Hopefully this will keep this rig from ever again experiencing the dreaded ft840 pllunlock lcd blink. Yaesu ft840 brought in with a problem of radio would flash on the display and it would lose all rx and tx and audio. I believe that many rigs have been trashed over this which is a shame, because the repair is actually quite straight forward. Modifications for the yaesu ft840 ft840 general coverage transmit. That particular software was laboriously slow at downloading the radio data into the software. I have a yaesu ft840 hf transceiver in excellent condition that is looking for a new home. Yaesu ft840 ft 840 ft840 programming interface schematics for yaesu. The ft840 manual says cat requires 4800 baud, 1 start bit, 2 stop bits, no parity and no handshaking. Purchased for my yaesu ft817 in my car but decided after purchase to relocate ft817 to the house so no longer need the radio mate, so selling. Ft891 ft891 yaesu original ft891 hf50 mhz all mode analog ultra compact mobilebase transceiver 100 watts 3 year warranty by yaesu only 6 left in stock order soon. Free cat control software for yaesu ft100, ft100d, ft817, ft817nd, ft847, ft857, ft857d, ft897. This multimode transceiver has 100 watts, general coverage receive and 100 memories. Ham radio cat, psk31, ft8, jt9 and jt65 interfaces civ and.
A 12 db attenuator may be inserted for clear copy of very strong signals. During that time, i used it for hf on the weekends when not working. On tx it does draw about 7 amps but the external power meter shows no power being transmitted. Yaesu ftcable1kit cat and psk31 and digimode cable. Great solid basic radio, comes by default with crystal filter, loved mine. Ft1d radio programming software the rt systems programmer, admsft1d, allows you to program memory channels and menu settings of the radio. Unfollow yaesu ft840 to stop getting updates on your ebay feed. Home page icom interface shop yaesu interface shop kenwood interface shop xiegu wouxon shop. New lithium memory battery installed to cover another 10 years of operation. I am using the ft890 for several years now and i have always been very pleased with this small but well performing radio except for one problem. I did today talked on am and the audio report was great. This is what you need for the transceiver to operate on the nbfm 30 khz channels above the 29 mhz portion of the band. The yaesu md100a8x desktop microphone works great with several radio models. Repairing a yaesu ftmp mark v part 1 low receive, missing 6,18 db attenuation duration.
Ft840 was discontinued in 2005 so yes, it was still in production in 2003. The digitally synthesized local signals ensure clean. I know someone that has a ft840 and it sounds good on am. Hi, i have a yaesu ft840 that had previously had tx drop out intermittently. Choosing a backup generator plus 3 legal house connection options. Fc800 external remote antenna tuner for more demanding applications, the fc800 is a weatherresistant automatic. This site helps you to save the earth from electronic waste. I am amazed at how some amateurs compare this with a kenwood ts 590. The fc10 provides a compact, easytoinstall unit that is styled to match the appearance of the ft840 and will match a wide variety of antennas to within a 1. This modification increases the ssb output of your ft840 by 3050%. The rear panel has so239 antenna jack and other io jacks. Software cd with all the manuals, bulletins, pictures and mods. The vast majority of yaesu ft840 radios out there do not have the optional xf112a xf122a 6khz wide band am filter installed.
The next step is to add a usb port on the back to allow for cat control without an external box, and adding an audioin jack so that i can have the mic and the pc hooked up at the same time. It operates in all nine hf ham bands and features 31 frequency memories. Cat control with yaesu ft840 i just got a usb cat interface cable for my ft840 and im trying to get wspr to control my rig. I have a yaesu ft840 ham transceiver connected to a g5vr antenna. My 10 meter am useage of the ft840 clearly shows if you use a good mike even the stock one the radio sounds just fine on 29. One of the last nononsense hftranceivers around and still for sale today.
For compact base and mobile stations, the ft840 set the new standard for high performance affordable transceivers. If its made in 1993 the label will say yaesu, if its 2003 it will say vertex. The fault is easy to trigger and when done, it looks like a very extensive repair. Dvs2 fc10 fc800 fif232c fm747 fp800 fp1023 fp1030a ll5 md200a8x mh31 mmb20 sp6 tcxo4 yf112a yf112c yh77sta digital voice recorder automatic antennna tuner. Ham radio software usually allows you to choose which com port you use so ensure it is trying to access the. This desktop mic is equipped with a scan switch, ptt push to talk switch, high emphasis switch, a low cut switch and a special cable that can terminate to a yaesu 8 pin microphone plug or modular plug. I was running the ft897 the first time i used it on am. The beginners guide to software defined radio rtlsdr duration. Valley enterprises yaesu usb ftdi ct62 cat cable ft100, ft817, ft818, ft857, ft897. Incandescent meter light replaced with white led and intensity pot.
Need help with yaesu ft840 drm mod drm software radio. Find yaesu ft840 rigs and spare parts on ebay find the yaesu ft840 on amazon blending the high performance digital frequency synthesis techniques from the yaesu ft890 with the operating convenience and affordability of the ft747gx, the ft840 adds a choice of two optional remote automatic antenna tuners and a wealth of convenient functions. Racerx harley110 asked if the ft840 sounded good on am. However, that design did not work with yaesu ft840.
This home brewed interface may work for this radio. Ft840, and allows convenient automatic antenna matching. This is an rt systems programmer with all the editing ease and file interaction that you have come to love. You do not need to use aes as the yaesu dealer if youve got a yaesu amateur radio dealer closer to your home. I am looking for suggestions and user feedback regarding cat control. Bought a yaesu ft840 hf radio off ebay and it just arrived. I just purchased a yaesu ft840 with the cat hardware included. What was the last year of production for the yaesu ft840. Ft1d radio programming software yaesu radio software. Yaesu ft840 hf transceiver 100w in shape for sale online ebay. It operates way beter than my 101e, but im still wanting to get a better hf radio.
On local unit, connect tp2003 to ground switch radio on hold ssb and am down switch off switch on 02 off will appear on readout rotate main dial until 02 on appears. View and download yaesu ft840 service manual online. Locate the 50w100w micro switch located toward the front an. The ft840 uses a diecast rf power amp with thermally switched fan to ensure full power output up to 100 watts. A test of the dc supply rails showed the problem 5v dc rail was low with 4. Ft847 supercontrol is a cat software especially for the ft847 transceiver from yaesu. Update 20060720 the same problem exists with the yaesu ft840 and it can be fixed in the same manner. My modulation meter easly goes close to 100% with the stock mike i even tried a d104 cranked wide open all it did was allow the guy on the other end to hear the rattle of fans in. Behold the rear end of my now highly modified yaesu ft840. Cat control of yaesu ft840 and logging programs qrz forums. How to fix the frequency drift of the yaesu ft890 ft840. The only hiccup i ran into was on the software side of the house when running macmemoriesmanager. Unlike the big brother yaesus with pin 2 5v mic power, yaesu left out the pin 2 power from the ft840 as it was an entry level radiono frills and openly notes the md100 is not fully supported.
Make sure that you have configured your software to share the ptt and radio port, and set ptt control by rts. Yaesu ft840 service manual download, schematics, eeprom. The fc10s size and appearance is styled to match the ft840 and is an attractive addition to your yaesu station lineup. Service manuals, schematics, eproms for electrical technicians. Misc bhi radiomate for yaesu ft817 bhi radio mate radio mate compact keyboard for ft817. Yaesu ft840 repair although the ft840 is a very reliable radio there is one fault which has caught a number of hams out over the years. Dos program, large display of the transmit and receive frequency, digital smeter with memory, easy and quick operation in split, window for tnc operation if connected, spectrum analyser to check activity on a band. Unfollow yaesu ft 840 to stop getting updates on your ebay feed. Valley enterprises yaesu usb ftdi ct62 cat cable ft100. With owners manual, box, buffers and mh31b8hand mic. The compact yaesu ft840 has two direct digital synthesizers and rotary encoder that provide silkysmooth tuning.
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