DFF1-UHD Frequency Modes

[Quitsa]

Can the DFF1-UHD be set to operate at customized fixed frequencies? Some of the other CHIRP sounders allow this function so you can either operate in CHIRP across a band or pick a specific frequency within the band, e.g. in low you can operate at a fixed 38Hz or a fixed 65Hz or anywhere in between. I know from using the DFF3 that it is possible to select a custom frequency with that unit if the transducer is a "broadband" that supports it.

 

[Snips]

Quitsa,
The Chirp range on the DFF1-UHD is fixed. The concept of a variable Chirp has been in our minds for a long time. The ability to slew the sounders "Chirp" range to better match the transducer is being tested along with a variable bandwidth control to improve interference rejection. The biggest part to this is trying to create a variable algorithm for all the different output power/frequency/beam width combinations for the ACCU-FISH and Bottom Discrimination modes.

Snips

 

[Jsubzero]

so are we going to be able to select our own frequencies in the future with our chirp??

Also will it be a software update ? Im sure many of us are waiting.

 

[Snips]

Jsubzero,
At this point the DFF1-UHD internal diplexer is centered on two frequencies 50 (30-70Khz) and 200 (175-225Khz). Besides changing the software the internal components would need to be changed depending on the frequencies What frequencies are you trying to use?

Snips

 

[Jsubzero]

it would have been nice to choose the sweet spot frequency like other units.