All the RA1792s I have seen (admittedly all of the same vintage,
manufactured within a couple of years of 1981) use a 455kHz 2nd IF. But
since they also only have 10Hz steps there is obviously a later version, so
it is possible later models could have a 100kHz output.
As for the random parameters junmping... The Rx uses battery backed up RAM
for non volatile parameter storage, and the NiCd battery will eventually
give up, so you could try replacing this - they are cheap enough to just
try. On the receivers I have seen, this it is mounted on a PCB on the
right hand side of the chassis when you open up the top of the unit. But I
suppose that over the years things could have changed and it could be on the
more difficult to get at front panel PCB.
Andy G4JNT
-----Original Message-----
From: Brian Rogerson [mailto:[email protected]]
Sent: 2001-08-06 08:45
To: [email protected]
Subject: LF: <TECH> RA1792
To All,
The manual I eventually had to buy for the RA1792 and supposedly for
this particular model shows that the main IF output (J2) is on 455KHz.
It seems to be on 100KHz. Can anybody throw any light on the subject?
I didn't receive any replies on the random jumping of parameters so I
have to assume that this is not a widespread problem with a routine
solution.
With thanks in advance, 73, Brian
73 Brian CT1DRP IN51QD 41 09 58N 08 39 11W
http://homepage.esoterica.pt/~brian
--
The Information contained in this E-Mail and any subsequent correspondence
is private and is intended solely for the intended recipient(s).
For those other than the recipient any disclosure, copying, distribution,
or any action taken or omitted to be taken in reliance on such information is
prohibited and may be unlawful.
|
