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FT-857D + MFJ-998RT: too much foldback, not enough …
https://forums.qrz.com/index.php?threads/ft-857d-mfj-998rt-too-much-foldback-not-enough-power-to-tune.580065/
K5VV Ham Member QRZ Page. MFJ-998RT is a remote tuner. It is RF sensing and needs 5-20W to initiate the tuning process (for some frequencies, it requires almost 20W). FT-857D has a very quick power foldback when SWR is too high. As a result, the output power is usually limited to about 10W. The problem?
FT-897D/857D - DISTORTED AUDIO REPORTS ON SIDEBAND
http://www.w1aex.com/897idle/897idle.html
FT 857/897 Power Amplifier Board (Accessible by removing the bottom covers) Addendum 1 - June 4, 2006: A little more than a year after making my initial adjustments, I rechecked all the resting current settings. The pre-driver, driver, and exciter stages were right on the mark.
FT-857USAfront
http://www.pilot-cb.ru/FT-857_Brochure.pdf
the audio passband, the DSP Auto-Notch provides a significant reduction in the interference level. If multiple carriers are present, the DSP will detect and notch all the carriers present. •DSP NOISE REDUCTION : The very effective Noise Reduction filter of the FT-857 utilizes as many as 16 noise- reduction algorithms, for use in a
FT-857: HF Mobiling - N6PET - My Ham Radio Journal
https://n6pet.com/1st-hf-mobile-ft857/
The Yaesu FT-857 is a little marvel. Crammed into the enclosure is an HF, VHF and UHF transceiver with most of the modern bells and whistles that anyone could want, and which can supply 100 watts on 160-6 meters, 50 watts on 2 meters, and 20 watts on the 440 MHz band. It is capable of operating in the CW, AM, SSB, FM, and digital modes.
FT857D Very Low Audio transmit | QRZ Forums
https://forums.qrz.com/index.php?threads/ft857d-very-low-audio-transmit.169113/
With DBF OFF, compression OFF, and microphone gain at around 30-40, have your friend listen to your audio (after you have assured yourself the antenna is not giving you foldback) and give you a critical report. If you have problems at this point, you need to resolve them before you start EQ or adding compression.
eHam.net
https://www.eham.net/reviews/detail/2432
Description: It is the world's first multi-mode high-power base/mobile transceiver designed to fitted with internal batteries (optional) for portable use. The coverage is HF 160 to 10 meters plus 50/144/430 MHz VHF/UHF. Receive is 0.1-56, 76-108, 118-164 and 420-470 MHz. 7.9x3.2x10.3 inches (200x80x263 mm).
DG2IAQ Modification Sheet YAESU FT-897 - RigPix
https://www.rigpix.com/yaesu/ft857-897_modcollection.pdf
ALC audio pumping Another big fault of the 857/897 design is the REV ALC which is documented on several ham radio forums too. The 897 reduces its output power when having a bad SWR. ... This is the set point for SWR foldback on the lower HF bands and the main tuning knob will change the numbers in the upper right corner of the display. Factory ...
Foldback Current Limiting – Little Secrets - Codrey ...
https://www.codrey.com/learn/foldback-current-limiting-little-secrets/
Foldback Current Limiting – Little Secrets. Wikipedia says Current Limiting is the practice of imposing a limit on the current that may be delivered to a load to protect the circuit generating or transmitting the current from harmful effects due to a short-circuit or overload. And, Foldback is a current limiting feature of power supplies so ...
Foldback - Media College - Video, Audio and Multimedia ...
https://www.mediacollege.com/audio/sound-reinforcement/foldback.html
Foldback. An important part of most sound reinforcement systems is the foldback system, also known as the monitor system. Foldback is a separate mix just for the performers, so they can hear themselves. Although the general idea is for the performers to hear the same thing as the audience, in practice foldback is usually tailored for each ...
Radio Peru FM - Android app on AppBrain
https://www.appbrain.com/app/radio-peru-fm/com.radiofmapp.radioperu
Radio Peru FM: Android app (4.6 ★, 500,000+ downloads) → Radio Perú FM is the most simple, fast and intuitive Peruvian radio player. You can listen to your favourite Peru...
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