Re: Replacing TOKO Ceramic IF Filters
Hi Tony:
Could you give us the DATE CODE and LOT NUMBER of your FT-857D? I'm trying to figure out if Yaesu fixed this problem at some point during the rig's long production run.?
Thanks/73,
Howard, W6ZZ
https://www.qrz.com/db/W6ZZ
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Re: Replacing TOKO Ceramic IF Filters
Hi Tony
here you have some pic when i replaced filters on my 897 and also the VFO
I also made the filter mod, to, as it said, protect the filter against this issue.
I had not much tools for making this. now i would be better with my IR station.
73s
Olivier
F4FQH
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-----Message d'origine----- From: Tony Sent: Wednesday, March 16, 2022 10:30 PM To: [email protected]Subject: *** SPAM *** [FT-857] Replacing TOKO Ceramic IF Filters All: Need to replace the TOKA ceramic IF filters on my rig and was wondering if anyone knows where I might find a distributor in the U.S. Noticed a few overseas sources on eBay but would rather go with a local source. Also need to replace the same filters on an FT-897 which I believe uses the same board as the 857? Anyone have experience replacing these filters? Any de-soldering issues? Thanks, Tony
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Re: Replacing TOKO Ceramic IF Filters
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On 17 Mar 2022, at 03:24, J.D. Barron <jeter.d.barron@...> wrote:
?Relatively easy to replace. You need enough heat to heat the ground plane enough to desolder.
Be careful not to knock off the nearby parts.
The board will have to be removed, but it is not a difficult job.
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Re: Replacing TOKO Ceramic IF Filters
JD:
Thanks for taking the time to send the
parts list. Will give Yaesu a call tomorrow. It looks like these
are not manufactured by TOKO so they shouldn't have the same
issues.
Tony
On 3/16/2022 9:22 PM, J.D. Barron
wrote:
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Order then from Yaesu. They are very inexpensive at less than a
dollar each.
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?
H3900587
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CERAMIC
FILTER LTM455EW-A
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? ? ? $0.71EA
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5
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IN STOCK
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H3900589
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CERAMIC
FILTER LTM455GW-A
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$0.71EA
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5
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IN STOCK
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H3900588
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CERAMIC
FILTER LTM455HW-AD
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$0.71EA
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5
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IN STOCK
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Re: Replacing TOKO Ceramic IF Filters
Relatively easy to replace. You need enough heat to heat the ground plane enough to desolder.
Be careful not to knock off the nearby parts.
The board will have to be removed, but it is not a difficult job.
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Re: Replacing TOKO Ceramic IF Filters
Order then from Yaesu. They are very inexpensive at less than a dollar each.
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?
H3900587
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CERAMIC FILTER LTM455EW-A
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? ? ? $0.71EA
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5
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IN STOCK
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H3900589
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CERAMIC FILTER LTM455GW-A
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$0.71EA
|
5
|
IN STOCK
|
|
H3900588
|
CERAMIC FILTER LTM455HW-AD
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$0.71EA
|
5
|
IN STOCK
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Replacing TOKO Ceramic IF Filters
All:
Need to replace the TOKA ceramic IF filters on my rig and was wondering if anyone knows where I might find a distributor in the U.S. Noticed a few overseas sources on eBay but would rather go with a local source. Also need to replace the same filters on an FT-897 which I believe uses the same board as the 857? Anyone have experience replacing these filters? Any de-soldering issues?
Thanks, Tony
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Released the new version 1.1.0 of CatRadio.
Major updates:
AF Gain and Squelch slider
Tab with CW and FM functions
CW keyer speed
FM repeater shift and CTCSS tone
Red color VFO during transmit
SWR meter with log scale
CI-V Address entry in hex
Bugs correction and improvements
Download
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It is a shame it cannot use QT5 to be compatible with Debian 11
even, and slighter older and other linux distros.
Is the source code available to compile, rather than binaries ?
vk4tux
On 27/2/22 05:11, JD Erskine VA7OTC via
groups.io wrote:
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On 2022.02.23 14:11:53 (-08:00), Johnny IZ8EWD via groups.io
wrote:
CatRadio?is
the new multiplatform free software to control rig via PC. It
uses the Hamlib libraries and supports many models and
functions.
Please download here??and
reports bugs or suggestions.
_._,_._
Neat. For Windows, have you any idea of how robust the x64
version is?
At ver. 1.0 for the software, would there be an advantage to
using the 32 bit / x86 version instead?
Cheers es 73, John
PS Using Vivaldi as (one of my many) web browsers I easily had a
page translation.
--?
J.D. Erskine
VA7OTC CN88hk
Victoria, BC
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On 2022.02.23 14:11:53 (-08:00), Johnny
IZ8EWD via groups.io wrote: CatRadio?is the new multiplatform
free software to control rig via PC. It uses the Hamlib libraries and
supports many models and functions.
Please download here??and reports
bugs or suggestions.
_._,_._
Neat.
For Windows, have you any idea of how robust the x64 version
is?
At ver. 1.0 for the software, would there be
an advantage to using the 32 bit / x86 version
instead?
Cheers es 73, John
PS Using
Vivaldi as (one of my many) web browsers I easily had a page
translation. --? J.D. Erskine VA7OTC CN88hk Victoria,
BC
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CatRadio?is the new multiplatform free software to control rig via PC. It uses the Hamlib libraries and supports many models and functions.
Please download here??and reports bugs or suggestions.
|
Hi Bruce. When you say you measured the voltage at the connector, can you clarify which connector? I also assume the radio is working perfectly otherwise and when you select TUNE on the menu the antenna does not move but the display stays bright. In other words the 12v supply to the radio is capable of supplying the additional current to drive the antenna?
Have you tried connecting the power supply direct to the radio with short leads and see if the ATAS 120 works correctly then? What I am suggesting is there could be a poor connection in the supply on a fuse holder which is not allowing sufficient power to supply the radio and drive the antenna, as it does transmit low power to detect the SWR of the antenna during tuning and stops at minimum <2:1 swr.
As you have tried two different antennas on a separate power supply, can you confirm both the antennas behave in a similar manner driving up at approx 9.8v and driving down at 8.4v (assuming the Output of the power supply is variable).
I have an FT857 which is now 14 years old, I have overhauled the ATAS 120 so both work perfectly. Whether you have damaged any components internally has yet to be determined.
73 Bob
On 10 Feb 2022 18:08, Bruce <wd9ghk@...> wrote: Robert,
I have used the radio with two of the ATAS antennas in the past. This started about a year ago. I measured the voltage at the connector on the radio. I have tried the antennas with a power supply and they work OK. The radio is about 8 years old.
wd9ghk
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I will try it when the weather warms up. It is about 18 F outside now.
wd9ghk
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VSWR Adjustment 1. Connect a 100-Ohm dummy load to the HF/50 MHz antenna jack. 2. Tune the transceiver to the 14 MHz band in the CW mode, and set the output power to 10 Watts. 3. Select menu item “69: SWR2.” Key the transceiver and press the [A] key to set this parameter. 4. Connect a 150-Ohm dummy load to the HF/50 MHz antenna jack, and set the output power to 10 Watts. 5. Select menu item “70: SWR3”. Key the transceiver and press the [A] key to set this parameter. ATAS control voltage confirmation 1. Connect the DC voltmeter to the HF/50 MHz antenna jack. 2. Select menu item “71: ATAS.” 3. Press the [A] key, and confirm that the voltage is 9.0 to 10.1 Volts. 4. Press the [B] key, and confirm that the voltage is 7.5 to 8.5 Volts. 5. Press the [C] key, and confirm that the voltage is more than 10.5 Volts.
You might check the protection diode on the tap from the antenna jack. The ANCV and ANNG are from the CPU (I think I did not trace them back, but probably a good guess). Q3004, 3006, 3013, 3029, and 3031 are involved with sending the correct voltage through L3074 and L3075 as the ANT signal.
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Robert,
I have used the radio with two of the ATAS antennas in the past. This started about a year ago. I measured the voltage at the connector on the radio. I have tried the antennas with a power supply and they work OK. The radio is about 8 years old.
wd9ghk
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Re: new call sign displays and bluetooth cat interface
I did not know advertizing is allowed here?
Can we all stuff the list with our advertisements? I could sent ton of stuff on daily basis.
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On 8.2.2022. 15:02, VE2DX wrote: Hello Gang,
Here are my new Acrylic Call Sign Displays, with Dual LED Zones and
--
73 de Pedja YT9TP
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new call sign displays and bluetooth cat interface
Here are my new Acrylic Call Sign Displays, with Dual LED Zones and FT8X7 Bluetooth interfaces.
Drop-in to WWW.VE2DX.COM or contact me at ve2dx@... if interested.
?
73Richard VE2DXLead Designer and PresidentWWW.VE2DX.COM”From Canada 2 the World!”ve2dx@...
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Re: Yaesu TCXO-9 High Stability Crystal
Be aware that likely the cinese cheap tcxo unita? are NOT crystals but they have a PLL inside. They should be charachterised for spurii and phase noise, this should have a consequence at least regarding dynamic range.
Is somebody able to provide measured data on that?
Vr
Giuliano, IV3DLW?
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Where are you measuring this voltage? Depends which way you are driving the antenna, Voltages the radio applies to the ATAS antenna are 8.36 volts to move down, and 9.76 volts to move up. There is an interface board inside the base which senses this voltage from the radio and determines the direction of the motor. It all relies on an SWR sensor to deteine when the motor stops <2:1. If its the first time you have used it with the radio it will go through initialisation stage which drives it to one end of its travel and sits there with the motor turning but there is a slipping clutch to stop damage to the gears. After the initialisation it will drive the opposite direction and should stop when the SWR is <2:1 If it drives to the other end the SWR is too high and further investigation is required, poor earth being a main factor. Otherwise it could be a poor connection on the base or the coax plugs.?
On 7 Feb 2022 15:54, Bruce <wd9ghk@...> wrote: Yes, I said low voltage. In order to use the ATAS ?antenna the rig should put out 8 volts. Mine only puts out 4 volts. Any ideas? wd9ghk
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Yes, I said low voltage. In order to use the ATAS ?antenna the rig should put out 8 volts. Mine only puts out 4 volts. Any ideas? wd9ghk
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W6ZZ
Dan
John D Erskine VE7MHI VA7OTC
YT9TP - Pedja