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#1
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Anyone interested in having a look at a side by side comparison between the
venerable Drake R8B and Icom's latest digital transceiver offering the 756 PRO III can do so at http://www.dxing.info/equipment/icom_ic756_plimmer.dx The Icom has some impressive features for a SW DXer with performance to match -- John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s Icom IC-756 PRO III with MW mods RX Drake R8B, SW8 & ERGO software Sony 7600D GE SRIII BW XCR 30, Braun T1000, Sangean 818 & 803A. Hallicrafters SX-100, Eddystone 940 GE circa 50's radiogram Antenna's RF Systems DX 1 Pro, Datong AD-270 Kiwa MW Loop |
#2
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![]() "John Plimmer" wrote in message ... Anyone interested in having a look at a side by side comparison between the venerable Drake R8B and Icom's latest digital transceiver offering the 756 PRO III can do so at http://www.dxing.info/equipment/icom_ic756_plimmer.dx The Icom has some impressive features for a SW DXer with performance to match Nice job John- and very much appreciated. I am using the original 756PRO and find it to be an exceptional LF--HF RX. For the LF experimental band, the ability to precisely set the BFO offset makes it possible to run ARGO in the narrowest of BW and be certain the signal will fall right where it should. I too would like sync detection, but find that tuning in the 1Hz step mode allows fantastic Exhaulted carrier detection. The scope is a real plus, and would be very much missed on any other rig. I run line audio out to a HiFi amp and find the audio superb, but lacking ( as you mentioned) if I just use another speaker on the 8 Ohm output of the Icom. 73, Dale W4OP for PAR Electronics, Inc. |
#3
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![]() "Dale Parfitt" wrote in message news:SH3Cd.15352$Y57.9979@trnddc08... "John Plimmer" wrote in message ... Anyone interested in having a look at a side by side comparison between the venerable Drake R8B and Icom's latest digital transceiver offering the 756 PRO III can do so at http://www.dxing.info/equipment/icom_ic756_plimmer.dx The Icom has some impressive features for a SW DXer with performance to match Nice job John- and very much appreciated. I am using the original 756PRO and find it to be an exceptional LF--HF RX. For the LF experimental band, the ability to precisely set the BFO offset makes it possible to run ARGO in the narrowest of BW and be certain the signal will fall right where it should. I too would like sync detection, but find that tuning in the 1Hz step mode allows fantastic Exhaulted carrier detection. The scope is a real plus, and would be very much missed on any other rig. I run line audio out to a HiFi amp and find the audio superb, but lacking ( as you mentioned) if I just use another speaker on the 8 Ohm output of the Icom. 73, Dale W4OP for PAR Electronics, Inc. I have a R75 and other radios but my question applies is basic. Exactly how is the 1 Hz steps best used in ECSS? I read that in AM one should tune in up or down 2.5Kz one half an AM bandwidth to get best results? Is this right?? What is it for SSB?? Thanks Lucky |
#4
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Thanks for the review. It's very interesting.
I wonder: Why doesn't the Icom 756 Pro III have sync detection? Does any one know? There has to be some interesting explanation of this, given that we're talking about a $2000 unit. |
#6
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#7
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Volker Tonn wrote:
I have a Sony 2001D/ 2010 and a NRD-525. The NRD has no sync detection and it runs circles around the Sony in *every* aspect. It should! I just switch to SSB-mode selecting the sideband and the bandwidth wich is working best. I'm rarely listenig in AM-mode. If you had a good sync detector, you might listen more in AM mode. A good sync detector basically provides auto-ECSS. -- Brian Denley http://home.comcast.net/~b.denley/index.html |
#8
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![]() John Plimmer wrote: Anyone interested in having a look at a side by side comparison between the venerable Drake R8B and Icom's latest digital transceiver offering the 756 PRO III can do so at http://www.dxing.info/equipment/icom_ic756_plimmer.dx The Icom has some impressive features for a SW DXer with performance to match Pricewise... after reading the review, I'd have to say that the R8B still wins, hands down, no question. dxAce Michigan USA -- John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s Icom IC-756 PRO III with MW mods RX Drake R8B, SW8 & ERGO software Sony 7600D GE SRIII BW XCR 30, Braun T1000, Sangean 818 & 803A. Hallicrafters SX-100, Eddystone 940 GE circa 50's radiogram Antenna's RF Systems DX 1 Pro, Datong AD-270 Kiwa MW Loop |
#9
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There are many similarities in the 756Pro series. The ProII and ProIII were
"evolutionary" improvements, not major changes in performance compared to the original 756Pro (which I own, and use for tropical bands and TP MW DXing). It becomes a much more interesting value comparion when it's between the R8B and a used 756Pro (~$1400-1500 on Ebay), a used 756ProII (~$1600) or even a new 756ProII (currently around $2100 from ham outlets). I agree with all of John's comments in his review of the 757ProIII as applying to the 756Pro. John and I had a lot of email exchanges before he found his excellent deal on a new ProIII, and the only area we disagree on is the usefulness and ease of adjustment for the manual notch. I find it's 70 db depth to be phenomenal and simple to operate. I prefer it over the auto notch, which works well. BTW, the IC-746Pro's AM detector is a synchronous type, and a fine one according to Dallas Lankford. Too bad that ICOM makes no mention of it, but an ICOM tech confirmed to Dallas about the synch detector. There are MANY circuit similarities between the 746Pro and the 756Pro, and perhaps the 756ProII/III also has the same detector? Dallas says in his 756Pro review & modifications article at www.kongsfjord.no : "Here are some things that put the 746P at the top of the heap. The AM detector is an AM synchronous detector. Why ICOM doesn't advertise this feature of the 746P is a mystery to me. I discovered it merely by noticing that it sounded like an AM synchronous detector and asking ICOM Technical Support if it was. They confirmed what my ears had already told me. And it is not just any old AM synchronous detector. It is an outstanding AM synchronous detector. It doesn't lose lock (no growling on extremely weak signals fading in and out of the ambient noise floor) and you can tune the signal with the AM carrier anywhere you please in the passband, and even out of the passband, and still no growling. In other words, the 746P AMSD is completely transparent to the user. You never know it is there except that the quality of AM reception is better than with an ordinary AM detector for some weak signals at the ambient noise floor and for some strongly fading signals, and better than ECSS." --------------------------------------- For my money, a mint-cond., late serial number 756Pro was an excellent value. I've had a Ten-Tec RX340 in the shack for a month, and it performed significantly worse on tough DX than my modded R-75 and the RA6790GM I used to have. Guy Atkins Puyallup, WA USA "dxAce" wrote in message ... Pricewise... after reading the review, I'd have to say that the R8B still wins, hands down, no question. dxAce Michigan USA |
#10
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Guy Atkins wrote:
I've had a Ten-Tec RX340 in the shack for a month, and it performed significantly worse on tough DX than my modded R-75 and the RA6790GM I used to have. Guy Atkins Puyallup, WA USA Any RX-340 that gets outperformed by a R75 needs to be taken to the shop. -- Brian Denley http://home.comcast.net/~b.denley/index.html |
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