K3 and Yaesu FL7000 amp

[Cloud Runner-3]

It appears to me (but I don't know for certain) that ACC Band0-3 can be mapped directly to Band Data A-D on the yaesu amp.  I can see current limiting resistors in the amp, and the binary code is the same under CONFIG KIO NOR

But, I have my wonders about the TX INH of the K3 and that of the FL7000.

According to a letter I have from Yaesu, the FL7000 grounds its TX INH line when it is ready for the exciter to transmit.  From what I am reading in the K3 manual, the ACC pin 7 TX INH appears to NOT transmit when it is grounded.  

They are opposites???

72,

Fred - kt5x

K2 # 0700
K3 # 0144
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[GW0ETF]

cloud runner wrote

.........................

But, I have my wonders about the TX INH of the K3 and that of the FL7000.

According to a letter I have from Yaesu, the FL7000 grounds its TX INH line when it is ready for the exciter to transmit.  From what I am reading in the K3 manual, the ACC pin 7 TX INH appears to NOT transmit when it is grounded.  

They are opposites???

72,

Fred - kt5x

K2 # 0700
K3 # 0144
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Fred,

The 'opposite' TX INH topic has been discussed before (and confirmed..?) and this was relevant to me as a Yaesu FT990 user. However earlier posts from Eric claimed an amp keying loop is unnecessary with the K3/K2 and a modern amp.

Yesterday I put K3 0145(!) on air with my Acom 1000 amp and can confirm (and concur with Brendan Minish EI6IZ) that the K3 keys this modern amp perfectly in full qsk with just the straight key out connection. Note also that the TX INH feature is described under Transverter Control in the manual, not under amp keying.

The K3 is a great radio; the problem for me now is my 30A power supply sounds like a worn out vacuum cleaner when it kicks in - any suggestions for a nice quiet p/s available in the UK...?

Also is there no easy way to reference earlier posts in the archives here? Yahoo groups number their posts which makes cross referencing quick and easy and something like that would be handy here (as above.....)

73,

Stewart Rolfe, GW0ETF
K3 - 0145

[Simon (HB9DRV)]

FWIW I am using a Diamond GSV3000 - you could buy this from Martin Lynch &
Sons. The fan only kicks in when it gets very warm - as it's only 15C in the
office and the radio is always on receive this isn't going to happen. Also I
can adjust the voltage to 12v

Or Call Chris Taylor at ML&S and just ask for a suggestion, they have quite
some second-hand stuff which passes through their emporia.

Now back to writing SSTV code for Windows...

Simon Brown, HB9DRV

----- Original Message -----
From: "GW0ETF" <[hidden email]>
>
> The K3 is a great radio; the problem for me now is my 30A power supply
> sounds like a worn out vacuum cleaner when it kicks in - any suggestions
> for
> a nice quiet p/s available in the UK...?
>

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