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Re: Yaesu FT450 final transistor issues?
I have had two and still have one 450, never had a problem with the finials. Troy ke4ska
By Troy King · #277 ·
Re: Full Duty Cycle radios
I have used an FT-950, FTDX-3000, and FTDX-101D running SSTV, AM, and RTTY at full power with no issues. AM ran with a 25-watt carrier. If I am running a contest, I use an amplifier even if low power
By Carl Foster - KB7AZ · #276 ·
Re: Full Duty Cycle radios
So, how would one know if there was a problem with the finals? Is there a test to see if they are OK? Sent: Tuesday, January 28, 2025 6:00 PM To: [email protected] Cc:
By Stiv Ostenberg · #275 ·
Yaesu FT450 final transistor issues?
Here what was recently posted on an eham.net review for a different radio: ".re: the FT-450 used at the same price...there is a reason... long history of losing the finals." Has anyone else heard of
By John Geiger AF5CC · #274 ·
Re: Full Duty Cycle radios
The way I look at it is it is not about specs it is about heat. That is why I love the temperature meter on the Ftdx101mp. I think most of the recent radios from Yaesu have that as part of the
By Larry Patten · #273 ·
Re: Full Duty Cycle radios
Yeah, what is the deal with that? My FT710 says it supports a 50% duty cycle, but then appears to retract that claim when running FT8, which I thought was almost exactly a 50% duty cycle. Sent:
By Stiv Ostenberg · #272 ·
Re: Full Duty Cycle radios
I was driving an AL-1200 so I could not overdrive the amp and got a good clean signal out. All yaesu radios must be carefully adjusted so they don't splatter. Very easy to do with a Yaesu. The newer
By Lee Mannchen · #271 ·
Re: Full Duty Cycle radios
Thanks for the reply.? That is good to know.? I did see in the FT950 manual that it was advised to run it at 1/3 to 1/2 power if making long digital mode transmissions.??? My FT450AT handled it
By John Geiger AF5CC · #270 ·
Re: Full Duty Cycle radios
I ran my FT-950 almost every day like that for 7 years. Never had a problem. sstv, ezpal, rrty, you name it, I ran it.
By Lee Mannchen · #269 ·
Full Duty Cycle radios
Has anyone seen a list, or have knowledge, of which Yaesu transceivers are rated for 100% power out for full duty cycle modes like RTTY and FM? 73 John AF5CC
By John Geiger AF5CC · #268 ·
Re: Yaesu FT-710
Another thing to look at is your antenna. If too much RF is being reflected back to the transmitter it might shut down to reduce the chance of damaging the radio. I would use a good quality antenna
By Dave KD2AYQ · #267 ·
Re: Yaesu FT-710
This is my suspicion. Do you have ferrites on all the cables (power, USB, etc.)? Digital modes are more likely to shut down your setup due to RF getting into the computer, radio, or even the power
By Donald Hellen · #266 ·
Re: Yaesu FT-710
What power supply are you using with the radio?? It might be going bad and not providing enough current or voltage.? Could also be the fuses in the power cord.? I have had fuses that check out ok
By John Geiger AF5CC · #265 ·
Re: Yaesu FT-710
Sounds like a power supply problem. A transmitter will shut down, if you overload its power source. Gary
By Gary Cook · #264 ·
Yaesu FT-710
Howdy Amigos; I bought an FT-710 about a year ago when I got my General license.? It has worked great so far, and I am using it in my work to promote Amateur Radio in the SF Bay Area.? Recently it
By Stiv Ostenberg · #263 ·
PS, Filters, manuals, and more FS
power supply, crystal filter, manuals and more For Sale: . Yaesu Crystal Filters: I have a variety of crystal filters available that fit Yaesu rigs. All of these filters work 100% like they
By Ken, W8EK · #262 ·
Yaesu FT450 items for sale
I have a few extra items that came with a Yaesu FT450D I recently purchased.? Love the rig, just don't need these extras: 1. a set of side rails with handles for the FT450 series of radios. These
By John Geiger AF5CC · #261 ·
FTM 7250 Connecting to Fusion
I have a 7250 and am having problem connecting to Fusion. I press P3 on mike fore WiresX and it does not connect to repeater, I have been on before, so I dO not know if I changed anything. Jim? ?
By James Neumann · #260 ·
FS: Yaesu FT890 parts radio
I have for sale a Yaesu FT890 HF radio that is a parts or fix up unit.? Case is in decent condition with some scratches on it.? It has no optional filters installed, and comes with the radio only,
By John Geiger AF5CC · #258 ·
FS Yaesu original operating manuals
I am helping a local ham close out his station and have a decent sized set of HF and VHF radio manuals. These are all the original operating manuals, not copies. Asking $10 each shipped by media mail
By John Geiger AF5CC · #257 ·