[AMRadio] Boat Anchor Receiver


Bob Macklin macklinbob at gmail.com
Tue Dec 20 18:36:19 EST 2011


The 4B has a filter that was designed for AM operation. I have a 4A.

I also have a SB-301 with the AM filter. It sounds OK but not as good as the 
SX-110.  But it can hear things the SX-110 cannot.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: <Ka9p at aol.com>
To: <Brett.gazdzinski at verizon.net>; <amradio at mailman.qth.net>
Sent: Tuesday, December 20, 2011 3:23 PM
Subject: Re: [AMRadio] Boat Anchor Receiver


Which makes me want to ask, as it's easier than getting a filter, whether
anyone has opened up the AM bandwidth on the 2B or similar by changing some
caps?

My 4B sounds darn good on AM tho......maybe the answer is in that
schematic?

73 Scott


In a message dated 12/20/2011 5:18:45 P.M. Central Standard Time,
Brett.Gazdzinski at verizon.net writes:

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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