Tap and kw power settings for FCV295 + R599C

[mrfisherman]

A few questions regarding a FCV295 and R599C setup:

1) If I have a R599C, how do I program the unit to properly transmit 3kw on the low band and 2 kw on the (M)edium or (H)igh band?

2) If the answer to #1 the tap which controls the power output, I am confused because why would Furuno's tap setting chart recommend HF TAP B for R599C-LM while it recommends HF TAP C for R599C-LH? For the medium or high frequency band versions of R599C, both are spec'd for 2kw so why wouldn't they be the same TAP? Does this mean that medium band transducer power is running at less than maximum?

3) If it's more than the TAP which controls power, what software setting(s) is it on the unit to give you 3kw output on LF and 2 kw on HF band?

Just want to make sure that I am getting the maximum power out of the R599C as possible.

Thanks.

 

[Snips]

Mrfisherman,
You have sharp eyes.
The reason for the different tap settings is that the impedance of the transducer elements is different between the medium and high frequencies. The FCV-295 also has a menu TX Power and TX Rate setting. Normally these are defaulted to Auto, personally I like to set them at 10 and 20.

Snips

 

[mrfisherman]

Snips,

Thanks for the reply. I don't believe R599 is in the database of transducers so a manual setup is necessary. In this case, how does ff know to use 3kw and 2kw? TX POWER at 10 and TX RATE at 20 are just numbers with no baseline? If, for instance, a 1 kw transducer is connected, TX POWER and 10 and TX RATE at 20 gives you what output?

Hmm...Still confused... I'm hooking the system up tomorrow and hope you can shed some light.

Could it be that the TAP + known impedance of the transducer band = max power output (not necessarily going to be exactly 1,2, or 3 kw) and TX POWER reduces/increases the amount up to max?

Thanks.

 

[Snips]

Mrfisherman,
The tap settings listed are designed to closely match the input power that a transducer can handle. The TX Power setting lets the operator lower the output power in roughly 10% intervals i.e. 10=100%, 9=90% and so on.

Snips

 

[mrfisherman]

Snips,

Much appreciated!