Re: 23cm pre amplifier


Conrad, PA5Y
 

Hello Martin, the PGA-103 is the 2nd stage of the amplifier. 

Have a look here:


There is also a single stage LNA but that does not have a PGA-103 in it.

Regards

Conrad PA5Y




From: UKMicrowaves@groups.io <UKMicrowaves@groups.io> on behalf of GM6VXB via groups.io <martin.andrew@...>
Sent: 22 September 2020 14:15
To: ukmicrowaves@groups.io <ukmicrowaves@groups.io>
Subject: [UKMicrowaves] 23cm pre amplifier
 

After a few good days on tropo, this morning turned on the 23cm system to find that the pre amplifier had died.

This was a very good VHF Designs low noise high gain pre-amp.

Found that the initial device had gone short. Paperwork says an 'SKY67151', but looking closely it looks like

and is marked as a PGA-103.

Anyway, replaced it with a 103 but the pre amp is still very low (maybe no) gain.


So is there a good source of 'built' pre amplifers as the only ones I can see are the VHF design ones.


Eyesight now not good enough to try to build one of the DDK ones.


Martin, GM6VXB


(QRT 23cm until sorted.)

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