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| Reviews Summary for Philips M.E.L. - PRC-2000 |
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Reviews: 2
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Average rating: 5.0/5
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MSRP: $Unknown
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Description: Military, compact man-pack radio HF SSB
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More info: http://
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You can
write your own review of the Philips M.E.L. - PRC-2000.
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AC5XP
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Rating: 5/5
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Nov 6, 2007 18:33
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Still love it
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Time owned: more than 12 months
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Still own it; still love it.
But one interesting fact I felt is worth mentioning: In my review below (from 5 years ago) I wrote: "One wonders why such an I-Q direct-conversion concept is not used in today's DSP based radios"
Well, FlexRadio must have been listening. Their SDR-1000 and successive newer models ARE based on the same principle using a direct-conversion quadrature mixer concept, the same as what the PRC-2000 uses. Only difference is of course that FlexRadio is using a DSP for the baseband filtering (actually through your PC sound card); the PRC-2000 uses analog electronics there.
I was actually wrong about one point: It IS possible to do AM and FM in such a concept (as FlexRadio proves), AM is actually pretty straightforward, FM is a bit more complicated. But the latter is done by creating a very low subcarrier in the base-band (let's say 10 kHz) which is then frequency modulated and I-Q mixed to (from) the operating frequency. The main oscillator then compensates for the 10 kHz offset in the FM mode so it is "transparent" to the user.
It is the ultimate HF radio concept. Believe me, 10 years from now most all HF radios will be based on this method. And the PRC-2000 might have been the first one!
Loek d'Hont AC5XP
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KA4KOE
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Rating: 5/5
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Mar 6, 2005 20:22
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A good one
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Time owned: 0 to 3 months
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Bought my PRC2000 from a US Ham. These rigs are occasionally available from Combat Radio in the UK, for about 2000 US.
Set up in the back yard and worked Belgium right away on 17m.
Its a bit on the heavy side, but all in all, a great radio.
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