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 Improved FT-847 stability 
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Post Improved FT-847 stability
Made a big difference, and now spot on frequency.

http://g.zs5wo.net/construction-and-pro ... t-847-mods

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Sat Jun 22, 2019 7:05 am
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 Improved FT-847 stability 
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Post Re: Improved FT-847 stability
Excellent!
Looks just the job for my 847, which I was putting off tweeking.


Sat Jun 22, 2019 9:37 am
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 Improved FT-847 stability 
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Post Re: Improved FT-847 stability
G8NYZ wrote:
Excellent!
Looks just the job for my 847, which I was putting off tweeking.


I always put off trying to set the reference, easy to make it worse, and hard to make it better again.
I have a large L shape screwdriver made out of a bare piece of fibreglass PCB, it helps to make fine adjustments easier.


I am very pleased with the mod, it looks as if it has moved about 20Hz over the whole day (2m), and that has been so slow it would not affect any contact.

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Sat Jun 22, 2019 5:16 pm
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 Improved FT-847 stability 
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Post Re: Improved FT-847 stability
One for my to do list!

Len

Ps drove past your place last weekend. SatNav took me a scenic route to Bedford from Birmingham Airport.

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Sat Jun 22, 2019 5:43 pm
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 Improved FT-847 stability 
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Post Re: Improved FT-847 stability
GM0ONX wrote:
One for my to do list!

Len

Ps drove past your place last weekend. SatNav took me a scenic route to Bedford from Birmingham Airport.



Well, second day now, and still feel the effectiveness of it, I think one of the best mods I have made to the 847.

Not certain I would call the A45 scenic :) but definitely the easiest route between the two points.

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Gee Three Eee Jay Ess - RSGB, SARL, G-QRP, EPC
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Sun Jun 23, 2019 10:55 am
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 Improved FT-847 stability 
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Post Re: Improved FT-847 stability
If you can hear GB3MCB on 50.005 have a look here https://www.rudius.net/oz2m/sbp/

Using the PI 4 software it gives you a good idea how close and stable your RX is,

There is a few others active one here in EI and another in GI, not sure which you might hear but it's a handy reference,

All the beacons are GPS locked so should be fairly accurate,

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Sun Jun 23, 2019 11:30 am
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