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SDR's for sale. RSP2 Pro and CCW Sentinel 4

Tony Stattersfield
 

Hi all,

I have two new and unused SDR’s.

CCW Sentinel 4

SDR Play RSP2 Pro.

Is anyone on here interested before I go to Ebay?

I have not used either one.

Can post from North Norfolk.

Thanks.



Kind Personal Regards

Tony Stattersfield

07831 445599

On 2 Feb 2022, at 21:25, Chris Moulding <chrism@...> wrote:

The maximum supply voltage for the LAA++ amplifier is 15 V.

As Stephen has already explained it is unregulated and likely to supply a voltage well above 15 V when lightly loaded.

For example if it's rated at 12 V with a 1 A load on no load it's likely to raise to 1.4 times the load voltage as the regulator capacitor is charged to the peak voltage rather than the RMS rated load voltage.

This would give 12 x 1.4 = 16.8 V which will destroy the amplifier device.

Another alternative if you have to use an unregulated supply is to look for a 9 V version. The peak voltage would be 9 x 1.4 = 12.6 V which will power the LAA++ OK.

Regards,

Chris

Regards,

Chris

John Buckley
 

What price for the RSP2 Pro 2 Tony?
John 


On Thu, 2 Mar 2023, 10:57 Tony Stattersfield via groups.io, <tonystattersfield=icloud.com@groups.io> wrote:
Hi all,

I have two new and unused SDR’s.

CCW Sentinel 4

SDR Play RSP2 Pro.

Is anyone on here interested before I go to Ebay?

I have not used either one.

Can post from North Norfolk.

Thanks.



Kind Personal Regards

Tony Stattersfield

07831 445599

On 2 Feb 2022, at 21:25, Chris Moulding <chrism@...> wrote:

The maximum supply voltage for the LAA++ amplifier is 15 V.

As Stephen has already explained it is unregulated and likely to supply a voltage well above 15 V when lightly loaded.

For example if it's rated at 12 V with a 1 A load on no load it's likely to raise to 1.4 times the load voltage as the regulator capacitor is charged to the peak voltage rather than the RMS rated load voltage.

This would give 12 x 1.4 = 16.8 V which will destroy the amplifier device.

Another alternative if you have to use an unregulated supply is to look for a 9 V version. The peak voltage would be 9 x 1.4 = 12.6 V which will power the LAA++ OK.

Regards,

Chris

Regards,

Chris

Bill Weimann
 

Stop emailing me 

On Thu, Mar 2, 2023 at 5:57 AM Tony Stattersfield via groups.io <tonystattersfield=icloud.com@groups.io> wrote:

Hi all,

I have two new and unused SDR’s.

CCW Sentinel 4

SDR Play RSP2 Pro.

Is anyone on here interested before I go to Ebay?

I have not used either one.

Can post from North Norfolk.

Thanks.



Kind Personal Regards

Tony Stattersfield

07831 445599

On 2 Feb 2022, at 21:25, Chris Moulding <chrism@...> wrote:

The maximum supply voltage for the LAA++ amplifier is 15 V.

As Stephen has already explained it is unregulated and likely to supply a voltage well above 15 V when lightly loaded.

For example if it's rated at 12 V with a 1 A load on no load it's likely to raise to 1.4 times the load voltage as the regulator capacitor is charged to the peak voltage rather than the RMS rated load voltage.

This would give 12 x 1.4 = 16.8 V which will destroy the amplifier device.

Another alternative if you have to use an unregulated supply is to look for a 9 V version. The peak voltage would be 9 x 1.4 = 12.6 V which will power the LAA++ OK.

Regards,

Chris

Regards,

Chris

Jim Smith G0OFE
 

Bill,

To stop the emails:

YOu have the options to either leave the group, or change your email settings by clicking Your Subscription at the bottom of this email.


Cheers

JIm.


================================
Need help with SDR Console? If you have a problem:
Go to https://www.sdr-radio.com/support
Please follow instructions in that link.
===================================
Jim, Bournemouth, Dorset. IO90BR.
Elad FDM-S2, Airspy HF+, SDRPlay and Funcube Dongle SDR Recievers
8-element OP-DES for Band 2, 8-element LFA for 2m, 3-element LFA for 6m, 20m Windom for HF,. Wellbrook 1530 Loop for LF

On 02/03/2023 11:16, Bill Weimann wrote:

Stop emailing me 

On Thu, Mar 2, 2023 at 5:57 AM Tony Stattersfield via groups.io <tonystattersfield=icloud.com@groups.io> wrote:
Hi all,

I have two new and unused SDR’s.

CCW Sentinel 4

SDR Play RSP2 Pro.

Is anyone on here interested before I go to Ebay?

I have not used either one.

Can post from North Norfolk.

Thanks.



Kind Personal Regards

Tony Stattersfield

07831 445599

On 2 Feb 2022, at 21:25, Chris Moulding <chrism@...> wrote:

The maximum supply voltage for the LAA++ amplifier is 15 V.

As Stephen has already explained it is unregulated and likely to supply a voltage well above 15 V when lightly loaded.

For example if it's rated at 12 V with a 1 A load on no load it's likely to raise to 1.4 times the load voltage as the regulator capacitor is charged to the peak voltage rather than the RMS rated load voltage.

This would give 12 x 1.4 = 16.8 V which will destroy the amplifier device.

Another alternative if you have to use an unregulated supply is to look for a 9 V version. The peak voltage would be 9 x 1.4 = 12.6 V which will power the LAA++ OK.

Regards,

Chris

Regards,

Chris

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