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#11
January 25th 06, 05:51 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
The 'B' model has better SSB performance along with some other
improvements. Where did you get the DX-394? Lisa Simpson wrote: nope, it's just a plain old 394 . . . "HFguy" wrote in message news:BZEBf.5199$Jn1.518@trndny01... Lisa, Does your DX-394 have the letter 'B' sticker on the back like the following picture? It's the better version of the 394. http://home.comcast.net/~jjfulford/ebay/dx394-004.jpg |
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#12
January 25th 06, 06:05 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
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#13
January 25th 06, 09:12 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
I got it off ebay;
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5855157653 "HFguy" wrote in message news:nUOBf.2088$0n4.625@trndny05... The 'B' model has better SSB performance along with some other improvements. Where did you get the DX-394? Lisa Simpson wrote: nope, it's just a plain old 394 . . . "HFguy" wrote in message news:BZEBf.5199$Jn1.518@trndny01... Lisa, Does your DX-394 have the letter 'B' sticker on the back like the following picture? It's the better version of the 394. http://home.comcast.net/~jjfulford/ebay/dx394-004.jpg |
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#14
January 25th 06, 09:13 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
Thanx for the pointer!
wrote in message ... Here is Rob Morton's excellent radio website. www.robmorton.20m.com/radio/index.htm cuhulin |
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#15
January 26th 06, 04:20 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
Lisa Simpson wrote:
I got it off ebay; http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5855157653 "HFguy" wrote in message news:nUOBf.2088$0n4.625@trndny05... The 'B' model has better SSB performance along with some other improvements. Where did you get the DX-394? Lisa Simpson wrote: nope, it's just a plain old 394 . . . "HFguy" wrote in message news:BZEBf.5199$Jn1.518@trndny01... Lisa, Does your DX-394 have the letter 'B' sticker on the back like the following picture? It's the better version of the 394. http://home.comcast.net/~jjfulford/ebay/dx394-004.jpg I'm surprised the previous owner took the time to install the shielding. I don't recall that being a recommended mod' for the DX-394. Does it still have the original label on the rear which gives the model and serial number? The ferrite rod antenna is mounted on the top circuit board inside the case. This is for MW (AM) reception. The shielding must have reduced or even eliminated the effectiveness of this antenna. How is reception on the AM band (525-1615)? |
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#16
January 27th 06, 04:08 AM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
"HFguy" wrote in message news:eF6Cf.22997$nQ3.1107@trndny03... Lisa Simpson wrote: I got it off ebay; http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5855157653 I'm surprised the previous owner took the time to install the shielding. I don't recall that being a recommended mod' for the DX-394. Does it still have the original label on the rear which gives the model and serial number? The ferrite rod antenna is mounted on the top circuit board inside the case. This is for MW (AM) reception. The shielding must have reduced or even eliminated the effectiveness of this antenna. How is reception on the AM band (525-1615)? Shielding is a recommended mod to reduce interference from VDT's and other nearby equipment. The LW/MW ferrite rod is sensitive mainly to the magnetic field so shielding that is effective on the electric field and is not ferro-magnetic has little effect on the LW/MW sensitivity but is effective at SW. If you want the best results on LW/MW, it is advisable to replace the ferrite rod antenna with shielded or toroidal transformers, shield the receiver for both electric and magnetic fields, and use a directional outdoor antenna with shielded transmission line. Leaving the internal antenna in place degrades the directivity of the outside antenna and picks up more local interference. This would be true for any radio with a built-in antenna, not just the DX-394. Tom |
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#17
January 27th 06, 02:53 PM
posted to rec.radio.shortwave
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Opinions/experience Radio Shack DX-394?
The shielding has eliminated the possibility of connecting the top-mounted,
screw-in type antenna, so I have to wire up an external antenna; I have a wiring company coming in to do so in a couple weeks. Don't know how it performs yet due to no antenna, but at least it powers up! "HFguy" wrote in message news:eF6Cf.22997$nQ3.1107@trndny03... Lisa Simpson wrote: I got it off ebay; http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5855157653 "HFguy" wrote in message news:nUOBf.2088$0n4.625@trndny05... The 'B' model has better SSB performance along with some other improvements. Where did you get the DX-394? Lisa Simpson wrote: nope, it's just a plain old 394 . . . "HFguy" wrote in message news:BZEBf.5199$Jn1.518@trndny01... Lisa, Does your DX-394 have the letter 'B' sticker on the back like the following picture? It's the better version of the 394. http://home.comcast.net/~jjfulford/ebay/dx394-004.jpg I'm surprised the previous owner took the time to install the shielding. I don't recall that being a recommended mod' for the DX-394. Does it still have the original label on the rear which gives the model and serial number? The ferrite rod antenna is mounted on the top circuit board inside the case. This is for MW (AM) reception. The shielding must have reduced or even eliminated the effectiveness of this antenna. How is reception on the AM band (525-1615)? |
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