Jason Winkler
Executive Vice President & Chief Financial Officer at Motorola Solutions
Thank you, Greg. Revenue for the quarter grew 15% and was above our guidance with double-digit growth in both segments, both regions and in all three technologies. FX headwinds during the quarter were $45 million, while acquisitions added $42 million. GAAP operating earnings were $399 million or 18.4% of sales, up from 12.6% in the year-ago quarter. Non-GAAP operating earnings was $532 million, up 42% from the year-ago quarter and non-GAAP operating margin was 24.5%, up 470 basis points. This strong year-over-year increase in both GAAP and non-GAAP operating earnings was driven by higher sales, lower direct material costs, inclusive of lower broker spend in attaining semiconductors and improved operating leverage.
GAAP earnings per share was $1.61 compared to $1.54 in the year-ago quarter. Non-GAAP earnings per share was $2.22, up 31% from a $1.70 last year. This strong growth in earnings per share was driven by higher sales and margins, partially offset by a higher effective tax rate in the current year. Opex in Q1 was $530 million, up $38 million versus last year, primarily due to acquisitions and higher incentives in the current year.
Turning to cash flow, Q1 operating cash flow was a usage of $8 million and free cash flow was usage of $62 million. The cash flow in Q1 was in line with our expectations and included a onetime cash tax payment of $70 million related to an IP reorganization we completed last year. It also reflects our strategic decision to carry higher inventories. For the full year, we continue to expect operating cash flow to be approximately $1.9 billion with greater contributions in the second half, consistent with the shape of last year's cash flow. The capital allocation for Q1 included $148 million in cash dividends, $140 million in share repurchases and $54 million of capex.
Moving to our segment results, in the Products and SI segment, sales were up 18% versus last year, driven by improved supply availability in the current year and the benefit from pricing actions flowing through. Currency headwinds were $19 million and revenue from acquisitions in the quarter added $12 million. Operating earnings were $246 million or 18.9% of sales, up from 8.7% in the prior year, driven by higher sales, lower material costs, inclusive of lower broker spend and improved operating leverage.
Some notable Q1's and achievements in this segment include a $27 million county wide P25 system for Johnson County, Missouri; a $20 million P25 device order for a US state and local customer; a $17 million P25 system for Wakulla County, Florida; a $16 million fixed video contract for a large healthcare system; and a $15 million APX and APX NEXT devices order for the Kansas Highway Patrol.
In Software and Services, revenue was up 10%, including 19% growth in command center and 20% growth in video. Revenue from acquisitions was $30 million in the quarter and FX headwinds were $26 million. Operating earnings in the segment were $286 million, up 3% versus last year and operating margins were 32.9%, down from 35.2% last year on mix, higher costs from acquisitions and FX. For the full year, we expect operating margins in this segment to be comparable to last year to slightly down, driven by higher costs from acquisitions primarily Rave.
Some notable Q1 highlights in this segment include a $340 million federal IDIQ Award to combine existing services and provide new LMR services to the US Air Force, which has long been an important customer of ours. Given the nature of this 10-year agreement, we recorded only $11 million of backlog in the first quarter and expect backlog to be recorded ratably over time for the remainder of the contract. Additionally, we expect new services included it -- to contribute an incremental $60 million of revenue over the 10-year period when compared to the previous service agreements.
We also received a $21 million multiyear support services extension for Portugal's nationwide TETRA system, a $10 million LMR services agreement with a federal agency and a $9 million fixed video services contract renewal with the City of Chicago.
Looking at regional results, North America Q1 revenue was $1.5 billion, up 14% on strong growth in all three technologies. International Q1 revenue was $679 million, up 16% versus last year with growth in all three technologies, partially offset by unfavorable FX.
Moving to backlog; ending backlog was a Q1 record of $14.1 billion, up 5% or $623 million versus last year, inclusive of $372 million of unfavorable FX. These results were driven by strong demand across all three technologies. Sequentially, backlog was down $280 million driven primarily by typical order seasonality in North America. In the Products and SI segment, ending backlog was up $601 million or 15%, driven primarily by strong LMR demand. Sequentially, backlog was down $186 million due to North America orders seasonality, following a record backlog in Q4.
In Software and Services, backlog was up $22 million compared to last year, driven by strong demand for multi-year software and services contracts in North America, partially offset by the revenue recognition for Airwave, along with $329 million of unfavorable FX and the adjustment related to the exit of ESN contract that we announced last year. Sequentially, backlog was down $94 million driven primarily by revenue recognition for Airwave.
Turning now to our outlook, we expect Q2 sales to be up 10% to 11%, with non-GAAP earnings per share between $2.49 and $2.54 per share. This assumes weighted average share count of approximately 173 million shares and an effective tax rate of approximately 24%. For the full year, we are increasing both our revenue and EPS guidance. We now expect revenue in the range of $9.725 billion to $9.775 billion, up from our prior range of $9.65 billion to $9.7 billion, and we expect non-GAAP earnings per share between $11.21 and $11.29, up from our prior guidance of $11.10 and $11.22 per share. This full year outlook assumes $25 million of FX headwind, a weighted average share count of approximately 172 million shares and an effective tax rate of 23% to 24%.
As I mentioned on the last call, the increase from our 20.1% tax rate last year is due to lower tax benefits on share comp and a higher UK tax rate in the current year, both of which combined represented approximately $0.50 headwind in our full year earnings per share guide. The increased outlook for the full year is a reflection of the continued strength of our business and demand for our solutions. The revenue guidance reflects expectations for strong double-digit growth in the first half as well as continued growth in the second half of the year, which comes on top of the 15% growth we saw in the second half of last year.
I'll now turn the call back to Greg.