Re: 10MHz buffer amplifier
Many thanks for all the useful replies regarding the 10 MHz line driver. Perhaps a little more detail on my application is appropriate. I now have four portable systems for 23, 13, 6 and 3cms. As I have built each one I have built it as a standalone system with its own frequency reference so I now have an assortment of OCXO's of dubious origin and GPSDO's. I am now trying to integrate the four systems by using multi-band dish feeds and by reducing the number of support boxes. All four systems need a 10 MHz reference so I have invested in a high quality OCXO and now wish to feed it to all four systems. I am very space-limited and would like to put the system in the physical location of one of the GPSDO's. It means I have to build the unit into an identical box so the use of pre-built units is not appropriate.
The LM7171 has been suggested, but I tried this device driving 25MHz up a long piece of coax to the QO-100 LNB and found it was severely slew-rate limited. Changed to a BUF634 and this was OK. In this application the frequency is lower and the length of coax much less so the LM7171 may be OK. The BUF634 only has a gain of 0dB and in this case I need a gain of around 12dB so hence my quest for a suitable device.
I will follow-up some of the suggestions which may well be fruitful. Thanks once again for the assistance.
Ed, G3VPF IO80RQ
From: UKMicrowaves@groups.io <UKMicrowaves@groups.io> on behalf of Dennis Anderson via Groups.Io <g6ybc@...>
Sent: 03 January 2020 13:55
To: UKMicrowaves@groups.io <UKMicrowaves@groups.io>
Subject: Re: [UKMicrowaves] 10MHz buffer amplifier
I believe that SDR-Kits are selling some
On Thursday, January 2, 2020, 10:14 pm, Neil Smith G4DBN <neil@...> wrote: