I don't know that particular duplexer. The close spacing capability is not
an indication that it is a band pass/band reject or a straight notch type
unit. It could be either.
The difference in the smaller mobile type or smaller rack mount type
duplexers is usually in the insertion loss. The
Don,
The manual I have for a Celwave 5042M-1-2-3 does not spec a power rating for
use at less than 1.0 MHz of 200 W.
It indicates the unit is tunable from 132 to 174 MHz with a band split at 145
MHz requiring different loop assemblies.
Since there are 3 ranges I assume there are three
Don,
The Celwave PD5042-1 Duplexer was made in two versions, the PD5042-1-05, and
the PD5042-1-50. Both versions are described in the Celwave and Motorola
catalogs as dual pass-notch duplexers.
The PD5042-1-05, AKA the Motorola RDD4900A, was intended for a minimum TX-RX
separation of 500 kHz.
Celwave was bought by RFS. I will send you the tuning info I have on the
5042-1 direct.
73 Russ, W3CH
- Original Message -
From: milguy111 [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, December 11, 2004 5:12 PM
Subject: [Repeater-Builder] celwave 5042-1
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