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Re: 20M noise on transmitt
Jk
¿ªÔÆÌåÓýWild guess says try different outlet. ?Poor Grounding at outlet.. Move power supply away from radio, ? Reseat microphone RJ45... On Oct 9, 2018, at 11:25 AM, thuffaker@... [FT-857] <FT-857@...> wrote:
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20M noise on transmitt
I am working portable at a relativizes house and found 20m has a digital noise on transmit. This is only occurring only on 20m and since I have nothing to test with have any of you seen this issue. My setup is the FT-857 a buddipole vertical and 50ft coax. My power supply is a powerwrx switching supply I have used many times.
Any Ideas would help. Thank you, Tim KM4ESU |
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strange issue
I have a strange issue with my 857, it stopped transmitting on 30 meters yesterday, now it will not power on, and just clicks like the relays are stuck doing something. Does this on both power supply and a 12 v car battery.? and the voltage drops on both like its shorted or something. any suggestions?? Andy, N3ZRA |
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Re: Reduced FM sensitivity.
Bill, Did you find a solution to your reduced sensitivity issue? Thanks, Paul, ve1dy ---In FT-857@..., <nz0tham@...> wrote : Recently the FM sensitivity of my 857D is greatly reduced on 2M and 440. ?I do not hear any crackling noises an those or any other bands/modes so not sure if this is the ceramic filter problem or not. ?Not sure if related but the CAT has also stopped working. ?If it is the ceramic filter could someone point me toward a fix procedure? 73, Bill NZ0T |
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FS: Yaesu 500Hz CW Filter: FT-817/857/897
MINT - Yaesu XF-115C Yaesu/Collins 500Hz CW MECHANICAL Filter. COLLINS Mechanical filters are NO LONGER Manufactured and SUPERB. This is a Narrow CW 455 kHz IF Filter. It eliminates noise and QRM on adjacent frequencies. Great option for your FT-817/857/897. $150.00 shipped. PayPal Required. Thanks for the bandwidth! Howard????? ? |
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Re: increasing intermittent static when squelch is open.
James Clark - and others - answered your question quite well.
There are several methods to accomplish the task -? mine is the easiest - but not so pretty :) Please look at the "Files" Section and find the folder "FT-857D AM Filter Fixes". Download the three PDF files (October 8, 2011) from "garyposs" - that's me :) The PDF file named "FT-857D? AM Filter Replacement" contains a full set of instructions (read carefully and understand) - with photographs - of how to replace the "static producing filter" - easily and not pretty. The other two PDF files are for reference and familiarity with the replacement filter. Please read and understand them as well.? Note - that 7 years later it remains working like a charm - Quietly !!! I did have to replace the LCD Display a couple of years ago - an interesting challenge - but quite doable. Perhaps I should write an article on how to do that task. I did take stet-by-step photographs but have not written the article. Otherwise my FT-857-D remains working quite well. To make the filter installation even prettier - follow the suggestion by Dave Mueller with his TIFF file from February 16, 2015 in the same folder - Thanks Dave - Good Job :)? You will need to completely remove the filter assembly and pins using appropriate de-soldering tools. In addition, you will need to add SMD components on the bottom side of the transceiver circuit board which requires it's careful remove and later re-assembly. The choice is you on how to proceed. Regardless of the method -? the results are well worth the effort !!! Good Luck and happy Listening :) |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/Measurements of TCXO-9 and equivalents.pdf Uploaded by : zbinio20022002 <sp3rny@...> Description : You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/China TCXO insight.jpg Uploaded by : zbinio20022002 <sp3rny@...> Description : Photo of Chinese TCXO insight You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/China TCXO Sincium.bmp Uploaded by : zbinio20022002 <sp3rny@...> Description : Made on HP8591E Spectrum Analyzer You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/China TCXO Ez-Radio.bmp Uploaded by : zbinio20022002 <sp3rny@...> Description : Made on HP8591E Spectrum Analyzer You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/China TCXO no name.bmp Uploaded by : zbinio20022002 <sp3rny@...> Description : Made on HP8591E Spectrum Analyzer You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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New file uploaded to FT-857
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-857 group. File : /TCXO and reference generators/YAESU trans_REF_GEN.bmp Uploaded by : zbinio20022002 <sp3rny@...> Description : Made on HP8591E Spectrum Analyzer You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, zbinio20022002 <sp3rny@...> |
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Re: Factory loaded frequency memories.
Thanks Mitch! It appears that the radio was untouched other than no frequency memories and menus at defaults.? From the articles I read on the Internet, the resets would clear the frequency memories and they had to be reloaded.? The term guard bands came into play so I assumed that there were factory frequencies and when it was reset, the previous owner thought he had rendered the radio useless and threw it away.? I should have realized that when I couldn't find a list that my understanding of the radio was flawed. 73 |
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Re: Factory loaded frequency memories.
Hi Bill, In the past I've seen just restoring the factory jumpers on the main board for the country of use (eg. US, EU, DE, JA, etc) to remove the MARS Mod, and a reset put them back to new, out of box condition. The usual reason for needing to program anything is when the MARS mod is in and they want the channelized 5MHz frequencies. The MARS mod clears these presets. Some radio's will have 2-3 jumpers that would need to be put back depending on the LOT Number of the radio and the mod that was done. I'm on my 4th one personally and the first 2 were the same, the third and forth ones are each different than the first 2, revision changes I suppose. I haven't seen a list for what you are wanting, only the 5MHz stuff. I do know Yaesu has on occasion replaced the serial eeprom when sent in for repairs. Mitch N4MF |
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