Hi, to add a little to this wonderful description of the capabilities of
the 590 using split, you also use this capability to enter the 100Khz
split used on 10 meter FM repeaters, and then enter them into memories
for easy recall.
Each frequency can have both a PL for transmitting and CTCSS for
receiving.
	

-- 
Curtis Delzer <[log in to unmask]>

On Fri, 28 Nov 2014 13:24:49 -0600
"Dr. Ronald E. Milliman]\\\\`" <[log in to unmask]> wrote:

> Richard your 590 has two  vf o's , one is designated V F O A and the other V
> F O B. When you press the V F O a/b button you are switching between these
> two V F O's. If you are on a frequency, for instance, 7.225 with V F O A and
> V F O B is on, for example, 14.313, by pressing the V F O A/B button you
> will be switching between these two frequencies, back and forth. However, if
> you are on V F O A and you press and hold the V F O A/B button it will put V
> F O B on the same frequency as V F O A. In the example I just gave, if you
> are listening to V F O A on 7.225 and you press and hold the V F O A/B
> button, you will hear a short tone, indicating that you have put V F O B
> also on 7.225, and the two VFO's will be on the same band and frequency.
> Now, if you are still on V F O A, you can tune around the band and you will
> be changing only your V F O A, or in like manner, if you press the A/B
> button and switch to V F O B, you can tune around the band and you will be
> only changing your V F O B, and the other V F O will stay on the frequency
> you left it on until you switch to it and change its frequency. 
> 
> Split operation is useful especially of you work DX and the DX station is
> transmitting on one frequency but listening on another frequency. For
> instance, just this morning I worked CT9/DL8JJ on Madeira Islands; he was
> transmitting on 28.047 MHz and listening up around 28.048 MHz So, I placed
> my V F O A on 28.047, pressed and held my A/B button to put the V F O B on
> the same frequency, and then I pressed the V F O " SPLIT " button, the first
> button on the second row of buttons to the right of the large tuning knob,
> which put me in split mode; when you do this, your 590's speech will say: "V
> F O A S, which tells you that you are in split mode. Now, I pressed the
> button immediately to the right of this first button, called the TF-SET
> button, and held it while I tuned up in frequency to 28.047 or actually
> until I heard the big pile-up, and then, I tuned around that frequency a
> little while still pressing the same TF-SET button, to find a good spot to
> set my V F O B on to call CT9/DL8JJ. Now, I was listening to CT9/DL8JJ on
> his transmitting frequency of 28.047, but when I transmitted to call him, I
> was transmitting on 28.048 or close to it. Thus, I was operating split
> frequency mode. There is another way of doing this, but that is how I do it,
> and it works great for me. 
> 
> If this is not clear, and you need a better explanation or a clarification,
> let me know. I fully understand how challenging this stuff can be. First, I
> remember when I was first getting into ham radio and I didn't even know what
> coax cable was! Furthermore, I have read and studied the 590 manual and
> still don't understand a lot of what the 590 can do, and only thanks to the
> many wonderful ham buddies here on our Blind Hams list who have helped
> several times, have I understood some of the things that were just not at
> all clear in the manual.
> 
> Ron, K8HSY
> 
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Colin McDonald
> Sent: Friday, November 28, 2014 11:02 AM
> To: [log in to unmask]
> Subject: Re: Please Help Me Better Understand "VFO A/B" vs. "Main/Sub
> Receiver" Capabilities on the Kenwood TS-2000
> 
> you've already got it figured out.
> The main receiver on the ts2000 has two independant VFO's.
> These can be used at the same time, one for receive, one for transmit...or
> they can just be two separate VFO's...for instance, if you want to work
> split, you set VFO a to your rx frequency, and VFO B to your tx frequency. 
> Or, you can simply have one VFO say on 14.285, and the other on 7.158 so you
> can toggle between two frequencies quickly.
> The sub receiver doesn't have two VFO's really, but does allow you to use
> split operation or repeater offset they call it.
> Based on your comments, I think you have it figured out anyway.  It's not as
> complex as you may think.
> 
> 73
> Colin, V A6BKX
> 
> -----Original Message-----
> From: Richard B McDonald
> Sent: Friday, November 28, 2014 9:45 AM
> To: [log in to unmask]
> Subject: Please Help Me Better Understand "VFO A/B" vs. "Main/Sub Receiver" 
> Capabilities on the Kenwood TS-2000
> 
> Hi!
> 
> 
> 
> I need a bit of help to better understand these two capabilities.  Yes, I
> have read the manual and I will read it again several times; but this is not
> getting me to a proper understanding.  So, can you please help me grasp the
> following:
> 
> 
> 
> 1.  VFO A/B operation is not the same as operating on the Main/Sub receiver
> simultaneously, right?  That is, you are not transmitting on one receiver
> (Main/Sub) and receiving on the other.
> 
> 
> 
> 2.  VFO A/B operation happens on the same, single receiver, right?  That is,
> it can happen on the Main receiver, but VFO A/B operation cannot be done on
> the Sub receiver, or can it?  When they speak of VFO A/B operation "A" and
> "B" are *not* referring to the Main and Sub receivers, right?
> 
> 
> 
> 3. I *think* VFO A/B operations refer to utilizing "split operation"; which
> has something to do with transmitting/receiving on different frequencies but
> all on the same, one receiver (i.e., either the Main or the Sub).
> Conceptually, it is sort of like the notion of offsets when, for example,
> using 2M repeaters - or so I presently understand it.  Is this fundamentally
> right?
> 
> 
> 
> I appreciate your helping me get my head around these concepts and
> capabilities.
> 
> 
> 
> 73,
> 
> Richard KK6MRH