Topband: Diversity-capable transceivers

[Carl Braun]

Barry and fellow Topbanders

I used an Icom 7800 for diversity reception and found it to be a wonderful performer.  I would listen to my vertical array on 80 while monitoring the same signals with my second receiver connected to either a Pixel loop or a rotatable 80 dipole.  

Now I am back to my trusty FT1000D with dual RX but it doesn't compare to the 7800 due to the disadvantaged 2nd RX in the 1000D.  The main RX has all filters (incl roofing) but the 2nd RX can only do so much as it introduces noise into the mix degrading any weak signals combined from the main RX.

I hear a lot of DXers speaking highly of the Yaesu FTDX5000 series of radios.  The Sherwood reports seem to think they are among the best "knobbed" XCVRs out there if you look past the Flex and K3 rig specs.  The 5000 , the Icom 78XX series and the 990 all seem to be great for dual diversity however there are some real price differentials in the pack.

Carl


-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Chortek, Robert L
Sent: Monday, November 30, 2015 5:36 AM
To: Barry N1EU
Cc: topBand List
Subject: Re: Topband: Diversity-capable transceivers

Hello Barry,

I have been using the 990 for over a year and use it daily on the Low Bands.  I find it an exceptional performer. The ergonomics are not quite as good as the ICOM 7800, but the receiver performance is much better. The capability of the radio is at its best on the low bands, if you look at the ARRL and Sherwood engineering receiver performance figures.

You can set both receivers to track one another, but the second receiver in the 990 is from the Kenwood 590, and is a slightly lower performer, but still very good. I do not use it on diversity. 

I have absolutely no regrets.

73,Bob AA6VB

Sent from my iPhone

> On Nov 30, 2015, at 5:24 AM, Barry N1EU <barry.n1eu at gmail.com> wrote:
> 
> A little research reveals that the TS-990S uses a down-converting 
> subreceiver on the low bands.  Can anybody comment on the stereo 
> diversity capability and performance of the TS-990S and generally how 
> it performs on low-band cw?
> 
> Thanks & 73,
> Barry N1EU
> 
>> On Mon, Nov 30, 2015 at 6:05 AM, Barry N1EU <barry.n1eu at gmail.com> wrote:
>> 
>> I'm not familiar with the Yaesu/Icom/Kenwood offerings.  Other than 
>> the K3/K3S and Orion/RX366, do any of the other knobbed (non-SDR) hf 
>> transceivers offer a down-converting second receiver that can be used 
>> in stereo diversity mode?
>> 
>> Thanks & 73,
>> Barry N1EU
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