Do you have the S9 reading on one specific?band or multiple bands?? I ask because I'm having similar noise issues but mostly on 40/20.
Andrew, KD5CQ
Compton, VK2HRX,
The S meter reading for the noise floor that I am experiencing?
Continuous S9 plus?
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Dan, NM3A,
????? I'll try those settings in the morning and get back to you. NR (noise reduction) setting (menu 049) and NB (noise blanker) setting (menu 063) previously only had the effect of muddying the waters.
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Compton, VK2HRX,
The S meter reading for the noise floor that I am experiencing?
Continuous S9 plus?
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Vic, WA4THR,
??? I did due diligence concerning battery operation and examine the mains. I did get some results but not nearly as much improvement as I had hoped for.?
The Clearspeech or CLRdsp devices are a possibility. Thank You for reminding me.
I'll avoid Martin's diversity noise reduction as long as I can because I've experienced good and null results over the years. So go figure.
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Got a BHI DSPKR connected to mine, whisper quiet on receive,?
Mick SA4MDN?
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I feel your pain. I am in a HOA here in FL. I use my 891 for POTA and backyard ops. But I have powelines running through my back yard so my noise floor is high 24/7. So I too operate mobile with the 857D and do POTA. No ideal for many but works great for me. Nothing better than working Australia or Japan from the mobile from FL. 73, Jeremy
KD4KZZ
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Have you tried the NR (noise reduction) setting (menu 049) and NB (noise blanker) setting (menu 063)? Also front panel menus MFl and MFp?
I agree that finding and eliminating the source of the noise is the real solution, but sometimes that's not possible. I used my 857D mobile and couldn't eliminate a lot of the noise when driving. Those settings helped tremendously.
Dan
de NM3A at mail dot com
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73, Dan
NM3A
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On the radio display what is the S meter reading for the noise floor that you are experiencing?
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Compton
VK2HRX
Sydney, Australia
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Of couse, the best is to locate the source and eliminate it. Some LED lamp supplies can be pretty bad, but it could be anything. You can try shutting off circuits one at a time while running the 857 on battery to see if you can narrow it down. The Clearspeech or CLRdsp devices are wonderful for reducing the noise, and can make listening a pleasure, almost like FM, but they do not magically improve the S/N ratio of signals, so you still might only actually hear the stronger ones. There are also noise cancelling devices (MFJ makes one) that take a sample of noise from one antenna, invert it and cancel out that noise on your receive antenna. I have heard they can be effective.
=Vic=
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At one time, I lived in a basement apartment, I didn't have ANY sort of antenna.
I Bought an ATS-120 and a mount, installed it in my car and did my radio hobby from the car, not ideal, but I had fun.
Good luck.
73
John VE7KKQ
On Tue, Dec 14, 2021 at 12:01 AM AF7XT < kopcicle@...> wrote: Okay so I have a sub optimal antenna in a sub optimal environment full of frying bacon, embedded in a jet engine, under a waterfall, overlapped by 100 MPH wind noise.?
Yes it's a FT-857D with about as clean as you can get lab supply (Lambda) attached to a horizontal loop under the eaves (yup, HOA) with a SGC SG-230 tuner protecting my finals.
I can hear strong signals but the hash is wearing me out. Listening to hf is all about pain for gain. How much can i listen to before my brain melts.
I don't care if it's non intuitive settings or esoteric add on magic boxes , just please , a little help here.
~AF7XT Dennis ?
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Okay so I have a sub optimal antenna in a sub optimal environment full of frying bacon, embedded in a jet engine, under a waterfall, overlapped by 100 MPH wind noise.?
Yes it's a FT-857D with about as clean as you can get lab supply (Lambda) attached to a horizontal loop under the eaves (yup, HOA) with a SGC SG-230 tuner protecting my finals.
I can hear strong signals but the hash is wearing me out. Listening to hf is all about pain for gain. How much can i listen to before my brain melts.
I don't care if it's non intuitive settings or esoteric add on magic boxes , just please , a little help here.
~AF7XT Dennis ?
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Actually, even smaller is the "flip-chip" diodes such as HSCH9251. They are used up to 300 GHz. They are 7 mils long. You can't solder them - you're not supposed to. Instructions state the solder will deteriorate the metal in the external contacts. I use silver epoxy such as Circuit Works CW2400.
73, Zack W9SZ?
On Mon, Dec 13, 2021 at 8:40 AM w9dkc < w9dkc@...> wrote: I did the same thing once but it was R1426. Lost FM which was working fine before I changed all 3 filters. Those are 0402 resistors which are VERY small (only 0201 is smaller).
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I did the same thing once but it was R1426. Lost FM which was working fine before I changed all 3 filters. Those are 0402 resistors which are VERY small (only 0201 is smaller).
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Thank You for telling on yourself. You may not realize how useful this information may be.
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Re: Low Speaker Volume 857-D
Follow up.? ?All working normally now.
None of the above suggestions made any difference (altho I never did check out the relay and capacitor on the main board.) Thank you for all your replies, though.
So I finally decided to do a [FUNC]+PWR ON reset. That did it! Volumes are back to normal now. Apparently, something I did changed the volume response.?
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73, Dan
NM3A
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Re: Low Speaker Volume 857-D
Funny. I just reinstalled my FT-857D in a newer truck. My screen was all zebra stripes. The audio was so low. I check wires and swapped external speaker. I checked the switch on the control head. Still no better.? I bought a new head unit from HRO due to screen and I had 2 broken knobs. The audio is 80% better now. I was going to use contact cleaner on speaker plug and see what happens.? Don't know if that helps.?
73, Jeremy Johnson KD4KZZ
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Re: Low Speaker Volume 857-D
Thanks, Tony!
Dan
de NM3A at mail dot com
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73, Dan
NM3A
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Re: Low Speaker Volume 857-D
FT-857 service manual download. The d model sis also available for download. The control head is the same for both models. ? ? ? http://www.repeater-builder.com/yvs/pdfs/yaesu-ft-857-857d-technical-supplement-2018.pdf ? ? Regards, Tony F. ?
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From: Daniel Walter via groups.ioSent: November 11, 2021 12:01 PM To: [email protected]Subject: Re: [FT-857] Low Speaker Volume 857-D ? J. D., I'll have to look into that. First I got to get a schematic and maybe a service manual, if I can find one. ? Dan de NM3A at mail dot com ? ? ? ? -- 73, Dan NM3A ? ? ? ? ?
-- +++++++++++++++ Tony VA7TF? VE7ACF
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Re: Low Speaker Volume 857-D
Tried exercising the jacks, but no change. Will look at contact resistances.
Dan
de NM3A at mail dot com
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73, Dan
NM3A
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AF7XT
Michael Newbury SA4MDN
Compton
Vic WA4THR
Tony VA7TF, VE7ACF