On 12/24/2017 5:32 PM, Don Wilhelm wrote:
> The real shocker is the BDR: only 119 to 122 dB. That’s 30 dB weaker
> than the K3S and only 1 dB better than the IC-7300.
My guess is that the "Front end selectivity" is not an "A tracking
preselector" but rather a "B Band Pass" and that the bandpass is
wider that that of the 7300 in order to support the "dual RX"
capability of the 7610. It's either that or the design/hardware
has some significant bugs.
The other explanation would be simply that direct sampling SDR has a
far wider measurement variability than traditional receiver topology.
Note the 12 dB difference in IMDDR3 between Flex 6700 on 9/29/14 and
the Flex 6700 measured on 3/17/17.
73,
... Joe, W4TV
On 12/24/2017 5:32 PM, Don Wilhelm wrote:
Rob’s IC-7610 RX performance measurements are now posted, at
sherweng.com. The ‘7610 came in twelfth on his list.
The real shocker is the BDR: only 119 to 122 dB. That’s 30 dB weaker
than the K3S and only 1 dB better than the IC-7300. I guess no one is
using these rigs in high-signal conditions.
Bragging rights for the K3, KX3 and K3S owners.
73,
Don W3FPR
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