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CELLTECH RESEARCH INC. Test Report S/N: 092601-169ARU

1955 Moss Court, Kelowna Date of Tests: October 16, 2001

B.C. Canada V1Y 9L3 FCC SAR Evaluation

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Portable VHF PTT Radio Transceiver (150-174MHz)

5.0 DETAILS OF SAR EVALUATION

The RELM WIRELESS CORP. Model: RPV516A Portable VHF PTT Radio Transceiver FCC ID:

ARURPV516A was found to be compliant for localized Specific Absorption Rate (Controlled Exposure)

based on the following test provisions and conditions:

1. The EUT was tested in a face-held configuration with the front of the device placed parallel to the

outer surface of the planar phantom and with a 2.5cm separation distance.

2. The EUT was tested in a body-worn configuration with the attached belt-clip touching the outer

surface of the planar phantom and providing a 1.4cm separation distance between the back of the

EUT and the outer surface of the planar phantom.

3. The EUT was evaluated for SAR at maximum power and the unit was operated for an appropriate

period prior to the evaluation in order to minimize drift. The conducted power level was checked

before and after each test.

4. The conducted power was measured according to the procedures described in FCC Part 2.1046.

5. The location of the maximum spatial SAR distribution (Hot Spot) was determined relative to the

device and its antenna.

6. The EUT was tested with a fully charged battery.

Note: Under continuous transmission the antenna became very warm and began to droop slightly.

The device was cooled for brief periods during the evaluation in order to stabilize the antenna. The

lower than expected SAR values reported for this particular EUT operating at the rated power levels

can be attributed to excessive heating in the plastic antenna housing.

6.0 EVALUATION PROCEDURES

The Specific Absorption Rate (SAR) evaluation was performed in the following manner:

a. (i) The evaluation was performed in the applicable area of the phantom depending on the type of

device being tested. For devices held to the ear during normal operation, both the left and right ear

positions were evaluated in accordance with FCC OET Bulletin 65, Supplement C (Edition 01-01).

(ii) For body-worn and face-held devices the planar section of the phantom was used.

b. The SAR was determined by a pre-defined procedure within the DASY3 software. Upon

completion of a reference and optical surface check, the exposed region of the phantom was

scanned near the inner surface with a grid spacing of 20mm x 20mm.

c. For frequencies below 500MHz a 4x4x7 matrix was performed around the greatest spatial SAR

distribution found during the area scan of the applicable exposed region. For frequencies above

500MHz a 5x5x7 matrix was performed. SAR values were then calculated using a 3-D spline

interpolation algorithm and averaged over spatial volumes of 1 and 10 grams.

d. If the EUT had any appreciable drift over the course of the evaluation, then the EUT was re-

evaluated. Any unusual anomalies over the course of the test also warranted a re-evaluation.

e. The E-field probe conversion factors outside the calibrated points were determined as follows:

• In brain and body tissue between 750MHz and 1GHz, the conversion factor decreases

approximately 1.3% per 100MHz frequency increase.

• In brain and body tissue between 1.6GHz and 2GHz, the conversion factor decreases

approximately 1% per 100MHz frequency increase.

For body tissue around 900MHz (permittivity about 30% higher and conductivity about 15%

higher than brain tissue):

• The conversion factor in body tissue is approximately 3% lower than for brain tissue for the

same frequency.