[Premium-Rx] What are these outputs on back of wj 8618B (S 1)?

[refmon]

Ben,

The XYZ out will be dead on your rx---this is for an X-Y display with 
intensity (Z) control, which is associated with the Digitally Refreshed 
Display option

SW IF Out is an IF monitor point that is after the IF filters--bandwidth 
will be that of the selected IF filter

FM Mon is the discriminator output, which is always active regardless of 
demodulation mode

SW Video is the DC-coupled detector output - mode is the selected 
demodulation mode - yes, demod mode selected being FM, the SW Video will be 
the same--discriminator out.

WB IF Output ---this is best when you use the optional module "WBO", which 
is a wideband IF processor that is agc'd to approx -30dbm.  This is actually 
intended to feed to other IF-driven equipment such as direction finder, aux 
demodulators and subcarrier demods, etc etc.  You can use this as your 
"tuning scope" output, as you are doing.

EM is the extended memory option--consult the manual, as memory use on these 
rx's is somewhat different than scanners today...suffice it say, you get 
more channels with EM.

FE is frequency extension (don't confuse with FEX, which tunes to 1200MHz), 
which extends to cover up to 1100MHz

LFE is low frequency extension, which enables tuning down to 2MHz, if I 
recall properly.  (see HFE, below)

LOC is lockout..., which is a memory item---similar to lockout on scanner, 
but significantly more involved in use

SM is Signal Monitor, which is the green scope unit on the left side of the 
front panel.

I'm not sure, but you may also have the HFE option, unless the HFE 
functionality is included in the LFE option.  Sorry, I don't have all the 
manuals unpacked yet.

You can also take a look at the Watkins Johnson Info site, originated and 
maintained by Terry O'Laughlin, a long-time list member.  Go to: 
http://watkins-johnson.terryo.org/

good luck with that rx, and have fun!!

John Collins

----- Original Message ----- 
From: "Ben Mesander" <benmesander at yahoo.com>
To: <premium-rx at ml.skirrow.org>
Sent: Sunday, October 22, 2006 11:10 AM
Subject: [Premium-Rx] What are these outputs on back of wj 8618B (S 1)?


> Well, thanks to Steve, my audio output on the radio is
> no longer so hot it explodes sound cards.
>
> While I had the radio out of the rack, I wondered what
> the following outputs are:
>
> X, Y, Z OUT - presumably for a scope? What kind of
> pictures does it draw?
>
> What are the following? (definition, dBm, frequency
> range)
>
> SW IF OUT
> FM MON
> SW VIDEO
> WB IF OUT <-- I have this one hooked to the direct
> input on my SDR-14, and use it to tune around VHF/UHF
>
> The radio has the following options:
> EM, FE, LFE, LOC, SM
>
> Regards,
> Ben
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> _______________________________________________
>
> Premium-Rx Mailing List
> To Post: premium-rx at ml.skirrow.org
> For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx
> Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
>
>