"ER-861"
Gentlemen,
Thanks to your helpful replies I was able to find this (It refers to a "ER-861"):
Specifications
Input Frequency 3.4 to 4.2 GHz
L.O. Frequency 5150 MHz (500 KHz @ 25C)
L.O. Stability 1.5 MHz (-40 to +70C)
Output Frequency 950 to 1750 MHz
Conversion gain 55 dB typical
Input VSWR 2.5:1 (maximum)
Output VSWR 2.0:1 (maximum)
0utput connector F female connector
Output Impedance 75 ohms
Cross Polar Isolation 20 dB (minimum)
Image Rejection 45 dB (minimum)
Phase Noise -85 dBc @ 10 Khz (minimum)
Supply Voltage:
11.5 to 14.0 V (vertical)
16.0 to 19.0 V (horizontal)
Mine had no scalar ring. It was somehow fixed to a cracked (!) original Channel Master plastic feed support clamp (without its top part) with
bale wire (thus the Caribbean way...
)
Saludos
Muchas gracias
Janin