Re: 23cm pre amplifier
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.
From: UKMicrowaves@groups.io <UKMicrowaves@groups.io> on behalf of GM6VXB via groups.io <martin.andrew@...>
Sent: 22 September 2020 14:15
To: firstname.lastname@example.org <email@example.com>
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.
(QRT 23cm until sorted.)