| |
CE3CLW > MODS 03.10.96 04:28l 87 Lines 4110 Bytes #999 (0) @ WW
BID : 58332_CE3CLW
Read: GUEST
Subj: (4) AOR AR-1500
Path: DB0AAB<DB0MWS<DB0KCP<HB9OS<HB9H<HB9OK<IW2FPO<IK2QCA<I1ICZ<IK1ZZN<
IK1MSL<I1NHK<I1DEP<IW2KTL<I4EUM<IK2FMJ<IK5CKL<I4UKI<I4FP<IW4CRL<IW4CNQ<
IK4ICZ<I4UJB<I4UJB<EA6PZ<CE3PGM<CE3CLW
Sent: 960928/1450Z @:CE3CLW.#SAN.CHL.SA #:58332 [Las Condes] FBB5.15c
From: CE3CLW@CE3CLW.#SAN.CHL.SA
To : MODS@WW
SSB OPERATIONS
==============
One of the more intriguing features of the AR1500 is the ability to decode
SSB. The AR1500 includes a BFO that you can use to tune in upper or
lower side-band signals. There are a number of limitations to this feature,
however.
I had hoped that you could simply program in a number of utility stations
and scan them in SSB. However there are a couple of things that make this
impossible. First, the squelch control on the AR1500 is as squirrelly as it is
on the AR1000. The squelch setting is different for different bands, and in
the SW region it is practically useless. You cannot squelch out many
frequencies, even if they don't appear to have an active signal or carrier.
Therefore, you can't really scan these frequencies.
The second problem has to do with the resolution of the AR1500. The finest
tuning increment you can select is 5 KHz. You use the BFO to tune between
the 5 KHz limitations. So, for example, if you wanted to pick up 8989
KHz, you would have to enter 8990 and then tune down to 8989 with the
BFO. Of course, the setting on the BFO would be different for this station
than it would for 7613 (you'd have to enter 7610 or 7615 and tune in
between with the BFO). What this means is even if you could scan SW
stations, the BFO would be set at a different location for each station.
While I didn't try this with CB, presumably you could enter all 40 CB
channels, set the BFO to USB and scan all the USB CB channels. Then,
just by turning the BFO a bit, you could scan all the LSB CB channels. If
any AR1500 user can confirm this, please drop me email and I'll update this
document with your comments.
The unit I tested also put out an extremely high-pitched whine while tuning
in the SW bands.
SEARCH AND STORE
================
The search and store feature provides a way to automatically take active
channels that you find during a search and plug them into scan channels.
The search and store feature on the AR1500 is pretty limited in its capability
and usefulness. This is somewhat frustrating, especially since all of the
capabilities are built into the AR1500 to have made this a much more useful
feature.
Whenever you search with search bank 9, every channel it stops on is
automatically plugged into the next succeeding scan channel in scan bank 9.
The first signal goes into channel 900, then 901, etc until you fill up all 100
channels in scan bank 9. When you reach channel 999, the unit starts over
with channel 900 again.
The way you would use this is to start searching and then later simply scan,
using scan bank 9. The problem with this feature in the AR1500 is that it
stores anything it stops on during a search. It will store open carriers, data
channels, static, and any other kind of signals. The biggest problem,
however, is that it stores the same frequencies over and over again.
This could have been eliminated and the search and store feature could have
been made to be much more useful had AOR simply combined the search
frequency lockout feature with the search and store feature. This way, as
soon as the scanner stopped on an active frequency during a search, the
frequency would be stored in scan bank 9 and be locked out of search bank
9. Then, an active frequency would only be stored once. In addition, the
scanner wouldn't have to needlessly stop on channels you have already
stored, making it more likely that you could catch the elusive signals in the
range you are searching. Then, when you scan bank 9, you'd get all the
frequencies found during your search with no repetition. Alas, it wasn't
implemented this way, so IMHO the search and store feature is quite a bit
less useful.
In addition, the search and store feature only stores the mode as AM or FM.
If you are searching in WFM mode, the channels get stored as FM mode,
not WFM mode.
Copiado del QRZ HAM RADIO WINDOWS CD-ROM JAN 1996
Internet : osvaldo.ossa@chilnet.cl
73. Osvaldo, CE3CLW @ CE3CLW.#SAN.CHL.SA
Read previous mail | Read next mail
| |
