Michael Lawson wrote:
"D Peter Maus" wrote in message
...

The problems with the R-75 sync are based on
early users who didn't know how to apply it. It's
not like the Drake. It's a bit fiddly. Follow the
instructions in the manual, it works fine.


I took a look at the online manual, and there's
a lack of description in the manual for the sync,
which surprised me. Unless I was looking in
the wrong place, that is; I just checked again
to make sure, and the only thing as far as
setting is concerned is the configuration whether
the S-AM gets turned on automatically at
low signal levels or whether it's always on.

Oh, now, that's interesting. I got my instructions from the Icom

Rep

at a hamfest. I may still have them around here somewhere. I wasn't
aware there was so little in the manual. But Icom manuals are like

that.

I've discovered half a dozen functions on my R10 that aren't in the
manual, either. Only acknowledged by Icom in supplements released
through limited channels.


If you have those instructions around, it might
not be a bad idea to post them, since as you said,
Icom's manuals aren't the greatest in the world.
(They do make the Sat 800's manual look nice,
tho.)



I'll dig around for them. Not a clue where they got to. I've moved
since then. They may be in storage. I rarely toss a document, so they've
got to be here somewhere.








::snippage::


Yes, if I can find the time for it this winter. Anything
will be worth it to keep the internal noise from the
television at bay and get a bit of directionality so
I can pick up UD basketball games on WHIO 1290
at nighttime.



If it's MW you're primarily interested in, you may consider a
shielded ferrite loop, like the Justice antenna (which can be

mounted

outdoors and elevated for noise avoidance), or, if you can find one,

a

McKay -Dymek DA-5. Amazing how quiet reception can be with the

McKay.

Even indoors.

When I was living downtown, there was no way to get a reliable AM
signal in my building. Even on the 52nd floor, WGN was often buried

in

the noise and WLS wasn't even on the dial. I bought a

Select-A-Tennna.

It takes some careful tuning, but that cleaned up my AM dial in

short

order, not only boosting signal, but reducing noise as well.

It doesn't work that dramatically with every receiver, but in

this

case, it was quite the find.


I'll have to think about that for BCB AM. I'm more
interested in the HF bands, but when the leaves
turn color and college basketball season heats up,
it's time for another season of get-my-heart-broken
time by the Flyers. (At least we don't suck anymore,
like the early 90's.)



Suckage is often cyclic. Ask Chrysler.















Silly indeed. Actually, R-71 audio can be made more tolerable

with a


decent speaker.


Yeah; I built one for the R70, which improved things
a bit. I should still have it lying around somewhere
after we moved to our current house.


KIWA offers an audio upgrade kit for R-71. Craig will install it

for

you for a fee, as well. And even installed, it's not very expensive.
That's actually a mixed blessing. The audio problems with R-71 and

it's

stablemates is not related to poor design of the audio stage. In

fact,

as was pointed out in this forum a couple of years ago, the audio

stage

of R-71 is actually surprisingly clean for a comm radio and quite

robust.

Most of the distortion comes from the mixing and detector stages.

And

for that, there's little remedy. Doing an audio upgrade merely swaps

out

the ceramic caps in the audio path, which are notoriously poor for
audio, replacing them with higher grade, audio friendly caps, which

does

make for a cleaner audio path. But that, in turn, makes the

distortions

more distinct and well defined. The audio goes from 'woolly' to

harsh.

Noticeable particularly on consonants. In the case of R-71, ceramic

caps

in the audio path actually work to your benefit, by smearing the

harsher

elements of the audio across a comparatively wide time

interval,---still

very small, actually---softening the more irritating elements.


So the audio upgrade might not be the best idea,
but definitely the external speaker is. Is that the
case with the R70 as well, or just the R71A? It
might be easier to get that R70 back before I get
an R71A.


As I recall, audio with R-70 was better than R-71, but it's been
awhile since I've used R-70.










Are the better filters on the R71A worth it, like they
were/are for the R-5000?




Absolutely. I installed the FL-44 premium filter for SSB. Made a

huge

difference in rejection on crowded bands. ICOM filters are going to

be

hard to come by, but InRad makes crystal filters for it, that have
received considerable praise. Cost effective, and higher performance
than most factory and aftermarket filters. Too.


I seem to recall that Kiwa made some, too. I'll have
to go check their website for info again. I know
that the R-5000 filters come up regularly on eBay,
however.


You may benefit from a factory alignment after you install them,

though.

You probably know that R-71 originally released with PBT. And a
heated patent infringement battle got that removed. But what's not
widely known, is that removal only consisted of removal of the PBT
components. The map on the board is still there. And the service

manual

still has the PBT section depicted, in detail, on it's schematics.

So,

with a little time inside, and nominal cost, you can restore PBT to

a

non PBT R-71. You'll want to install a premium filter for this at

the

same time.

If you ask real nice, Bellevue may actually still have a PBT
faceplate for this radio.






For the most part, in the dark, they're the same radio.


They were the 1-2 punch in the late 80's, if you couldn't
spring for a JRC. The FRG-8800 always seemed to be
a step behind the R71A and R-5000, and when the 535D
and R8 hit the scene, the 8800 was simply outclassed.


R-71 was sold by the thousands for monitoring stations worldwide.
Most of the big broadcasters used them. Many government agencies

used

them. Some may have seen limited military service by accounts I've
heard. It was the 'it' radio, to be sure. More trouble free than

the

JRC's. And more robust in heavy service applications than most

anything

out there.


More trouble-free than the JRC's? I always thought
that the JRC's (like the 515) were built like tanks.



There was some problem with edge connectors on JRC radios that would
lead to intermitted behaviours at inopportune moments. The fix was a
simple cleaning, but a PITA when you had to get serious and stay serious.

Chrysler isn't doing so bad nowdays,but I still say Chrysler messed up
when they merged with Daimler.Late next year or early 2007,y'all are
going to be seeing made in China cars/vehicles showing up in U.S.A.at
prices of about thirty to forty percent less than cars/vehicles made in
U.S.A.Malcolm Bricklin is who y'all can blame that on.And,will Americans
buy those made in China cars/vehicles? You bet they will! It will
someday be the beginning of the end of the made in America
cars/vehicles.
cuhulin