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ai4i
07-09-2009, 10:53 PM
I can not afford one :eek: but the best medium wave AM receiver I have ever used was the Potomac Instruments FIM-41.
Potomac has now released their fully digital PI-4100.
This newer model retails for 33% more than their legacy analogue one.

Here (http://www.potomacinstruments.com/g/fsm2241bw_fullview.jpg) and There (http://168.75.125.68/assets/product_images/large/poto_pi4100.jpg)

John Wilke K9RZZ
08-25-2009, 05:47 PM
http://www.potomacinstruments.com/g/fsm2241bw_fullview.jpg

:confused:

There are much better AM DX receivers out there in the world ... You need to get out more. :D

ai4i
08-26-2009, 02:59 PM
There are much better AM DX receivers out there in the world ... You need to get out more. :D
But, portable?

John Wilke K9RZZ
08-26-2009, 11:17 PM
Well, it's got a nice meter. I'll give you that.

Got specs linked anywhere?

ai4i
08-27-2009, 12:57 AM
Got specs linked anywhere?No, but I have used them for antenna proofs and also took opportunities to test them out on vacant frequencies. They blow the battery covers off GE SupeRadios. Just don't tune to a strong signal in the wrong sensitivity mode, made for professionals who are supposed to know what they are doing, there is no AGC!

John Wilke K9RZZ
09-16-2009, 11:08 PM
I can't believe it will outperform the Icom R71a. I just fired one up I got on eBay and I'm not quite sure what mods were done on it, but this thing is HOT! When I tune from 1601khz down to 1599khz the sensitivity jumps up 30db (really!). It's WOW!! Who ever had this one really did a nice job modifying it. I'll make a video to share.

John Wilke K9RZZ
09-16-2009, 11:09 PM
Oh, and you know what else? It DOES have an AGC! LOL

ai4i
09-17-2009, 08:13 AM
Oh, and you know what else? It DOES have an AGC! LOL
Does that not compromise the precise calibration of the S meter :confused:

John Wilke K9RZZ
09-20-2009, 04:05 AM
Oh, do I care? LOL

I did learn, just now, that the switching PS I've been using to run it on DC is a serious noise generator. Gotta dig out the big Astron ... see if that's quieter.

http://www.youtube.com/watch?v=e4ck-esxiws