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#1
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FT 817 as SW radio
I had a play with the FT 817 radio the other day. I was quite impressed by
its reception.I wonder if anyobdy else has played with it, or compared it to other receivers, such as a Sony 7600G Richard |
#2
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Richard schrieb:
I had a play with the FT 817 radio the other day. I was quite impressed by its reception.I wonder if anyobdy else has played with it, or compared it to other receivers, such as a Sony 7600G That wouldn't be a fair comparison. The Yaesu would undoubtably be far superior to the poor Sony, particularly with regard to SSB performance and strong signal handling. A portable might be more sensitive off the whip, but the Yaesu was built with "real antennas" and 50 ohm feed in mind, and of course with a much bigger power budget (which allows mixers with better strong signal handling, but also higher power consumption to be used). Stephan -- Meine Andere Seite: http://stephan.win31.de/ PC#6: i440BX, 1xP3-500E, 512 MiB, 18+80 GB, R9k AGP 64 MiB, 110W This is a SCSI-inside, Legacy-plus, TCPA-free computer |
#3
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From Arnie Coro
CO2KK Host of Dxers Unlimited radio hobby program Radio Havana Cuba My opinion about the FT 817 as a short wave receiver is that in order for it to work properly, one must change the factory installed IF ceramic filter !!! A narrower bandwidth mechanical filter is a much better option ! Also, I have noticed that the FT 817 has very poor sensitivity on the AM broadcast band , even when used with an external long wire antenna !!! My own 817 has a very narrow IF filter for working CW. There is a modification that will allow using two filters, but unfortunately I have never been able to get a hold of it, or of the phone bandwidth IF filter ... Arnie Stephan Grossklass wrote in message ... Richard schrieb: I had a play with the FT 817 radio the other day. I was quite impressed by its reception.I wonder if anyobdy else has played with it, or compared it to other receivers, such as a Sony 7600G That wouldn't be a fair comparison. The Yaesu would undoubtably be far superior to the poor Sony, particularly with regard to SSB performance and strong signal handling. A portable might be more sensitive off the whip, but the Yaesu was built with "real antennas" and 50 ohm feed in mind, and of course with a much bigger power budget (which allows mixers with better strong signal handling, but also higher power consumption to be used). Stephan |
#5
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In article ,
says... My opinion about the FT 817 as a short wave receiver is that in order for it to work properly, one must change the factory installed IF ceramic filter !!! A narrower bandwidth mechanical filter is a much better option ! Also, I have noticed that the FT 817 has very poor sensitivity on the AM broadcast band , even when used with an external long wire antenna !!! My own 817 has a very narrow IF filter for working CW. There is a modification that will allow using two filters, but unfortunately I have never been able to get a hold of it, or of the phone bandwidth IF filter ... I've heard of that mod to put in both the SSB and CW filters, but I've never tried it. As for the need for a filter for shortwave listening, so far I've never needed it. The 817 is a solid rig and does well for both amateur and SWL uses for me. Good to hear from you, Arnie! Hope you've weathered the recent rash of hurricanes well and are still safe and sound. -- -- //Steve// Steve Silverwood, KB6OJS Fountain Valley, CA Email: |
#6
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I am surprised at your comment that the 817 has poor sensitivity in the AM
broadcast band. I have found the opposite. What is lacking is selectivity. The receiver can be easily overloaded on a longwire or SWL antenna. I found the best antenna for me is just to plug it into my VHF yagi. At that frequency the yagi is nothing more than just a 38" piece of wire. Just a short antenna away from sources of interference in the house works very well. I have not tried a tuned loop for the broadcast band but I suspect that would work very well with the added selectivity. "Steve Silverwood" wrote in message ... In article , says... My opinion about the FT 817 as a short wave receiver is that in order for it to work properly, one must change the factory installed IF ceramic filter !!! A narrower bandwidth mechanical filter is a much better option ! Also, I have noticed that the FT 817 has very poor sensitivity on the AM broadcast band , even when used with an external long wire antenna !!! My own 817 has a very narrow IF filter for working CW. There is a modification that will allow using two filters, but unfortunately I have never been able to get a hold of it, or of the phone bandwidth IF filter ... I've heard of that mod to put in both the SSB and CW filters, but I've never tried it. As for the need for a filter for shortwave listening, so far I've never needed it. The 817 is a solid rig and does well for both amateur and SWL uses for me. Good to hear from you, Arnie! Hope you've weathered the recent rash of hurricanes well and are still safe and sound. -- -- //Steve// Steve Silverwood, KB6OJS Fountain Valley, CA Email: |
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