2024 Fan on 991a when run

Fan on 991a when run

Author: vigr

August undefined, 2024

WebThe RF Amplifier in the FT-991A provides a clean and solid 100 Watts of Operating Power (50 Watts VHF/UHF) and is combined with a large heat-sink and forced air automatic cooling fan to increase operating time and prevent overheating. Compact, Lightweight & Portable WebFeb 8, 2024 · VA2KRB Kelly. Feb 8 #2518. I have had my FT-991a for approximately 9 months and up until 3 days ago it worked fine on both HF and VHF/UHF. Now it no longer transmits on HF in any mode. I was using it primarily for FT-8 when it stopped transmitting. VHF/UHF are fine. HF receive is fine. Antenna setup appears to be fine (ZS6BKW/G5RV …

8 Reasons to/NOT to Buy Yaesu FT-991A - The American QRP Club

WebApr 11, 2024 · Bryan; Like my Icom IC-7100, the built-in sound card hardware on the FT-991A is very probably limited to a 3KHz bandwidth for rx. For the “9600 bps Packet” data-comm capability, required for VARA FM WIDE, you’ll need to have at least a 5KHz tx audio bandwidth, and the sound-card output must be routed directly to the FM reactance … WebThe FT-991 is the next generation in all mode, all band MF/HF/VHF/UHF. transceiver with C4FM (System Fusion) Digital capability. The FT-991. includes multi-mode operation on CW, AM, FM, SSB, and Digital Modes. (Packet, PSK31, RTTY and C4FM), with 100 Watts of HF/50mhz Capability. (50 Watts VHF/UHF). bob the camper

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WebSep 18, 2024 · Working with CODEC’s on FT991A and Win4 Yaesu Suite Software Laptop Sound Card West Texas Video Gates (KI5JUF) 1.76K subscribers Subscribe 1.6K views 1 year ago This video … WebI use MegaWatt S-400-12 ($69 shipped via eBay sellers) power supplies for HF, VHF, and UHF Ham gear with great results. The S-400-12 is overkill for most single mobile transceivers so a smaller S-350-12 unit should meet your needs unless you plan to run a solid state 100 watt rig. Novexcomm makes a rack-mount for the FT-991. WebI've seen postings and YouTube videos of the various FT-991A settings for digital modes in general but I don't see any specific to PSK-31. For example, they all say to set the menu item 062 (Data Mode) to "Others" but there is also a "PSK" option for that menu item. Interestingly, depending on whether I set it to "Others" or "PSK", depends on ... clip top mp3

8 Reasons to/NOT to Buy Yaesu FT-991A - The American QRP Club

WebHave others seen this issue? If so, is there a fix for it? I do run it on FT8 a lot, but there are also plenty of times it is sitting on received and hasn't transmitted for a couple of hours, so that should cool it down from any FT8 sessions. The fan does come on during transmit so … WebWhen cold, the fan does not run when transmitting. ... I'm interested in a 991A. A question I can't find an answer to anywhere it seems. Does the 991A fan turn on each time the 991A is transmitting or only when it's getting hot ! :-) 73, stay safe. More. All … clip top containers plasticWebJun 28, 2024 · Occasional no power out on FT-8. Ray Luedecke, WR5AY. 6/28/21 #1791. I just got off of the 24 hours of Field Day running my 991-a in the field for it's maiden voyage. Some background... The generator during the event would run about 5 hours then it quits. Fill it up, restart, then do all of the WSJT-x restart, JTAlert restart... bob the canadian

"WebNov 1, 2024 · Regarding fan volume flow rates, the fan in the 991a does not run in open air. There's resistance to the flow. The correct comparison is to look at the fan curves (flow rate vs. static pressure). If the Sunon curve is always above the original fan curve, then it will provide more air. " - Fan on 991a when run

Fan on 991a when run

VARA FM and the Yaesu FT-991a sound card - groups.io

WebMar 31, 2024 · Thee 991A will run just fine from a 12V car battery or for shorter periods of time from large motorcycle battery or Li-Ion like this one: 12V, 12Ah LFP Battery (ABS, BLF-1212AS) When I'm camping I run a radio and 500W HF amp from a single 100AH battery with a few solar panels and the deep cycle battery was $87 at Costco. WebThe FT-991A features an completely analog fan control, reacting in realtime to temperature conditions. By reading the FT-991A schematic: The Temperature is measured in both V/U and HF boards by a LM20 sensor, providing THVU and THHF signals respectively.

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WebIt's been awhile since I've run FT8 on the 991a. I seem to vaguely recall having some kind of a problem with Data-USB mode and I just switched to upper sideband instead of Data/Sideband. Try that instead and see if it makes any difference. WebI know the settings in the radio need to be changed, I have found plenty of "how tos" for the 991, but not the 991 A,, the menus are different. I can't help you specifically with the questions, but if no-one is able to point you to a how-to, you could do the meticulous step of opening up both user manuals and comparing the options/menus.

WebFeb 19, 2024 · Check the air vents on the computer for dust or debris. The air vents may be located in different places depending on the computer model. See the User Manualof your Dell computer. Use a can of compressed air to remove dust or debris from the air vents, dust filters (if any) and cooling fan fins. http://www.craigwilliams.com/radio/ft991a/index.html

http://www.craigwilliams.com/radio/ft991a/index.html WebJun 26, 2024 · An excellent 991A user guide K7FLA's Winlink/RMS setup notes Software control package for 991 and other Yaesu radios Use with radios with IF out or with an RSP SDR radio. F6ECN Programming and Display Freeware Programming for the ISS voice repeater Setup for VARA HF Return to W6CAW Main Page

WebJul 28, 2024 · No ALC indication on 991A running FT8; × Close Search Search Cancel Date Date 1 - 12 of 12 previous page next page No ALC indication on 991A running FT8 David Reinhart #1455 Hello all, On 10M, my 991A won't show any ALC indication at all running FT8, even though power out is showing up at around 100W. All the other bands …

WebI got some action on HF today, I only took a few clips of it and put it into a video. The screen and sound of this radio are just amazing. The camera will ne... clip to pocket camerasWebYes, the 991a has an internal antenna tuner, but it only works on a Standing Wave Ratio (SWR) match of 3:1 or less (a perfecr match is 1:1). Note: an antenna tuner matches the impedance of the antenna to the impedance of the radio and this is not the big knob on the front to change the frequency (I did not understand this difference the first ... clip top canning jarsWebMay 25, 2024 · In Device Manager right click the port and select. Properties. In the Drivers tab click the button labeled. Roll Back Driver. Should that fail or the button not be enabled the first step to. starting over is to use the. Uninstall Device. button on the same tab sheet. Disconnect the rig, reboot the box, and. bob the canadian daily routineWebFan Control. The FT-991A features an completely analog fan control, reacting in realtime to temperature conditions. By reading the FT-991A schematic: The Temperature is measured in both V/U and HF boards by a LM20 sensor, providing THVU and … bob the canadian english bob the camper mora campgroundWebFeb 4, 2024 · For this week's video, Gary demonstrates how to use digital modes on the Yaesu FT-891 using the SCU-17.Yaesu FT-891 HF/50MHz 100W All Mode Transceiver:https:... clip top purses ukWebFeb 10, 2024 · Simply put, the FT-991a is the upgraded version of the older FT-991 from Yaesu. The FT-991 was created to be an all-band transceiver (MF/HF/VHF/UHF bands) with a digital screen. The FT-991a retains all of this capability as well as the same multi-mode operation and digital modes. They also come with a beautiful and easy-to-read high … bob the canadian cars