Please call for pricing and
availability.
All price quotes and purchases should be directed to Belinda McDonald, Office
Manager
belinda@grove-ent.com,
or call (800) 438-8155, or fax (828) 837-2216.
FIXED BASE RDF ANTENNAS
Rugged, weather sealed and transportable, the DFA series is readily mast- or tower-mounted for fixed-site DF applications. Being of a true H-Adcock design, they avoid the erratic performance characteristic of loops and provide superior sensitivity and listen-through capability over many pseudo-Doppler designs.
The signal processing offers ultra-high signal handling capability in dense RF environments. A supplied isolation mast assures symmetrical, continuous-frequency performance which is not distorted by a supporting mast, tower or changes in height. The elements and isolation mast are removable for storage and transport.
The DFA series “personality module” communicates directly with all B series bearing processors via a single, 8 meter, RS-232 digital interface cable (custom cable lengths are available), displaying the antenna model and frequency coverage on the DF processor to avoid out-of-band operation.
The DFA series is ideally suited for law enforcement, surveillance, SIGINT, frequency management, interference location, search and rescue, scientific, and other applications requiring professional quality, radio direction finding.
General Specifications for Fixed Base RDF Antennas
RDF Technique: Single-channel, 2-phase, H-Adcock array
Bearing Accuracy: (Stated values are typical for an ideal terrain)
Polarization: Vertical
Output Impedance: 50 ohms nominal
2nd and 3rd order intercept: (Stated values are referenced to derived sense input)
Power Requirement: 11-16 VDC @ 100-400 mA depending on model
Operating Temperature: -40 to +60 degrees C
Storage Temperature: -40 to +70 degrees C
Humidity Tolerance: 0-100%
Included: 8 meter serial cable, 5’- 8’ isolation mast and a 2’ L x 2” D stainless steel mast pipe
DFA-1248B1 (20-174 MHz) PRODUCT DATA SHEET
SPECIFICATIONS (subject to change without notice)
Frequency coverage: 20-88/88-174 MHz
Bearing Accuracy: 1.5 degrees typical in ideal location
2nd Order Intercept: +25 dBm typ. 20-65 MHz, +40 dBm typ. 65-174 MHz
3rd Order Intercept: +15 dBm typ. 20-65 MHz, +25 dBm typ. 65-174 MHz
Power Requirements: 11-16 VDC @ 200 mA (negative ground)
Dimensions: 162" H x 20" W x 20 D" including 8’ iso-mast and 2' mast support pipe
Weight: 36 lbs.
DFA-1265B1 (20-1000 MHz)
PRODUCT DATA SHEET
NOTE: CURRENTLY UNDER DEVELOPMENT
Frequency Coverage: 20-88/88-200/200-470/470-1,000 MHz
Bearing Accuracy: 4.0 degrees max., 2.0° typical (VHF), 3.0° typical (UHF) in ideal location
2nd Order Intercept: +40/+28 dBm typical
3rd Order Intercept: +25/+13 dBm typical
Power Requirements: 11-16 VDC @ 400 mA (negative ground)
Dimensions: 16 H x 1.7' W x 1.7' D
Weight: 40 lbs.
DFA-1310B1 (75-300 MHz) PRODUCT DATA SHEET
Frequency Coverage: 75-300 MHz
Bearing Accuracy: 3.0 degrees RMS max., 1.5 degrees typical in ideal location
2nd Order Intercept: +40 dBm typical
3rd Order Intercept: +25 dBm typical
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 95" H x 13.5" W x 13.5" D Including 5' iso-mast and 24" support pipe
Weight: 24 lbs.
DFA-1325B1 (75-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 75-300/300-1,000 MHz
Bearing Accuracy: 4.0 degrees max., 2.0° typical VHF, 3.0° typical UHF in ideal location
2nd Order Intercept: +40/+28 dBm typical
3rd Order Intercept: +25/+13 dBm typical
Power Requirements: 11-16 VDC @ 400 mA (negative ground)
Dimensions: 143”' H x 22” W x 22” D
Weight: 62.5 lbs.
DFA-1405B1 (300-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 300-1,000 MHz
Bearing Accuracy: 3.5 degrees max., 2.5 degrees typical in ideal location
2nd Order Intercept: +28 dBm typical
3rd Order Intercept: +13 dBm typical
Power Requirements: 11-16 VDC @ 280 mA (negative ground)
Dimensions: 105.3" H x 22.5" W x 22.5" D, w/5' iso-mast and 24" support pipe
Structural Weight: 36 lbs.
MOBILE RDF ANTENNAS
This rugged, compact, lightweight, low profile, weather-sealed mobile RDF series is easily installed on cars, vans, aircraft, or any platform having a sizeable metallic ground plane. The elements are easily removed for shipping and storage.
The DMA series “personality module” communicates directly with all B series bearing processors via a single, 4.5 meter, RS-232 digital interface cable (custom cable lengths are available), displaying the antenna model and frequency coverage on the DF processor to avoid out-of-band operation.
Nylon mounting straps for vehicle roof-top installations are anchored with rain-gutter hooks, and are looped into the slots of the 1/8" thick bottom plate. A rubber mounting pad is adhered to the bottom-plate for vehicle paint protection.
For sturdy, permanent, bulkhead mounting, the bottom-plate flange has 8 quarter-inch holes; for this application, the mounting pad can be supplied detached from the bottom-plate upon request.
The DMA series is ideally suited for law enforcement, surveillance, SIGINT, frequency management, interference location, search and rescue, scientific, and other applications requiring professional quality, radio direction finding.
General Specifications for Mobile RDF Antennas
DF Technique: Single-channel, 2-phase Adcock array
Bearing Accuracy: 1.5 degrees typical in ideal location
Polarization: Vertical
Output Impedance: 50 ohms nominal
2nd Order Intercept: +40 dBm typical
3rd Order Intercept: +25 dBm typical
Power Requirement: 11-16 VDC @ 90-380 mA depending on model
Operating Temperature: -40 to +60 degrees C
Storage Temperature: -40 to +70 degrees C
Humidity: 0-100%
(NOTE: Weights shown do not include cables)
DMA-1248B1 and DMA-1254B1 (20-174 MHz/ 20-470 MHz) PRODUCT DATA SHEET
Frequency Coverage DMA 1248B1: 20-88/88-174 MHz;
Frequency Coverage DMA-1254B1: 20-88/88-174/174-470 MHz
Bearing Accuracy: 3° RMS (20-174 MHz), 4.5° RMS (174-470 MHz) in ideal location
2nd Order Intercept: +40/+36 dBm typical 88-470 MHz
3rd Order Intercept: +25/+25 dBm typical 88-470 MHz
Power Requirements: 11-16 VDC @ 160/280 mA (negative ground)
Dimensions: 26.5" H x 22.0" W x 22.0" D
Weight: 13 lbs.
DMA-1265B1 (20-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 20-88/88-200/200-470/470-1,000 MHz
Bearing Accuracy: 3° VHF, 5° RMS UHF in ideal location
2nd Order Intercept: +25 dBm 20-88 MHz, +40 dBm 88-200 MHz, +36 dBm 200-470 MHz, +25 dBm 470-1,000 MHz
3rd Order Intercept: +15 dBm 20-88 MHz, +25 dBm 88-200 MHz, +25 dBm 200-470 MHz, +12 dBm (470-1,000 MHz
Power Requirements: 11-16 VDC @ 380 mA
Dimensions: 26.50" H x 22.0" W x 22.0" D
Weight: 15 lbs.
DMA-1270B1 (27-220 MHz) PRODUCT DATA SHEET
Frequency Coverage: 27-88/88-220 MHz
Bearing Accuracy: 3.0 degrees max., 1.5 degrees typical in ideal location
2nd Order Intercept: +40 dBm typical 88-220 MHz
3rd Order Intercept: +25 dBm typical 88-220 MHz
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 24" H x 15.875" W x 15.875" D
Weight: 7.0 lbs.
DMA-1271B1 (27-220 MHz) PRODUCT DATA SHEET
Frequency Coverage: 27-88/88-300 MHz
Bearing Accuracy: 3.0 degrees RMS max., 1.5 degrees typical in ideal location
2nd Order Intercept (#): +40 dBm typical 88-300 MHz
3rd Order Intercept (#): +25 dBm typical 88-300 MHz
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 15.75" H x 15.875" W x 15.875" D
Weight: 6.5 lbs.
DMA-1276B1 (27-520 MHz) PRODUCT DATA SHEET
Frequency Coverage: 27-88/88-250/250-520 MHz
Bearing Accuracy: 3° maximum, 1.5° typical VHF, 2.0° typical UHF
2nd Order Intercept: +40/+36 dBm typical 88-250/250-520 MHz
3rd Order Intercept: +25/+25 dBm typical 88-250/250-520 MHz
Power Requirements: 11-16 VDC @ 250 mA negative ground
Dimensions: 15.75" H x 15.875" W x 15.875" D
Weight: 7.5 lbs. (less cables)
DMA-1286B1 (27-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 27-88/88-350/350-1,000 MHz
Bearing Accuracy: 3° typical VHF, 5° typical UHF in ideal location
2nd Order Intercept: +40 dBm 88-350 MHz, +25 dBm 350-1,000 MHz
3rd Order Intercept: +25 dBm 88-350 MHz, +12 dBm 350-1,000 MHz
Power Requirements: 11-16 VDC @ 380 mA
Dimensions: 17.875" H x 22.0" W x 22.0" D
Weight: 12.3 lbs.
DMA-1309B1 (80-220 MHz) PRODUCT DATA SHEET
Frequency Coverage: 80-220 MHz
Bearing Accuracy: 3.0 degrees max., 1.5 degrees typical in ideal location
2nd Order Intercept: +40 dBm typical
3rd Order Intercept: +25 dBm typical
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 24" H x 15.875" W x 15.875" D
Weight: 7.0 lbs.
DMA-1310B1 (75-300 MHz) PRODUCT DATA SHEET
Frequency Coverage: 75-300 MHz
Bearing Accuracy: 3.0 degrees, 1.5 degrees typical in ideal location
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 15.75" H x 15.875" W x 15.875" D
Weight: 6.5 lbs.
DMA-1315B1 (80-520 MHz) PRODUCT DATA SHEET
Frequency Coverage: 80-520 MHz (two bands)
Bearing Accuracy: 3° maximum, 1.5° typical VHF, 2.0° typical UHF in ideal location
2nd Order Intercept: +40/+36 dBm typical VHF/UHF
3rd Order Intercept: +25/+25 dBm typical VHF/UHF
Power Requirements: 11-16 VDC @ 170 mA (negative ground)
Dimensions: 15.75" H x 15.875" W x 15.875" D
Weight: 7.5 lbs.
DMA-1325B1 (75-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 75-350/350-1,000 MHz
Bearing Accuracy: 3° VHF, 5° UHF in ideal location
2nd Order Intercept: +40 dBm (75-350 MHz), +25 dBm (350-1,000 MHz)
3rd Order Intercept: +25 dBm (75-350 MHz), +12 dBm (350-1,000 MHz)
Power Requirements: 11-16 VDC @ 350 mA
Dimensions: 17.875" H x 22.0" W x 22.0" D
Weight: 12 lbs.
DMA-1349B1 (148-470 MHz) PRODUCT DATA SHEET
Frequency Coverage: 148-470 MHz continuous
Bearing Accuracy: 3.0 degrees max., 2.0 degrees typical
2nd Order Intercept: +36 dBm typical
3rd Order Intercept: +25 dBm typical
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 9.5" H x 15.875" W x 15.875"D
Weight: 6.0 lbs.
DMA-1366B1 (220-520 MHz) PRODUCT DATA SHEET
Frequency Coverage: 220-520 MHz continuous
Bearing Accuracy: 3.0 degrees max., 2.0 degrees typical
2nd Order Intercept: +36 dBm typical
3rd Order Intercept: +25 dBm typical
Power Requirements: 11-16 VDC @ 90 mA (negative ground)
Dimensions: 8.9" H x 15.875" W x 15.875" D
Weight: 6.0 lbs.
DMA-1418B1 (37-1000 MHz) PRODUCT DATA SHEET
Frequency Coverage: 370-1,000 MHz
Bearing Accuracy: 3.5 degrees max., 2.5 degrees typical in ideal location
2nd Order Intercept: +28 dBm typical
3rd Order Intercept: +13 dBm typical
Power Requirements: 11-16 VDC @ 280 mA (negative ground)
Dimensions: 5.0" H x 15.875" W x 15.875" D
Weight: 6.0 lbs.
DRD-100 REMOTE DISPLAY UNIT PRODUCT DATA SHEET
The compact DRD-100 remote display unit was developed for the convenience of close, confined quarters as in mobile and cockpit applications. The display is identical to that shown on the DFP-1000B/DFP-101B to which it is connected, showing polar and numeric bearings, signal strength, operating mode, IF bandwidth, DF antenna model with its frequency coverage, and other information as well. Measuring only 3.2" x 5.0" x 0.75” and weighing a mere 7 oz., the unit is supplied with Velcro strips for mounting on a dashboard or instrument panel. A 3 meter interface cable is included; custom lengths are available.