R75 as an MW receiver?
 

Hi,

I mostly do MW listenign/dx'ing. I would be interested in feedback
on how well the R75 performs on MW. I know there are Kiwa mods to
increase the MW sensitivity. Are these really necessary? Is the
difference that dramatic?

Well anyway, I would be interested in any user input on the R75.

Thank you
Russ K3Pi

"radiok3pi" wrote in message
om...
Hi,

I mostly do MW listenign/dx'ing. I would be interested in feedback
on how well the R75 performs on MW. I know there are Kiwa mods to
increase the MW sensitivity. Are these really necessary? Is the
difference that dramatic?

Well anyway, I would be interested in any user input on the R75.

Thank you
Russ K3Pi

Hiya... I have an R-75 and I like it quite a bit, but not for MW. It is
sensitive enough and works just fine on most MW, but if you want to DX a
weak MW signal I find that the R-75 is too noisy. Way too much snap crackle
and pop. I use a GE SR-III for MW DX'ing. Because it is analog it is quite
as can be. The draw back is that the tuner dial is not accurate at all.
I've read/heard that the CC Radio Plus is better then the GE-SR series
because it has an accurate tuner. It may not be as sensitive as the GE-SR
III or as quite, but it is probably one of the best MW radios available. I
also know that there are a lot of people that use old analog tuning
automobile radios as their MW DX'ing radio but I wouldn't know about which
ones to use or how to get them...

So... For MW, you have way better choices then the R-75. The R-75 shines
for sw utility and sw DX'ing using ssb and ECSS tuning, but it isn't
regarded as a MW radio.

Hope that helps...

--
Respectfully,

Michael

Location: New Jersey
Primary Receiver: R-75 with full Kiwa mods
Antennas: G5RV, 200ft "Frankenstein" roof wire
Additional Radios: 7600GR,KA-1101,KA-1102
PL-550, KA-989, Info-Mate 837, GE-SR III
Westinghouse H-104 (seven tube)
Web Site: http://md_dxing.tripod.com

Excluding mega-buck military or maritime radios, the legendary Drake R7A is,
in
my opinion, the BEST solid-state MW DX radio ever made. If you can find a
used
one in good condition, grab it. I have one, and will NEVER part with it.

I had both the R-7A and the HQ-180 at the same time. The R&A is superb, but its
audio made it hard to ID stations, but it could sure dig out the DX; it is
still regarded as the best radio of any type for the "tropical bands" 2-4 MHz.

The HQ-180 had superb audio, and DX "dig" ability. But not great on frequency
readout.

BTW the Skanti 5000/5001 is the equal of the R7 in performance. It's what I use
now for AM DXing.

The R-75 is SO sensitive that the MW area has something to attenuate MW
signals;
So you don't get overloaded from local statins
However;
R-75 does Work pretty good with an external antenna.

IF you're just after MW, Suggest getting
something else & an external / Justice / Loop antenna


Dan / NYC


In article ,
(radiok3pi) writes:

18 Sep 2004 15:16:17 -0700

Hi,

I mostly do MW listenign/dx'ing. I would be interested in feedback
on how well the R75 performs on MW. I know there are Kiwa mods to
increase the MW sensitivity. Are these really necessary? Is the
difference that dramatic?

Well anyway, I would be interested in any user input on the R75.

Thank you
Russ K3Pi

RFCOMMSYS wrote:

wrote:


Hi,

I mostly do MW listenign/dx'ing. I would be interested in feedback
on how well the R75 performs on MW. I know there are Kiwa mods to
increase the MW sensitivity. Are these really necessary? Is the
difference that dramatic?

Well anyway, I would be interested in any user input on the R75.

Thank you
Russ K3Pi



I assume you're looking for a desktop radio.

I think you can do better than an R75 for MW.

Get a Drake R8B if you can afford it. It's got an excellent synch detector. If
price is an issue, the Palstar R30 is supposed to be a superb (albeit no bells
or whistles) MW radio for it's price, which I believe is cheaper than an R75.

Excluding mega-buck military or maritime radios, the legendary Drake R7A is, in
my opinion, the BEST solid-state MW DX radio ever made. If you can find a used
one in good condition, grab it. I have one, and will NEVER part with it.

Or the R7, it's the same radio. (Though R7A's always seem to command a higher
price). Hanging on to mine also.

I have the 8, 6, 4, 3 and 2.3 filters in mine.

dxAce

In article ,
Michael wrote:
....
and pop. I use a GE SR-III for MW DX'ing. Because it is analog it is quite
as can be. The draw back is that the tuner dial is not accurate at all.
I've read/heard that the CC Radio Plus is better then the GE-SR series
because it has an accurate tuner. It may not be as sensitive as the GE-SR
III or as quite, but it is probably one of the best MW radios available. I
also know that there are a lot of people that use old analog tuning
automobile radios as their MW DX'ing radio but I wouldn't know about which
ones to use or how to get them...
....

Here's a suggestion, hit a swap meet (or ebay) and get 1) rf signal
generator and 2) a (digital) frequency counter. When you're lost on
the SR-III, (turn on and) adjust the generator (with the counter hooked
up and working) until you get a heterodyne and then just read out the
frequency.

The same thing could be done with a second receiver with a digital readout
using the local oscillator, remembering to compensate for the IF offset.
I can do this with my R-1000 because is leaks a signal 455 kHz above
the received frequency. (It's not the LO, as the R-1000 first IF is
45.something MHz. It's the signal used to drive the digital readout.
The frequency synthesizer board in the R-1000 is pretty baroque).

Mark Zenier Washington State resident

Don't know if anyone mentioned removing the R-75's mw attenuator, which should
help make the R-75 more amenable as an mw dx tool. Antenna orientation is a
factor, also. Have a 130 ft. of 16 gauge wire, ground terminated for a
beveredge effect. Is most efficient bringing in Bay Area & SoCal am'ers. But
it's a bit deaf snagging Denver's flamethrower KOA , however.

"Mark Zenier" wrote in message
...
In article ,
Michael wrote:
...
and pop. I use a GE SR-III for MW DX'ing. Because it is analog it is
quite
as can be. The draw back is that the tuner dial is not accurate at all.
I've read/heard that the CC Radio Plus is better then the GE-SR series
because it has an accurate tuner. It may not be as sensitive as the GE-SR
III or as quite, but it is probably one of the best MW radios available.
I
also know that there are a lot of people that use old analog tuning
automobile radios as their MW DX'ing radio but I wouldn't know about which
ones to use or how to get them...
...

Here's a suggestion, hit a swap meet (or ebay) and get 1) rf signal
generator and 2) a (digital) frequency counter. When you're lost on
the SR-III, (turn on and) adjust the generator (with the counter hooked
up and working) until you get a heterodyne and then just read out the
frequency.

That is a nifty idea.... I wish they would just make the thing accurate ....

Michael

In article ,
(radiok3pi) writes:


Hi,

I mostly do MW listenign/dx'ing. I would be interested in feedback
on how well the R75 performs on MW. I know there are Kiwa mods to
increase the MW sensitivity. Are these really necessary? Is the
difference that dramatic?

Well anyway, I would be interested in any user input on the R75.

Thank you
Russ K3Pi

I've been able to pick up New York Stations in The Bahamas if conditions are
right..
on a truly Junk Shortwave radio

I think antenna and Lack of local noise are the real issues,