[AMRadio] Boat Anchor Receiver

Sat Dec 24 15:59:07 EST 2011

That was not why I built my own.
The initial plan was to build something that I could use under good 
conditions so I could say the station was all home brew.
Think a well working regen, but I never had a lot of luck with regen 
circuits.
What I ended up with worked better then anything else, so the old stuff went 
out the door.
And its dirt simple, which is why its quiet I guess.

There seems to be 4 important area's for a good AM receiver that you want to 
use on the lower bands:
The IF filter, for me, the kiwa filters work fantastic, just like mechanical 
filters, and they were only $50.00.
The detector (for low distortion),
The frequency readout (an AADE digital display/freq counter took care of 
that).
Stability, I found it easy to build a stable LO if you use B+W coil stock.

Besides the passband options on the flex gear, the homebrew works better, 
better on weak signals, lower noise, more sensitive.

Brett
N2DTS

----- Original Message ----- 
From: "C.L. Mitchell" <rsq14adam1 at hotmail.com>
To: <brett.gazdzinski at verizon.net>; <amradio at mailman.qth.net>
Sent: Saturday, December 24, 2011 2:57 PM
Subject: Re: [AMRadio] Boat Anchor Receiver

Guess these issues are why I built my own.

Mitch
K9PNP

> From: Brett.Gazdzinski at verizon.net
> To: amradio at mailman.qth.net
> Date: Tue, 20 Dec 2011 18:18:32 -0500
> Subject: Re: [AMRadio] Boat Anchor Receiver
>
> I never had one, there are a few receivers I never had or tried.
> They look good, and are simple enough to work well maybe.
>
> I think they had a 455 KHz IF which opens up the ability to fit a good
> filter in the radio.
>
> Most of the vintage receivers had three major problems in my book, poor
> selectivity, poor frequency resolution, and distortion and/or high
> background noise.
>
> Some vintage receivers sounded very good, but who know what frequency they
> were on and forget about using them under battle conditions.
> Others were very accurate (Collins) and loaded with distortion and very 
> poor
> fidelity, others were just way too narrow (Drake).
>
> RME receivers seem sort of rare....
>
> Brett
> N2DTS
>
>
> ----- Original Message ----- 
> From: "Daniel Wright" <dwright12 at neb.rr.com>
> To: <amradio at mailman.qth.net>
> Sent: Tuesday, December 20, 2011 4:53 PM
> Subject: Re: [AMRadio] Boat Anchor Receiver
>
>
>
> Yeah...an RME 4350. I have a Ranger and a 4350 that need checked out and
> then I'll put 'em on!
>
> 73 de Dan -- WAØJRD ..
>
>
> > Well, I never kept any equipment around long that looked ugly, so I can
> > relate a bit to wanting something to match.
> > I have no idea what would match a ranger well and still make a good
> > receiver.
> > I never liked most ham receivers for very long, the r390a lasted the
> > longest, up till the homebrew receivers were done, then it went out the
> > door.
> >
> > Maybe an old RME receiver would be a good match, they were on the small
> > side, no?
> >
> > Brett
> > N2DTS
> >
> >
>
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