Logetronics Inc. of Springfield has reported a net loss for 1982, while the Sterling, Va., computer manufacturer Systematics General Corp. recorded a profit for the fourth-quarter and for the year.

Old Dominion Real Estate Investment Trust also reported increased earnings. Area utilities also reported monthly and yearly figures, with Virginia Electric and Power Co. earnings dropping from the January 1982 rate, while Potomac Electric Power Co. earnings registered the same for the month as last year's.

Logetronics Inc. of Springfield reported a net loss of $2.64 million for the 12 months of 1982 (or $1.96 per share). In the fourth quarter of 1982, the company experienced a $1.1 million loss (83 cents), compared with net income of $250,000 (21 cents) in the last three months of 1981.

Fourth-quarter revenues in 1982 were $6.8 million, or 14 percent lower than the third quarter. Revenues for the 12-month period were $35.8 million, $3.47 million higher than in 1981. This increase, the company said, "was primarily due to the inclusion of 1982 revenues totaling $9.2 million from companies acquired in December 1981, whose revenues were not included in 1981."

Sytematics General Corp. reported $312,000 in profits and $4.6 million in sales for the 1982 fourth quarter. The figures compare to $23,000 in profits and $3.1 million in sales for the same period last year.

For the 12-month period ending Dec. 31, sales totaled $15.3 million, compared with $12.2 million in 1981. Similarly, the firm reported net income of $849,000 (60 cents) for the 12-month period. The comparable figures for 1981 were a net loss of $1.2 million and a loss per share of 86 cents.

Old Dominion Real Estate Investment Trust of Richmond reported $4.9 million in total revenues for 1982, a 26 percent increase over the year before. Net income for the 12-month period was $401,735 (47 cents), down from $1.4 million ($1.98) for the same period in 1982.

For the fourth quarter, the trust reported revenues of $1.3 million and cash flow of $255,194, compared to $1.1 million and $200,733 for the same period in 1981. Net income for the final three months of 1982 was $77,598 (9 cents), compared with $534,318 (71 cents) in the fourth quarter of 1981.

Vepco said net income for January 1983, was $28.8 million, with earnings at 20.1 cents per share of common stock, 9.4 cents per share less than the 29.5 cents of January 1982. For the 12-month period ending Jan. 31, Vepco announced earnings of $1.90 a share of common stock, up 4 cents from the same period ending Jan. 31, 1982.

Pepco reported that earnings for the month of January were 15 cents a share, the same as January 1982. For the 12-month period ending Jan. 31, earnings were $2.27 per share, compared to $2.13 for the same period a year before.