Red Wave Radio

I have a Realistic DX-302 I purchased in the early 80's. Can anyone tell
me who made this radio for Rshack? Also, are there any mods for this
receiver? Thanks, Don

C.K.

Jim

C.K.

Yet, almost a generation ago now --- 1980 --- Yaesu was just entering
the US market and supplied RS with the DX 300/302 receivers.
I've always wondered what the Japanese must have thought of some RS
features --- like the Morse code practice facility.

Then again, I rember when Tandy didn't own RS, it had 7 stores, most
in Boston, ans sold tires through the mail.

J.M.

Dave

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: >> >Believe that it was built by GRE... not aware of any mods for it,

I don't think GRE made it and I'm not even sure that GRE was around
then.

: Yet, almost a generation ago now --- 1980 --- Yaesu was just entering
: the US market and supplied RS with the DX 300/302 receivers.

I also don't think Yaesu built it even though it looks about the
same size as a FRG-7 with similar features and spec's. and has a
preselector.

I would like to know who built it but believe it was made in either
Korea or Mexico. I remember reading about quality control problems
with the DX-300 and DX-301. Not sure if it was all corrected in the
DX-302.

: Then again, I rember when Tandy didn't own RS, it had 7 stores, most
: in Boston, ans sold tires through the mail.

: J.M.

C.K.

jarad

I thought that I read somewhere in my travels that they were
designed and built for RS by GRE, but not absolutely sure of
that.  The do bear a striking resemblence to General Electric
multiband radios from the same time period, but that could
probably be true for all radios of the time (Panasonic et al).

Having owned both the '300 and the '302, I can see what was im-
proved with the later model; probably the most significant of the
changes was the incorporation of a true 2-position IF bandwidth
user adjustment, as opposed to an 3-position audio filter on the
'300.  The '302 is also much less prone to internal heterodynes,
not _totally_ free from them, but it's a lot less of a problem.
The '300 had birdies on all even MHz settings (i.e. 5.000, 6.000,
etc.) and these would beat against WWV.  There was also an ex-
tremely strong one at 1.000MHz that would totally obstruct re-
ception in that area of the MW band.  This '302 has a weak
birdie at 910KHz, but that's about the only one I've noticed so
far.  RS issued service bulletins for the '300 that described
modifications to improve stability and reduce image/intermod
problems, but these were incorporated into the manufacture of
them after a certain date code (they were added to mine).  I
think that if you contact the RS Technical Library you can
get copies of that information.

(While we're on that subject, they just sent me a copy of the
 service manual for the DX-200 this week; only set me back
 $5.00...)

They're okay radios for what they sell for used today, if and
when you can find one, as long as you are aware of their in-
herent limitations.  Definitely _not_ the receiver of choice
for anyone who changes SW bands often... :^)

C.K.

thanks,
Ken,  N1KK

C.K.

Hi Dave
Here I am again - ran into you twice in one day!!!
I am somewhat of a expert on DX300/302's. The bedst thing to do with them
is give 'em a super alignment and tweeking, peaking session. I am
currently using two 302's and a 300. No complaints. Drift is not bad if
warmed up for 30 mins. By the way; 300 (despite shortcommings with audio
filters and no IF filters) can be aligned and calibrated to be great AM
B'cast receiver.
Se U again,

RE: BFO - L312 is on the front/right with rig facing you.
Set BFO to center and tune to ZERO BEAT a local AM station.
Tweek L312 for the same audio pitch in both LSB and USB.
That is the short-cut method.
The other way is by-the-book with a sig gen, but gives the same results.
Happy listening,
Bob