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Re: Another look at the Yaesu FT 857D
I agree...mine fires up in 1 or 2 seconds...on the go! On Tue, May 5, 2020, 6:26 PM Bob L via <wa7dxz=[email protected]> wrote:
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Re: Another look at the Yaesu FT 857D
Bob L
开云体育Im confused. I turn mine on, its on the last freq, mode,power, etc that I used. Change bands, same thing.?? , what checklist are you talking about? Can you clarify your comment? Bob wa7dxz Sun City AZ Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: mick smith <michael.newbury@...> Date: 5/5/20 1:03 PM (GMT-07:00) Subject: Re: [FT-857] Another look at the Yaesu FT 857D Every time you start this radio up, you’ll have to go through a checklist of steps that can start to get tedious with daily use. Mick SA4MDN |
Another look at the Yaesu FT 857D
Carl Moon
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Amateur radio, which is also known as ham radio, is a popular hobby worldwide, but choosing the perfect model for your needs can often seem impossible. You typically need to try out a radio so that you can get an idea of whether or not it’s worth your money, but we’re going to try and do the next best thing.
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In this article, we’re going to present our in-depth review of the FT-857D from Yaesu, so you can figure out whether or not it will get the job done.
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Re: no AM TX
Is the VFO set out of band? K3CLT Chuck Tobias
On Saturday, May 2, 2020, 04:37:05 AM EDT, Michael <michael.wohlfarth@...> wrote:
[Edited Message Follows] TNX for the ideas so far.Even in the lowest setting there must be some TX output to be measured by a power meter. That's not the cause. I already went through all menu settings. Meanwhile I found out there must be some mW output which my power meter does not display. With another RX I can detect a carrier and hear the modulation. May there be a problem with the ALC? The meter doesn't show any ALC on AM but on FM.? I think on AM there also should be almost some ALC be displayed. Could anyone please verify this? 73, Michael |
Re: Zebra Stripes fixed in my 857D
No improvement. I'm going to try one more technique using a soldering iron. meanwhile, the replacement I ordered from Radioworld in the UK is "dispatched" to quote them! This was a very good deal as i stated before due to current exchange rates. I fear these displays will become scarce soon. Sending the display back to Yaesu for repair would likely have cost double what I paid factoring in including shipping each way to Yaesu. The link to the replacement is in my previous post - I'll let all know how that turns out.
73, Howard |
Re: no AM TX
TNX for the ideas so far.
Even in the lowest setting there must be some TX output to be measured by a power meter. That's not the cause. I already went through all menu settings. Meanwhile I found out there must be some mW output which my power meter does not display. With another RX I can detect a carrier and hear the modulation. May there be a problem with the ALC? The meter doesn't show any ALC on AM but on FM.? I think on AM there also should be almost some ALC be displayed. Could anyone please verify this? 73, Michael |
Re: problem with pkt mode in 9600 baud
I have one variant similar to signalink. Is a Cat/data interface Sm4xiu.?
Yes, is a possiblity that the isolation transformers, can be a source of problems. But now I jumpered it. I have made new tests, and I obtained connections ok, at speed of 7200 bauds in the UZ7HO highspeed sound modem ( with the rig in 9600 mode ). But no at 9600.?
I have good rx, but no TX.
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Caution: the 857 rig have two rx outputs in pkt mode: One pin? for rx in 1200 and other pin rx pin 9600, in data connector. And only one pin for tx in 9600 and 1200. Yes I put a swtich for switching audio 9k6 to 1k2.
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I suspect that the problem is that my usb sound cards (? I? am trying two models ) have a line level output sufficient for 1k2, but? with very low level of signal for 9k6. In fact one of the two have a little more high level than the other.
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I see in the rig with mod indicator at the display, the better sound card, only comes to 1/4 of the modulation scale of the meter.?
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Looking the cat port radio specs. I see the tx input of the rig, have a signal of 1Vpp 10k Zin. I suspect that in general the usb sound cards line level don't have this level of signal. I will measure later, with a oscilloscope the level of signals.
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If this suspect is correct I will contruct a little preamplifer for example with operational amplifer ( non inverter amplifier with single power supply with variable gain).?
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73's? ? ? |
Re: no AM TX
开云体育Max power on AM for FT-857D is 25W.? Mark VK2MOH On 1 May 2020, at 08:46, Hanford Wright <joh69@...> wrote: ?Michael It is menu #75 forgot that sorry
Best Regards Hanford R Wright WA4LZC CCA# AC11-12590 y please pardon my typos.On Apr 30, 2020, at 18:15, Michael <michael.wohlfarth@...> wrote: ?Dear all, I recently bought an used 857D that does not tx in AM mode. This is not really a big deal for me as I usually do not need this mode. On the other hand I am curious finding the cause and maybe fix it. While pressing the PTT the trx goes in tx, the relais is clicking and the red light is on, but there is no output power. Any ideas? 73, Michael DF9TZ |
Re: no AM TX
开云体育MichaelIt is menu #75 forgot that sorry Best Regards Hanford R Wright WA4LZC CCA# AC11-12590 y please pardon my typos.On Apr 30, 2020, at 18:15, Michael <michael.wohlfarth@...> wrote:
?Dear all, I recently bought an used 857D that does not tx in AM mode. This is not really a big deal for me as I usually do not need this mode. On the other hand I am curious finding the cause and maybe fix it. While pressing the PTT the trx goes in tx, the relais is clicking and the red light is on, but there is no output power. Any ideas? 73, Michael DF9TZ |
Re: no AM TX
开云体育MikeCheck your menu go to RF power while in AM and check and see where it is set. ?Should be set to 100. ? Best Regards Hanford R Wright WA4LZC CCA# AC11-12590 y please pardon my typos.On Apr 30, 2020, at 18:15, Michael <michael.wohlfarth@...> wrote:
?Dear all, I recently bought an used 857D that does not tx in AM mode. This is not really a big deal for me as I usually do not need this mode. On the other hand I am curious finding the cause and maybe fix it. While pressing the PTT the trx goes in tx, the relais is clicking and the red light is on, but there is no output power. Any ideas? 73, Michael DF9TZ |
no AM TX
Dear all,
I recently bought an used 857D that does not tx in AM mode. This is not really a big deal for me as I usually do not need this mode. On the other hand I am curious finding the cause and maybe fix it. While pressing the PTT the trx goes in tx, the relais is clicking and the red light is on, but there is no output power. Any ideas? 73, Michael DF9TZ |
Re: Zebra Stripes fixed in my 857D
CA is Dry, but all 1000 miles of Beaches and their parking areas are Closed! I've experienced?excellent propagation in the past from on top?of the Bluffs overlooking the SoCal beaches. /s/ Richard KI8MYJ On Thu, Apr 30, 2020 at 12:15 PM n8yg via <n8yg=[email protected]> wrote: Yeah wet here today as well. Hope it all goes well Howard.? --
/s/ Richard _________ |
Re: Zebra Stripes fixed in my 857D
Try call Yaesu directly. That is the route I went when both mine had zebra strips and Yaesu was cheaper than the third party places.
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Leonard K. Pennock AD7AS Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. On 4/30/20 11:32 AM, Howard Waxman, WZ4K wrote:
Joe - here is a much better alternative: |
Re: Zebra Stripes fixed in my 857D
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Brad - I did - waiting for the monsoon to subside before I swim out to the truck! |
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