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One of my buddies is selling his 847, but it's one of the unidirectional models. Will I still be able to take advantage of doppler tracking and digital modes with it? Or do either of these require bi-directional CAT control? I'm not too pressed about seeing the frequency on the screen, just about it actually controlling the radio. Needless to say I've been spoiled with USB CAT control with my 7300 for some time now.

Hi Guy's n Gals. I recently purchased a FL-7000 & was wanting to interface it with my FT-847. Was wanting to know if anyone has interfaced their FT-847 with a FL-7000 & could let me know the pin-outs for a interface cable, or where I may be able to get one from. Your help is greatly appreciated. Best 73 Mal J Whitby VK2MW

Hi All, A dumb question perhaps on the surface, but when transmitting AFSK data via the rear port of the 847 And not using CAT mode for PTT (as I gather CAT mode expects mic audio through the mic socket not the rear port) should I actually be seeing RF power going out on the wattmeter ? or just the [USB] [CAT] and [DATA] indicators please ? set up is Xubuntu desktop---scu17---FT847 {Hamlib} Tuner unplugged (tick in the box) * CAT function is working tuning the rig fine * SCU-17 getting audio to the linux PC * SCU-17 is pushing audio from linux to the 847 (verified with a double headphone adapter, and headphones . Good levels (can nearly blow my ears off) PC to radio. * PTT is keying, [USB][DATA] indicators turns on, but nothing deflecting the wattmeter even with the SCU-16 volume level at MAX , and no replies to my CQ's ;-) have I missed a setting perhaps?, a rig fault ? or some other overlooked factor ? Many thanks in advance de CQU

Hi All Thanks for adding me to the group. I have a problem with my FT847 when trying to run FT8 on VHF. I have been using the FT847 to run 2m FT8 with a G4ZLP interface into the Data jack on the rear of the radio with no issues for a few years. Recently, the waterfall would occasionally go blank, but then start working again. A few weeks ago it stopped receiving and hasn’t worked since. I suspected the cable, and have replaced with a new one from G4ZLP today. I still cant get any RX on the waterfall. I looked in the settings of WSJT and see that Transmit Audio Source is set to Front/Mic but is greyed out and unable to change to Rear/Data which I would have expected the setting to be. I have not changed this setting, and as above, I have used this Cable/rear panel configuration since going on 2m FT8. Is it possible that the rear data jack has gone faulty? Should the Transmit Audio Source be set REAR / DATA and if so how when greyed out? I have put a wire into the HF Ant port in an attempt to see if it will RX anything, I am HEARING 20m FT8 but not a jot on the waterfall. I have also run HF from my FT5000 on the VHF port of the interface and that decodes so I cant see it being the interface at fault. Running WSJT-X v2.7.1 rc7 Any help is appreciated 73 Pete G4RRM

Hi all, I have a strange problem with an FT-847 and hopefully someone has seen this before and can help: I have an FT-847 that works fine EXCEPT for an issue with turning it on or off. I replaced the power switch but the issue I have has nothing to do with that which I was hoping it did. When I connect my power supply to the radio and turn on the power supply without turning on the radio I can hear what sounds like a relay click in the radio but nothing happens, just the click. Then when I push in the power button to turn the radio ON nothing happens for maybe5-10 seconds and then the radio comes on and works. If I push the power switch to turn the radio OFF then the display still stays lit up, display looks fine but nothing works, no buttons, no changing of frequency with the VFO, it's in a catatonic state. If I push the power switch back in again to turn the radio ON (even though it's all lit up) then a few seconds later sound and all controls etc come back to life. If I leave the radio on when it's working and turn off the power supply of course the radio shuts off and when I turn the power supply back on when the power button on the radio is in the ON position it starts right away and performs fine. Any help appreciated. Thanks, Adam Adam Farber W4AJF Cooper City, FL

PRICE REDUCTION!!!! NEW PRICE $42 + $6 SHIPPING (us) Hello, Up for sale is an Yaesu DSP Board for FT-847. This is the original Yaesu DSP Unit. It has been tested working. I no longer have a use for it since I now have an FT-857 and FT-450D. Price $55 shipping to USA address $6. NEW Price $42 shipping to USA address $6.

It appears my advert has caused members some sort of irritation, I have therefore deleted it and the comments posted. Leighton GW3FSP.

Hi, I do have 847 and a Digimode-4 interface (the one for the 847), what is the setting needed on the 847 and PC (Wxjt / Jtdx) to make it run? Thanks Nimrod 4X1BG

Hello to the group. I'm a new member. I just acquired an FT-847 and am trying to locate the optional Collins RX filter. It is the YF-115S-02. Anyone have one laying around that you would sell for less than the King's ransom? Or do you know where I could find one? Thanks for any help. 73, Butch...K3AFR

Hello 847 owners. I have some troubles with my 847. I experience a low volume in rx SSB, that I fix with a capacitor bypass , but remain a fault in DSP-NR only in SSB and CW (FM/AM works well). When the NR switch is depressed the signal disappear in the speaker (Only in the AF stage - Smeter ok), I supposed a fault in IC BU4066 SSB/CW/AM/FM switch but, after the replacement of IC Q1087 the NR fault persist. Following the schematic another IC ( Q1115) act like switch between input/output of dsp, but before desoldering (SMD is not easy to desolder), I would like to know if somebody have fixed this kind of fault. Service manual supplied from Yaesu is very poor over this. Many thanks for Your support over this topic. 73 Giuliano IZ3PSL

HF+6 fault help. My 4m modded 847 has suddenly developed a TX fault affecting hf&6 only 2/70 are fine. when tx-ing on any hf band or 6 there is about 50% power all modes and a horrid hum/buzz on the output. anyone had this experience? Like Comment Send

I recently picked up a non-working 847 to replace the display on mine. The numbers on my 847 were losing some of the segments but the inoperable 847 had a good display. It was an easy swap and now my 847 has a good display. The OP I bought the salvage 847 from told me he had purchased it from an estate sale but the rig was 'deaf' when he connected an antenna and powered it up. I hooked it up to a watt meter and dummy load and the rig will not transmit on any band. I started the alignment procedure and discovered the PLL adjustments showed minimal voltage (.022 volts) at TP20001 and would only change a few thousands when I adjusted T2001 through T2005. I am wondering where to go at this point to start troubleshooting this issue. Is it worth pursuing trying to repair this non-working rig or put it on the shelf to salvage parts from in the future? 73, -- David Rutledge AL5M

I have noticed that I can have the 847 on for a while and then when key the CW key, the speaker volume suddenly increases. Anybody else experience this? It don't know if the receive sensitivity has gotten better or not.

The following files and folders have been uploaded to the Files area of the [email protected] group. /FT-847 Manuals/Corrections SM page 3-4.pdf By: Erik Rothuis <erothuis@...> Description: Correction and additional info on service manual page 3-4, about FM IF Adjustment and Carrier Frequency Adjustment

I am looking for a parts list of the hf pa unit, because in the diagram a number of parts are marked with *** and no value. Such as R5030, R5031, R5013, C5143, and R5038.