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The Old CATV Equipment Museum
Test Equipment

Signal Level (Field Strength) Meters
Group 3: Mid States Communications to Wavetek

CONTENTS OF THIS PAGE
Mid State Communications Signal Level Indicating Meter Model SLIM
Philco VHF Field Strength Meter
Radion VHF-UHF Portable Field Strength Meter
Radion VHF-UHF Portable Field Strength Meter Model 5000
Sadelco Model FS-1 Field Strength Meter
Sadelco Model FS-2 Field Strength Meter
Sadelco Model FS-3 Field Strength Meter
Sadelco Model FS-3B Field Strength Meter
Sadelco Mini Meter Model Sadelette
Sadelco Model FS-3D VU Signal Level Meter
Sadelco Model FS-3D VS Signal Level Meter
St. Petersburg Com. Signal Level Meter Model CM-213A
St. Petersburg Com. Signal Level Meter Model CM-213A #2
Sencore, Inc. Model FS134 Field Strength Meter
Sencore TV Signal Analyzer Model FS74 Channelizer Sr.
Simpson TV Field Strength Meter Model 488
Simpson TV Field Strength Meter Model 498
Texscan 450 MHz Signal Level Meter "Model Digitech1
Texscan Model "Spectrum 600" Signal Level Meter
Texscan/Theta-Com Model 7270 Signal Level Meter
Texscan/Theta-Com Model 7271 Signal Level Meter
Texscan/Theta-Com Model 7272 Signal Level Meter
Texscan Tuner Modules for 727-series Signal Level Meters
Transvision Field Strength Meter
Transvision Field Strength Meter
Video Instrument Corp Signal Level Meter
Vikoa Inc. Signal Level Meter Model 481
Wavetek Model LM-13 Signal level Meter
Wavetek Model SAM-1000 Signal Analysis Meter
Wavetek Model SAM-1500 Signal Analysis Meter
Wavetek SAM I Signal Analysis Meter
Wavetek SAM II Signal Analysis Meter
Wavetek SAM I 450 Signal Analysis Meter
Wavetek SAM Jr Signal Level Meter


Mid State Communications Signal Level Indicating Meter
Model SLIM


TypeField Strength Meter
Tuner typeProgramable Push Button Select
Tuning rangeVHF - UHF channels
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitdBmV

Photo:Lew ChandlerHigh resolution
   

Photo:Lew Chandler

Philco VHF Field Strength Meter
Model 8014


TypeField Strength Meter
Tuner typeDetent
Tuning rangeVHF channels 2-13
Input terminalsScrew terminals
Input impedance300 ohms
Display typeAnalog meter
Display unitMicrovolts

Photo:Lew ChandlerHigh resolution
    Philco Corporation Manual
Philco Field Strength Meter Model M8104

Photo:Lew Chandler

Radion VHF-UHF Portable Field Strength Meter

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13, UHF channels 14-83
Input terminalsScrew terminals
Input impedance300 ohms
Display typeAnalog Meter
Display unitMicrovolts


Photo:Lew ChandlerHigh resolution
   

Photo:Lew Chandler

Radion VHF-UHF Portable Field Strength Meter
Model FSM 5000

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13, UHF channels 14-83
Input terminalsScrew terminals
Input impedance300 ohms
Display typeAnalog Meter
Display unitMicrovolts


Photo:Lew ChandlerHigh resolution
    Radion Corporation Manual
Radion Field Strength Meter Model FSM 5000

Photo:Lew Chandler

Sadelco Field Strength Meter Model FS-1

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13
UHF channels with separate tuner (not pictured)
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Sadelco Field Strength Meter Model FS-2

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13, FM
UHF channels with separate tuner (not pictured)
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitDecibels and Microvolts

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Sadelco Field Strength Meter Model FS-3
Marked on Back Plate as Jerrold 720-B

Jerrold re-sold meters made by several companies.
Besides Sadelco they re-sold meters made by PECA
and TACO. TACO (Technical Appliance Corp.) was
acquired by Jerrold and PECA is still in operation today.
(www.pecapeca.com)


TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13, FM, UHF channels 14-83
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitDecibels and Microvolts

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Sadelco Field Strength Meter Model FS-3B

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13, FM, UHF channels 14-83
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitDecibels and Microvolts

Photo:Lew ChandlerHigh resolution

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Sadelco Mini Meter
Model Sadelette

TypeField Strength Indicating Meter
Tuner typeSingle Channel (pre programed)
Tuning rangeVHF Fixed Pre Programed Channel
Input terminalsF Connector
Input impedance75 ohms
Display typeLevel Indicating Light

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler
+++++++++++++++++++++++ +++++++++++++++++++++++

Sadelco Model FS-3D VU Signal Level Meter

Donated by Stan Rife

TypeSignal Level Meter
Tuner typeContinuous
Tuning range VHF: 54-216 MHz
  (Low, Mid, and High Band channels highlighted)
UHF: Channels 14-83
Input terminalsF Connector
Input impedance75 ohms
Display typeAnalog Meter
Display unitdBmV

Photo:Lew ChandlerHigh resolution

Photo:Lew ChandlerHigh resolution

Photo:Lew Chandler

Sadelco Model FS-3D VS Signal Level Meter

TypeSignal Level Meter
Tuner typeContinuous
Tuning range VHF: 54-400 MHz VHF channels 2-53
  (Low, Mid, High Band (bottom tuner) and Super band channels (top tuner)
Input terminalsF Connector
Input impedance75 ohms
Display typeAnalog Meter
Display unitdBmV


Photo:Lew ChandlerHigh resolution

Photo:Lew ChandlerHigh resolution

Photo:Lew Chandler

St. Petersburg Communications Signal Level Meter
Model CM-213A
Donated by Graham Stubbs

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts and dBmV


Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

St. Petersburg Communications Signal Level Meter
Model CM-213A

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts and dBmV

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Sencore, Inc. Model FS134 Field Strength Meter

TypeField Strength Meter
Tuner typeContinuous
Tuning rangeVHF: Channels 2-13
UHF: Channels 14-83
Input terminalsF Connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts

Photo:Lew ChandlerHigh resolution


Photo:Lew Chandler

Sencore, Inc. TV RF Signal Analyzer
Model FS74 Channelizer Sr.

Donated by Kaz Majewski

TypeSignal Level Meter
Tuner typeContinuous
Tuning rangeVHF: Channels 2-78, FM
UHF: Channels 14-69
Input terminalsF Connector
Input impedance75 ohms
Display typeAnalog level meter
Digital tunning meter
Display unitdBmV, Microvolts

Photo:Lew ChandlerHigh resolution


Photo:Lew Chandler

Simpson TV Field Strength Meter Model 488

Donated by Graham Stubbs

TypeField Strength Meter
Tuner typeDetent
Tuning rangeVHF channels 2-13
Input terminalsBinding posts
Input impedance75 or 300 ohms
Display typeAnalog meter
Display unitRelative field strength

Photo:Lew ChandlerHigh resolution


Photo:Lew Chandler

Simpson TV Field Strength Meter Model 498

TypeField Strength Meter
Tuner typeDetent
Tuning rangeVHF channels 2-13 UHF channels 14-83
Input terminalsBinding posts
Input impedance300 ohms
Display typeAnalog meter
Display unitRelative field strength

Photo:Lew ChandlerHigh resolution


    Simpson Electronics Company Manual
Simpson Field Strength Meter Model 498

Photo:Lew Chandler

Texscan 450 MHz Signal Level Meter
Model Digitech1

TypeField Strength Meter
Tuner typeDigital
Tuning range 5 to 450 MHz - CATV channels 2-62
Input terminalsF connector
Input impedance75 ohms
Display typeDigital meter
Display unitRelative field strength

Photo:Lew ChandlerHigh resolution


Photo:Lew Chandler

Texscan Model Spectrum 600 Signal Level Meter
Includes padded carrying case for field use.
TypeSignal Level Meter
Tuner typeContinuous
Tuning range 0 to 600 MHz
CATV channels 2-58 (2-V V) are marked on tuning dial
Input terminalsF connector
Input impedance75 Ohms
Display typeAnalog meter
Display unitdBmV

Photo:Lew Chandler

Photo:Lew Chandler

Photo:Lew Chandler

Texscan/Theta-Com Model 7270 Signal Level Meter
Includes optional auxiliary tuner module for
CATV superband or UHF broadcast band.


TypeSignal Level Meter and general-purpose multimeter (includes functions to measure RF signal level, AC volts, DC volts, and DC resistance).
Tuner type Continuous
Tuning range • Main tuner: 5-216 MHz with VHF channels highlighted
• Auxiliary UHF Tuner: 210-300 MHz
• Auxiliary Superband Tuner: UHF channels 14-83
Input terminalsF connectors
Input impedance75 Ohms
Display typeAnalog meter
Display unitdBmV, DC volts, AC volts, ohms


Photo:Lew ChandlerHigh resolution
Shown with auxiliary superband tuner module

Photo:Lew ChandlerHigh resolution

Photo:Lew Chandler

Texscan/Theta-Com Model 7271 Signal Level Meter
Includes optional auxiliary tuner module for
CATV superband or UHF broadcast band.

TypeSignal Level Meter and general-purpose multimeter (includes functions to measure RF signal level, AC volts, DC volts, and DC resistance).
Tuner typeContinuous
Tuning range • Main tuner: 5-216 MHz with VHF channels highlighted
• Auxiliary UHF Tuner: 210-300 MHz
• Auxiliary Superband Tuner: UHF channels 14-83
Input terminalsF connectors
Input impedance75 Ohms
Display typeAnalog meter
Display unitdBmV, DC volts, AC volts, ohms


Photo:Lew ChandlerHigh resolution
Shown with auxiliary superband tuner module
   
Texscan Corporation Manual
Texscan Signal Level Meter Model 7271


Photo:Lew Chandler

Photo:Lew Chandler

Photo:Lew Chandler

Photo:Lew Chandler

Texscan/Theta-Com Model 7272 Signal Level Meter
Includes optional auxiliary tuner module for
CATV superband or UHF broadcast band.

TypeSignal Level Meter and general-purpose multimeter (includes functions to measure RF signal level, AC volts, DC volts, and DC resistance).
Tuner type Continuous
Tuning range • Main tuner: 5-216 MHz with VHF channels highlighted
• Auxiliary UHF Tuner: 210-300 MHz
• Auxiliary Superband Tuner: UHF channels 14-83
Input terminalsF connectors
Input impedance75 Ohms
Display typeAnalog meter
Display unitdBmV, DC volts, AC volts, ohms

Photo:Lew ChandlerHigh resolution
Shown with auxiliary UHF tuner module
   
Texscan Corporation Manual
Texscan Signal Level Meter Model 7272


Photo:Lew Chandler

Photo:Lew Chandler

Texscan Auxiliary Tuner Modules for 727-Series SLMs

The Texscan Model 7271 and 7272 Signal Level Meters accept auxiliary tuner modules designed to extend the range of the meter beyond the VHF band.   Both meters were equipped with front-panel slide switches to select between the meter's internal VHF tuner and the auxiliary tuner module.

Three auxiliary tuner modules are shown here.   Units identified "Jerrold" were manufactured by Texscan and sold by Jerrold under Jerrold-Texscan brand name.   All photos by Lew Chandler.

Texscan Model SB-7270
SuperBand Converter
Jerrold Model SB-727
SuperBand Converter
Jerrold Model UH-727
UHF Adapter

High resolution

High resolution

High resolution

Transvision Field Strength Meter
VHF channels 2-13 Screw terminals 300 ohms
TypeField Strength Meter
Tuner type Detent channel selection plus continuous fine tuning control (appears to be a standard consumer-grade turret tuner).
Tuning range
Input terminals
Input impedance
Display typeAnalog Meter
Display unitRelative voltage on an arbitrary 0-10 scale

Photo:Lew ChandlerHigh resolution

Photo:Lew Chandler

Photo:Lew Chandler

Photo:Lew Chandler

Transvision Field Strength Meter

TypeField Strength Meter
Tuner type Detent channel selection plus continuous fine tuning control
Tuning rangeVHF channels 2-13
Input terminalsScrew terminals
Input impedance300 ohms
Display typeAnalog Meter
Display unitRelative voltage on an arbitrary 0-10 scale


Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Video Instrument Corp Signal Level Meter

TypeSignal Level Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts and Decibels


Photo:Lew ChandlerHigh resolution

Vikoa Inc. Signal Level Meter Model 481

TypeSignal Level Meter
Tuner typeContinuous
Tuning rangeVHF channels 2-13
Input terminalsF connector
Input impedance75 ohms
Display typeAnalog meter
Display unitMicrovolts and Decibels

Photo:Lew ChandlerHigh resolution
Photo:Lew Chandler

Wavetek Model LM-13 Signal Level Meter

Photo:Lew ChandlerHigh resolution
    Wavetek\Mid State Operating Handbook
Wavetek Signal Level Meter Model LM-13


Photo:Lew ChandlerHigh resolution

Wavetek Model SAM-1000 Signal Analysis Meter

Photo:Lew Chandler

Photo:Lew ChandlerHigh resolution

 
Photo:Lew Chandler

Wavetek Model SAM-1500 Signal Analysis Meter

Photo:Lew Chandler

Photo:Lew ChandlerHigh resolution

 
Photo:Lew Chandler

Wavetek SAM I Signal Analysis Meter

Photo:Lew Chandler

Photo:Lew ChandlerHigh resolution
    Copy of a Wavetek Operating Handbook
Wavetek Sam 1 & Sam 11 Testing and Operation Handbook


Photo:Lew ChandlerS

Wavetek SAM II Signal Analysis Meter

Photo:Lew Chandler

Photo:Lew ChandlerHigh resolution
    Copy of a Wavetek Operating Handbook
Wavetek Sam 1 & Sam 11 Testing and Operation Handbook


Photo:Lew Chandler

Wavetek SAM I 450 Signal Analysis Meter

Photo:Lew Chandler

Photo:Lew ChandlerHigh resolution

Photo:Lew Chandler

Photo:Lew Chandler

 
Photos:Lew Chandler

Wavetek SAM Jr Signal Level Meter

Photo:Lew ChandlerHigh resolution

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