Question about Yaesu POWEREX MH-C500Y Charger for FRS radios (VXF-10)

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Reinstating Yaesu 707 transceiver to original 100watt output

I recently purchased a old 2nd hand Yaesu 707 tranceiver in very good condition but found that it had been derated from original 100watt output to 30watt output and was wondering how to reinstate it. I have an Owners manual but it is not mentioned in that. Any help appreciated many thanks
ginder

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Check the resistor values around the finals and also around the stage that drives the finals and see if they differ from the schematic values.

Posted on Jun 03, 2009

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Can you connect a siris or Delphic this to a yaesu transceiver


most yaesu transceivers are not capable of tunning the wide band FM broadcast band needed to hook up sirus or delphi satellite radio

Nov 28, 2014 | Yaesu Radio Communications

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Transceiver signal interference


The FT-840 uses a die-cast RF power amp with thermally switched fan to ensure full power output (up to 100 watts). The digitally synthesized local signals ensure clean, low-noise transmitter output on all HF amateur band. There might be no AC line interference. it has strong Rf output. any AC line intersect does not affect its radio performance. Check and adjust RF power so to maintain proper output. some times more RF power generated at the output may cause interference. adjust Rf power..Even some unfiltered Noise getting the other end of the end may calso cause interference. Check for any Ripple voltages present at the output. Contact authorised service station for further Rectification. thank you shanth

Dec 23, 2007 | Computers & Internet

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How to wire a audio mixer deck to a radio tranceiver


I'm not sure if you want it wired to the input or output. You can connect the output of the transceiver(if it accepts an earphone plug) to the the input of the mixer using plugs you can buy form Radio Shack or MCM electronics on line.

Oct 06, 2014 | Yaesu FT-8900 Quad Band Transceiver

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I need a pdf of the manual, where can I get it?


www.manualslib.com > Brands > YAESU Manuals > Transceiver > VX-8DR I found one at the above site.

Jul 19, 2014 | Yaesu Quad-Band VX-8DR Submersible VHF/UHF...

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Need new USB 2.4 GHz transceiver for my wireless keyboard


I found a 2.4ghz tranceiver that I have no use for. Am broke but would take bottom dollar for it...

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How do i get expanded freqs on my ft1802 yaesu tranceiver


The FT-1802 is a 50 watt 2 meter FM transceiver. It can transmit anywhere between 144 - 148 Mhz (the FM portion) of the 2 meter ham band. It can receive anywhere between 136 - 174 Mhz without any modifications. There is a modification to enable transmit "out of band" below:

http://www.ham.dmz.ro/yaesu/ft-1802-extended-transmit-modification.php

There are few details about the results of this mod - typically these provide for transmitting on frequencies outside (above, below or both) of the 2 meter ham band. Transmitting outside of the ham band without a proper license for the frequencies in the U.S. is a violation of FCC rules.

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1 Answer

Find manual for yaesu ft2700rh


I have had one of these fine radios since I bought it new 25 years ago. I don't have the original manual but I have a copy of one. Send me your e-mail address and I'll scan it and send it to you.

N1ETN

Jul 01, 2008 | Computers & Internet

1 Answer

AC line interference


I experienced very similar or the same problem with FT-840. When power is inceased over about 50 W, an AM on RF signal arises. Even when TCVR is supplied from accu and connected to dummy load. Period of interferencing signal is about 7.5 ms (130 Hz), so it cannot be hum from mains. I have not opened the PA block yet but i guess, it could be caused by damaged capacitor(s). Jiri

Dec 23, 2007 | Computers & Internet

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