[Elecraft] Re: OT: QST's review of the Yaesu FTDX5000MP

Johnny Siu vr2xmc at yahoo.com.hk
Tue Nov 16 10:21:59 EST 2010


Hello Joe,

Dual watch is not equal to dual receivers for sure.  Therefore, I did not add in 
KRX3 in cost comparison.  I am afraid that adding the cost of KRX3 is not a like 
with like comparison.

My cost comparison is K3 single receiver Vs  IC7600 single receiver.  To this 
end, dual watch in IC7600 is simply an additional feature to my convenience.

I once used XV144 with IC7600.  The band spectrum of IC7600 under 'dual watch' 
can read both the uplink and downlink of a 2m repeater i.e. I read both 
145.650Mhz and 145.050 Mhz in the band spectrum.  This is a very convenient 
feature.
 cheers, 


Johnny VR2XMC 



----- 郵件原件 ----
寄件人﹕ "Joe Subich, W4TV" <lists at subich.com>
收件人﹕ elecraft at mailman.qth.net
傳送日期﹕ 2010/11/16 (二) 11:07:42 PM
主題: Re: [Elecraft] OT: QST's review of the Yaesu FTDX5000MP


>> 2. When we calculate the cost for comparison, we have to add P3 to K3 to 
bring
>> it in line.  Bearing in mind, IC7600 only costs US$3,250 in Hong Kong

And you need to include a second Icom receiver (R?) to bring the
receive capability up to that of the K3 with KRX3.  Icom's "dual watch"
is a poorly performing joke compared to even the second complete 
receiver in the FT-2000


73,

    ... Joe, W4TV

On 11/16/2010 8:59 AM, Johnny Siu wrote:
> Hello Nate,
>
> In relation to your comments about IC7600, I would add the following:
>
> 1.  There is 'manual notch within AGC loop' in IC7600.  This function is very
> useful when I use it to notch out a strong offending carrier right adjoining 
to
> my wanted desired weak signal.  Since the notch is within AGC loop, the wanted
> weak DX signal will pop out right from the noise ground after the
> carrier is notched.  The desense of AGC by the strong carrier disappears at 
the
> same time.
>
> I did an A/B comparison of the above during the recent CQ WW SSB contest.
>
> 2. When we calculate the cost for comparison, we have to add P3 to K3 to bring
> it in line.  Bearing in mind, IC7600 only costs US$3,250 in Hong Kong
>
> I am still running my K3 but just plainly spell out the fact as above.
>  cheers,
>
>
> Johnny VR2XMC
> www.qrz.com/callsign/vr2xmc



      


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