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Re: Stripes on display
开云体育Hello All, ? So far, my 857 keeps on tick’n, however, we used to utilize some old industrial power monitors that developed stripes on the lcd displays and found that if the Zebra strips were just replaced, the displays would work without the stripes.? Zebra strips are used in place of wire conductors between the glass Indium conductors of the actual LED display and the PCB that drives it.? ? Fluke meters a while back also had the same problem.? I’ve had to get them replaced on my 87 from time to time.? Age tends to shrink the Zebra strips so the contact will become intermittent. ? This link is the first page that showed up on Google.? I don’t represent the company or its products in anyway. ? Zebra strips: ? ? Your mileage may vary though. ? --jeff Wb7aht |
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Re: CAT update blocked during TX
开云体育
And, if I'm not mistaken, you're supposed to keep transmissions very short when working satellites.
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Re: Stripes on display
Zack,
The short answer is, NO, there's no EASY way to solve this problem, except replacement of the assembly. Here's the longer answer, and the reason why. The failure is a poor or decaying soldered connection between the display screen and its mating circuit board, inside the control panel. To the best of my knowledge, no actual parts have failed, so replacement of components shouldn't be necessary. HOWEVER, re-soldering the pads requires a fairly complex set of soldering skills, and likely, specialized equipment. Not a trivial job, certainly not quick and easy. Do some searching, and you'll find lots of other threads about this around the Web, and huge amounts of mis-information and superstition-based answers. Good luck sorting it all out! |
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Re: CAT update blocked during TX
Peter: This behavior for several Yaesu radios (857, 817, 897) is mentioned in the SatPC32 documentation.? (Hints->Yaesu, see the Reame(Yaesu).txt file).? Manual tuning (front panel) works, but CAT-controlled Doppler correction disabled when PTT pressed. Recommendation is to keep transmissions short, especially when Doppler shift changing rapidly.
73 Steve KS1G? |
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Re: CAT update blocked during TX
Hello Yono,
I tried it here, and indeed, the 857 will not accept frequency change commands by CAT during transmit. I am pretty sure the CAT interface itself functions, as I use CAT command to switch between transmit and receive. So I guess it is designed this way. 73 Peter/PA3FQH |
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CAT update blocked during TX
Dear all,
While qso with a friend that uses a FT-857 thru a linear satellite, I noticed he always drifts upwards. He said GQRX was not updating the freq while TX and he has to release the PTT button between syllables so the radio catches up. Is this a known bug (CAT port is disabled during TX), or the CT-62 cable got RF interference during TX. Let me know your thoughts, 73 de Yono - YD0NXX |
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Re: Quickly change power levels
Thank you I learned something
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Leonard K. Pennock Sent: Friday, July 9, 2021 8:36 AM To: [email protected] Subject: Re: [FT-857] Quickly change power levels Grounding the brown wire in the power connector would drop maximum output to 10W. Leonard K. Pennock AD7AS Those who walk bravely through life, unafraid of loss or failure, find that they very rarely lose or fail. On 7/9/21 5:21 AM, Michael Dannhardt wrote: Hi. My Dad has a FT-857d and has recently installed an external |
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Re: Quickly change power levels
Grounding the brown wire in the power connector would drop maximum output to 10W.
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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 7/9/21 5:21 AM, Michael Dannhardt wrote:
Hi. My Dad has a FT-857d and has recently installed an external amplifier which needs a drive level of around 20W. So we are looking for a convient? (fast) way to switch the rig from full power out (100w) to a lower level. |
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Quickly change power levels
Michael Dannhardt
Hi. My Dad has a FT-857d and has recently installed an external amplifier which needs a drive level of around 20W. So we are looking for a convient? (fast) way to switch the rig from full power out (100w) to a lower level.
I thought the A/B stacked VFO would work but it doesn't seem to save the power level per VFO. Any ideas? FWIW - he has the fancy mic with all the buttons. Tnxs for any thoughts, Mike / KA4CDN |
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Re: Another newbie question - programming frequencies
Eric,
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I must be losing my mind.... I've got this thread being started by VK2DHV (who according to the ACMA database is David). All good - Stay safe. Cameron?
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Re: Another newbie question - programming frequencies
开云体育Hi Cameron, ? Stuart is the person who originally asked the question! Simple ACMA lookup. ? 73….Eric VK2VE. ? From: [email protected] <[email protected]> On Behalf Of Cameron McKay
Sent: Wednesday, 7 July 2021 15:24 To: [email protected] Subject: Re: [FT-857] Another newbie question - programming frequencies ? Eric, Zak et al (although I'm not sure who Stuart is)... ? ? ? Cameron
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