[1000mp] 1000 DSP

Tue Sep 5 15:37:52 EDT 2006

Nice post Cecil and informative for the newbies. Yes the dsp on the mark V 
is 10 years old and that is the reason it is unproductive. Installing the 
Inrad Crystal Filters does the same job. Also beware of the FT-2000 with the 
wide Roofing Filter. Even at the narrowest roofing filter of 3K it will 
still cause lots of IMD in contest and dx situations. Even with their newly 
defined dsp. What makes matters worse with the 2000 is the lack of slots to 
put in crystal filters at the different IF's. DSP has come a long way but I 
don't think Yaesu has perfected it that much that it doesn't need crystal 
filters. Icom had this approach a few ago with the
Pro III. Look at the receiver specs of the Pro III and that radio is a mess. 
The Icom 746 has way much better specs than the Pro III. The FT-2000 is a 
great looking radio but I hope its not garbage on the inside.

john-n4dsp

----- Original Message ----- 
From: "Cecil Acuff" <chacuff at cableone.net>
To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
Sent: Tuesday, September 05, 2006 1:45 PM
Subject: [1000mp] 1000 DSP

> To speak to the DSP I again only have the MP not the MKV.  I have no 
> knowledge of Kenwoods DSP system but what has been inferred is that the 
> DSP system in the 1000MP is not IF.  Well it appears to be as IF as IF got 
> back during that period of time.  The 4th IF in the MP is running at 10.24 
> Khz which is a pretty common way DSP is implemented in most all of the 
> recent history radio's employing IF DSP. (not discussing the Orion 
> here...it's a different animal) Down convert to a very low frequency and 
> do an A to D conversion, apply the various algorithms then convert back to 
> analog with a D to A conversion and then on to some additional filtering 
> and audio amplification.
>
> In the MP you have a choice via menu control to do standard analog 
> demodulation or allow the DSP to do the demod.  That determines whether 
> audio or the 10.24Khz IF is passed to the DSP system. (speaking of RX only 
> here)  The user has to make that decision and configure the radio as to 
> his wishes.  I have owned the Icom 756 Pro II,  a fully DSP implemented 
> radio system and it worked quite well...not as flexible as I would have 
> liked but a nice radio.  My MP's DSP system, considering it is 10+ years 
> behind the Icom DSP design, works very respectably, reducing random 
> background noise, multiple hets, sharp bandpass filtering as needed 
> etc....
>
> I have owned several outboard Audio DSP filter systems from JPS, MFJ and 
> Timewave.  The Yaesu implementation in my MP works as well as any from 
> those years and better than most. (my 1000D has the 599+ in the speaker 
> cabinet)
>
> The advantage of the Icom ProII system over the Yaesu MP was that you were 
> able to keep the interference you rejected with the DSP out of the AGC 
> loop thus not reducing the sensitivity of the radio in the process. 
> That's a completely different generation of DSP implementation than is 
> used in the FT-1000MP series receivers....
>
> IF DSP...YES.  Done the way things are being done in the latest generation 
> of DSP implementation....NO, it's a 10+ year old design why would anyone 
> expect it to be.  I'll bet the FT-2000 is done that way though....maybe 
> with a few added twists.  Don't know, don't own one and probably won't for 
> a few years if at all.
>
> I still use my FT-1000D the most but am learning to like certain things 
> about the MP.....Sold the Icom and wouldn't trade my Yaesu's for a 
> Kenwood.
>
> Orion is nice but I don't like the central display philosophy.  Just a 
> personal thing!
>
> Cecil....
>
>
> ----- Original Message ----- 
> From: "n4dsp" <n4dsp at triad.rr.com>
> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
> Sent: Tuesday, September 05, 2006 8:03 AM
> Subject: Re: [1000mp] Relay thing..deaf receiver
>
>
>> :))
>> I had a Mark V and it came advertised with IF DSP. If you hadn't noticed 
>> it doesn't work!! What you have in the Mark V is an updated Kenwood TS 
>> 930S and the 930S was a better radio at that! I will continue to pop in 
>> and make comments when I see someone getting attacked or making an 
>> outlandish comment about the glory of the "classic" Mark V. By the way a 
>> friend of mine sent his Mark V to Yaesu from lightning damage. He told 
>> them to just give him an estimate, a diagnostic fee, which was 35 bucks. 
>> They had the radio for two months and repaired it and sent it back to him 
>> and the cost was 800 bucks. So you tell me why someone should have 
>> respect for Yaesu.
>> Looking forward to your next email Cec.
>>
>> john
>>
>> ----- Original Message ----- 
>> From: "Cecil Acuff" <chacuff at cableone.net>
>> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>> Sent: Tuesday, September 05, 2006 8:56 AM
>> Subject: Re: [1000mp] Relay thing..deaf receiver
>>
>>
>>> Real slick John.....You slide in and make your "Orion" comments from 
>>> time to time in the middle of a Yaesu forum and don't expect to get 
>>> nailed.... And then turn around and attack another list member for 
>>> having accurately pointed out your mixed messages in past posts on this 
>>> same subject.  I think you find more sport in stirring up crap on the 
>>> lists than you do using that Orion...if you own one at all?
>>>
>>> Real piece of work John....and no you won't find a picture of me on 
>>> QRZ.com to make unprofessional and demeaning remarks about....I've been 
>>> too busy using my rigs, building antennas and restoring equipment to 
>>> take one! (between hanging sheetrock, insulation, painting and other 
>>> general and continuing Hurricane Katrina repairs)
>>>
>>> What have you done lately to contribute to the hobby.....  (posting to 
>>> the Yaesu list don't count)
>>>
>>> GET A LIFE JOHN!
>>>
>>> Cecil Acuff
>>> WB5VCE
>>> Gulfport MS
>>> ----- Original Message ----- 
>>> From: "n4dsp" <n4dsp at triad.rr.com>
>>> To: <n9aa at arrl.net>; "buddy" <gdadx2 at earthlink.net>; "1000" 
>>> <1000mp at mailman.qth.net>
>>> Sent: Tuesday, September 05, 2006 4:50 AM
>>> Subject: Re: [1000mp] Relay thing..deaf receiver
>>>
>>>
>>>> Why are you such a brown noser with Yaesu? You got your nose stuck so 
>>>> far up Yaesu's Arse you fail to see what is in front of you. Anyone 
>>>> making a negative comment about Yaesu you immediately come running to 
>>>> Yaesu's defense. Persons are entitled to say anything they want to but 
>>>> you want to suppress them with your arrogant remarks and try to 
>>>> embarrass them. Who the heck is N9AA? I have never heard of you till I 
>>>> read those attacking posts. By the way is that you in the picture on 
>>>> QRZ.COM? Nice shorts. Wow look at that HT hanging from your little 
>>>> belt. Funny that you have to pose with Bharathi and Prasad to gain some 
>>>> type of recognition you little piss ant.
>>>>
>>>> john-n4dsp
>>>>
>>>>
>>>> ----- Original Message ----- 
>>>> From: "Scott Manthe" <n9aa at arrl.net>
>>>> To: "All about Yaesu 1000mp" <1000mp at mailman.qth.net>
>>>> Sent: Tuesday, September 05, 2006 12:18 AM
>>>> Subject: Re: [1000mp] Relay thing..deaf receiver
>>>>
>>>>
>>>>> n4dsp wrote:
>>>>>> Garry,
>>>>>>     that is exactly why I purchased the Ten Tec Orion II and not the 
>>>>>> ft-2000d. I will never purchase anything Yaesu again.
>>>>>>
>>>>>> 73
>>>>>> john n4dsp
>>>>>>
>>>>> Have you actually used this Orion II yet or do you just post to the 
>>>>> various Yaesu reflectors about it?
>>>>>
>>>>> By the way, are you sure you about your reason for not buying the 
>>>>> FT-2000, because according to your earlier post, you were just tired 
>>>>> of waiting for Yaesu to tell you when the 200 watt version was coming 
>>>>> out:
>>>>>
>>>>> posted by n4dsp 7-25-2006:
>>>>>> I made a post to the Ft-9000,FT-2000 yahoo group site stating that I 
>>>>>> was annoyed at waiting for the FT-2000 200 watt version and would 
>>>>>> place an order to Ten-Tec tomorrow for the Orion II. I also stated I 
>>>>>> was treated rudely by Yaesu customer service when I inquired when the 
>>>>>> FT-2000 200 watt version was going to be made available, so disturbed 
>>>>>> that I felt my 4000 bucks would be gladly taken by Ten-Tec with their 
>>>>>> excellent customer service. I presently have a Yaesu Mark V but that 
>>>>>> doesn't matter. To get to the point my post never made it but here is 
>>>>>> the email I received from the FT-9000,FT-2000 yahoo group.....
>>>>>
>>>>> You might consider getting your story straight.
>>>>>
>>>>> Scott, N9AA
>>>>>
>>>>>
>>>>>
>>>>> ______________________________________________________________
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>>>>
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>>>
>>>
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>
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