PRICE REDUCTION!!!! NEW PRICE $42 + $6 SHIPPING (us)
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Hello,
Up for sale is an Yaesu DSP Board for FT-847.
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This is the original Yaesu DSP Unit.
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It has been tested working.
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I no longer have a use for it since I now have an FT-857 and FT-450D.
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Price $55 shipping to USA address $6.
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NEW Price $42 shipping to USA address $6.
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It appears my advert has caused members some sort of irritation, I have therefore deleted it and the comments posted.
May I suggest that if you have nothing constructive to say, don't.
Leighton GW3FSP.
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I've decided to part with my 847. Ser. # 3G760154. It is in great condition. Everything works as new. Looks nearly new also. I have the original manual, power cable and hand mic. Also included is the elusive odd 5 pin din HF amp keying cable and a very nice vinyl, embroidered cover. I do not have the original boxes so I'd prefer a local pick up or a meet and greet at a reasonable and agreed upon distance.? Priced for a quick sale at $575. Shipping would be extra and I'd have to round up some boxes.? PayPal is preferred.? Email offers off the reflector pls.??
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Thanks all & 73,
Butch...K3AFR (good on QRZ) or:
k3afr@...
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VHF / UHF FT8 on 847 with Digimode-4
Hi,
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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?
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Thanks
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Nimrod
4X1BG?
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Re: COLLINS FILTER YF-115S-02
The filter for the 847 is not common.
Filter for ft1000 is more frequent.
However, there are other radios available, such as Kenwood. A narrow 455 filter from a Kenwood will work, and work well. It's just a question of finding space for it, and connecting two pieces of coax to it.
Thank you Richard. I was aware of the FT-1000 MP using the same filters.
I happened on to that same site as the link you sent to me.? I may
pursue that avenue a little more again now.? Thanks so much for letting
me know tho.
73, Butch...K3AFR
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Re: COLLINS FILTER YF-115S-02
Thank you Richard. I was aware of the FT-1000 MP using the same filters.
I happened on to that same site as the link you sent to me.? I may
pursue that avenue a little more again now.? Thanks so much for letting
me know tho.
73, Butch...K3AFR
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Re: COLLINS FILTER YF-115S-02
Hi Butch, i'm not sure if you know but the filters in an FT1000MP Mark V are also compatible in the FT847.? This might expand your ability to locate one.? I searched a long time for the 500 Hz CW filter without luck until I learned about the cross-compatibility.? I was searching "FT847 CW filter" (and variations of) and was finding nothing or listings with rediculous greedBay prices.? Skeptical, I did a lot of image searches for the CW filters for both radios and compared them and they looked the same.? So I took a chance and started searching "FT1000MP CW filter" and in short order I was able to find one being parted out by an FT1000MP owner.? I too am looking for the SSB filter.? A couple of times I almost convinced FT1000MP owners to part with their 2.4 kHz SSB filter but failed.? Someday!? :-)
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This was the site where I first discovered the cross compatibility.? Scroll down about half way for the SSB one.
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Hello? 847 owners.
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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),
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I supposed a fault in IC BU4066 SSB/CW/AM/FM switch but, after the replacement of? IC Q1087?the NR fault persist.
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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
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kind of fault.
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Service manual supplied from Yaesu is very poor over this.
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Many thanks for Your support over this topic.
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73 Giuliano IZ3PSL?
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Re: COLLINS FILTER YF-115S-02
Thanks...I'll keep that in mind.
On 9/24/2024 21:48, k9wkj wrote:
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Show quoted text
On Tue, Sep 24, 2024 at 08:38 PM, Butch McCollough wrote:
YF-115S-02
I dont have that but I do have a Inrad 2100hz that needs to be
rehomed
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Re: COLLINS FILTER YF-115S-02
On Tue, Sep 24, 2024 at 08:38 PM, Butch McCollough wrote:
YF-115S-02
I dont have that but I do have a Inrad 2100hz that needs to be rehomed
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COLLINS FILTER YF-115S-02
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.
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73, Butch...K3AFR
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Looks like your PA is self oscillating! Check decoupling caps and earthing
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On 19 Sept 2024, 12:02, at 12:02, Shayne Jones <shayne109@...> wrote: The pa itself seems fine It's pulling around 17amps on 6 but if I look
at the output via an sdr the emission looks like an over horizon radar
on every mode (numerous peaks close spaced and about 300k wide) with or
without modulation and shifted some 500k high of the dial frequency.
Receive is perfect fine and 2/70 performs normally.
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The pa itself seems fine It's pulling around 17amps on 6 but if I look at the output via an sdr the emission looks like an over horizon radar on every mode (numerous peaks close spaced and about 300k wide) with or without modulation and shifted some 500k high of the dial frequency. Receive is perfect fine and 2/70 performs normally.
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Hi Shayne, what current does you 847 take when transmitting, at minimum power out?.
At 5 watts on 6m mine takes just under 10Amps.
I suspect you have a blown HF P/A unit.
Leighton. GW3FSP.
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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?
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Hi Rafael,
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Any luck on finding the fault?
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Greetings from Erik Rothuis (PA2ER), Terborg Netherlands.
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Re: No receive or transmit
Looks like there is no data from the cpu. Check folowing points:
- Check Q2026 for 5 volt on pin 4, on HF on reception,
- Check Q2033 for 5 volt on pin 4, on HF on transmision,
- Check Q2023 for 5 volt on pin 4, on UHF on reception,
- Check Q2024 for 5 volt on pin 4, on UHF on transmision,
- Check Q2032 for 5 volt on pin 4, on VHF on reception,
- Check Q2025 for 5 volt on pin 4, on VHF on transmision,
Check the connection between J2003 PLL board, and J1025 AF-CTRL-UNIT,
Check if ic Q1119 (BU4081BF) is oke
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> Check the "VHF-VCO VCV check" and the "UHF-VCO VCV check". If they check ok, then your REF is ok.
> Otherwise check REF, and check if you have output of both PLL's Q2040 and Q2044 pin9.
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> 108.000 ? ? ? ? .004 vDC
> 134.995 ? ? ? ?.011 ? vDC
> 140.000 ? ? ? ?.011 ? vDC
> 173.995 ? ? ? ?.011 ? vDC
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> I could not locate Q2040 and Q2044 on the PLL board to check them. I located them on the block diagram and schematic. Looking at the block diagram I can only assume they are under one of the four anodized covers on the PLL > > board.?
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> Check the voltages on J2001:
> 1 gnd <Ground is good>
> 2 8V. ?<7.90 v DC>
> 3 5V ? <4.95 v DC>
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> J2002:
> 1 gnd ?<Ground is good>
> 2 HR8 8V on reception HF <0>
> 3 HT8 8V on transmit HF ? <.004 vDC>
> 4 VR8 8V on reception VHF <0>
> 5 VT8 8V on transmit VHF. <.004 vDC>
> 6 UR8 8V on reception UHF <0>
> 7 UT8 8V on transmit UHF. ?<0>
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> I very much appreciate the guidance on this issue and am certainly going further in depth on this radio attempting to solve this issue. It is a great learning experience for me actually troubleshooting a problem of this > > > level. ?I have replaced components on my other radios but usually something straightforward such as a filter on my Kenwood mobile radio. ?
>?
> 73,
>?
> David AL5M
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Greetings from Erik Rothuis (PA2ER), Terborg Netherlands.
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Re: No receive or transmit
I would continue there will only be one fault.
73
Andrew
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On 25 Aug 2024, 04:38, at 04:38, "David A Rutledge via groups.io" <al5m@...> wrote: 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,
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David Rutledge
AL5M
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Re: No receive or transmit
Check the voltages on J2001:
1 gnd
2 8V
3 5V
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J2002:
1 gnd
2 HR8 8V on reception HF
3 HT8 8V on transmit HF
4 VR8 8V on reception VHF
5 VT8 8V on transmit VHF
6 UR8 8V on reception UHF?
7 UT8 8V on transmit UHF
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Greetings from Erik Rothuis (PA2ER), Terborg Netherlands.
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Re: No receive or transmit
Check the "VHF-VCO VCV check" and the "UHF-VCO VCV check". If they check ok, then your REF is ok.
Otherwise check REF, and check if you have output of both PLL's Q2040 and Q2044 pin9.
--
Greetings from Erik Rothuis (PA2ER), Terborg Netherlands.
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gw3fsp
Andy Bosworth
Richard
Andrew Lenton