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question about converting Ensemble RX II from HF to LF

 

Since I have the extra HF, I am considering changing out components to get LF.? I am looking at his page:




Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"?? I don't believe any of the component changes here are surface mount, correct?? What type of capacitors are those?

Thank you,

Jon
 


Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"?? I don't believe any of the component changes here are surface mount, correct?? What type of capacitors are those?
Jon,

Add the extra IC and link.
The capacitors are ceramic as illustrated on Robby's page.

(Personally I find it easier to replace SM capacitors but none of those are.)

73 Alan G4ZFQ
 

Hi Alan,

I can't find anything regarding the extra IC and link.? Could you please share a link for this?

Sorry for my ignorance.? These were Tony builds, so I never did any of this myself.? I figured I could probably handle the mods if not too complex without shelling out for a separate unit just for LF.

By the way, should anyone here want to trade, I'd be willing to do that also and would save me some work (and you get a basically unused HF unit in return).? Trade my spare HF Ensemble RX II for your LF one.

Thanks,

Jon

On 6/5/21 3:02 AM, Alan G4ZFQ wrote:


Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"?? I don't believe any of the component changes here are surface mount, correct?? What type of capacitors are those?
Jon,

Add the extra IC and link.
The capacitors are ceramic as illustrated on Robby's page.

(Personally I find it easier to replace SM capacitors but none of those are.)

73 Alan G4ZFQ
 

I can't find anything regarding the extra IC and link.? Could you please share a link for this?
Jon,

The details are in the link you sent. I see it on the schematic. U12 is required, the wire link not.

73 Alan G4ZFQ

On 6/5/21 3:02 AM, Alan G4ZFQ wrote:


Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"?? I don't believe any of the component changes here are surface mount, correct?? What type of capacitors are those?
 

Shucks, as that looks like a surface mount device (U12), I won't be doing the conversion after all.? Thanks for the info though.

Jon

On 6/5/21 9:29 AM, Alan G4ZFQ wrote:
I can't find anything regarding the extra IC and link.? Could you please share a link for this?
Jon,

The details are in the link you sent. I see it on the schematic. U12 is required, the wire link not.

73 Alan G4ZFQ


On 6/5/21 3:02 AM, Alan G4ZFQ wrote:


Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"?? I don't believe any of the component changes here are surface mount, correct?? What type of capacitors are those?
 

as that looks like a surface mount device (U12), I won't be doing the conversion after all.
Jon,

You will not believe me but it is really easy. Solder with any iron, use solder wick if you make bridges. I've never damaged a component by clumsy soldering.

73 Alan G4ZFQ
 

Hi Jon,

I continue to build LF RX II receiver boards and would be happy to convert one of your HF RX II receiver boards to a LF receiver for a small charge.

If interested send me an email to kb9yig@....

Regards,
Tony, kb9yig

On Jun 5, 2021, at 4:05 PM, JonI via groups.io <ji425bt@...> wrote:

Shucks, as that looks like a surface mount device (U12), I won't be doing the conversion after all. Thanks for the info though.

Jon


On 6/5/21 9:29 AM, Alan G4ZFQ wrote:
I can't find anything regarding the extra IC and link. Could you please share a link for this?
Jon,

The details are in the link you sent. I see it on the schematic. U12 is required, the wire link not.

73 Alan G4ZFQ


On 6/5/21 3:02 AM, Alan G4ZFQ wrote:


Is all that would be required under the "180 Khz through 3000 Khz LF BPF set"? I don't believe any of the component changes here are surface mount, correct? What type of capacitors are those?

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