. The resistor network was 1.9kOhm in series with the audio output and 10 Ohms in parallel with the mic input. (The 1.9kOhms is acually 3000k in parallel with 5100k) - Note when I first tried this I had problems with rf pickup on the mic cable locking the radio into transmit - I solved this by placing a small audio isolation transformer between the laptop audio adaptor and the resistor network. If you keep the cables short and run the phone from an internal battery you may not have this problem. Hope that helps. Philip Williams G4KIL
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Using the mic socket for datamodes on the cheap
Hi folks - I'd like to tinker with using the headphone output from a phone, feeding the mic socket of the 817 (so I can use the rig's VOX facility).
Would be enough to use the settings on the phone (volume) and 817 (mic gain) to reduce the audio level to a which won't overload the rig?
I'm especially keen not to case any damage! If anyone else is using this method, I'd be interested to hear your solution.
Thanks and 73 - Martin, G4EFE?
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Necessary addition:
...the moral being "A low SWR 'match' doth not always equate to
everything being peachy" ?
On 12/2/22 12:15, Jeff WN1MB wrote:
toggle quoted message
Show quoted text
The physical size reduction availed by using toroidal versus air
core coils in tuners does have its downside!
Knowing the tuner's load tuning range and the approximate
antenna load presented to the tuner will go a long way towards
preventing such core heating issues - easier for the former, less
so for the latter, especially if using some random length of wire
on a variety of bands.
Jeff WN1MB
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The physical size reduction availed by using toroidal versus air
core coils in tuners does have its downside!
Knowing the tuner's load tuning range and the approximate
antenna load presented to the tuner will go a long way towards
preventing such core heating issues - easier for the former, less so
for the latter, especially if using some random length of wire on a
variety of bands.
Jeff WN1MB
On 12/2/22 11:00, Christopher Maness
wrote:
toggle quoted message
Show quoted text
Also, consider a small manual tuner with your
FT-817.? I have spent a couple of years using them.? The
convenience is nice if you QSY a lot, but they are less
efficient than air core coil tuners.? The ferrite can resonate
and get hot on certain solutions and waste lots of power.? I
have seen this with the SWR drifting with high duty cycle
modes.? The drift in SWR is due to the cores heating and
changing values.? I have even seen smoke come off the cores when
I had the lid off.? I was transmitting under the rated power.
Chris KQ6UP
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Also, consider a small manual tuner with your FT-817.? I have spent a couple of years using them.? The convenience is nice if you QSY a lot, but they are less efficient than air core coil tuners.? The ferrite can resonate and get hot on certain solutions and waste lots of power.? I have seen this with the SWR drifting with high duty cycle modes.? The drift in SWR is due to the cores heating and changing values.? I have even seen smoke come off the cores when I had the lid off.? I was transmitting under the rated power.
Chris KQ6UP?
Are we talking, Windows,? raspberry pi or Linux? Could you please post pics, or email me pics.? I've had difficulty with the digirig? working with the 817nd and z817.
Thank you,
KG6MTM
-- Thanks,
Chris Maness
-Sent from my iPhone
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Is WolphiLink still available?? I have one of those in my kit and use it with android phones or tablets and a bluetooth keyboard.? It somehow suits working with a portable rig like an 817
Are we talking, Windows,? raspberry pi or Linux? Could you please post pics, or email me pics.? I've had difficulty with the digirig? working with the 817nd and z817.
Thank you,
KG6MTM
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Are we talking, Windows,? raspberry pi or Linux? Could you please post pics, or email me pics.? I've had difficulty with the digirig? working with the 817nd and z817.
Thank you,
KG6MTM
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The digirig works nice. My only gripe with the FT817 is the audio comes into direwolf a bit on the hot side, but I have never really seemed to have any issues with it not decoding packets as a result. 73 de Chris Maness On Thu, Dec 1, 2022 at 6:40 PM Steve R via groups.io <oldjavadrinker@...> wrote:
I was looking at digirig for a possible replacement to the Signalink. I am curious how if it is possible to run digirig with the Z817 in configuration. It appears that the digirig uses the accessory out for CAT control. Accessory out is also the control cable for the Z817.
Is it possible to use the FT817 with Z817 and connect via digirig for data (Manual or Bypass Mode)? Does anyone have the digirig ?
Steve
VA3FLF / KM4FLF
-- Thanks, Chris Maness
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Yes; it is possible to use a digirig interface for the FT-817 simultaneously with the Z817 tuner. The Z817 has a pass-through port for CAT control of the FT-817 by additional devices. On the back of the Z817 one port is labeled "Radio" and the other "Computer." The "Radio" side connects to the FT-817. The "Computer" side connectsto the digirig. I can send pictures if that's helpful. Mike W8TAU On Thu, Dec 1, 2022 at 9:40 PM Steve R via groups.io <oldjavadrinker@...> wrote:
I was looking at digirig for a possible replacement to the Signalink. I am curious how if it is possible to run digirig with the Z817 in configuration. It appears that the digirig uses the accessory out for CAT control. Accessory out is also the control cable for the Z817.
Is it possible to use the FT817 with Z817 and connect via digirig for data (Manual or Bypass Mode)? Does anyone have the digirig ?
Steve
VA3FLF / KM4FLF
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Doesn't that tuner have pass through for PC control?
I have vague memory of 2 ports on the rear.
Steve VK2ARS
toggle quoted message
Show quoted text
-------- Original message -------- From: "Steve R via groups.io" <oldjavadrinker@...> Date: 2/12/22 13:40 (GMT+10:00) Subject: [ft817] Digirig and Z817
I was looking at digirig for a possible replacement to the Signalink. I am curious how if it is possible to run digirig with the Z817 in configuration. It appears that the digirig uses the accessory out for CAT control. Accessory out is also the control cable for the Z817. Is it possible to use the FT817 with Z817 and connect via digirig for data (Manual or Bypass Mode)?? Does anyone have the digirig ? Steve VA3FLF / KM4FLF?
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I was looking at digirig for a possible replacement to the Signalink. I am curious how if it is possible to run digirig with the Z817 in configuration. It appears that the digirig uses the accessory out for CAT control. Accessory out is also the control cable for the Z817.
Is it possible to use the FT817 with Z817 and connect via digirig for data (Manual or Bypass Mode)?? Does anyone have the digirig ?
Steve
VA3FLF / KM4FLF?
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Re: Should you leave the battery pack installed when not in use?
Thanks everyone, I think I'll remove it and stick to using my sealed lead acid battery for now.
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Re: Should you leave the battery pack installed when not in use?
On Tue, Nov 29, 2022 at 11:28 PM, 2E0PJY wrote:
I have an FT817ND with the upgraded battery pack (SBR-32MH 1900Mah), which I use /P but normally with an external Li On battery pack.? ...? is it ok to just leave it and then charged before next use?? My radio has the ... PowerPole adapter installed ...
You need to add a resistor in the PP adaptor to guarantee that the radio knows it is not connected to external power. If the radio thinks it is on external power, the CPU stays running to keep the serial port alive. On the '817ND they mostly are OK, (when it is cold), but the '818's frequently are not. After that, yes it should be OK to leave the batteries in. (btw, Yaesu power adaptors had this resistor AFAIK, so this is not a Yaesu design fault) see?/g/ft817/files/ZL1THH/FT817-BatteryCircuits.pdf
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Mark Wickens M0NOM #admin
Jeff WN1MB
2E0PJY