Masters Communications EPGA Series Enclosed VHF and UHF Preamps

Custom Products from Masters Communications

EPGA-Series Enclosed RF Preamplifiers for repeater application.
$145.00 built, tested, tuned - any available connector choice - shipping extra.
$14.50 USPS Priority Insured Shipping in the US.
Shipping on foreign orders are quoted by destination, type and desired type and speed of delivery.

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Masters Communications EPGA-Series Preamps - Standard Features:
These standard features are included in all EPGA-Series Preamp Products.

Low Noise ~ 1.6dB noise figure.
100% totally shielded aluminum box - properly machined for rugged / stable opertion.
12VDC operation at low current draw (10-15V acceptable - about 100mA).
P1dB = +11 to +12 dBm at output connector (+17 to +20 at the device).
Available with BNC, UHF, or N Female Connectors (or a unique combination of any two - - can eliminate adapters)
Moderate Gain (~14dB) - Less chance of receiver overload.
These preamps are NOT available as unassembled project kits - comes ready to install.
Power connection is made on the outside via DC Feedthru and ground lug (soldering preferred).
24" Siamese Black/Red power wire is provided - longer lentgth just ask - small fee may apply.
$145.00 assembled, tested, & tuned - any connector option (BNC, UHF, N).
Built to order and professionally tuned on a HP 8753ES Vector Network Analyzer.
Great input match so your duplexer notch tuning is not pulled out of whack.
Comes with performance graphs showing gain and input return loss (match) on your receive frequency.
Email Kevin to get one built for your repeater.

Individual Features and Model Comparison:

Click on a model number for more information and ordering via email link.

Feature or Specification:

Frequency Range 135-162 MHz 219-225 MHz 420-470 MHz 10-1000 MHz

Application Ham or Commercial Ham Ham, Commercial or GMRS Wide-Band Two-Way Radio

Gain in dB (nominal +/- 1dB) 14 dB 14 dB 14 dB 14 dB

Typical Noise Figure in dB 1.6 dB 1.6 dB 1.6 dB 0.6 dB

Typical Input Return Loss 30 dB 30 dB 30 dB 20 dB

Output Return Loss >20 dB >20 dB >20 dB >20 dB

Overload Point 0 dBm 0 dBm 0 dBm -2 dBm

P1dB +11 dBm +11 dBm +11 dBm +12 dBm

Bandwidth in MHz. (-3dB) 25 25 25 1000

DC Power Requirement 12VDC @ 100mA 12VDC @ 100mA 12VDC @ 100mA 12VDC @ 100mA

Available RF Connectors
(any combination of two) BNC Female
UHF (SO239) Female
Type N Female BNC Female
UHF (SO239) Female
Type N Female BNC Female
UHF (SO239) Female
Type N Female BNC Female
UHF (SO239) Female
Type N Female

Feature or Specification:
Frequency Range	135-162 MHz	219-225 MHz	420-470 MHz	10-1000 MHz
Application	Ham or Commercial	Ham	Ham, Commercial or GMRS	Wide-Band Two-Way Radio
Gain in dB (nominal +/- 1dB)	14 dB	14 dB	14 dB	14 dB
Typical Noise Figure in dB	1.6 dB	1.6 dB	1.6 dB	0.6 dB
Typical Input Return Loss	30 dB	30 dB	30 dB	20 dB
Output Return Loss	>20 dB	>20 dB	>20 dB	>20 dB
Overload Point	0 dBm	0 dBm	0 dBm	-2 dBm
P1dB	+11 dBm	+11 dBm	+11 dBm	+12 dBm
Bandwidth in MHz. (-3dB)	25	25	25	1000
DC Power Requirement	12VDC @ 100mA	12VDC @ 100mA	12VDC @ 100mA	12VDC @ 100mA
Available RF Connectors (any combination of two)	BNC Female UHF (SO239) Female Type N Female	BNC Female UHF (SO239) Female Type N Female	BNC Female UHF (SO239) Female Type N Female	BNC Female UHF (SO239) Female Type N Female

EPGA103+2M

EPGA103+220

EPGA103+445

EPGA103+WB

More Information:
Email Kevin Custer for ordering information and/or support of these exciting products.

Products of Masters Communications, all rights reserved.
Specifications may change without notice.
Images are property of Kevin Custer - W3KKC.
Board layout by Kevin Custer - W3KKC.
HTML December 8, 2025, W3KKC All Rights Reserved!